OXYGENHUB
◆ carried-not-removed oxygen / src / cli / workspace.rs
96.3 KiB · Rust · last changed A carried switch no longer says carried files were removed 17 days ago source blame history raw
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//! Commands that act on the local repository and working copy.
2
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use super::format::{
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    author_name, deps_line, deps_of, plural, short_id, signature_line, signature_mark_of,
5 
    subject_of, via, when,
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};
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use super::json;
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use super::open;
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use super::ui;
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use anyhow::Result;
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use oxy_core::objects::ChangeKind;
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use oxy_core::repo::SignatureStatus;
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use oxy_core::repo::{render_change, ChangeStatus, Repo};
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use std::io::Write;
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use std::path::PathBuf;
16
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pub fn init(path: Option<PathBuf>, bare: bool, store: Option<&str>) -> Result<i32> {
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    let path = path.unwrap_or(std::env::current_dir()?);
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    let repo = Repo::init_new(&path, bare, store)?;
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    println!(
21 
        "{} {}oxy repository in {}",
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        ui::done("Initialized"),
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        if bare { "bare " } else { "" },
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        ui::path(repo.root().display())
25 
    );
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    println!(
27 
        "{}",
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        ui::kv("bookmark", ui::bookmark(&repo.config.bookmark))
29 
    );
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    if let Some(url) = &repo.config.storage_url {
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        println!(
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            "{}",
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            ui::kv(
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                "store",
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                format!(
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                    "{url} (cache in {}, up to {} MiB)",
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                    ui::path(repo.root().join(".oxy/cache").display()),
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                    repo.config.storage_cache >> 20
39 
                )
40 
            )
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        );
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    }
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    println!(
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        "{}",
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        ui::kv(
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            "author",
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            format!(
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                "{} <{}>",
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                ui::author(&repo.config.author_name),
50 
                repo.config.author_email
51 
            )
52 
        )
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    );
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    Ok(0)
55 
}
56
57 
fn status_tag(s: ChangeStatus) -> &'static str {
58 
    match s {
59 
        ChangeStatus::Added => "A",
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        ChangeStatus::Modified => "M",
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        ChangeStatus::Removed => "D",
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        ChangeStatus::Renamed => "R",
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        ChangeStatus::ModeChanged => "X",
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        ChangeStatus::ConflictEdited => "C!",
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        ChangeStatus::Resolved => "V",
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    }
67 
}
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/// New untracked files left out of the snapshot for their size (oxygen#98):
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/// named, with how to keep them out quietly or take them in.
71 
fn print_skipped_large(repo: &Repo) {
72 
    let skipped = repo.skipped_large();
73 
    if skipped.is_empty() {
74 
        return;
75 
    }
76 
    let size = |n: u64| {
77 
        if n >= 1 << 30 {
78 
            format!("{:.1} GiB", n as f64 / (1u64 << 30) as f64)
79 
        } else {
80 
            format!("{:.0} MiB", n as f64 / (1u64 << 20) as f64)
81 
        }
82 
    };
83 
    println!();
84 
    println!(
85 
        "{} {}",
86 
        ui::section(ui::warn("Not tracked")),
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        ui::dim(format!("new files over {}", size(repo.config.max_new_file)))
88 
    );
89 
    for (p, n) in &skipped {
90 
        println!("  {} {}  {}", ui::caution(), ui::path(p), ui::dim(size(*n)));
91 
    }
92 
    println!(
93 
        "  {} {}",
94 
        ui::note(),
95 
        ui::dim(
96 
            "to leave them out quietly, list them in .oxyignore; to track one, \
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             raise snapshot.max-new-file-size (oxy config snapshot.max-new-file-size 2G)"
98 
        )
99 
    );
100 
}
101
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/// Name what a checkout removed from the working copy (oxygen#102): a
103 
/// switch to a bookmark lacking files takes them off disk, which an
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/// editor open on the tree notices before a person reading a count does.
105 
fn print_removed(r: &oxy_core::repo::CheckoutReport) {
106 
    if r.removed == 0 {
107 
        return;
108 
    }
109 
    let more = r.removed.saturating_sub(r.removed_paths.len());
110 
    let names = r.removed_paths.join(", ");
111 
    let tail = if more > 0 {
112 
        format!(" and {more} more")
113 
    } else {
114 
        String::new()
115 
    };
116 
    let lead = if r.removed >= 20 {
117 
        ui::caution()
118 
    } else {
119 
        ui::note()
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    };
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    println!(
122 
        "  {} {}",
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        lead,
124 
        ui::dim(format!(
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            "removed from disk (the bookmark does not have them): {names}{tail}"
126 
        ))
127 
    );
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}
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/// Name the work a switch carried (oxygen#120): it is still on disk, as it
131 
/// was, on the new bookmark.
132 
fn print_carried(paths: &[String]) {
133 
    if paths.is_empty() {
134 
        return;
135 
    }
136 
    let shown: Vec<&str> = paths.iter().take(10).map(String::as_str).collect();
137 
    let more = paths.len().saturating_sub(shown.len());
138 
    println!(
139 
        "  {} {}",
140 
        ui::note(),
141 
        ui::dim(format!(
142 
            "carried, as they were: {}{}",
143 
            shown.join(", "),
144 
            if more > 0 {
145 
                format!(" and {more} more")
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            } else {
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                String::new()
148 
            }
149 
        ))
150 
    );
151 
}
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/// Folders holding a repository of their own, which oxy leaves out (oxygen#43):
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/// named, with how to track them.
155 
fn print_untracked_nested(repo: &Repo, nested: &[String]) {
156 
    if nested.is_empty() {
157 
        return;
158 
    }
159 
    println!();
160 
    println!(
161 
        "{} {}",
162 
        ui::section(ui::warn("Not tracked")),
163 
        ui::dim("folders holding a repository of their own")
164 
    );
165 
    for p in nested {
166 
        let kind = if repo.root().join(p).join(".git").exists() {
167 
            "Git"
168 
        } else {
169 
            "Oxygen"
170 
        };
171 
        println!(
172 
            "  {} {}  {}",
173 
            ui::caution(),
174 
            ui::path(format!("{p}/")),
175 
            ui::dim(format!("a nested {kind} repository"))
176 
        );
177 
    }
178 
    println!(
179 
        "  {} {}",
180 
        ui::note(),
181 
        ui::dim(
182 
            "to track one's files, remove its .git (or .oxy); to keep it a repository of its own, \
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             oxy submodule add URL PATH; to leave it out quietly, list it in .oxyignore"
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        )
185 
    );
186 
}
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/// The working copy's changed paths, or that it is clean.
189 
fn print_statuses(statuses: &[oxy_core::repo::PathStatus]) {
190 
    if statuses.is_empty() {
191 
        println!(
192 
            "  {} {}",
193 
            ui::ok(ui::glyph("✔", "*")),
194 
            ui::dim("nothing to commit, working copy clean")
195 
        );
196 
        return;
197 
    }
198 
    println!();
199 
    for s in statuses {
200 
        println!(
201 
            "  {} {}",
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            ui::status_mark(status_tag(s.status)),
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            ui::path(&s.path)
204 
        );
205 
    }
206 
}
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/// Say when the working copy has fallen behind its own bookmark: a
209 
/// "clean" status there hid a pull that left it on old code (oxygen#89).
210 
fn print_behind(repo: &Repo) {
211 
    if let Ok(Some(n)) = repo.working_copy_behind() {
212 
        println!(
213 
            "  {} {}",
214 
            ui::caution(),
215 
            ui::warn(format!(
216 
                "the working copy is behind {}: it lacks {} the bookmark has; oxy checkout brings it up",
217 
                repo.config.bookmark,
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                plural(n, "change")
219 
            ))
220 
        );
221 
    }
222 
}
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pub fn status(json: bool) -> Result<i32> {
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    let repo = open()?;
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    // Answered by the manifest alone, with no history to load (oxygen#35,
227 
    // #41): a clean working copy, or one as the last snapshot left it.
228 
    let known = if json {
229 
        None
230 
    } else {
231 
        repo.status_by_manifest()?
232 
    };
233 
    if let Some(statuses) = known {
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        let (_, wc) = repo.working_copy()?;
235 
        let heads = repo.bookmark_heads()?;
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        println!(
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            "{} {}{}working copy {}{}{}",
238 
            ui::dim("On"),
239 
            ui::bookmark(&repo.config.bookmark),
240 
            ui::sep(),
241 
            ui::id(wc.change_id.short(8)),
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            ui::sep(),
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            ui::dim(plural(heads.len(), "head"))
244 
        );
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        print_behind(&repo);
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        print_statuses(&statuses);
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        print_untracked_nested(&repo, &repo.untracked_nested());
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        print_skipped_large(&repo);
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        return Ok(0);
250 
    }
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    let sp = ui::spinner("Snapshotting the working copy…");
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    let snap = repo.snapshot_status("oxy status")?;
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    let heads = {
254 
        let _t = oxy_core::timing::phase("status: heads");
255 
        repo.bookmark_heads()?
256 
    };
257 
    let _drop = oxy_core::timing::phase("status: print and drop");
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    sp.clear();
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    if json {
260 
        println!("{}", repo.status_json(&snap)?);
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        return Ok(if snap.base_snapshot.is_conflicted() {
262 
            2
263 
        } else {
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            0
265 
        });
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    }
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    println!(
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        "{} {}{}working copy {}{}{}",
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        ui::dim("On"),
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        ui::bookmark(&repo.config.bookmark),
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        ui::sep(),
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        ui::id(snap.wc.change_id.short(8)),
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        ui::sep(),
274 
        ui::dim(plural(heads.len(), "head"))
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    );
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    print_behind(&repo);
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    print_statuses(&snap.statuses);
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    print_untracked_nested(&repo, &snap.untracked_nested);
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    print_skipped_large(&repo);
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    if !snap.base_snapshot.is_conflicted() {
281 
        return Ok(0);
282 
    }
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    println!();
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    println!(
285 
        "{} {}",
286 
        ui::section(ui::err("Conflicts")),
287 
        ui::dim("edit the marked files, or the .oxy-conflict-N candidates, then commit")
288 
    );
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    for c in &snap.base_snapshot.tree.conflicts {
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        println!("  {} tree: {c:?}", ui::err(ui::glyph("✱", "!")));
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    }
292 
    for (p, f) in &snap.base_snapshot.files {
293 
        if f.is_conflicted() {
75167672 Andy McCall 294 
            let state = match snap
295 
                .statuses
296 
                .iter()
297 
                .find(|s| s.path == *p)
298 
                .map(|s| s.status)
299 
            {
300 
                Some(ChangeStatus::Resolved) => {
301 
                    ui::ok(format!("{} resolved in working copy", ui::glyph("✔", "*")))
302 
                }
303 
                Some(ChangeStatus::ConflictEdited) => {
304 
                    ui::warn(format!("{} markers remain", ui::glyph("‼", "!")))
305 
                }
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                _ => ui::err(format!("{} unresolved", ui::glyph("✱", "!"))),
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            };
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            println!("  {}  {state}", ui::path(p));
fce44ae9 Andy McCall ↶ 309 
        }
310 
    }
311 
    Ok(2)
312 
}
313
75167672 Andy McCall 314 
pub fn commit(
315 
    message: &str,
316 
    depends_on: &[String],
317 
    paths: &[String],
318 
    interactive: bool,
319 
    hunks: &[usize],
320 
) -> Result<i32> {
fce44ae9 Andy McCall ↶ 321 
    let repo = open()?;
322 
    let mut deps = Vec::new();
323 
    for d in depends_on {
324 
        deps.push(repo.resolve_change(d)?);
325 
    }
c6aa5bd9 Andy McCall ↶ 326 
    let selection = if !hunks.is_empty() {
327 
        oxy_core::repo::Selection::Hunks(hunks.to_vec())
328 
    } else if interactive {
957fee30 Andy McCall ↶ 329 
        let (_, hunks) = repo.hunks()?;
330 
        if hunks.is_empty() {
331 
            anyhow::bail!("nothing to commit: the working copy matches its base");
332 
        }
75167672 Andy McCall 333 
        let hunks: Vec<_> = hunks
334 
            .into_iter()
335 
            .filter(|h| {
336 
                paths.is_empty()
337 
                    || paths.iter().any(|p| {
338 
                        h.path == *p || h.path.starts_with(&format!("{}/", p.trim_end_matches('/')))
339 
                    })
340 
            })
341 
            .collect();
957fee30 Andy McCall ↶ 342 
        let mut chosen = Vec::new();
343 
        let stdin = std::io::stdin();
344 
        let mut take_rest = false;
345 
        for (n, h) in hunks.iter().enumerate() {
346 
            if take_rest {
347 
                chosen.push(h.index);
348 
                continue;
349 
            }
75167672 Andy McCall 350 
            println!(
351 
                "{} {} {}",
352 
                ui::section(format!("hunk {} of {}", n + 1, hunks.len())),
353 
                ui::path(&h.path),
354 
                ui::dim(format!("(#{})", h.index))
355 
            );
957fee30 Andy McCall ↶ 356 
            for line in h.text.lines() {
75167672 Andy McCall 357 
                let styled = if line.starts_with('+') {
358 
                    ui::ok(line)
359 
                } else if line.starts_with('-') {
360 
                    ui::err(line)
361 
                } else {
362 
                    ui::dim(line)
363 
                };
957fee30 Andy McCall ↶ 364 
                println!("  {styled}");
365 
            }
366 
            loop {
75167672 Andy McCall 367 
                print!(
368 
                    "{} ",
369 
                    ui::warn("Commit this hunk? [y]es [n]o [a]ll remaining [q]uit:")
370 
                );
957fee30 Andy McCall ↶ 371 
                use std::io::Write as _;
372 
                std::io::stdout().flush()?;
373 
                let mut answer = String::new();
374 
                if stdin.read_line(&mut answer)? == 0 {
375 
                    anyhow::bail!("aborted");
376 
                }
377 
                match answer.trim() {
378 
                    "y" | "Y" => {
379 
                        chosen.push(h.index);
380 
                        break;
381 
                    }
382 
                    "n" | "N" | "" => break,
383 
                    "a" | "A" => {
384 
                        chosen.push(h.index);
385 
                        take_rest = true;
386 
                        break;
387 
                    }
388 
                    "q" | "Q" => anyhow::bail!("aborted; nothing committed"),
389 
                    _ => continue,
390 
                }
391 
            }
392 
        }
393 
        if chosen.is_empty() {
394 
            anyhow::bail!("no hunks chosen; nothing committed");
395 
        }
396 
        oxy_core::repo::Selection::Hunks(chosen)
397 
    } else if paths.is_empty() {
398 
        oxy_core::repo::Selection::All
399 
    } else {
400 
        oxy_core::repo::Selection::Paths(paths.to_vec())
401 
    };
135212de Andy McCall ↶ 402 
    let sp = ui::spinner("Committing…");
75051941 Andy McCall ↶ 403 
    let (h, partial) = repo.commit_selection_partial(message, &deps, &selection)?;
5b4c5130 Andy McCall ↶ 404 
    // The metadata only: a first commit's change holds the whole tree.
405 
    let meta = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 406 
    sp.done(&format!(
407 
        "{} {} {}  {}",
408 
        ui::done("Committed"),
5b4c5130 Andy McCall ↶ 409 
        ui::id(meta.change_id.short(8)),
75167672 Andy McCall 410 
        ui::hash(format!("#{}", h.short(12))),
411 
        ui::subject(subject_of(message))
412 
    ));
d4dbab97 Andy McCall ↶ 413 
    print_untracked_nested(&repo, &repo.untracked_nested());
b689779e Andy McCall ↶ 414 
    print_skipped_large(&repo);
75051941 Andy McCall ↶ 415 
    // Only a commit that took part of the working copy leaves anything.
416 
    if partial {
8ab265dc Andy McCall ↶ 417 
        let rest = repo.snapshot_status("oxy commit")?;
957fee30 Andy McCall ↶ 418 
        if !rest.statuses.is_empty() {
75167672 Andy McCall 419 
            println!(
420 
                "  {} {}",
421 
                ui::note(),
422 
                ui::dim(format!(
423 
                    "{} left uncommitted",
424 
                    plural(rest.statuses.len(), "path")
425 
                ))
426 
            );
957fee30 Andy McCall ↶ 427 
        }
428 
    }
98a1620a Andy McCall ↶ 429 
    where_now(&repo);
957fee30 Andy McCall ↶ 430 
    Ok(0)
431 
}
432
433 
pub fn blame(path: &str, json: bool) -> Result<i32> {
434 
    let repo = open()?;
435 
    let lines = repo.blame(path)?;
436 
    if json {
437 
        let items = lines.iter().map(|l| {
438 
            format!(
439 
                "{{\"line\":{},\"change_id\":{},\"hash\":{},\"index\":{},\"author\":{},\"when_ms\":{}}}",
440 
                l.line,
441 
                oxy_core::repo::json_str(&l.change_id.to_hex()),
442 
                oxy_core::repo::json_str(&l.hash.to_hex()),
443 
                l.index,
444 
                oxy_core::repo::json_str(&l.author),
445 
                l.when_ms
446 
            )
447 
        });
448 
        println!("{}", oxy_core::repo::json_array(items));
449 
        return Ok(0);
450 
    }
75167672 Andy McCall 451 
    let width = lines
452 
        .iter()
453 
        .map(|l| l.author.chars().count())
454 
        .max()
455 
        .unwrap_or(0)
456 
        .min(20);
957fee30 Andy McCall ↶ 457 
    let digits = lines.len().to_string().len();
fddf64ba Andy McCall ↶ 458 
    let _t = oxy_core::timing::phase("blame: print");
459 
    // Most lines share their change with many others: each change's id,
460 
    // author and age are formatted once, and the lines go out through one
461 
    // buffered lock on stdout.
462 
    let mut prefix: std::collections::HashMap<oxy_core::hash::ChangeHash, String> =
463 
        std::collections::HashMap::new();
464 
    let bar = ui::dim(ui::glyph("│", "|"));
465 
    let mut out = std::io::BufWriter::with_capacity(1 << 16, std::io::stdout().lock());
957fee30 Andy McCall ↶ 466 
    for l in &lines {
fddf64ba Andy McCall ↶ 467 
        let p = prefix.entry(l.hash).or_insert_with(|| {
468 
            let author: String = l.author.chars().take(20).collect();
469 
            format!(
470 
                "{} {} {}",
471 
                ui::id(l.change_id.short(8)),
472 
                ui::author(format!("{author:<width$}")),
473 
                ui::dim(ui::ago(l.when_ms))
474 
            )
475 
        });
957fee30 Andy McCall ↶ 476 
        let text = String::from_utf8_lossy(&l.text);
fddf64ba Andy McCall ↶ 477 
        if writeln!(
478 
            out,
479 
            "{p} {:>digits$}{bar} {}",
957fee30 Andy McCall ↶ 480 
            l.line,
481 
            text.trim_end_matches('\n')
fddf64ba Andy McCall ↶ 482 
        )
483 
        .is_err()
484 
        {
485 
            // A closed pipe (blame | head): stop quietly.
486 
            return Ok(0);
487 
        }
957fee30 Andy McCall ↶ 488 
    }
fddf64ba Andy McCall ↶ 489 
    let _ = out.flush();
957fee30 Andy McCall ↶ 490 
    Ok(0)
491 
}
492
493 
fn bisect_report(repo: &Repo, step: &oxy_core::repo::BisectStep) -> Result<i32> {
494 
    use oxy_core::repo::BisectStep::*;
495 
    match step {
496 
        NeedMarks { good, bad } => {
75167672 Andy McCall 497 
            println!(
498 
                "{} {} {}",
499 
                ui::note(),
500 
                ui::dim(format!("{good} good, {bad} bad;")),
501 
                ui::dim(if *good == 0 {
502 
                    "mark a known-good change or bookmark: oxy bisect good CHANGE"
503 
                } else {
504 
                    "mark a known-bad change or bookmark: oxy bisect bad CHANGE"
505 
                })
506 
            );
957fee30 Andy McCall ↶ 507 
            Ok(0)
508 
        }
75167672 Andy McCall 509 
        Testing {
510 
            heads,
511 
            remaining,
512 
            steps_left,
513 
        } => {
514 
            println!(
515 
                "{} {} {}",
516 
                ui::done("Testing"),
517 
                ui::dim(format!(
518 
                    "{} in the state under test;",
519 
                    plural(heads.len(), "head")
520 
                )),
521 
                ui::dim(format!(
522 
                    "{remaining} candidates left, about {steps_left} more steps"
523 
                ))
524 
            );
525 
            println!(
526 
                "  {} {}",
527 
                ui::note(),
528 
                ui::dim("run your test, then oxy bisect good | bad | skip")
529 
            );
957fee30 Andy McCall ↶ 530 
            Ok(0)
531 
        }
532 
        Found { culprit } => {
533 
            let c = repo.store().get_change(culprit)?;
75167672 Andy McCall 534 
            println!(
535 
                "{} {} {}  {}",
536 
                ui::done("Found"),
537 
                ui::id(short_id(&c)),
538 
                ui::hash(format!("#{}", culprit.short(12))),
539 
                ui::subject(subject_of(&c.message))
540 
            );
957fee30 Andy McCall ↶ 541 
            println!("  {} {}", ui::note(), ui::dim("the first change whose inclusion makes the state bad; oxy bisect reset to return"));
542 
            Ok(0)
543 
        }
544 
        Inconclusive { candidates } => {
75167672 Andy McCall 545 
            println!(
546 
                "{} {}",
547 
                ui::caution(),
548 
                ui::warn(format!(
549 
                    "every remaining candidate was skipped ({}); oxy bisect reset to return",
550 
                    plural(candidates.len(), "change")
551 
                ))
552 
            );
957fee30 Andy McCall ↶ 553 
            Ok(1)
554 
        }
555 
    }
556 
}
557
558 
pub fn bisect_start() -> Result<i32> {
559 
    let repo = open()?;
560 
    repo.bisect_start()?;
75167672 Andy McCall 561 
    println!(
562 
        "{} bisect; {}",
563 
        ui::done("Started"),
564 
        ui::dim("now: oxy bisect good CHANGE and oxy bisect bad CHANGE")
565 
    );
957fee30 Andy McCall ↶ 566 
    Ok(0)
567 
}
568
569 
pub fn bisect_mark(good: Option<bool>, changes: &[String]) -> Result<i32> {
570 
    let repo = open()?;
571 
    let mut heads = Vec::new();
572 
    for c in changes {
573 
        heads.extend(repo.resolve_heads(c)?);
574 
    }
575 
    let step = repo.bisect_mark(good, &heads)?;
576 
    bisect_report(&repo, &step)
577 
}
578
579 
pub fn bisect_run(command: &[String]) -> Result<i32> {
580 
    let repo = open()?;
581 
    let step = repo.bisect_run(command)?;
582 
    bisect_report(&repo, &step)
583 
}
584
c6aa5bd9 Andy McCall ↶ 585 
pub fn bisect_status(as_json: bool) -> Result<i32> {
957fee30 Andy McCall ↶ 586 
    let repo = open()?;
c6aa5bd9 Andy McCall ↶ 587 
    if as_json {
588 
        use oxy_core::repo::BisectStep::*;
589 
        let v = match repo.bisect_status()? {
590 
            None => "null".to_string(),
75167672 Andy McCall 591 
            Some(NeedMarks { good, bad }) => json::obj([
592 
                ("state", json::s("need-marks")),
593 
                ("good", json::n(good)),
594 
                ("bad", json::n(bad)),
595 
            ]),
596 
            Some(Testing {
597 
                heads,
598 
                remaining,
599 
                steps_left,
600 
            }) => json::obj([
601 
                ("state", json::s("testing")),
602 
                ("heads", json::hashes(&heads)),
603 
                ("remaining", json::n(remaining)),
604 
                ("steps_left", json::n(steps_left)),
605 
            ]),
606 
            Some(Found { culprit }) => json::obj([
607 
                ("state", json::s("found")),
608 
                ("culprit", json::s(&culprit.to_hex())),
609 
            ]),
610 
            Some(Inconclusive { candidates }) => json::obj([
611 
                ("state", json::s("inconclusive")),
612 
                ("candidates", json::hashes(&candidates)),
613 
            ]),
c6aa5bd9 Andy McCall ↶ 614 
        };
615 
        println!("{v}");
616 
        return Ok(0);
617 
    }
957fee30 Andy McCall ↶ 618 
    match repo.bisect_status()? {
619 
        None => {
620 
            println!("{}", ui::dim("No bisect in progress."));
621 
            Ok(0)
622 
        }
623 
        Some(step) => bisect_report(&repo, &step),
624 
    }
625 
}
626
627 
pub fn bisect_reset() -> Result<i32> {
628 
    let repo = open()?;
629 
    repo.bisect_reset()?;
630 
    println!("{} bisect; working copy restored", ui::done("Reset"));
fce44ae9 Andy McCall ↶ 631 
    Ok(0)
632 
}
633
94084087 Andy McCall ↶ 634 
/// The log: one entry per change, newest first, joined by a rail. The
635 
/// default view is the subject and a metadata line; `verbose` adds the full
636 
/// message, dependencies, and the authenticating key.
c6aa5bd9 Andy McCall ↶ 637 
fn signature_json(repo: &Repo, h: &oxy_core::hash::ChangeHash) -> Result<String> {
638 
    Ok(match repo.authenticate_change(h)? {
639 
        SignatureStatus::Unsigned => json::obj([("status", json::s("unsigned"))]),
75167672 Andy McCall 640 
        SignatureStatus::Valid {
641 
            key,
642 
            name,
643 
            email,
644 
            sealed,
645 
            revoked,
646 
        } => json::obj([
c6aa5bd9 Andy McCall ↶ 647 
            ("status", json::s(if sealed { "sealed" } else { "signed" })),
648 
            ("key", json::s(&key.to_hex())),
649 
            ("name", json::s(&name)),
650 
            ("email", json::s(&email)),
651 
            ("revoked", json::b(revoked)),
652 
        ]),
75167672 Andy McCall 653 
        SignatureStatus::Invalid(why) => {
654 
            json::obj([("status", json::s("invalid")), ("reason", json::s(&why))])
655 
        }
c6aa5bd9 Andy McCall ↶ 656 
    })
657 
}
658
659 
fn log_entry_json(repo: &Repo, e: &oxy_core::repo::LogEntry) -> Result<String> {
660 
    let c = &e.change;
661 
    Ok(json::obj([
662 
        ("hash", json::s(&e.hash.to_hex())),
663 
        ("change_id", json::s(&c.change_id.to_hex())),
664 
        ("author", json::s(&author_name(repo, c))),
665 
        ("author_key", json::s(&c.author.to_hex())),
5cde7882 Andy McCall ↶ 666 
        (
667 
            "via",
668 
            match via(
669 
                repo,
670 
                &repo.authenticate_change_known(&e.hash, Some(c))?,
671 
                &c.author,
672 
            ) {
673 
                Some(v) => json::obj([
674 
                    ("name", json::s(&v.name)),
675 
                    ("email", json::s(&v.email)),
676 
                    ("key", json::s(&v.key.to_hex())),
677 
                    ("scope", json::opt(v.scope.as_deref(), json::s)),
678 
                    ("expires_ms", json::opt(v.expires, json::n)),
679 
                    ("revoked", json::b(v.revoked)),
680 
                ]),
681 
                None => "null".to_string(),
682 
            },
683 
        ),
c6aa5bd9 Andy McCall ↶ 684 
        ("when_ms", json::n(c.hlc.wall_ms)),
685 
        ("message", json::s(&c.message)),
686 
        ("kind", json::s(&format!("{:?}", c.kind).to_lowercase())),
687 
        ("deps", json::hashes(&c.deps)),
688 
        ("head", json::b(e.is_head)),
689 
        ("working_copy", json::b(e.is_working_copy)),
75167672 Andy McCall 690 
        (
691 
            "signature",
692 
            if e.is_working_copy {
693 
                "null".into()
694 
            } else {
695 
                signature_json(repo, &e.hash)?
696 
            },
697 
        ),
c6aa5bd9 Andy McCall ↶ 698 
    ]))
699 
}
700
83d61e80 Andy McCall ↶ 701 
/// `START,END:PATH` for `oxy log -L`.
702 
fn parse_line_range(spec: &str) -> Result<(usize, usize, &str)> {
703 
    let bad = || anyhow::anyhow!("-L {spec}: expected START,END:PATH, as 10,24:src/lib.rs");
704 
    let (range, path) = spec.split_once(':').ok_or_else(bad)?;
705 
    let (a, b) = range.split_once(',').ok_or_else(bad)?;
706 
    Ok((
707 
        a.trim().parse().map_err(|_| bad())?,
708 
        b.trim().parse().map_err(|_| bad())?,
709 
        path,
710 
    ))
711 
}
712
713 
pub fn log(
47ce8b8e Andy McCall ↶ 714 
    revset: Option<&str>,
83d61e80 Andy McCall ↶ 715 
    limit: Option<usize>,
716 
    verbose: bool,
717 
    path: Option<&str>,
718 
    lines: Option<&str>,
719 
    as_json: bool,
720 
) -> Result<i32> {
fce44ae9 Andy McCall ↶ 721 
    let repo = open()?;
69816d68 Andy McCall ↶ 722 
    // Whether the working copy is clean and conflicted: from the manifest
723 
    // when it proves the working copy clean, else from a snapshot.
33472ccc Andy McCall ↶ 724 
    // The working copy as last recorded, without looking at the files (as
725 
    // Git's log does not): whether its change holds edits, and whether its
726 
    // base was conflicted. `oxy status` is what checks the disk.
727 
    let conflicted = !repo.is_at_op() && repo.recorded_conflicted()?;
4cce912a Andy McCall ↶ 728 
    let listing = oxy_core::timing::phase("log: entries");
83d61e80 Andy McCall ↶ 729 
    let entries = match (path, lines) {
47ce8b8e Andy McCall ↶ 730 
        _ if revset.is_some() => repo.log_revset(revset.unwrap_or_default())?,
83d61e80 Andy McCall ↶ 731 
        (_, Some(spec)) => {
732 
            let (first, last, p) = parse_line_range(spec)?;
69816d68 Andy McCall ↶ 733 
            let (_, wc) = repo.working_copy()?;
734 
            let base = repo.load_state_history(&wc.deps)?.maximal(&wc.deps);
735 
            repo.line_history(&base, p, first, last)?
83d61e80 Andy McCall ↶ 736 
        }
737 
        (Some(p), None) => repo.log_for_path(p)?,
738 
        (None, None) => repo.log()?,
c6aa5bd9 Andy McCall ↶ 739 
    };
4cce912a Andy McCall ↶ 740 
    drop(listing);
741 
    let _print = oxy_core::timing::phase("log: print");
c6aa5bd9 Andy McCall ↶ 742 
    if as_json {
743 
        let shown = limit.unwrap_or(entries.len()).min(entries.len());
744 
        let mut items = Vec::new();
745 
        for e in entries.iter().take(shown) {
746 
            items.push(log_entry_json(&repo, e)?);
747 
        }
75167672 Andy McCall 748 
        println!(
749 
            "{}",
750 
            json::obj([
751 
                ("bookmark", json::s(&repo.config.bookmark)),
752 
                ("total", json::n(entries.len())),
753 
                ("changes", json::arr(items))
754 
            ])
755 
        );
c6aa5bd9 Andy McCall ↶ 756 
        return Ok(0);
757 
    }
94084087 Andy McCall ↶ 758 
    let total = entries.len();
759 
    let shown = limit.unwrap_or(total).min(total);
2bf22305 Andy McCall ↶ 760 
    // Lay out a little past what is shown, so edges into the cut are drawn.
761 
    let window: Vec<(ChangeHash, Vec<ChangeHash>)> = entries
762 
        .iter()
763 
        .take((shown + MAX_EDGE).min(total))
764 
        .map(|e| (e.hash, e.change.deps.clone()))
765 
        .collect();
766 
    let rows = oxy_core::lanes::graph(&window, MAX_EDGE);
767 
    // Highlight the shortest prefix that names each change: against the
768 
    // whole log, which is what `resolve_change` searches.
769 
    let everything;
47ce8b8e Andy McCall ↶ 770 
    let all = if path.is_some() || lines.is_some() || revset.is_some() {
2bf22305 Andy McCall ↶ 771 
        everything = repo.log()?;
772 
        &everything
773 
    } else {
774 
        &entries
775 
    };
79b5a90f Andy McCall ↶ 776 
    let prefixes = oxy_core::timing::phase("log: id prefixes");
777 
    let id_prefix = id_prefixes(
778 
        all.iter().map(|e| e.change.change_id.0).collect(),
779 
        entries.iter().take(shown).map(|e| e.change.change_id.0),
780 
    );
781 
    drop(prefixes);
2bf22305 Andy McCall ↶ 782 
    let labels = reference_labels(&repo)?;
783 
    for (e, row) in entries.iter().take(shown).zip(&rows) {
fce44ae9 Andy McCall ↶ 784 
        let c = &e.change;
75167672 Andy McCall 785 
        let bullet = ui::log_bullet(
786 
            e.is_working_copy,
787 
            e.is_head,
788 
            e.is_working_copy && conflicted,
789 
        );
2bf22305 Andy McCall ↶ 790 
        let id = c.change_id.to_hex();
79b5a90f Andy McCall ↶ 791 
        let n = id_prefix.get(&c.change_id.0).copied().unwrap_or(8).min(8);
2bf22305 Andy McCall ↶ 792 
        let mut head = vec![format!("{}{}", ui::id(&id[..n]), ui::dim(&id[n..8]))];
793 
        head.push(ui::author(author_name(&repo, c)));
794 
        head.push(ui::dim(ui::ago(c.hlc.wall_ms)));
795 
        if let Some(names) = labels.get(&e.hash) {
796 
            head.push(names.join(" "));
fce44ae9 Andy McCall ↶ 797 
        }
94084087 Andy McCall ↶ 798 
        if c.kind == ChangeKind::Resolution {
2bf22305 Andy McCall ↶ 799 
            head.push(ui::warn("resolution"));
fce44ae9 Andy McCall ↶ 800 
        }
2bf22305 Andy McCall ↶ 801 
        if !e.is_working_copy {
802 
            head.push(ui::hash(format!("#{}", e.hash.short(8))));
5cde7882 Andy McCall ↶ 803 
            let status = repo.authenticate_change_known(&e.hash, Some(c))?;
804 
            if let Some(agent) = via(&repo, &status, &c.author) {
805 
                head.push(ui::dim(format!("via {}", agent.name)));
806 
            }
807 
            head.push(signature_mark_of(&status));
2bf22305 Andy McCall ↶ 808 
        }
809 
        println!("{}{}", node_line(row, &bullet), head.join(" "));
94084087 Andy McCall ↶ 810 
        let subject = if e.is_working_copy && c.message.is_empty() {
33472ccc Andy McCall ↶ 811 
            let edited = repo
812 
                .store()
813 
                .get_change(&e.hash)
814 
                .is_ok_and(|w| !w.tree_ops.is_empty() || !w.edits.is_empty());
815 
            ui::dim(if edited {
2bf22305 Andy McCall ↶ 816 
                "(working copy, uncommitted changes)"
33472ccc Andy McCall ↶ 817 
            } else {
818 
                "(working copy)"
75167672 Andy McCall 819 
            })
2bf22305 Andy McCall ↶ 820 
        } else if c.message.trim().is_empty() {
821 
            ui::dim("(no description)")
94084087 Andy McCall ↶ 822 
        } else {
2bf22305 Andy McCall ↶ 823 
            subject_of(&c.message).to_string()
94084087 Andy McCall ↶ 824 
        };
2bf22305 Andy McCall ↶ 825 
        println!("{}{subject}", below_line(row));
94084087 Andy McCall ↶ 826 
        if verbose {
2bf22305 Andy McCall ↶ 827 
            let rail = continuation(row);
94084087 Andy McCall ↶ 828 
            if !e.is_working_copy {
75167672 Andy McCall 829 
                println!(
2bf22305 Andy McCall ↶ 830 
                    "{rail}{}",
75167672 Andy McCall 831 
                    ui::dim(format!(
832 
                        "{} {}",
833 
                        when(c.hlc.wall_ms),
834 
                        signature_line(&repo, &e.hash)?
835 
                    ))
836 
                );
94084087 Andy McCall ↶ 837 
            }
838 
            if !c.deps.is_empty() {
75167672 Andy McCall 839 
                println!(
2bf22305 Andy McCall ↶ 840 
                    "{rail}{} {}",
75167672 Andy McCall 841 
                    ui::dim(ui::glyph("↳", "->")),
842 
                    ui::dim(deps_of(&c.deps))
843 
                );
94084087 Andy McCall ↶ 844 
            }
75167672 Andy McCall 845 
            let body: Vec<&str> = c
846 
                .message
847 
                .lines()
848 
                .skip(1)
849 
                .skip_while(|l| l.trim().is_empty())
850 
                .collect();
2bf22305 Andy McCall ↶ 851 
            for line in body {
852 
                println!("{rail}  {line}");
94084087 Andy McCall ↶ 853 
            }
fce44ae9 Andy McCall ↶ 854 
        }
855 
    }
94084087 Andy McCall ↶ 856 
    if shown < total {
2bf22305 Andy McCall ↶ 857 
        if let Some(last) = rows.get(shown.saturating_sub(1)) {
858 
            let cut: String = last
859 
                .below
860 
                .iter()
861 
                .map(|c| match c {
862 
                    Cell::Blank | Cell::Elided | Cell::JoinRight => "  ",
863 
                    _ => "~ ",
864 
                })
865 
                .collect();
866 
            if cut.trim().is_empty() {
867 
                println!("{}", ui::dim("~"));
868 
            } else {
869 
                println!("{}", ui::dim(cut.trim_end()));
870 
            }
871 
        }
75167672 Andy McCall 872 
        println!(
873 
            "{}",
874 
            ui::dim(format!(
875 
                "{} {} more; pass -n to see them",
876 
                ui::glyph("…", "..."),
877 
                total - shown
878 
            ))
879 
        );
94084087 Andy McCall ↶ 880 
    }
fce44ae9 Andy McCall ↶ 881 
    Ok(0)
2bf22305 Andy McCall ↶ 882 
}
883
884 
/// Rows a drawn edge may span in `oxy log`; a longer one is elided (`~`).
885 
const MAX_EDGE: usize = 12;
886
887 
use oxy_core::hash::ChangeHash;
888 
use oxy_core::lanes::{Cell, GraphRow};
889
890 
/// A graph cell, two columns wide.
891 
fn cell(c: Cell) -> &'static str {
892 
    match c {
893 
        Cell::Blank => "  ",
894 
        Cell::Line => ui::glyph("│ ", "| "),
895 
        Cell::Elided => "~ ",
896 
        Cell::JoinLeft => ui::glyph("├─", "|-"),
897 
        Cell::JoinPass => ui::glyph("──", "--"),
898 
        Cell::JoinCross => ui::glyph("┼─", "+-"),
899 
        Cell::JoinRight => ui::glyph("╯ ", "' "),
900 
    }
901 
}
902
903 
/// The graph part of a change's own line, its bullet in its column.
904 
fn node_line(row: &GraphRow, bullet: &str) -> String {
905 
    let width = row
906 
        .passing
907 
        .iter()
908 
        .copied()
909 
        .max()
910 
        .unwrap_or(0)
911 
        .max(row.column)
912 
        + 1;
913 
    let mut out = String::new();
914 
    for c in 0..width {
915 
        if c == row.column {
916 
            out.push_str(bullet);
917 
            out.push(' ');
918 
        } else if row.passing.contains(&c) {
919 
            out.push_str(&ui::dim(cell(Cell::Line)));
920 
        } else {
921 
            out.push_str("  ");
922 
        }
923 
    }
924 
    out.push(' ');
925 
    out
926 
}
927
928 
/// The graph part of the line under a change: lanes carrying on, a join,
929 
/// or `~` for an elided edge.
930 
fn below_line(row: &GraphRow) -> String {
931 
    let g: String = row.below.iter().map(|c| cell(*c)).collect();
932 
    format!("{} ", ui::dim(g))
933 
}
934
935 
/// The graph part of any further line of a change (`-v`).
936 
fn continuation(row: &GraphRow) -> String {
937 
    let g: String = row
938 
        .below
939 
        .iter()
940 
        .map(|c| match c {
941 
            Cell::Line | Cell::JoinLeft | Cell::JoinCross => cell(Cell::Line),
942 
            _ => "  ",
943 
        })
944 
        .collect();
945 
    format!("{} ", ui::dim(g))
946 
}
947
948 
/// For each hex ID, the length of its shortest prefix no other ID shares.
79b5a90f Andy McCall ↶ 949 
/// The shortest prefix, in hex digits, that names each of `wanted` among
950 
/// `all`: worked out for the few shown rather than for the whole history.
951 
fn id_prefixes(
952 
    mut all: Vec<[u8; 16]>,
953 
    wanted: impl Iterator<Item = [u8; 16]>,
954 
) -> std::collections::HashMap<[u8; 16], usize> {
955 
    all.sort_unstable();
956 
    all.dedup();
957 
    // Hex digits two ids share at the start.
958 
    let common = |a: &[u8; 16], b: &[u8; 16]| {
959 
        let bytes = a.iter().zip(b).take_while(|(x, y)| x == y).count();
960 
        match (a.get(bytes), b.get(bytes)) {
961 
            (Some(x), Some(y)) if x >> 4 == y >> 4 => 2 * bytes + 1,
962 
            _ => 2 * bytes,
963 
        }
964 
    };
965 
    let mut out = std::collections::HashMap::new();
966 
    for id in wanted {
967 
        let Ok(i) = all.binary_search(&id) else {
968 
            continue;
969 
        };
970 
        let before = i.checked_sub(1).map_or(0, |j| common(&all[j], &id));
971 
        let after = all.get(i + 1).map_or(0, |n| common(&id, n));
972 
        out.insert(id, before.max(after) + 1);
973 
    }
974 
    out
975 
}
976
2bf22305 Andy McCall ↶ 977 
fn unique_prefixes(ids: impl Iterator<Item = String>) -> std::collections::HashMap<String, usize> {
978 
    let mut v: Vec<String> = ids.collect();
979 
    v.sort();
980 
    v.dedup();
981 
    let common = |a: &str, b: &str| a.bytes().zip(b.bytes()).take_while(|(x, y)| x == y).count();
982 
    let mut out = std::collections::HashMap::with_capacity(v.len());
983 
    for i in 0..v.len() {
984 
        let before = if i > 0 { common(&v[i - 1], &v[i]) } else { 0 };
985 
        let after = if i + 1 < v.len() {
986 
            common(&v[i], &v[i + 1])
987 
        } else {
988 
            0
989 
        };
990 
        out.insert(v[i].clone(), before.max(after) + 1);
991 
    }
992 
    out
993 
}
994
995 
/// Bookmark, remote bookmark and tag names to show beside the changes they
996 
/// point at. A name is shown on each head of its state; one with more than
997 
/// three heads names too much of the log to help, so it is left out (oxy
998 
/// bookmark list shows it). A remote bookmark at the same state as the
999 
/// local one of that name is not repeated.
1000 
fn reference_labels(repo: &Repo) -> Result<std::collections::HashMap<ChangeHash, Vec<String>>> {
1001 
    const MAX_HEADS: usize = 3;
1002 
    let view = repo.view()?;
1003 
    let mut out: std::collections::HashMap<ChangeHash, Vec<String>> = Default::default();
1004 
    let mut add = |heads: Vec<ChangeHash>, label: String| {
1005 
        if heads.len() <= MAX_HEADS {
1006 
            for h in heads {
1007 
                out.entry(h).or_default().push(label.clone());
1008 
            }
1009 
        }
1010 
    };
1011 
    for (name, st) in &view.bookmarks {
1012 
        add(repo.store().get_state(st)?.heads, ui::bookmark(name));
1013 
    }
1014 
    for (remote, bookmarks) in &view.remotes {
1015 
        for (name, st) in bookmarks {
1016 
            if view.bookmarks.get(name) == Some(st) {
1017 
                continue;
1018 
            }
1019 
            add(
1020 
                repo.store().get_state(st)?.heads,
1021 
                ui::dim(format!("{remote}/{name}")),
1022 
            );
1023 
        }
1024 
    }
1025 
    for t in repo.tags()? {
1026 
        add(t.heads.clone(), ui::warn(&t.name));
1027 
    }
1028 
    Ok(out)
fce44ae9 Andy McCall ↶ 1029 
}
1030
c6aa5bd9 Andy McCall ↶ 1031 
pub fn diff(change: Option<&str>, as_json: bool) -> Result<i32> {
1032 
    let repo = open()?;
1033 
    let hash = change.map(|c| repo.resolve_change(c)).transpose()?;
1034 
    if as_json {
1035 
        let files = repo.diff_files(hash.as_ref())?;
1036 
        let items = files.iter().map(|f| {
1037 
            json::obj([
1038 
                ("path", json::s(&f.path)),
1039 
                ("kind", json::s(&f.kind)),
1040 
                ("from", json::opt(f.from.as_deref(), json::s)),
1041 
                (
1042 
                    "hunks",
1043 
                    json::arr(f.hunks.iter().map(|h| {
1044 
                        json::obj([
1045 
                            ("base_line", json::n(h.base_line)),
75167672 Andy McCall 1046 
                            (
1047 
                                "added",
1048 
                                json::arr(
1049 
                                    h.added.iter().map(|l| json::s(&String::from_utf8_lossy(l))),
1050 
                                ),
1051 
                            ),
1052 
                            (
1053 
                                "removed",
1054 
                                json::arr(h.removed.iter().map(|(n, l)| {
1055 
                                    json::obj([
1056 
                                        ("line", json::n(*n)),
1057 
                                        ("text", json::s(&String::from_utf8_lossy(l))),
1058 
                                    ])
1059 
                                })),
1060 
                            ),
c6aa5bd9 Andy McCall ↶ 1061 
                        ])
1062 
                    })),
1063 
                ),
1064 
            ])
1065 
        });
75167672 Andy McCall 1066 
        println!(
1067 
            "{}",
1068 
            json::obj([
1069 
                ("change", json::opt(hash, |h| json::s(&h.to_hex()))),
1070 
                ("files", json::arr(items))
1071 
            ])
1072 
        );
c6aa5bd9 Andy McCall ↶ 1073 
        return Ok(0);
1074 
    }
1075 
    match hash {
1076 
        Some(h) => {
1077 
            let c = repo.store().get_change(&h)?;
8ab265dc Andy McCall ↶ 1078 
            let (base, snapshot) = repo.change_base(&c)?;
c6aa5bd9 Andy McCall ↶ 1079 
            print!("{}", render_change(&c, &base, &snapshot));
1080 
        }
1081 
        None => {
74b4a3c6 Andy McCall ↶ 1082 
            // Nothing changed: nothing to show, and no base to load.
1083 
            let Some((wc, base, snapshot)) = repo.working_copy_with_base_unless_unchanged()? else {
1084 
                return Ok(0);
1085 
            };
10b4fd43 Andy McCall ↶ 1086 
            let text = {
1087 
                let _t = oxy_core::timing::phase("diff: render the change");
1088 
                render_change(&wc, &base, &snapshot)
1089 
            };
1090 
            print!("{text}");
1091 
            // The process ends here: freeing the base's tree and graphs
1092 
            // one by one would only cost time (about 27 ms on Linux).
1093 
            std::mem::forget((wc, base, snapshot));
c6aa5bd9 Andy McCall ↶ 1094 
        }
1095 
    }
1096 
    Ok(0)
1097 
}
1098
1099 
pub fn cat(path: &str, change: Option<&str>) -> Result<i32> {
1100 
    let repo = open()?;
1101 
    let heads = change.map(|c| repo.resolve_heads(c)).transpose()?;
b0a0c9af Andy McCall ↶ 1102 
    let bytes = match repo.file_at(path, heads.as_deref()) {
1103 
        Ok(b) => b,
1104 
        // -r CHANGE reads that change's dependency closure, not the
1105 
        // bookmark it is on: say so when the bookmark has the file
1106 
        // (oxygen#76).
1107 
        Err(e) => match change {
1108 
            Some(c)
1109 
                if !repo.view()?.bookmarks.contains_key(c)
1110 
                    && repo.tag_heads(c)?.is_none()
1111 
                    && repo.file_at(path, None).is_ok() =>
1112 
            {
1113 
                anyhow::bail!(
1114 
                    "{path} is not in {c}'s dependency closure (the change and what it \
1115 
                     depends on); it is on the bookmark: try -r {}, or --at-op OP for the \
1116 
                     state at an operation",
1117 
                    repo.config.bookmark
1118 
                )
1119 
            }
1120 
            _ => return Err(e.into()),
1121 
        },
1122 
    };
c6aa5bd9 Andy McCall ↶ 1123 
    use std::io::Write as _;
1124 
    std::io::stdout().write_all(&bytes)?;
1125 
    Ok(0)
1126 
}
1127
1128 
pub fn root(as_json: bool) -> Result<i32> {
1129 
    let Ok(repo) = Repo::open(&std::env::current_dir()?) else {
1130 
        if as_json {
1131 
            println!("null");
1132 
        }
1133 
        return Ok(1);
1134 
    };
1135 
    if as_json {
75167672 Andy McCall 1136 
        println!(
1137 
            "{}",
1138 
            json::obj([
1139 
                ("root", json::s(&repo.root().to_string_lossy())),
1140 
                ("workspace", json::s(&repo.workspace().to_hex())),
1141 
                ("bookmark", json::s(&repo.config.bookmark))
1142 
            ])
1143 
        );
c6aa5bd9 Andy McCall ↶ 1144 
    } else {
1145 
        println!("{}", repo.root().display());
1146 
    }
1147 
    Ok(0)
1148 
}
1149
1150 
pub fn version(as_json: bool) -> Result<i32> {
1151 
    if as_json {
75167672 Andy McCall 1152 
        println!(
1153 
            "{}",
1154 
            json::obj([
1155 
                ("version", json::s(env!("CARGO_PKG_VERSION"))),
e293c90d Andy McCall ↶ 1156 
                // What was built: a release's or install's `oxy describe`,
1157 
                // a Flow build's heads, or "local build".
1158 
                ("build", json::s(env!("OXY_BUILD_ID"))),
75167672 Andy McCall 1159 
                ("protocol", json::n(oxy_core::protocol::PROTOCOL_VERSION)),
1160 
                ("format", json::n(2))
1161 
            ])
1162 
        );
c6aa5bd9 Andy McCall ↶ 1163 
    } else {
75167672 Andy McCall 1164 
        println!(
1165 
            "oxy {} (repository format 2, protocol {})",
e293c90d Andy McCall ↶ 1166 
            env!("OXY_VERSION_LONG"),
75167672 Andy McCall 1167 
            oxy_core::protocol::PROTOCOL_VERSION
1168 
        );
c6aa5bd9 Andy McCall ↶ 1169 
    }
1170 
    Ok(0)
1171 
}
1172
1173 
pub fn discard(paths: &[String], hunks: &[usize]) -> Result<i32> {
1174 
    let repo = open()?;
1175 
    if paths.is_empty() && hunks.is_empty() {
1176 
        anyhow::bail!("name paths to restore, or --hunks to undo chosen hunks");
1177 
    }
1178 
    let mut n = 0;
1179 
    if !hunks.is_empty() {
1180 
        n += repo.discard_hunks(hunks)?;
1181 
    }
1182 
    if !paths.is_empty() {
1183 
        n += repo.discard(paths)?;
1184 
    }
75167672 Andy McCall 1185 
    println!(
1186 
        "{} {} restored to the working copy's base",
1187 
        ui::done("Discarded"),
1188 
        plural(n, "path")
1189 
    );
c6aa5bd9 Andy McCall ↶ 1190 
    Ok(0)
1191 
}
1192
1193 
pub fn hunks(as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1194 
    let repo = open()?;
c6aa5bd9 Andy McCall ↶ 1195 
    let (_, hunks) = repo.hunks()?;
1196 
    if as_json {
75167672 Andy McCall 1197 
        println!(
1198 
            "{}",
1199 
            json::arr(hunks.iter().map(|h| json::obj([
1200 
                ("index", json::n(h.index)),
1201 
                ("path", json::s(&h.path)),
1202 
                ("text", json::s(&h.text))
1203 
            ])))
1204 
        );
c6aa5bd9 Andy McCall ↶ 1205 
        return Ok(0);
1206 
    }
1207 
    if hunks.is_empty() {
75167672 Andy McCall 1208 
        println!(
1209 
            "{}",
1210 
            ui::dim("No hunks: the working copy matches its base.")
1211 
        );
c6aa5bd9 Andy McCall ↶ 1212 
    }
1213 
    for h in &hunks {
75167672 Andy McCall 1214 
        println!(
1215 
            "{} {}",
1216 
            ui::section(format!("hunk {}", h.index)),
1217 
            ui::path(&h.path)
1218 
        );
c6aa5bd9 Andy McCall ↶ 1219 
        for line in h.text.lines() {
75167672 Andy McCall 1220 
            let styled = if line.starts_with('+') {
1221 
                ui::ok(line)
1222 
            } else if line.starts_with('-') {
1223 
                ui::err(line)
1224 
            } else {
1225 
                ui::dim(line)
1226 
            };
c6aa5bd9 Andy McCall ↶ 1227 
            println!("  {styled}");
1228 
        }
1229 
    }
fce44ae9 Andy McCall ↶ 1230 
    Ok(0)
1231 
}
1232
2c9ddac3 Andy McCall ↶ 1233 
pub fn show(change: Option<&str>, revset: Option<&str>, as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1234 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 1235 
    repo.snapshot_status("oxy show")?;
2c9ddac3 Andy McCall ↶ 1236 
    let Some(r) = revset else {
1237 
        let h = repo.resolve_change(change.unwrap_or("@"))?;
1238 
        return show_one(&repo, h, as_json, false);
1239 
    };
1240 
    // Several changes: a JSON array, or the changes one after another.
1241 
    let hashes = repo.revset(r)?.hashes;
1242 
    if as_json {
1243 
        print!("[");
1244 
        for (i, h) in hashes.iter().enumerate() {
1245 
            if i > 0 {
1246 
                print!(",");
1247 
            }
1248 
            show_one(&repo, *h, true, true)?;
1249 
        }
1250 
        println!("]");
1251 
        return Ok(0);
1252 
    }
1253 
    if hashes.is_empty() {
1254 
        println!("{}", ui::dim(format!("No change matches {r:?}.")));
1255 
        return Ok(0);
1256 
    }
1257 
    for (i, h) in hashes.iter().enumerate() {
1258 
        if i > 0 {
1259 
            println!();
1260 
        }
1261 
        show_one(&repo, *h, false, false)?;
1262 
    }
1263 
    Ok(0)
1264 
}
1265
1266 
/// One change, as `oxy show` prints it; `inline` JSON goes without its
1267 
/// newline, for an array.
1268 
fn show_one(repo: &Repo, h: ChangeHash, as_json: bool, inline: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1269 
    let c = repo.store().get_change(&h)?;
c6aa5bd9 Andy McCall ↶ 1270 
    if as_json {
1271 
        let files = repo.diff_files(Some(&h))?;
1272 
        let heads = repo.bookmark_heads()?;
75167672 Andy McCall 1273 
        let entry = oxy_core::repo::LogEntry {
1274 
            hash: h,
1275 
            change: oxy_core::state::ChangeMeta::of(&c),
1276 
            is_working_copy: c.kind == oxy_core::objects::ChangeKind::WorkingCopy,
1277 
            is_head: heads.contains(&h),
1278 
        };
2c9ddac3 Andy McCall ↶ 1279 
        let mut body = log_entry_json(repo, &entry)?;
c6aa5bd9 Andy McCall ↶ 1280 
        body.pop();
75167672 Andy McCall 1281 
        body.push_str(&format!(
1282 
            ",{}:{}}}",
1283 
            json::s("files"),
1284 
            json::arr(files.iter().map(|f| json::obj([
1285 
                ("path", json::s(&f.path)),
1286 
                ("kind", json::s(&f.kind)),
1287 
                ("from", json::opt(f.from.as_deref(), json::s))
1288 
            ])))
1289 
        ));
2c9ddac3 Andy McCall ↶ 1290 
        if inline {
1291 
            print!("{body}");
1292 
        } else {
1293 
            println!("{body}");
1294 
        }
c6aa5bd9 Andy McCall ↶ 1295 
        return Ok(0);
1296 
    }
75167672 Andy McCall 1297 
    println!(
1298 
        "{} {} {}",
1299 
        ui::section("change"),
1300 
        ui::id(short_id(&c)),
1301 
        ui::hash(format!("#{h}"))
1302 
    );
94084087 Andy McCall ↶ 1303 
    println!("{}", ui::kv("kind", format!("{:?}", c.kind).to_lowercase()));
b35df36b Andy McCall ↶ 1304 
    // Fetched but not pulled (oxygen#56): say where it is.
1305 
    if let Some(at) = repo.remote_only_location(&h)? {
1306 
        println!(
1307 
            "{}",
1308 
            ui::kv(
1309 
                "only in",
1310 
                ui::warn(format!(
1311 
                    "{at}: fetched, not yet in a local bookmark (oxy pull)"
1312 
                ))
1313 
            )
1314 
        );
1315 
    }
5cde7882 Andy McCall ↶ 1316 
    let meta = oxy_core::state::ChangeMeta::of(&c);
1317 
    let status = repo.authenticate_change_known(&h, Some(&meta))?;
1318 
    println!("{}", ui::kv("author", ui::author(author_name(repo, &meta))));
1319 
    if let Some(agent) = via(repo, &status, &meta.author) {
1320 
        println!("{}", ui::kv("via", agent.line()));
1321 
    }
75167672 Andy McCall 1322 
    println!(
1323 
        "{}",
1324 
        ui::kv(
1325 
            "date",
1326 
            format!(
1327 
                "{} {}",
1328 
                when(c.hlc.wall_ms),
1329 
                ui::dim(format!("({})", ui::ago(c.hlc.wall_ms)))
1330 
            )
1331 
        )
1332 
    );
94084087 Andy McCall ↶ 1333 
    println!("{}", ui::kv("deps", ui::dim(deps_line(&c))));
2c9ddac3 Andy McCall ↶ 1334 
    println!("{}", ui::kv("sig", signature_line(repo, &h)?));
94084087 Andy McCall ↶ 1335 
    println!();
75167672 Andy McCall 1336 
    for line in (if c.message.is_empty() {
1337 
        "(no description)"
1338 
    } else {
1339 
        &c.message
1340 
    })
1341 
    .lines()
1342 
    {
94084087 Andy McCall ↶ 1343 
        println!("    {line}");
1344 
    }
1345 
    println!();
fce44ae9 Andy McCall ↶ 1346 
    print!("{}", repo.describe_change(&h)?);
1347 
    Ok(0)
1348 
}
1349
1c2bd9ab Andy McCall ↶ 1350 
pub fn checkout(changes: &[String], discard: bool, carry: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1351 
    let repo = open()?;
a46f3e4f Andy McCall ↶ 1352 
    // `oxy checkout BOOKMARK` is being on that bookmark, as `git checkout
1353 
    // BRANCH` is: checking its files out under another bookmark's name
1354 
    // made the next commit move the wrong bookmark (oxygen#60).
1355 
    if let [name] = changes {
1356 
        if *name != repo.config.bookmark && names_bookmark(&repo, name)? {
1357 
            drop(repo);
1358 
            return bookmark_switch(name, discard, carry);
1359 
        }
1360 
    }
fce44ae9 Andy McCall ↶ 1361 
    let heads = if changes.is_empty() {
1362 
        repo.bookmark_heads()?
1363 
    } else {
132b884b Andy McCall ↶ 1364 
        let mut heads = Vec::new();
1365 
        for c in changes {
1366 
            heads.extend(repo.resolve_heads(c)?);
1367 
        }
1368 
        heads
fce44ae9 Andy McCall ↶ 1369 
    };
75167672 Andy McCall 1370 
    let spec = if changes.is_empty() {
1371 
        repo.config.bookmark.clone()
1372 
    } else {
1373 
        changes.join(" ")
1374 
    };
135212de Andy McCall ↶ 1375 
    let sp = ui::spinner(&format!("Checking out {spec}…"));
1c2bd9ab Andy McCall ↶ 1376 
    let command = format!("oxy checkout {spec}");
1377 
    let (r, carried) = if carry {
1378 
        repo.checkout_carry(&heads, &spec, &command)?
1379 
    } else {
1380 
        (repo.checkout(&heads, discard, &command)?, vec![])
1381 
    };
75167672 Andy McCall 1382 
    sp.done(&format!(
1c2bd9ab Andy McCall ↶ 1383 
        "{} on {}: {} written, {} removed{}",
75167672 Andy McCall 1384 
        ui::done("Working copy"),
1385 
        ui::bookmark(&spec),
1386 
        plural(r.written, "file"),
1c2bd9ab Andy McCall ↶ 1387 
        r.removed,
1388 
        if carried.is_empty() {
1389 
            String::new()
1390 
        } else {
1391 
            format!("; carried {}", plural(carried.len(), "changed path"))
1392 
        }
75167672 Andy McCall 1393 
    ));
9b723f69 Andy McCall ↶ 1394 
    print_removed(&r);
4dee277c Andy McCall ↶ 1395 
    for n in &r.notes {
1396 
        println!("  {} {n}", ui::note());
1397 
    }
fce44ae9 Andy McCall ↶ 1398 
    if r.conflicted {
75167672 Andy McCall 1399 
        println!(
1400 
            "  {} {}",
1401 
            ui::caution(),
1402 
            ui::warn("this state has conflicts; see oxy status")
1403 
        );
fce44ae9 Andy McCall ↶ 1404 
    }
98a1620a Andy McCall ↶ 1405 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1406 
    Ok(0)
1407 
}
1408
c6aa5bd9 Andy McCall ↶ 1409 
pub fn resolve(as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1410 
    let repo = open()?;
1411 
    let snap = repo.snapshot("oxy resolve")?;
c6aa5bd9 Andy McCall ↶ 1412 
    if as_json {
1413 
        println!("{}", repo.status_json(&snap)?);
75167672 Andy McCall 1414 
        return Ok(if snap.base_snapshot.is_conflicted() {
1415 
            2
1416 
        } else {
1417 
            0
1418 
        });
c6aa5bd9 Andy McCall ↶ 1419 
    }
fce44ae9 Andy McCall ↶ 1420 
    if !snap.base_snapshot.is_conflicted() {
1421 
        println!("The working copy's base has no conflicts.");
1422 
        return Ok(0);
1423 
    }
1424 
    let mut remaining = 0;
1425 
    for (p, f) in &snap.base_snapshot.files {
1426 
        if !f.is_conflicted() {
1427 
            continue;
1428 
        }
75167672 Andy McCall 1429 
        match snap
1430 
            .statuses
1431 
            .iter()
1432 
            .find(|s| s.path == *p)
1433 
            .map(|s| s.status)
1434 
        {
fce44ae9 Andy McCall ↶ 1435 
            Some(ChangeStatus::Resolved) => println!("resolved   {p}"),
1436 
            Some(ChangeStatus::ConflictEdited) => {
1437 
                remaining += 1;
1438 
                println!("markers    {p}");
1439 
            }
1440 
            _ => {
1441 
                remaining += 1;
1442 
                println!("unresolved {p}");
1443 
            }
1444 
        }
1445 
    }
1446 
    for c in &snap.base_snapshot.tree.conflicts {
1447 
        remaining += 1;
1448 
        println!("tree       {c:?}");
1449 
    }
1450 
    if remaining == 0 {
1451 
        println!("All conflicts are resolved; `oxy commit` will record the resolution.");
1452 
        Ok(0)
1453 
    } else {
1454 
        Ok(2)
1455 
    }
1456 
}
1457
1458 
pub fn undo() -> Result<i32> {
1459 
    let repo = open()?;
530a0fc6 Andy McCall ↶ 1460 
    let u = repo.undo()?;
1461 
    println!("{} {}", ui::done("Undone:"), u.command);
1462 
    for c in &u.changes {
1463 
        println!("  {} {}", ui::note(), change_words(&repo, c));
1464 
    }
1465 
    if u.others_kept > 0 {
1466 
        let s = if u.others_kept == 1 { "" } else { "s" };
1467 
        println!(
1468 
            "  {} {}",
1469 
            ui::note(),
1470 
            ui::dim(format!(
1471 
                "{} newer operation{s} from other workspaces left as they are",
1472 
                u.others_kept
1473 
            ))
1474 
        );
1475 
    }
1476 
    for (bookmark, remote) in &u.pushed {
1477 
        println!(
1478 
            "  {} {}",
1479 
            ui::caution(),
1480 
            ui::warn(format!(
1481 
                "{remote}/{bookmark} already has what this undid: undone here only; the next push of {bookmark} needs --force to take it back there"
1482 
            ))
1483 
        );
1484 
    }
98a1620a Andy McCall ↶ 1485 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1486 
    Ok(0)
1487 
}
1488
98a1620a Andy McCall ↶ 1489 
pub fn op_log(limit: Option<usize>, as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1490 
    let repo = open()?;
98a1620a Andy McCall ↶ 1491 
    let ops = repo.op_log()?;
1492 
    // What each operation changed, against the one before it.
1493 
    let changes_of = |i: usize| -> Result<Vec<oxy_core::repo::ViewChange>> {
1494 
        match ops.get(i + 1) {
1495 
            Some((_, before)) => Ok(repo.view_changes(&before.view, &ops[i].1.view)?),
1496 
            None => Ok(vec![]),
1497 
        }
1498 
    };
c6aa5bd9 Andy McCall ↶ 1499 
    if as_json {
98a1620a Andy McCall ↶ 1500 
        let mut items = Vec::new();
1501 
        for (i, (r, op)) in ops.iter().enumerate().take(limit.unwrap_or(usize::MAX)) {
1502 
            let summary: Vec<String> = changes_of(i)?
1503 
                .iter()
1504 
                .map(|c| change_words(&repo, c))
1505 
                .collect();
1506 
            items.push(json::obj([
1507 
                ("id", json::s(&r.to_hex())),
1508 
                ("when_ms", json::n(op.hlc.wall_ms)),
1509 
                ("command", json::s(&op.command)),
1510 
                ("snapshot", json::b(op.is_snapshot())),
1511 
                ("current", json::b(i == 0)),
1512 
                ("changes", json::arr(summary.iter().map(|x| json::s(x)))),
1513 
            ]));
1514 
        }
1515 
        println!("{}", json::arr(items));
c6aa5bd9 Andy McCall ↶ 1516 
        return Ok(0);
1517 
    }
98a1620a Andy McCall ↶ 1518 
    let id_prefix = unique_prefixes(ops.iter().map(|(r, _)| r.to_hex()));
1519 
    let id = |r: &oxy_core::hash::ObjectRef| {
1520 
        let hex = r.to_hex();
1521 
        let n = id_prefix.get(&hex).copied().unwrap_or(12).min(12);
1522 
        format!("{}{}", ui::id(&hex[..n]), ui::dim(&hex[n..12]))
1523 
    };
1524 
    let rail = ui::dim(ui::glyph("│", "|"));
1525 
    let (mut i, mut shown) = (0, 0);
1526 
    while i < ops.len() && shown < limit.unwrap_or(usize::MAX) {
1527 
        let (r, op) = &ops[i];
75167672 Andy McCall 1528 
        let bullet = if i == 0 {
98a1620a Andy McCall ↶ 1529 
            ui::ok(ui::glyph("@", "@"))
75167672 Andy McCall 1530 
        } else {
1531 
            ui::dim(ui::glyph("○", "o"))
1532 
        };
98a1620a Andy McCall ↶ 1533 
        // A run of snapshots folds into one entry.
1534 
        let mut run = 1;
1535 
        while op.is_snapshot() && i + run < ops.len() && ops[i + run].1.is_snapshot() {
1536 
            run += 1;
1537 
        }
1538 
        let when = ui::dim(ui::ago(op.hlc.wall_ms));
1539 
        if op.is_snapshot() {
1540 
            let span = if run > 1 {
1541 
                format!("{} {}", ui::dim("…"), id(&ops[i + run - 1].0))
1542 
            } else {
1543 
                String::new()
1544 
            };
1545 
            println!(
1546 
                "{bullet}  {}{} {when}",
1547 
                id(r),
1548 
                if span.is_empty() {
1549 
                    String::new()
1550 
                } else {
1551 
                    format!(" {span}")
1552 
                }
1553 
            );
1554 
            println!(
1555 
                "{rail}  {}",
1556 
                ui::dim(if run == 1 {
1557 
                    "working-copy snapshot".to_string()
1558 
                } else {
1559 
                    format!("{run} working-copy snapshots")
1560 
                })
1561 
            );
1562 
        } else {
1563 
            println!("{bullet}  {} {when}", id(r));
1564 
            let words: Vec<String> = changes_of(i)?
1565 
                .iter()
1566 
                .map(|c| change_words(&repo, c))
1567 
                .collect();
1568 
            let summary = if words.is_empty() {
1569 
                if i + 1 == ops.len() {
1570 
                    "created the repository".to_string()
1571 
                } else {
1572 
                    "no bookmark or working-copy change".to_string()
1573 
                }
1574 
            } else {
1575 
                words.join("; ")
1576 
            };
1577 
            println!(
1578 
                "{rail}  {}",
1579 
                if i == 0 {
1580 
                    ui::subject(&summary)
1581 
                } else {
1582 
                    summary
1583 
                }
1584 
            );
1585 
            let cmd = op.command.lines().next().unwrap_or("");
1586 
            let cmd: String = cmd.chars().take(100).collect();
1587 
            println!("{rail}  {}", ui::dim(cmd));
1588 
        }
1589 
        i += run;
1590 
        shown += 1;
1591 
    }
1592 
    if i < ops.len() {
75167672 Andy McCall 1593 
        println!(
98a1620a Andy McCall ↶ 1594 
            "{}",
1595 
            ui::dim(format!(
1596 
                "{} {} older; pass -n to see more",
1597 
                ui::glyph("…", "..."),
1598 
                plural(ops.len() - i, "operation")
1599 
            ))
1600 
        );
1601 
    }
1602 
    Ok(0)
1603 
}
1604
1605 
/// One change an operation made, in words.
1606 
fn change_words(repo: &Repo, c: &oxy_core::repo::ViewChange) -> String {
1607 
    use oxy_core::repo::ViewChange::*;
1608 
    match c {
1609 
        BookmarkCreated { name, heads } => {
1610 
            format!("created bookmark {name} ({})", plural(*heads, "head"))
1611 
        }
1612 
        BookmarkDeleted { name } => format!("deleted bookmark {name}"),
1613 
        BookmarkMoved { name, from, to } if from == to => format!("moved {name}"),
1614 
        BookmarkMoved { name, from, to } => format!(
1615 
            "{name}: {from} {} {}",
1616 
            ui::glyph("→", "->"),
1617 
            plural(*to, "head")
1618 
        ),
1619 
        RemoteMoved { remote, name } => format!("{remote}/{name} updated"),
1620 
        TagCreated { name } => format!("tagged {name}"),
1621 
        TagDeleted { name } => format!("removed tag {name}"),
1622 
        Policy => "trust policy changed".to_string(),
1623 
        WorkingCopy { change } => match repo.store().get_change_meta(change) {
1624 
            Ok(m) => format!("working copy now {}", m.change_id.short(8)),
1625 
            Err(_) => "working copy moved".to_string(),
1626 
        },
1627 
    }
1628 
}
1629
1630 
pub fn op_restore(op: &str, discard: bool) -> Result<i32> {
1631 
    let repo = open()?;
1632 
    let sp = ui::spinner(&format!("Restoring to operation {op}…"));
1633 
    let r = repo.op_restore(op, discard)?;
1634 
    sp.done(&format!(
1635 
        "{} to operation {} {}",
1636 
        ui::done("Restored"),
1637 
        ui::hash(r.op.short(12)),
1638 
        ui::dim(r.command.lines().next().unwrap_or(""))
1639 
    ));
1640 
    println!(
1641 
        "  {} {}",
1642 
        ui::note(),
1643 
        ui::dim(format!(
1644 
            "{} written, {} removed; oxy undo goes back again",
1645 
            plural(r.checkout.written, "file"),
1646 
            r.checkout.removed
1647 
        ))
1648 
    );
1649 
    where_now(&repo);
1650 
    Ok(0)
1651 
}
1652
1653 
pub fn op_revert(op: &str) -> Result<i32> {
1654 
    let repo = open()?;
1655 
    let r = repo.op_revert(op)?;
1656 
    let view = repo.view()?;
1657 
    let names: Vec<String> = r
1658 
        .reverted
1659 
        .iter()
1660 
        .map(|n| {
1661 
            if view.bookmarks.contains_key(n) {
1662 
                ui::bookmark(n)
75167672 Andy McCall 1663 
            } else {
98a1620a Andy McCall ↶ 1664 
                format!("{} (removed)", ui::bookmark(n))
75167672 Andy McCall 1665 
            }
98a1620a Andy McCall ↶ 1666 
        })
1667 
        .collect();
1668 
    println!(
1669 
        "{} operation {} {}",
1670 
        ui::done("Reverted"),
1671 
        ui::hash(r.op.short(12)),
1672 
        ui::dim(r.command.lines().next().unwrap_or(""))
1673 
    );
1674 
    println!(
1675 
        "  {} {}",
1676 
        ui::note(),
1677 
        ui::dim(format!("as before it: {}", names.join(", ")))
1678 
    );
1679 
    if !r.kept.is_empty() {
1680 
        println!(
1681 
            "  {} {}",
1682 
            ui::caution(),
1683 
            ui::warn(format!(
1684 
                "left as they are, having moved again since: {}",
1685 
                r.kept.join(", ")
1686 
            ))
75167672 Andy McCall 1687 
        );
fce44ae9 Andy McCall ↶ 1688 
    }
98a1620a Andy McCall ↶ 1689 
    if !r.checked_out && r.reverted.contains(&repo.config.bookmark) {
1690 
        println!(
1691 
            "  {} {}",
1692 
            ui::note(),
1693 
            ui::dim("the working copy has work of its own: oxy checkout to move it")
1694 
        );
1695 
    }
1696 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1697 
    Ok(0)
98a1620a Andy McCall ↶ 1698 
}
1699
1700 
/// Where the working copy and bookmark are now, after a command moved
1701 
/// them (as jj says "Working copy now at").
1702 
pub fn where_now(repo: &Repo) {
1703 
    let Ok((_, wc)) = repo.working_copy() else {
1704 
        return;
1705 
    };
1706 
    let heads = repo.bookmark_heads().unwrap_or_default();
1707 
    let newest = heads
1708 
        .iter()
1709 
        .filter_map(|h| repo.store().get_change_meta(h).ok().map(|m| (m, *h)))
1710 
        .max_by_key(|(m, _)| m.hlc);
1711 
    println!(
1712 
        "  {} {}",
1713 
        ui::dim(format!("{:<13}", "Working copy")),
1714 
        ui::id(wc.change_id.short(8))
1715 
    );
1716 
    let tail = match newest {
1717 
        Some((m, _)) => format!(
1718 
            ", newest {} {}",
1719 
            ui::id(m.change_id.short(8)),
1720 
            subject_of(&m.message)
1721 
        ),
1722 
        None => String::new(),
1723 
    };
1724 
    println!(
1725 
        "  {} {}: {}{tail}",
1726 
        ui::dim(format!("{:<13}", "Bookmark")),
1727 
        ui::bookmark(&repo.config.bookmark),
1728 
        plural(heads.len(), "head")
1729 
    );
fce44ae9 Andy McCall ↶ 1730 
}
d02e545d Andy McCall ↶ 1731
b689779e Andy McCall ↶ 1732 
pub fn gc(now: bool, expire_snapshots: bool) -> Result<i32> {
1733 
    let mut repo = open()?;
1734 
    if expire_snapshots {
1735 
        repo.config.snapshot_retention_days = 0;
1736 
    }
135212de Andy McCall ↶ 1737 
    let sp = ui::spinner("Packing and pruning…");
9ae4d15a Andy McCall ↶ 1738 
    let r = repo.gc_with(now, &mut |phase| sp.set(&format!("{phase}…")))?;
135212de Andy McCall ↶ 1739 
    sp.clear();
ba160f60 Andy McCall ↶ 1740 
    if r.packed.objects > 0 {
d02e545d Andy McCall ↶ 1741 
        println!(
da652d63 Andy McCall ↶ 1742 
            "Packed {} into one pack: {} bytes -> {} bytes ({:.0}%).",
1743 
            plural(r.packed.objects, "object"),
ba160f60 Andy McCall ↶ 1744 
            r.packed.raw_bytes,
1745 
            r.packed.packed_bytes,
1746 
            100.0 * r.packed.packed_bytes as f64 / r.packed.raw_bytes.max(1) as f64
d02e545d Andy McCall ↶ 1747 
        );
1748 
    }
75167672 Andy McCall 1749 
    println!(
1750 
        "{} reachable; pruned {} ({} bytes){}{}; {} present.",
ba160f60 Andy McCall ↶ 1751 
        plural(r.reachable, "object"),
1752 
        plural(r.pruned.objects, "unreachable object"),
1753 
        r.pruned.bytes,
75167672 Andy McCall 1754 
        if r.pruned.deferred > 0 {
1755 
            format!(
1756 
                "; {} deferred by the grace period (use --now)",
1757 
                plural(r.pruned.deferred, "object")
1758 
            )
1759 
        } else {
1760 
            String::new()
1761 
        },
1762 
        if r.merged_packs > 0 {
1763 
            format!("; merged {} into one", plural(r.merged_packs, "pack"))
1764 
        } else {
1765 
            String::new()
1766 
        },
ba160f60 Andy McCall ↶ 1767 
        plural(repo.store().pack_count(), "pack")
1768 
    );
767ac6cd Andy McCall 1769 
    // What earlier repacks replaced stays an hour for readers still using
1770 
    // it (oxygenhub#249); a collection after that deletes it.
1771 
    let kept = if r.retired.kept > 0 {
1772 
        format!(
1773 
            "{} retired less than an hour ago kept for readers",
1774 
            plural(r.retired.kept, "file")
1775 
        )
1776 
    } else {
1777 
        String::new()
1778 
    };
1779 
    if r.retired.packs + r.retired.loose > 0 {
1780 
        println!(
1781 
            "Deleted {} and {} retired by earlier repacks{}.",
1782 
            plural(r.retired.packs, "pack"),
1783 
            plural(r.retired.loose, "loose object"),
1784 
            if kept.is_empty() {
1785 
                String::new()
1786 
            } else {
1787 
                format!("; {kept}")
1788 
            }
1789 
        );
1790 
    } else if !kept.is_empty() {
1791 
        println!("{kept}.");
1792 
    }
d02e545d Andy McCall ↶ 1793 
    Ok(0)
1794 
}
614541c3 Andy McCall ↶ 1795
d8d93678 Andy McCall ↶ 1796 
/// `oxy gc --remote NAME`: fold a store remote's bundles into one.
1797 
pub fn gc_remote(name: &str, now: bool) -> Result<i32> {
1798 
    let repo = open()?;
1799 
    let sp = ui::spinner(&format!("Folding {name}'s bundles…"));
1800 
    let r = repo.gc_remote(name, now)?;
1801 
    sp.clear();
1802 
    if r.merged > 0 {
1803 
        println!(
1804 
            "{} {} into one of {} bytes ({})",
1805 
            ui::done("Folded"),
1806 
            plural(r.merged, "bundle"),
1807 
            r.bundle_bytes,
1808 
            plural(r.changes, "change")
1809 
        );
1810 
    } else {
1811 
        println!(
1812 
            "{} {}",
1813 
            ui::note(),
1814 
            ui::dim("nothing to fold: one bundle holds everything")
1815 
        );
1816 
    }
1817 
    println!(
1818 
        "  {} {}",
1819 
        ui::note(),
1820 
        ui::dim(format!(
1821 
            "removed {}{}",
1822 
            plural(r.deleted, "superseded bundle"),
1823 
            if r.deferred > 0 {
1824 
                format!(
1825 
                    "; {} kept for readers that may still fetch them (use --now)",
1826 
                    plural(r.deferred, "bundle")
1827 
                )
1828 
            } else {
1829 
                String::new()
1830 
            }
1831 
        ))
1832 
    );
1833 
    Ok(0)
1834 
}
1835
3e5772cc Andy McCall ↶ 1836 
/// `oxy doctor`: exit 1 when a check fails, 0 otherwise (warnings allowed).
1837 
pub fn doctor(offline: bool, as_json: bool) -> Result<i32> {
1838 
    use oxy_core::repo::Health;
1839 
    let repo = open()?;
1840 
    let sp = ui::spinner(if offline {
1841 
        "Checking…"
1842 
    } else {
1843 
        "Checking, and contacting remotes…"
1844 
    });
1845 
    let r = repo.doctor(!offline);
1846 
    sp.clear();
1847 
    let code = if r.worst() == Health::Fail { 1 } else { 0 };
1848 
    let word = |h: Health| match h {
1849 
        Health::Ok => "ok",
1850 
        Health::Warn => "warning",
1851 
        Health::Fail => "fail",
1852 
    };
1853 
    if as_json {
1854 
        let checks: Vec<String> = r
1855 
            .checks
1856 
            .iter()
1857 
            .map(|c| {
1858 
                json::obj([
1859 
                    ("area", json::s(&c.area)),
1860 
                    ("health", json::s(word(c.health))),
1861 
                    ("message", json::s(&c.message)),
1862 
                    ("hint", json::opt(c.hint.as_deref(), json::s)),
1863 
                ])
1864 
            })
1865 
            .collect();
1866 
        println!(
1867 
            "{}",
1868 
            json::obj([("ok", json::b(code == 0)), ("checks", json::arr(checks))])
1869 
        );
1870 
        return Ok(code);
1871 
    }
1872 
    let mut last = "";
1873 
    for c in &r.checks {
1874 
        if c.area != last {
1875 
            println!("{}", ui::section(&c.area));
1876 
            last = &c.area;
1877 
        }
1878 
        let mark = match c.health {
1879 
            Health::Ok => ui::ok(ui::glyph("✔", "v")),
1880 
            Health::Warn => ui::caution(),
1881 
            Health::Fail => ui::err(ui::glyph("✖", "x")),
1882 
        };
1883 
        println!("  {mark} {}", c.message);
1884 
        if let Some(h) = &c.hint {
1885 
            println!("    {} {}", ui::dim("→"), ui::dim(h));
1886 
        }
1887 
    }
1888 
    let fails = r.checks.iter().filter(|c| c.health == Health::Fail).count();
1889 
    let warns = r.checks.iter().filter(|c| c.health == Health::Warn).count();
1890 
    if fails + warns == 0 {
1891 
        println!("{}", ui::done("Everything looks right."));
1892 
    } else {
1893 
        println!(
1894 
            "{} {}, {}.",
1895 
            if fails > 0 {
1896 
                ui::err(ui::glyph("✖", "x"))
1897 
            } else {
1898 
                ui::caution()
1899 
            },
1900 
            plural(fails, "problem"),
1901 
            plural(warns, "warning")
1902 
        );
1903 
    }
1904 
    Ok(code)
1905 
}
1906
387335ff Andy McCall ↶ 1907 
/// `oxy fsck`: exit 0 when sound (warnings allowed), 1 on any error.
1908 
pub fn fsck(as_json: bool) -> Result<i32> {
1909 
    use oxy_core::repo::Severity;
1910 
    let repo = open()?;
1911 
    let sp = ui::spinner("Checking every object…");
1912 
    let r = repo.fsck()?;
1913 
    sp.clear();
1914 
    let code = if r.errors() > 0 { 1 } else { 0 };
1915 
    if as_json {
1916 
        let problems: Vec<String> = r
1917 
            .problems
1918 
            .iter()
1919 
            .map(|p| {
1920 
                json::obj([
1921 
                    (
1922 
                        "severity",
1923 
                        json::s(match p.severity {
1924 
                            Severity::Error => "error",
1925 
                            Severity::Warning => "warning",
1926 
                        }),
1927 
                    ),
1928 
                    (
1929 
                        "object",
1930 
                        json::opt(p.object.map(|o| o.to_hex()).as_deref(), json::s),
1931 
                    ),
1932 
                    ("what", json::s(&p.what)),
1933 
                ])
1934 
            })
1935 
            .collect();
1936 
        println!(
1937 
            "{}",
1938 
            json::obj([
1939 
                ("ok", json::b(code == 0)),
1940 
                ("objects", json::n(r.objects)),
1941 
                ("ops", json::n(r.ops)),
1942 
                ("changes", json::n(r.changes)),
1943 
                ("signed", json::n(r.signed)),
1944 
                ("unsigned", json::n(r.unsigned)),
1945 
                ("checkpoints", json::n(r.checkpoints)),
1946 
                ("attestations", json::n(r.attestations)),
1947 
                ("errors", json::n(r.errors())),
1948 
                ("warnings", json::n(r.warnings())),
1949 
                ("problems", json::arr(problems)),
1950 
            ])
1951 
        );
1952 
        return Ok(code);
1953 
    }
1954 
    println!(
1955 
        "Checked {}, {}, {} ({} signed or sealed, {} unsigned), {}, {}.",
1956 
        plural(r.objects, "object"),
1957 
        plural(r.ops, "operation"),
1958 
        plural(r.changes, "change"),
1959 
        r.signed,
1960 
        r.unsigned,
1961 
        plural(r.checkpoints, "checkpoint"),
1962 
        plural(r.attestations, "attestation"),
1963 
    );
1964 
    for p in &r.problems {
1965 
        let obj = p
1966 
            .object
1967 
            .map(|o| format!("{} ", ui::hash(format!("#{}", o.short(12)))))
1968 
            .unwrap_or_default();
1969 
        match p.severity {
1970 
            Severity::Error => println!("{} {obj}{}", ui::err(ui::glyph("✖", "x")), p.what),
1971 
            Severity::Warning => println!("{} {obj}{}", ui::caution(), p.what),
1972 
        }
1973 
    }
1974 
    if r.problems.is_empty() {
1975 
        println!("{}", ui::done("No problems found."));
1976 
    } else if code == 0 {
1977 
        println!(
1978 
            "{}",
1979 
            ui::done(format!("Sound, with {}.", plural(r.warnings(), "warning")))
1980 
        );
1981 
    } else {
1982 
        println!(
1983 
            "{} {} and {}. Fetch missing objects from a remote with `oxy pull`, or clone afresh and compare.",
1984 
            ui::err(ui::glyph("✖", "x")),
1985 
            plural(r.errors(), "error"),
1986 
            plural(r.warnings(), "warning")
1987 
        );
1988 
    }
1989 
    Ok(code)
1990 
}
1991
79d03f82 Andy McCall ↶ 1992 
/// The head the working copy sits on, for commands that default to it. With
1993 
/// several heads beneath the working copy, the most recently made one is
1994 
/// chosen and announced.
614541c3 Andy McCall ↶ 1995 
fn current_head(repo: &Repo) -> Result<oxy_core::hash::ChangeHash> {
cc7a0056 Andy McCall ↶ 1996 
    let snap = repo.snapshot_status("oxy")?;
614541c3 Andy McCall ↶ 1997 
    let base = snap.base.maximal(&snap.wc.deps);
1998 
    match base.as_slice() {
79d03f82 Andy McCall ↶ 1999 
        [] => anyhow::bail!("the working copy sits on no change yet"),
614541c3 Andy McCall ↶ 2000 
        [h] => Ok(*h),
79d03f82 Andy McCall ↶ 2001 
        many => {
2002 
            let latest = many
2003 
                .iter()
2004 
                .max_by_key(|h| snap.base.get(h).map(|c| (c.hlc, **h)))
2005 
                .copied()
2006 
                .unwrap();
2007 
            let c = repo.store().get_change(&latest)?;
75167672 Andy McCall 2008 
            println!(
2009 
                "Defaulting to {} #{} (most recent of the {} heads under the working copy)",
2010 
                short_id(&c),
2011 
                latest.short(12),
2012 
                many.len()
2013 
            );
79d03f82 Andy McCall ↶ 2014 
            Ok(latest)
2015 
        }
614541c3 Andy McCall ↶ 2016 
    }
2017 
}
2018
6a81dbab Andy McCall ↶ 2019 
/// `oxy describe` without -m: the working copy's name for a build.
2020 
pub fn describe_name(as_json: bool) -> Result<i32> {
2021 
    let repo = open()?;
2022 
    let d = repo.describe_working_copy()?;
2023 
    if as_json {
2024 
        println!(
2025 
            "{}",
2026 
            json::obj([
2027 
                ("describe", json::s(&d.line())),
2028 
                ("tag", json::opt(d.tag.as_ref(), |t| json::s(t))),
2029 
                ("distance", json::n(d.distance)),
2030 
                ("bookmark", json::s(&d.bookmark)),
2031 
                ("change", json::s(&d.change.to_hex())),
2032 
                ("hash", json::s(&d.hash.to_hex())),
2033 
                ("dirty", json::b(d.dirty)),
2034 
            ])
2035 
        );
2036 
    } else {
2037 
        println!("{}", d.line());
2038 
    }
2039 
    Ok(0)
2040 
}
2041
614541c3 Andy McCall ↶ 2042 
pub fn describe(message: &str, change: Option<&str>) -> Result<i32> {
2043 
    let repo = open()?;
2044 
    let h = match change {
2045 
        Some(c) => repo.resolve_change(c)?,
2046 
        None => current_head(&repo)?,
2047 
    };
2048 
    let new = repo.describe(&h, message)?;
631fc897 Andy McCall ↶ 2049 
    let c = repo.store().get_change_meta(&new)?;
75167672 Andy McCall 2050 
    println!(
2051 
        "{} {} {}  {}",
2052 
        ui::done("Described"),
631fc897 Andy McCall ↶ 2053 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2054 
        ui::hash(format!("#{}", new.short(12))),
2055 
        ui::subject(subject_of(message))
2056 
    );
614541c3 Andy McCall ↶ 2057 
    Ok(0)
2058 
}
2059
23b217d7 Andy McCall ↶ 2060 
pub fn amend(message: Option<&str>, into: Option<&str>) -> Result<i32> {
614541c3 Andy McCall ↶ 2061 
    let repo = open()?;
530a0fc6 Andy McCall ↶ 2062 
    let before = repo.view()?;
23b217d7 Andy McCall ↶ 2063 
    let new = match into {
2064 
        Some(spec) => {
2065 
            let target = repo.resolve_change(spec)?;
2066 
            repo.amend_into(&target, message)?
2067 
        }
2068 
        None => repo.amend(message)?,
2069 
    };
631fc897 Andy McCall ↶ 2070 
    let c = repo.store().get_change_meta(&new)?;
75167672 Andy McCall 2071 
    println!(
2072 
        "{} {} {}  {}",
2073 
        ui::done("Amended"),
631fc897 Andy McCall ↶ 2074 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2075 
        ui::hash(format!("#{}", new.short(12))),
2076 
        ui::subject(subject_of(&c.message))
2077 
    );
530a0fc6 Andy McCall ↶ 2078 
    // Rewriting what a remote already has means the next push replaces it
2079 
    // there (oxygen#99): say so now, not when the push is refused.
2080 
    let bookmark = repo.config.bookmark.clone();
2081 
    let (had, has) = (
2082 
        repo.heads_of(&before, &bookmark)?,
2083 
        repo.heads_of(&repo.view()?, &bookmark)?,
2084 
    );
2085 
    for (remote, bookmarks) in &before.remotes {
2086 
        let Some(st) = bookmarks.get(&bookmark) else {
2087 
            continue;
2088 
        };
2089 
        let theirs = repo.store().get_state(st)?.heads;
2090 
        if theirs.iter().any(|h| had.contains(h) && !has.contains(h)) {
2091 
            println!(
2092 
                "  {} {}",
2093 
                ui::caution(),
2094 
                ui::warn(format!(
2095 
                    "{remote}/{bookmark} has the change as it was: the next push of {bookmark} needs --force to replace it"
2096 
                ))
2097 
            );
2098 
        }
2099 
    }
98a1620a Andy McCall ↶ 2100 
    where_now(&repo);
614541c3 Andy McCall ↶ 2101 
    Ok(0)
2102 
}
2103
2c9ddac3 Andy McCall ↶ 2104 
pub fn abandon(change: Option<&str>, revset: Option<&str>, yes: bool) -> Result<i32> {
614541c3 Andy McCall ↶ 2105 
    let repo = open()?;
2c9ddac3 Andy McCall ↶ 2106 
    let Some(r) = revset else {
2107 
        let h = repo.resolve_change(change.unwrap_or_default())?;
2108 
        abandon_one(&repo, h)?;
2109 
        where_now(&repo);
2110 
        return Ok(0);
2111 
    };
2112 
    // A revset: say what it selects, refuse an empty set, ask above a few.
2113 
    let selected = repo.revset(r)?;
2114 
    let wc = repo.working_copy().ok().map(|(h, _)| h);
2115 
    let hashes: Vec<ChangeHash> = selected
2116 
        .hashes
2117 
        .iter()
2118 
        .copied()
2119 
        .filter(|h| Some(*h) != wc)
2120 
        .collect();
2121 
    if hashes.is_empty() {
2122 
        anyhow::bail!("{r:?} selects no change to abandon");
2123 
    }
2124 
    println!(
2125 
        "{} {} selects {}:",
2126 
        ui::section("abandon"),
2127 
        ui::id(r),
2128 
        plural(hashes.len(), "change")
2129 
    );
2130 
    for h in &hashes {
2131 
        if let Some(m) = selected.metas.get(h) {
2132 
            println!(
2133 
                "  {} {}  {}",
2134 
                ui::id(m.change_id.short(8)),
2135 
                ui::hash(format!("#{}", h.short(12))),
2136 
                subject_of(&m.message)
2137 
            );
2138 
        }
2139 
    }
2140 
    const ASK_ABOVE: usize = 5;
2141 
    if hashes.len() > ASK_ABOVE && !yes {
2142 
        anyhow::bail!("that is more than {ASK_ABOVE} changes; pass --yes to abandon them all");
2143 
    }
2144 
    // Newest first: abandoning a change rewrites what depends on it, so a
2145 
    // later member is found again by its ChangeId.
2146 
    let mut done = 0;
2147 
    for h in &hashes {
2148 
        let Some(m) = selected.metas.get(h) else {
2149 
            continue;
2150 
        };
2151 
        let now = match repo.resolve_change(&m.change_id.to_hex()) {
2152 
            Ok(h) => h,
2153 
            Err(_) => continue,
2154 
        };
2155 
        abandon_one(&repo, now)?;
2156 
        done += 1;
2157 
    }
2158 
    println!("{} {}", ui::done("Abandoned"), plural(done, "change"));
2159 
    where_now(&repo);
2160 
    Ok(0)
2161 
}
2162
2163 
fn abandon_one(repo: &Repo, h: ChangeHash) -> Result<()> {
631fc897 Andy McCall ↶ 2164 
    let c = repo.store().get_change_meta(&h)?;
6706bdcf Andy McCall ↶ 2165 
    let notes = repo.abandon(&h)?;
75167672 Andy McCall 2166 
    println!(
2167 
        "{} {} {}  {}",
2168 
        ui::done("Abandoned"),
631fc897 Andy McCall ↶ 2169 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2170 
        ui::hash(format!("#{}", h.short(12))),
2171 
        ui::dim("its content remains on disk as uncommitted work if the working copy sat on it")
2172 
    );
6706bdcf Andy McCall ↶ 2173 
    for n in notes {
94084087 Andy McCall ↶ 2174 
        println!("  {} {n}", ui::note());
6706bdcf Andy McCall ↶ 2175 
    }
2c9ddac3 Andy McCall ↶ 2176 
    Ok(())
614541c3 Andy McCall ↶ 2177 
}
252e8cb2 Andy McCall ↶ 2178
2179 
pub fn checkpoint() -> Result<i32> {
2180 
    let repo = open()?;
135212de Andy McCall ↶ 2181 
    let sp = ui::spinner("Writing checkpoint…");
252e8cb2 Andy McCall ↶ 2182 
    let (r, changes, bytes) = repo.checkpoint()?;
75167672 Andy McCall 2183 
    sp.done(&format!(
2184 
        "{} {} of {} ({} bytes) for {}",
2185 
        ui::done("Checkpoint"),
2186 
        ui::hash(format!("#{}", r.short(12))),
2187 
        plural(changes, "change"),
2188 
        bytes,
2189 
        ui::id(&repo.config.bookmark)
2190 
    ));
135212de Andy McCall ↶ 2191 
    Ok(0)
2192 
}
2193
2194 
/// For shell prompts: silent (exit 1) outside a repository, otherwise one line.
694805cc Andy McCall ↶ 2195 
pub fn prompt(format: &str, glyphs: bool, color: Option<&str>) -> Result<i32> {
75167672 Andy McCall 2196 
    let Ok(repo) = Repo::open(&std::env::current_dir()?) else {
2197 
        return Ok(1);
2198 
    };
135212de Andy McCall ↶ 2199 
    let info = repo.quick_status()?;
75167672 Andy McCall 2200 
    let fmt = if glyphs && format == oxy_core::repo::DEFAULT_PROMPT_FORMAT {
2201 
        oxy_core::repo::GLYPH_PROMPT_FORMAT
2202 
    } else {
2203 
        format
2204 
    };
694805cc Andy McCall ↶ 2205 
    let line = match color {
2206 
        Some("bash") => info.format_colored(fmt, ("\\[", "\\]")),
2207 
        Some("zsh") => info.format_colored(fmt, ("%{", "%}")),
2208 
        Some(_) => info.format_colored(fmt, ("", "")),
2209 
        None => info.format(fmt),
2210 
    };
2211 
    println!("{line}");
252e8cb2 Andy McCall ↶ 2212 
    Ok(0)
2213 
}
7421309f Andy McCall ↶ 2214
2215 
pub fn sparse(paths: &[String]) -> Result<i32> {
2216 
    let mut repo = open()?;
2217 
    if paths.is_empty() {
2218 
        if repo.config.sparse_paths.is_empty() {
2219 
            println!("No sparse filter: the whole tree is materialized.");
2220 
        } else {
2221 
            println!("{}", ui::heading("Sparse filter"));
2222 
            for p in &repo.config.sparse_paths {
2223 
                println!("  {}", ui::path(p));
2224 
            }
2225 
        }
2226 
        return Ok(0);
2227 
    }
2228 
    let snap = repo.snapshot("oxy sparse")?;
2229 
    if !snap.wc.tree_ops.is_empty() || !snap.wc.edits.is_empty() {
75167672 Andy McCall 2230 
        anyhow::bail!(
2231 
            "the working copy has changes; commit them before changing the sparse filter"
2232 
        );
7421309f Andy McCall ↶ 2233 
    }
2234 
    repo.config.set("filter.paths", &paths.join(","))?;
2235 
    repo.save_config()?;
2236 
    let heads = repo.bookmark_heads()?;
2237 
    let sp = ui::spinner("Re-checking out with the new filter…");
2238 
    let r = repo.checkout(&heads, true, "oxy sparse (checkout)")?;
75167672 Andy McCall 2239 
    sp.done(&format!(
2240 
        "{} {}: {} written, {} removed",
c07406bc Andy McCall ↶ 2241 
        ui::done("Sparse filter set to"),
75167672 Andy McCall 2242 
        ui::path(paths.join(",")),
2243 
        plural(r.written, "file"),
2244 
        r.removed
2245 
    ));
7421309f Andy McCall ↶ 2246 
    Ok(0)
2247 
}
132b884b Andy McCall ↶ 2248
2249 
pub fn tag_create(name: &str, changes: &[String], message: &str) -> Result<i32> {
2250 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2251 
    repo.snapshot_status("oxy tag")?;
132b884b Andy McCall ↶ 2252 
    let heads = if changes.is_empty() {
2253 
        repo.bookmark_heads()?
2254 
    } else {
2255 
        let mut heads = Vec::new();
2256 
        for c in changes {
2257 
            heads.extend(repo.resolve_heads(c)?);
2258 
        }
2259 
        heads
2260 
    };
2261 
    let t = repo.tag_create(name, &heads, message)?;
2262 
    println!(
94084087 Andy McCall ↶ 2263 
        "{} {} {} {} ({}){}",
2264 
        ui::done("Tagged"),
2265 
        ui::bookmark(&t.name),
2266 
        ui::dim(ui::glyph("→", "->")),
132b884b Andy McCall ↶ 2267 
        ui::hash(format!("#{}", t.state.short(12))),
2268 
        plural(t.heads.len(), "head"),
75167672 Andy McCall 2269 
        t.signer
2270 
            .map(|s| format!(", signed by {s}"))
2271 
            .unwrap_or_else(|| ui::dim(", unsigned"))
132b884b Andy McCall ↶ 2272 
    );
2273 
    Ok(0)
2274 
}
2275
1196b29b Andy McCall ↶ 2276 
pub fn tag_list(as_json: bool) -> Result<i32> {
132b884b Andy McCall ↶ 2277 
    let repo = open()?;
2278 
    let tags = repo.tags()?;
1196b29b Andy McCall ↶ 2279 
    if as_json {
2280 
        println!(
2281 
            "{}",
2282 
            json::arr(tags.iter().map(|t| {
2283 
                json::obj([
2284 
                    ("name", json::s(&t.name)),
2285 
                    ("state", json::s(&t.state.to_hex())),
2286 
                    ("heads", json::hashes(&t.heads)),
2287 
                    ("message", json::s(&t.message)),
75167672 Andy McCall 2288 
                    (
2289 
                        "signer",
2290 
                        json::opt(t.signer.as_ref(), |s| json::s(&s.to_string())),
2291 
                    ),
1196b29b Andy McCall ↶ 2292 
                ])
2293 
            }))
2294 
        );
2295 
        return Ok(0);
2296 
    }
132b884b Andy McCall ↶ 2297 
    if tags.is_empty() {
2298 
        println!("{}", ui::dim("No tags."));
2299 
    }
2300 
    for t in tags {
2301 
        println!(
94084087 Andy McCall ↶ 2302 
            "{} {} {}{}{}{}",
2303 
            ui::ok(ui::glyph("⚑", "#")),
2304 
            ui::bookmark(&t.name),
6a81dbab Andy McCall ↶ 2305 
            // The heads, as `oxy log` shows changes, not the state hash.
2306 
            ui::hash(
2307 
                t.heads
2308 
                    .iter()
2309 
                    .map(|h| format!("#{}", h.short(12)))
2310 
                    .collect::<Vec<_>>()
2311 
                    .join(" ")
2312 
            ),
94084087 Andy McCall ↶ 2313 
            ui::sep() + &ui::dim(plural(t.heads.len(), "head")),
75167672 Andy McCall 2314 
            if t.message.is_empty() {
2315 
                String::new()
2316 
            } else {
2317 
                format!("  {}", ui::subject(subject_of(&t.message)))
2318 
            },
2319 
            t.signer
2320 
                .map(|s| ui::sep() + &ui::ok(format!("{} {s}", ui::glyph("✔", "v"))))
2321 
                .unwrap_or_default()
132b884b Andy McCall ↶ 2322 
        );
2323 
    }
2324 
    Ok(0)
a46f3e4f Andy McCall ↶ 2325 
}
2326
2327 
/// Whether `name` is a bookmark, here or only on a remote: what checkout
2328 
/// and workspace add take as "be on this bookmark" (oxygen#60).
2329 
fn names_bookmark(repo: &oxy_core::repo::Repo, name: &str) -> Result<bool> {
2330 
    Ok(repo.view()?.bookmarks.contains_key(name)
2331 
        || repo
2332 
            .remote_only_bookmarks()?
2333 
            .iter()
2334 
            .any(|b| b.name == name || format!("{}/{}", b.remote, b.name) == name))
132b884b Andy McCall ↶ 2335 
}
4e88e774 Andy McCall ↶ 2336
2337 
pub fn workspace_add(path: &std::path::Path, changes: &[String]) -> Result<i32> {
2338 
    let repo = open()?;
a46f3e4f Andy McCall ↶ 2339 
    // One bookmark named: the new workspace is on it (oxygen#60), not on
2340 
    // this workspace's bookmark with that one's files.
2341 
    if let [name] = changes {
2342 
        if names_bookmark(&repo, name)? {
2343 
            let (local, _) = repo.local_bookmark_for(name)?;
2344 
            let heads = repo.resolve_heads(&local)?;
2345 
            let sp = ui::spinner(&format!("Creating workspace at {}…", path.display()));
2346 
            let ws = repo.workspace_add_on(path, Some(&heads), Some(&local))?;
2347 
            sp.done(&format!(
2348 
                "{} {} (workspace {}) on {}",
2349 
                ui::done("Workspace created at"),
2350 
                ui::path(ws.root().display()),
2351 
                ui::id(ws.workspace().short(8)),
2352 
                ui::bookmark(&local)
2353 
            ));
2354 
            return Ok(0);
2355 
        }
2356 
    }
4e88e774 Andy McCall ↶ 2357 
    let heads = if changes.is_empty() {
2358 
        None
2359 
    } else {
2360 
        let mut heads = Vec::new();
2361 
        for c in changes {
2362 
            heads.extend(repo.resolve_heads(c)?);
2363 
        }
2364 
        Some(heads)
2365 
    };
2366 
    let sp = ui::spinner(&format!("Creating workspace at {}…", path.display()));
2367 
    let ws = repo.workspace_add(path, heads.as_deref())?;
75167672 Andy McCall 2368 
    sp.done(&format!(
2369 
        "{} {} (workspace {})",
2370 
        ui::done("Workspace created at"),
2371 
        ui::path(ws.root().display()),
2372 
        ui::id(ws.workspace().short(8))
2373 
    ));
4e88e774 Andy McCall ↶ 2374 
    Ok(0)
2375 
}
2376
1196b29b Andy McCall ↶ 2377 
pub fn workspace_list(as_json: bool) -> Result<i32> {
4e88e774 Andy McCall ↶ 2378 
    let repo = open()?;
1196b29b Andy McCall ↶ 2379 
    if as_json {
2380 
        println!(
2381 
            "{}",
2382 
            json::arr(repo.workspaces()?.iter().map(|w| {
2383 
                json::obj([
2384 
                    ("id", json::s(&w.id.to_hex())),
2385 
                    ("path", json::s(&w.path.to_string_lossy())),
2386 
                    ("current", json::b(w.current)),
75167672 Andy McCall 2387 
                    (
2388 
                        "working_copy",
2389 
                        json::opt(w.working_copy, |h| json::s(&h.to_hex())),
2390 
                    ),
1196b29b Andy McCall ↶ 2391 
                ])
2392 
            }))
2393 
        );
2394 
        return Ok(0);
2395 
    }
4e88e774 Andy McCall ↶ 2396 
    for w in repo.workspaces()? {
2397 
        println!(
2398 
            "{} {} {}{}",
75167672 Andy McCall 2399 
            if w.current {
2400 
                ui::ok(ui::glyph("●", "*"))
2401 
            } else {
2402 
                ui::dim(ui::glyph("○", "o"))
2403 
            },
4e88e774 Andy McCall ↶ 2404 
            ui::id(w.id.short(8)),
2405 
            ui::path(w.path.display()),
75167672 Andy McCall 2406 
            w.working_copy
2407 
                .map(|h| ui::sep() + &ui::dim(format!("working copy #{}", h.short(12))))
2408 
                .unwrap_or_else(|| ui::sep() + &ui::warn("not in view"))
4e88e774 Andy McCall ↶ 2409 
        );
2410 
    }
2411 
    Ok(0)
2412 
}
2413
2414 
pub fn workspace_forget(spec: &str) -> Result<i32> {
2415 
    let repo = open()?;
2416 
    let all = repo.workspaces()?;
2417 
    let target = std::fs::canonicalize(spec).ok();
75167672 Andy McCall 2418 
    let matches: Vec<_> = all
2419 
        .iter()
2420 
        .filter(|w| w.id.starts_with_hex(spec) || target.as_ref().is_some_and(|t| *t == w.path))
2421 
        .collect();
4e88e774 Andy McCall ↶ 2422 
    let w = match matches.as_slice() {
2423 
        [w] => *w,
2424 
        [] => anyhow::bail!("no workspace matches {spec:?}"),
2425 
        _ => anyhow::bail!("{spec:?} is ambiguous"),
2426 
    };
2427 
    repo.workspace_forget(&w.id)?;
75167672 Andy McCall 2428 
    println!(
2429 
        "{} workspace {} at {}; its files were left in place.",
2430 
        ui::done("Forgot"),
2431 
        ui::id(w.id.short(8)),
2432 
        ui::path(w.path.display())
2433 
    );
4e88e774 Andy McCall ↶ 2434 
    Ok(0)
2435 
}
cdb5beba Andy McCall ↶ 2436
2437 
pub fn lock(path: &str) -> Result<i32> {
2438 
    let repo = open()?;
2439 
    repo.lock_path(path)?;
75167672 Andy McCall 2440 
    println!(
2441 
        "{} {} {}",
2442 
        ui::done("Locked"),
2443 
        ui::path(path),
2444 
        ui::dim("(advisory, local)")
2445 
    );
cdb5beba Andy McCall ↶ 2446 
    Ok(0)
2447 
}
2448
2449 
pub fn unlock(path: &str) -> Result<i32> {
2450 
    let repo = open()?;
2451 
    repo.unlock_path(path)?;
94084087 Andy McCall ↶ 2452 
    println!("{} {}", ui::done("Unlocked"), ui::path(path));
cdb5beba Andy McCall ↶ 2453 
    Ok(0)
2454 
}
23b217d7 Andy McCall ↶ 2455
2456 
pub fn split(change: &str, paths: &[String]) -> Result<i32> {
2457 
    let repo = open()?;
2458 
    let h = repo.resolve_change(change)?;
2459 
    let (h1, h2) = repo.split(&h, paths)?;
631fc897 Andy McCall ↶ 2460 
    let c1 = repo.store().get_change_meta(&h1)?;
2461 
    let c2 = repo.store().get_change_meta(&h2)?;
75167672 Andy McCall 2462 
    println!(
2463 
        "{} into {} {} and {} {}",
2464 
        ui::done("Split"),
631fc897 Andy McCall ↶ 2465 
        ui::id(c1.change_id.short(8)),
75167672 Andy McCall 2466 
        ui::hash(format!("#{}", h1.short(12))),
631fc897 Andy McCall ↶ 2467 
        ui::id(c2.change_id.short(8)),
75167672 Andy McCall 2468 
        ui::hash(format!("#{}", h2.short(12)))
2469 
    );
23b217d7 Andy McCall ↶ 2470 
    Ok(0)
2471 
}
7b9809e6 Andy McCall ↶ 2472
2473 
fn heads_from(repo: &Repo, changes: &[String]) -> Result<Vec<oxy_core::hash::ChangeHash>> {
2474 
    let mut heads = Vec::new();
2475 
    for c in changes {
2476 
        heads.extend(repo.resolve_heads(c)?);
2477 
    }
2478 
    Ok(heads)
2479 
}
2480
4fe7d604 Andy McCall ↶ 2481 
pub fn bookmark_create(name: &str, changes: &[String], upto: bool, only: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2482 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2483 
    repo.snapshot_status("oxy bookmark create")?;
75167672 Andy McCall 2484 
    let heads = if changes.is_empty() {
2485 
        None
2486 
    } else {
4fe7d604 Andy McCall ↶ 2487 
        let named = heads_from(&repo, changes)?;
2488 
        let (_, wc) = repo.working_copy()?;
2489 
        let gap = repo.state_gap(&wc.deps, &named)?;
2490 
        if upto {
2491 
            Some(gap.upto)
2492 
        } else if only || gap.earlier.is_empty() {
2493 
            Some(named)
2494 
        } else {
2495 
            anyhow::bail!(
2496 
                "{name} at {} would lack {} of the current state recorded before it:\n{}\n\
2497 
                 A state is its heads and what they depend on, not everything recorded before them.\n\
2498 
                 Pass --upto for everything of the current state up to {0} (as a Git branch would hold),\n\
2499 
                 or --only for just {0} and what it depends on.",
2500 
                changes.join(" "),
2501 
                plural(gap.earlier.len(), "change"),
2502 
                listed_changes(&repo, &gap.earlier)
2503 
            );
2504 
        }
75167672 Andy McCall 2505 
    };
7b9809e6 Andy McCall ↶ 2506 
    let heads = repo.bookmark_create(name, heads.as_deref())?;
75167672 Andy McCall 2507 
    println!(
2508 
        "{} bookmark {} {} {}",
2509 
        ui::done("Created"),
2510 
        ui::bookmark(name),
2511 
        ui::dim(ui::glyph("→", "->")),
2512 
        ui::dim(plural(heads.len(), "head"))
2513 
    );
2514 
    println!(
2515 
        "  {} {}",
2516 
        ui::note(),
2517 
        ui::dim(format!("switch to it with oxy bookmark switch {name}"))
2518 
    );
7b9809e6 Andy McCall ↶ 2519 
    Ok(0)
2520 
}
2521
4fe7d604 Andy McCall ↶ 2522 
/// Up to five changes, newest last, as `  #hash subject` lines.
2523 
fn listed_changes(repo: &Repo, changes: &[oxy_core::hash::ChangeHash]) -> String {
2524 
    let shown = changes.len().min(5);
2525 
    let mut lines: Vec<String> = changes[changes.len() - shown..]
2526 
        .iter()
2527 
        .map(|h| {
2528 
            let subject = repo
2529 
                .store()
2530 
                .get_change(h)
2531 
                .map(|c| subject_of(&c.message).to_string())
2532 
                .unwrap_or_default();
2533 
            format!("  #{} {subject}", h.short(12))
2534 
        })
2535 
        .collect();
2536 
    if changes.len() > shown {
2537 
        lines.insert(0, format!("  … and {} earlier", changes.len() - shown));
2538 
    }
2539 
    lines.join("\n")
2540 
}
2541
06d16dc2 Andy McCall ↶ 2542 
pub fn bookmark_set(name: &str, changes: &[String], upto: bool, only: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2543 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2544 
    repo.snapshot_status("oxy bookmark set")?;
06d16dc2 Andy McCall ↶ 2545 
    let named = heads_from(&repo, changes)?;
2546 
    // What the bookmark holds now and the new heads would leave out.
2547 
    let current = repo
2548 
        .bookmarks()?
2549 
        .into_iter()
2550 
        .find(|b| b.name == name)
2551 
        .map(|b| b.heads)
2552 
        .ok_or_else(|| anyhow::anyhow!("no bookmark {name}"))?;
2553 
    let gap = repo.state_gap(&current, &named)?;
4afab467 Andy McCall ↶ 2554 
    // A fast-forward: the new heads hold the bookmark's newest head, so
2555 
    // what they leave out is older work nothing since has built on, such
2556 
    // as an early change no later one depends on (oxygen#78). Keep it, as
2557 
    // --upto does, and say so.
2558 
    let newest = current
2559 
        .iter()
2560 
        .filter_map(|h| repo.store().get_change_meta(h).ok().map(|m| (m.hlc, *h)))
2561 
        .max()
2562 
        .map(|(_, h)| h);
2563 
    // Ahead, too: a head the bookmark holds already (it would only drop
2564 
    // the others) is not a move forward.
2565 
    let ahead = repo
2566 
        .load_state_history(&current)
2567 
        .is_ok_and(|st| named.iter().any(|h| !st.contains(h)));
2568 
    let forward = !only
2569 
        && ahead
2570 
        && !gap.earlier.is_empty()
2571 
        && newest.is_some_and(|n| {
2572 
            repo.load_state_history(&named)
2573 
                .is_ok_and(|st| st.contains(&n))
2574 
        });
06d16dc2 Andy McCall ↶ 2575 
    let heads = if upto {
4afab467 Andy McCall ↶ 2576 
        gap.upto
2577 
    } else if forward {
2578 
        println!(
2579 
            "  {} {}",
2580 
            ui::note(),
2581 
            ui::dim(format!(
2582 
                "{} builds on {name}'s newest head; keeping {} it holds that {0} does not depend on",
2583 
                changes.join(" "),
2584 
                plural(gap.earlier.len(), "change")
2585 
            ))
2586 
        );
06d16dc2 Andy McCall ↶ 2587 
        gap.upto
2588 
    } else if only || gap.earlier.is_empty() {
2589 
        named
2590 
    } else {
2591 
        anyhow::bail!(
2592 
            "{name} at {} would lose {} it holds now, recorded before it:\n{}\n\
2593 
             A state is its heads and what they depend on, not everything recorded before them.\n\
2594 
             Pass --upto to keep everything {name} holds up to {0} (as a Git branch would),\n\
2595 
             or --only for just {0} and what it depends on.",
2596 
            changes.join(" "),
2597 
            plural(gap.earlier.len(), "change"),
2598 
            listed_changes(&repo, &gap.earlier)
2599 
        );
2600 
    };
7b9809e6 Andy McCall ↶ 2601 
    let heads = repo.bookmark_set(name, &heads)?;
75167672 Andy McCall 2602 
    println!(
2603 
        "{} bookmark {} {} {}",
2604 
        ui::done("Moved"),
2605 
        ui::bookmark(name),
2606 
        ui::dim(ui::glyph("→", "->")),
2607 
        ui::dim(plural(heads.len(), "head"))
2608 
    );
7b9809e6 Andy McCall ↶ 2609 
    Ok(0)
2610 
}
2611
2612 
pub fn bookmark_delete(name: &str) -> Result<i32> {
2613 
    let repo = open()?;
2614 
    repo.bookmark_delete(name)?;
75167672 Andy McCall 2615 
    println!(
2616 
        "{} bookmark {} {}",
2617 
        ui::done("Deleted"),
2618 
        ui::bookmark(name),
2619 
        ui::dim("(its changes stay until unreachable)")
2620 
    );
7b9809e6 Andy McCall ↶ 2621 
    Ok(0)
2622 
}
2623
bf3a6781 Andy McCall ↶ 2624 
/// Heads with their metadata, newest first.
2625 
fn heads_newest_first(
2626 
    repo: &Repo,
2627 
    heads: &[oxy_core::hash::ChangeHash],
2628 
) -> Vec<(oxy_core::hash::ChangeHash, oxy_core::state::ChangeMeta)> {
2629 
    let mut out: Vec<_> = heads
2630 
        .iter()
2631 
        .filter_map(|h| repo.store().get_change_meta(h).ok().map(|m| (*h, m)))
2632 
        .collect();
2633 
    out.sort_by_key(|(_, m)| std::cmp::Reverse(m.hlc));
2634 
    out
2635 
}
2636
2637 
/// One head as a line: id, hash, author, when, subject.
2638 
fn print_head(
2639 
    repo: &Repo,
2640 
    indent: &str,
2641 
    h: &oxy_core::hash::ChangeHash,
2642 
    m: &oxy_core::state::ChangeMeta,
2643 
) {
2644 
    println!(
2645 
        "{indent}{} {} {}{}{}{}{}",
2646 
        ui::id(m.change_id.short(8)),
2647 
        ui::dim(format!("#{}", &h.to_hex()[..8])),
2648 
        author_name(repo, m),
2649 
        ui::sep(),
2650 
        ui::dim(ui::ago(m.hlc.wall_ms)),
2651 
        ui::sep(),
2652 
        ui::subject(subject_of(&m.message))
2653 
    );
2654 
}
2655
2656 
pub fn bookmark_show(name: Option<&str>, as_json: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2657 
    let repo = open()?;
bf3a6781 Andy McCall ↶ 2658 
    let name = name.unwrap_or(&repo.config.bookmark).to_string();
2659 
    let view = repo.view()?;
2660 
    let st = match view.bookmarks.get(&name) {
2661 
        Some(st) => *st,
2662 
        None => match oxy_core::repo::remote_bookmark(&view, &name) {
2663 
            Some((_, _, st)) => st,
2664 
            None => anyhow::bail!("no bookmark {name}: oxy bookmark list --all lists them"),
2665 
        },
2666 
    };
2667 
    let heads = repo.store().get_state(&st)?.heads;
2668 
    let shown = heads_newest_first(&repo, &heads);
2669 
    if as_json {
2670 
        println!(
2671 
            "{}",
2672 
            json::obj([
2673 
                ("name", json::s(&name)),
2674 
                ("current", json::b(name == repo.config.bookmark)),
2675 
                (
2676 
                    "heads",
2677 
                    json::arr(shown.iter().map(|(h, m)| {
2678 
                        json::obj([
2679 
                            ("hash", json::s(&h.to_hex())),
2680 
                            ("id", json::s(&m.change_id.to_string())),
2681 
                            ("author", json::s(&author_name(&repo, m))),
2682 
                            ("time_ms", json::n(m.hlc.wall_ms)),
2683 
                            ("subject", json::s(subject_of(&m.message))),
2684 
                        ])
2685 
                    }))
2686 
                ),
2687 
            ])
2688 
        );
2689 
        return Ok(0);
2690 
    }
2691 
    println!(
2692 
        "{} {}{}{}",
2693 
        ui::ok(ui::glyph("●", "*")),
2694 
        ui::bookmark(&name),
2695 
        ui::sep(),
2696 
        ui::dim(plural(heads.len(), "head"))
2697 
    );
2698 
    for (h, m) in &shown {
2699 
        print_head(&repo, "  ", h, m);
2700 
    }
2701 
    if heads.len() > 1 {
2702 
        println!(
2703 
            "  {}",
2704 
            ui::dim("None depends on another: the bookmark is all of them and their dependencies.")
2705 
        );
2706 
    }
2707 
    Ok(0)
2708 
}
2709
2710 
pub fn bookmark_list(all: bool, verbose: bool, as_json: bool) -> Result<i32> {
2711 
    let repo = open()?;
14edbaaf Andy McCall ↶ 2712 
    let remote_only = repo.remote_only_bookmarks()?;
c6aa5bd9 Andy McCall ↶ 2713 
    if as_json {
14edbaaf Andy McCall ↶ 2714 
        let mut items: Vec<String> = repo
2715 
            .bookmarks()?
2716 
            .into_iter()
2717 
            .map(|b| {
2718 
                json::obj([
2719 
                    ("name", json::s(&b.name)),
2720 
                    ("heads", json::hashes(&b.heads)),
2721 
                    ("current", json::b(b.current)),
2722 
                    ("ahead", json::opt(b.ahead, json::n)),
2723 
                    ("behind", json::opt(b.behind, json::n)),
42ccf504 Andy McCall ↶ 2724 
                    ("remote", json::opt(b.remote.as_deref(), json::s)),
14edbaaf Andy McCall ↶ 2725 
                ])
2726 
            })
2727 
            .collect();
2728 
        if all {
2729 
            items.extend(remote_only.iter().map(|b| {
2730 
                json::obj([
2731 
                    ("name", json::s(&format!("{}/{}", b.remote, b.name))),
2732 
                    ("heads", json::hashes(&b.heads)),
2733 
                    ("current", json::b(false)),
2734 
                    ("ahead", "null".into()),
2735 
                    ("behind", "null".into()),
2736 
                    ("remote", json::s(&b.remote)),
2737 
                ])
2738 
            }));
2739 
        }
c6aa5bd9 Andy McCall ↶ 2740 
        println!("{}", json::arr(items));
2741 
        return Ok(0);
2742 
    }
7b9809e6 Andy McCall ↶ 2743 
    for b in repo.bookmarks()? {
75167672 Andy McCall 2744 
        let mark = if b.current {
2745 
            ui::ok(ui::glyph("●", "*"))
2746 
        } else {
2747 
            ui::dim(ui::glyph("○", "o"))
2748 
        };
7b9809e6 Andy McCall ↶ 2749 
        let mut tail = String::new();
2750 
        if let Some(n) = b.ahead.filter(|n| *n > 0) {
2751 
            tail += &ui::ok(format!(" {}{n}", ui::glyph("↑", "+")));
2752 
        }
2753 
        if let Some(n) = b.behind.filter(|n| *n > 0) {
2754 
            tail += &ui::warn(format!(" {}{n}", ui::glyph("↓", "-")));
2755 
        }
42ccf504 Andy McCall ↶ 2756 
        // Which remote, when there is a choice (oxygen#83).
2757 
        if !tail.is_empty() && repo.config.remotes.len() > 1 {
2758 
            if let Some(r) = &b.remote {
2759 
                tail += &ui::dim(format!(" {r}"));
2760 
            }
2761 
        }
bf3a6781 Andy McCall ↶ 2762 
        let shown = heads_newest_first(&repo, &b.heads);
2763 
        // The newest head's subject, so a busy bookmark shows its latest work.
2764 
        let head = match shown.first() {
2765 
            Some(_) if verbose => String::new(),
2766 
            Some((_, m)) if b.heads.len() > 1 => format!(
2767 
                "{} {}",
2768 
                ui::dim("newest"),
2769 
                ui::subject(subject_of(&m.message))
2770 
            ),
2771 
            Some((_, m)) => ui::subject(subject_of(&m.message)),
2772 
            None => ui::dim("(empty)"),
2773 
        };
2774 
        let head = if head.is_empty() {
2775 
            head
2776 
        } else {
2777 
            format!("  {head}")
2778 
        };
75167672 Andy McCall 2779 
        println!(
bf3a6781 Andy McCall ↶ 2780 
            "{mark} {}{}{}{tail}{head}",
75167672 Andy McCall 2781 
            ui::bookmark(&b.name),
14edbaaf Andy McCall ↶ 2782 
            ui::sep(),
2783 
            ui::dim(plural(b.heads.len(), "head"))
2784 
        );
bf3a6781 Andy McCall ↶ 2785 
        if verbose {
2786 
            for (h, m) in &shown {
2787 
                print_head(&repo, "    ", h, m);
2788 
            }
2789 
        }
14edbaaf Andy McCall ↶ 2790 
    }
2791 
    if remote_only.is_empty() {
2792 
        return Ok(0);
2793 
    }
2794 
    if !all {
2795 
        println!(
2796 
            "{}",
2797 
            ui::dim(format!(
2798 
                "  and {} only on a remote: oxy bookmark list --all",
2799 
                plural(remote_only.len(), "bookmark")
2800 
            ))
2801 
        );
2802 
        return Ok(0);
2803 
    }
2804 
    for b in &remote_only {
2805 
        println!(
2806 
            "{} {}{}{}",
2807 
            ui::dim(ui::glyph("◌", ".")),
2808 
            ui::dim(format!("{}/{}", b.remote, b.name)),
75167672 Andy McCall 2809 
            ui::sep(),
2810 
            ui::dim(plural(b.heads.len(), "head"))
2811 
        );
7b9809e6 Andy McCall ↶ 2812 
    }
14edbaaf Andy McCall ↶ 2813 
    println!(
2814 
        "  {} {}",
2815 
        ui::note(),
2816 
        ui::dim("oxy bookmark switch NAME makes a local bookmark from a remote's")
2817 
    );
7b9809e6 Andy McCall ↶ 2818 
    Ok(0)
2819 
}
2820
61e3bce7 Andy McCall ↶ 2821 
pub fn bookmark_switch(name: &str, discard: bool, carry: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2822 
    let mut repo = open()?;
4fe7d604 Andy McCall ↶ 2823 
    let from = repo.config.bookmark.clone();
14edbaaf Andy McCall ↶ 2824 
    let (local, created_from) = repo.local_bookmark_for(name)?;
2825 
    if let Some(remote) = created_from {
2826 
        println!(
2827 
            "{} {} from {}",
2828 
            ui::done("Created"),
2829 
            ui::bookmark(&local),
2830 
            ui::dim(format!("{remote}/{local}"))
2831 
        );
2832 
    }
2833 
    let name = local.as_str();
72484195 Andy McCall ↶ 2834 
    // Only behind its remote: take the remote's state, so the switch does
2835 
    // not check out a stale one (oxygen#74).
2836 
    if let Some(n) = repo.catch_up_bookmark(name)? {
2837 
        println!(
2838 
            "{} {} with {}: {} it lacked",
2839 
            ui::done("Caught up"),
2840 
            ui::bookmark(name),
2841 
            ui::dim(format!("{}/{name}", repo.default_remote())),
2842 
            plural(n, "change")
2843 
        );
2844 
    }
7b9809e6 Andy McCall ↶ 2845 
    let sp = ui::spinner(&format!("Switching to {name}…"));
61e3bce7 Andy McCall ↶ 2846 
    let (r, carried) = if carry {
2847 
        repo.bookmark_switch_carry(name)?
2848 
    } else {
2849 
        (repo.bookmark_switch(name, discard)?, vec![])
2850 
    };
75167672 Andy McCall 2851 
    sp.done(&format!(
61e3bce7 Andy McCall ↶ 2852 
        "{} to {}: {} written, {} removed{}",
75167672 Andy McCall 2853 
        ui::done("Switched"),
2854 
        ui::bookmark(name),
2855 
        plural(r.written, "file"),
61e3bce7 Andy McCall ↶ 2856 
        r.removed,
2857 
        if carried.is_empty() {
2858 
            String::new()
2859 
        } else {
2860 
            format!("; carried {}", plural(carried.len(), "changed path"))
2861 
        }
75167672 Andy McCall 2862 
    ));
9b723f69 Andy McCall ↶ 2863 
    print_removed(&r);
44f1ebe7 Andy McCall ↶ 2864 
    print_carried(&carried);
7b9809e6 Andy McCall ↶ 2865 
    if r.conflicted {
75167672 Andy McCall 2866 
        println!(
2867 
            "  {} {}",
2868 
            ui::caution(),
2869 
            ui::warn("this state has conflicts; see oxy status")
2870 
        );
4fe7d604 Andy McCall ↶ 2871 
    }
2872 
    // Say when the new state leaves out work the old one had: a state is
2873 
    // its heads and what they depend on, which can be far less than a Git
2874 
    // user expects.
d3cd7ef9 Andy McCall ↶ 2875 
    if r.lacks > 0 {
2876 
        println!(
2877 
            "  {} {}",
2878 
            ui::note(),
2879 
            ui::dim(format!(
2880 
                "{name} lacks {} that {from} has",
2881 
                plural(r.lacks, "change")
2882 
            ))
2883 
        );
7b9809e6 Andy McCall ↶ 2884 
    }
14edbaaf Andy McCall ↶ 2885 
    super::sync::subrepos_behind(&repo);
98a1620a Andy McCall ↶ 2886 
    where_now(&repo);
7b9809e6 Andy McCall ↶ 2887 
    Ok(0)
2888 
}
2889
2890 
pub fn merge(bookmark: &str) -> Result<i32> {
2891 
    let repo = open()?;
2892 
    let sp = ui::spinner(&format!("Merging {bookmark}…"));
2893 
    let r = repo.merge(bookmark)?;
2894 
    if !r.changed {
75167672 Andy McCall 2895 
        sp.done(&format!(
2896 
            "{} {}",
2897 
            ui::ok(ui::glyph("✔", "*")),
2898 
            ui::dim(format!(
2899 
                "{} already contains {bookmark}",
2900 
                repo.config.bookmark
2901 
            ))
2902 
        ));
7b9809e6 Andy McCall ↶ 2903 
        return Ok(0);
2904 
    }
2905 
    sp.done(&format!(
2906 
        "{} {} into {}: now {}{}",
2907 
        ui::done("Merged"),
2908 
        ui::bookmark(bookmark),
2909 
        ui::bookmark(&repo.config.bookmark),
2910 
        plural(r.heads.len(), "head"),
75167672 Andy McCall 2911 
        ui::dim(if r.checked_out {
2912 
            "; working copy updated"
2913 
        } else {
2914 
            "; run oxy checkout to update the working copy"
2915 
        })
7b9809e6 Andy McCall ↶ 2916 
    ));
2917 
    let snap = repo.snapshot("oxy merge")?;
2918 
    if snap.base_snapshot.is_conflicted() {
75167672 Andy McCall 2919 
        println!(
2920 
            "  {} {}",
2921 
            ui::caution(),
2922 
            ui::warn("the result has conflicts; see oxy status")
2923 
        );
7b9809e6 Andy McCall ↶ 2924 
    }
98a1620a Andy McCall ↶ 2925 
    where_now(&repo);
7b9809e6 Andy McCall ↶ 2926 
    Ok(0)
2927 
}
2928
728da0f9 Andy McCall ↶ 2929 
pub fn squash(change: &str, into: &str) -> Result<i32> {
2930 
    let repo = open()?;
2931 
    let c = repo.resolve_change(change)?;
2932 
    let d = repo.resolve_change(into)?;
2933 
    let sp = ui::spinner("Squashing…");
2934 
    let h = repo.squash(&c, &d)?;
631fc897 Andy McCall ↶ 2935 
    let new = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 2936 
    sp.done(&format!(
2937 
        "{} into {} {}  {}",
2938 
        ui::done("Squashed"),
631fc897 Andy McCall ↶ 2939 
        ui::id(new.change_id.short(8)),
75167672 Andy McCall 2940 
        ui::hash(format!("#{}", h.short(12))),
2941 
        ui::subject(subject_of(&new.message))
2942 
    ));
728da0f9 Andy McCall ↶ 2943 
    Ok(0)
2944 
}
2945
e266b7d4 Andy McCall ↶ 2946 
pub fn rebase(change: &str, onto: &[String], into_working_copy: bool) -> Result<i32> {
728da0f9 Andy McCall ↶ 2947 
    let repo = open()?;
2948 
    let c = repo.resolve_change(change)?;
2949 
    let mut heads = Vec::new();
2950 
    for o in onto {
2951 
        heads.extend(repo.resolve_heads(o)?);
2952 
    }
2953 
    let sp = ui::spinner("Rebasing…");
e266b7d4 Andy McCall ↶ 2954 
    let h = match repo.rebase(&c, &heads) {
2955 
        Err(oxy_core::repo::RepoError::Conflicted(_)) if into_working_copy => {
2956 
            let r = repo.rebase_into_working_copy(&c, &heads)?;
2957 
            sp.done(&format!(
2958 
                "{} {} into {}: now {}",
2959 
                ui::done("Merged"),
2960 
                onto.join(" "),
2961 
                ui::bookmark(&repo.config.bookmark),
2962 
                plural(r.heads.len(), "head"),
2963 
            ));
2964 
            if r.checked_out {
2965 
                println!(
2966 
                    "  {} {}",
2967 
                    ui::caution(),
2968 
                    ui::warn("the conflict is in the working copy: fix the marked files (see oxy status), then oxy commit")
2969 
                );
2970 
            } else {
2971 
                println!(
2972 
                    "  {} {}",
2973 
                    ui::caution(),
2974 
                    ui::warn("the working copy has changes of its own: commit or discard them, then oxy checkout to take the conflict in")
2975 
                );
2976 
            }
98a1620a Andy McCall ↶ 2977 
            where_now(&repo);
e266b7d4 Andy McCall ↶ 2978 
            return Ok(0);
2979 
        }
2980 
        other => other?,
2981 
    };
631fc897 Andy McCall ↶ 2982 
    let new = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 2983 
    sp.done(&format!(
2984 
        "{} {} {}  {}",
2985 
        ui::done("Rebased"),
631fc897 Andy McCall ↶ 2986 
        ui::id(new.change_id.short(8)),
75167672 Andy McCall 2987 
        ui::hash(format!("#{}", h.short(12))),
2988 
        ui::dim(format!(
2989 
            "now depends on {}",
2990 
            plural(new.deps.len(), "change")
2991 
        ))
2992 
    ));
98a1620a Andy McCall ↶ 2993 
    where_now(&repo);
728da0f9 Andy McCall ↶ 2994 
    Ok(0)
79b5a90f Andy McCall ↶ 2995 
}
2996
2997 
#[cfg(test)]
2998 
mod tests {
2999 
    use super::*;
3000
3001 
    #[test]
3002 
    fn id_prefixes_agree_with_the_whole_list() {
3003 
        // Ids that share long prefixes, and some that differ only in a
3004 
        // half byte, from a fixed sequence.
3005 
        let mut x: u64 = 0x9e37_79b9_7f4a_7c15;
3006 
        let mut next = || {
3007 
            x ^= x << 13;
3008 
            x ^= x >> 7;
3009 
            x ^= x << 17;
3010 
            x
3011 
        };
3012 
        let mut ids: Vec<[u8; 16]> = Vec::new();
3013 
        for _ in 0..2000 {
3014 
            let mut id = [0u8; 16];
3015 
            id[..8].copy_from_slice(&next().to_le_bytes());
3016 
            id[8..].copy_from_slice(&next().to_le_bytes());
3017 
            let share = (next() % 4) as usize;
3018 
            if let Some(prev) = ids.last() {
3019 
                id[..share].copy_from_slice(&prev[..share]);
3020 
                if next() % 2 == 0 {
3021 
                    id[share] = (prev[share] & 0xf0) | (id[share] & 0x0f);
3022 
                }
3023 
            }
3024 
            ids.push(id);
3025 
        }
3026 
        let hex = |id: &[u8; 16]| oxy_core::ids::ChangeId(*id).to_hex();
3027 
        let whole = unique_prefixes(ids.iter().map(hex));
3028 
        let some = id_prefixes(ids.clone(), ids.iter().copied());
3029 
        for id in &ids {
3030 
            assert_eq!(some[id], whole[&hex(id)], "{}", hex(id));
3031 
        }
3032 
    }
728da0f9 Andy McCall ↶ 3033 
}