OXYGENHUB
# d3b270909c78 oxygen / src / cli / workspace.rs
93.5 KiB · Rust · last changed Readers never wait: one head per handle, retry on a miss, retire before deleting 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"),
23 
        if bare { "bare " } else { "" },
24 
        ui::path(repo.root().display())
25 
    );
26 
    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 {
31 
        println!(
32 
            "{}",
33 
            ui::kv(
34 
                "store",
35 
                format!(
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                    "{url} (cache in {}, up to {} MiB)",
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                    ui::path(repo.root().join(".oxy/cache").display()),
38 
                    repo.config.storage_cache >> 20
39 
                )
40 
            )
41 
        );
42 
    }
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    println!(
44 
        "{}",
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        ui::kv(
46 
            "author",
47 
            format!(
48 
                "{} <{}>",
49 
                ui::author(&repo.config.author_name),
50 
                repo.config.author_email
51 
            )
52 
        )
53 
    );
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    Ok(0)
55 
}
56
57 
fn status_tag(s: ChangeStatus) -> &'static str {
58 
    match s {
59 
        ChangeStatus::Added => "A",
60 
        ChangeStatus::Modified => "M",
61 
        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 
}
68
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/// New untracked files left out of the snapshot for their size (oxygen#98):
70 
/// 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, \
97 
             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
104 
/// 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()
120 
    };
121 
    println!(
122 
        "  {} {}",
123 
        lead,
124 
        ui::dim(format!(
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            "removed from disk (the bookmark does not have them): {names}{tail}"
126 
        ))
127 
    );
128 
}
129
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/// Folders holding a repository of their own, which oxy leaves out (oxygen#43):
131 
/// named, with how to track them.
132 
fn print_untracked_nested(repo: &Repo, nested: &[String]) {
133 
    if nested.is_empty() {
134 
        return;
135 
    }
136 
    println!();
137 
    println!(
138 
        "{} {}",
139 
        ui::section(ui::warn("Not tracked")),
140 
        ui::dim("folders holding a repository of their own")
141 
    );
142 
    for p in nested {
143 
        let kind = if repo.root().join(p).join(".git").exists() {
144 
            "Git"
145 
        } else {
146 
            "Oxygen"
147 
        };
148 
        println!(
149 
            "  {} {}  {}",
150 
            ui::caution(),
151 
            ui::path(format!("{p}/")),
152 
            ui::dim(format!("a nested {kind} repository"))
153 
        );
154 
    }
155 
    println!(
156 
        "  {} {}",
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        ui::note(),
158 
        ui::dim(
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            "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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        )
162 
    );
163 
}
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/// The working copy's changed paths, or that it is clean.
166 
fn print_statuses(statuses: &[oxy_core::repo::PathStatus]) {
167 
    if statuses.is_empty() {
168 
        println!(
169 
            "  {} {}",
170 
            ui::ok(ui::glyph("✔", "*")),
171 
            ui::dim("nothing to commit, working copy clean")
172 
        );
173 
        return;
174 
    }
175 
    println!();
176 
    for s in statuses {
177 
        println!(
178 
            "  {} {}",
179 
            ui::status_mark(status_tag(s.status)),
180 
            ui::path(&s.path)
181 
        );
182 
    }
183 
}
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/// Say when the working copy has fallen behind its own bookmark: a
186 
/// "clean" status there hid a pull that left it on old code (oxygen#89).
187 
fn print_behind(repo: &Repo) {
188 
    if let Ok(Some(n)) = repo.working_copy_behind() {
189 
        println!(
190 
            "  {} {}",
191 
            ui::caution(),
192 
            ui::warn(format!(
193 
                "the working copy is behind {}: it lacks {} the bookmark has; oxy checkout brings it up",
194 
                repo.config.bookmark,
195 
                plural(n, "change")
196 
            ))
197 
        );
198 
    }
199 
}
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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,
204 
    // #41): a clean working copy, or one as the last snapshot left it.
205 
    let known = if json {
206 
        None
207 
    } else {
208 
        repo.status_by_manifest()?
209 
    };
210 
    if let Some(statuses) = known {
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        let (_, wc) = repo.working_copy()?;
212 
        let heads = repo.bookmark_heads()?;
213 
        println!(
214 
            "{} {}{}working copy {}{}{}",
215 
            ui::dim("On"),
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            ui::bookmark(&repo.config.bookmark),
217 
            ui::sep(),
218 
            ui::id(wc.change_id.short(8)),
219 
            ui::sep(),
220 
            ui::dim(plural(heads.len(), "head"))
221 
        );
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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);
227 
    }
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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 = {
231 
        let _t = oxy_core::timing::phase("status: heads");
232 
        repo.bookmark_heads()?
233 
    };
234 
    let _drop = oxy_core::timing::phase("status: print and drop");
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    sp.clear();
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    if json {
237 
        println!("{}", repo.status_json(&snap)?);
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        return Ok(if snap.base_snapshot.is_conflicted() {
239 
            2
240 
        } else {
241 
            0
242 
        });
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    }
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    println!(
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        "{} {}{}working copy {}{}{}",
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        ui::dim("On"),
247 
        ui::bookmark(&repo.config.bookmark),
248 
        ui::sep(),
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        ui::id(snap.wc.change_id.short(8)),
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        ui::sep(),
251 
        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() {
258 
        return Ok(0);
259 
    }
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    println!();
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    println!(
262 
        "{} {}",
263 
        ui::section(ui::err("Conflicts")),
264 
        ui::dim("edit the marked files, or the .oxy-conflict-N candidates, then commit")
265 
    );
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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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    }
269 
    for (p, f) in &snap.base_snapshot.files {
270 
        if f.is_conflicted() {
75167672 Andy McCall 271 
            let state = match snap
272 
                .statuses
273 
                .iter()
274 
                .find(|s| s.path == *p)
275 
                .map(|s| s.status)
276 
            {
277 
                Some(ChangeStatus::Resolved) => {
278 
                    ui::ok(format!("{} resolved in working copy", ui::glyph("✔", "*")))
279 
                }
280 
                Some(ChangeStatus::ConflictEdited) => {
281 
                    ui::warn(format!("{} markers remain", ui::glyph("‼", "!")))
282 
                }
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                _ => ui::err(format!("{} unresolved", ui::glyph("✱", "!"))),
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            };
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            println!("  {}  {state}", ui::path(p));
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        }
287 
    }
288 
    Ok(2)
289 
}
290
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pub fn commit(
292 
    message: &str,
293 
    depends_on: &[String],
294 
    paths: &[String],
295 
    interactive: bool,
296 
    hunks: &[usize],
297 
) -> Result<i32> {
fce44ae9 Andy McCall ↶ 298 
    let repo = open()?;
299 
    let mut deps = Vec::new();
300 
    for d in depends_on {
301 
        deps.push(repo.resolve_change(d)?);
302 
    }
c6aa5bd9 Andy McCall ↶ 303 
    let selection = if !hunks.is_empty() {
304 
        oxy_core::repo::Selection::Hunks(hunks.to_vec())
305 
    } else if interactive {
957fee30 Andy McCall ↶ 306 
        let (_, hunks) = repo.hunks()?;
307 
        if hunks.is_empty() {
308 
            anyhow::bail!("nothing to commit: the working copy matches its base");
309 
        }
75167672 Andy McCall 310 
        let hunks: Vec<_> = hunks
311 
            .into_iter()
312 
            .filter(|h| {
313 
                paths.is_empty()
314 
                    || paths.iter().any(|p| {
315 
                        h.path == *p || h.path.starts_with(&format!("{}/", p.trim_end_matches('/')))
316 
                    })
317 
            })
318 
            .collect();
957fee30 Andy McCall ↶ 319 
        let mut chosen = Vec::new();
320 
        let stdin = std::io::stdin();
321 
        let mut take_rest = false;
322 
        for (n, h) in hunks.iter().enumerate() {
323 
            if take_rest {
324 
                chosen.push(h.index);
325 
                continue;
326 
            }
75167672 Andy McCall 327 
            println!(
328 
                "{} {} {}",
329 
                ui::section(format!("hunk {} of {}", n + 1, hunks.len())),
330 
                ui::path(&h.path),
331 
                ui::dim(format!("(#{})", h.index))
332 
            );
957fee30 Andy McCall ↶ 333 
            for line in h.text.lines() {
75167672 Andy McCall 334 
                let styled = if line.starts_with('+') {
335 
                    ui::ok(line)
336 
                } else if line.starts_with('-') {
337 
                    ui::err(line)
338 
                } else {
339 
                    ui::dim(line)
340 
                };
957fee30 Andy McCall ↶ 341 
                println!("  {styled}");
342 
            }
343 
            loop {
75167672 Andy McCall 344 
                print!(
345 
                    "{} ",
346 
                    ui::warn("Commit this hunk? [y]es [n]o [a]ll remaining [q]uit:")
347 
                );
957fee30 Andy McCall ↶ 348 
                use std::io::Write as _;
349 
                std::io::stdout().flush()?;
350 
                let mut answer = String::new();
351 
                if stdin.read_line(&mut answer)? == 0 {
352 
                    anyhow::bail!("aborted");
353 
                }
354 
                match answer.trim() {
355 
                    "y" | "Y" => {
356 
                        chosen.push(h.index);
357 
                        break;
358 
                    }
359 
                    "n" | "N" | "" => break,
360 
                    "a" | "A" => {
361 
                        chosen.push(h.index);
362 
                        take_rest = true;
363 
                        break;
364 
                    }
365 
                    "q" | "Q" => anyhow::bail!("aborted; nothing committed"),
366 
                    _ => continue,
367 
                }
368 
            }
369 
        }
370 
        if chosen.is_empty() {
371 
            anyhow::bail!("no hunks chosen; nothing committed");
372 
        }
373 
        oxy_core::repo::Selection::Hunks(chosen)
374 
    } else if paths.is_empty() {
375 
        oxy_core::repo::Selection::All
376 
    } else {
377 
        oxy_core::repo::Selection::Paths(paths.to_vec())
378 
    };
135212de Andy McCall ↶ 379 
    let sp = ui::spinner("Committing…");
75051941 Andy McCall ↶ 380 
    let (h, partial) = repo.commit_selection_partial(message, &deps, &selection)?;
5b4c5130 Andy McCall ↶ 381 
    // The metadata only: a first commit's change holds the whole tree.
382 
    let meta = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 383 
    sp.done(&format!(
384 
        "{} {} {}  {}",
385 
        ui::done("Committed"),
5b4c5130 Andy McCall ↶ 386 
        ui::id(meta.change_id.short(8)),
75167672 Andy McCall 387 
        ui::hash(format!("#{}", h.short(12))),
388 
        ui::subject(subject_of(message))
389 
    ));
d4dbab97 Andy McCall ↶ 390 
    print_untracked_nested(&repo, &repo.untracked_nested());
b689779e Andy McCall ↶ 391 
    print_skipped_large(&repo);
75051941 Andy McCall ↶ 392 
    // Only a commit that took part of the working copy leaves anything.
393 
    if partial {
8ab265dc Andy McCall ↶ 394 
        let rest = repo.snapshot_status("oxy commit")?;
957fee30 Andy McCall ↶ 395 
        if !rest.statuses.is_empty() {
75167672 Andy McCall 396 
            println!(
397 
                "  {} {}",
398 
                ui::note(),
399 
                ui::dim(format!(
400 
                    "{} left uncommitted",
401 
                    plural(rest.statuses.len(), "path")
402 
                ))
403 
            );
957fee30 Andy McCall ↶ 404 
        }
405 
    }
98a1620a Andy McCall ↶ 406 
    where_now(&repo);
957fee30 Andy McCall ↶ 407 
    Ok(0)
408 
}
409
410 
pub fn blame(path: &str, json: bool) -> Result<i32> {
411 
    let repo = open()?;
412 
    let lines = repo.blame(path)?;
413 
    if json {
414 
        let items = lines.iter().map(|l| {
415 
            format!(
416 
                "{{\"line\":{},\"change_id\":{},\"hash\":{},\"index\":{},\"author\":{},\"when_ms\":{}}}",
417 
                l.line,
418 
                oxy_core::repo::json_str(&l.change_id.to_hex()),
419 
                oxy_core::repo::json_str(&l.hash.to_hex()),
420 
                l.index,
421 
                oxy_core::repo::json_str(&l.author),
422 
                l.when_ms
423 
            )
424 
        });
425 
        println!("{}", oxy_core::repo::json_array(items));
426 
        return Ok(0);
427 
    }
75167672 Andy McCall 428 
    let width = lines
429 
        .iter()
430 
        .map(|l| l.author.chars().count())
431 
        .max()
432 
        .unwrap_or(0)
433 
        .min(20);
957fee30 Andy McCall ↶ 434 
    let digits = lines.len().to_string().len();
fddf64ba Andy McCall ↶ 435 
    let _t = oxy_core::timing::phase("blame: print");
436 
    // Most lines share their change with many others: each change's id,
437 
    // author and age are formatted once, and the lines go out through one
438 
    // buffered lock on stdout.
439 
    let mut prefix: std::collections::HashMap<oxy_core::hash::ChangeHash, String> =
440 
        std::collections::HashMap::new();
441 
    let bar = ui::dim(ui::glyph("│", "|"));
442 
    let mut out = std::io::BufWriter::with_capacity(1 << 16, std::io::stdout().lock());
957fee30 Andy McCall ↶ 443 
    for l in &lines {
fddf64ba Andy McCall ↶ 444 
        let p = prefix.entry(l.hash).or_insert_with(|| {
445 
            let author: String = l.author.chars().take(20).collect();
446 
            format!(
447 
                "{} {} {}",
448 
                ui::id(l.change_id.short(8)),
449 
                ui::author(format!("{author:<width$}")),
450 
                ui::dim(ui::ago(l.when_ms))
451 
            )
452 
        });
957fee30 Andy McCall ↶ 453 
        let text = String::from_utf8_lossy(&l.text);
fddf64ba Andy McCall ↶ 454 
        if writeln!(
455 
            out,
456 
            "{p} {:>digits$}{bar} {}",
957fee30 Andy McCall ↶ 457 
            l.line,
458 
            text.trim_end_matches('\n')
fddf64ba Andy McCall ↶ 459 
        )
460 
        .is_err()
461 
        {
462 
            // A closed pipe (blame | head): stop quietly.
463 
            return Ok(0);
464 
        }
957fee30 Andy McCall ↶ 465 
    }
fddf64ba Andy McCall ↶ 466 
    let _ = out.flush();
957fee30 Andy McCall ↶ 467 
    Ok(0)
468 
}
469
470 
fn bisect_report(repo: &Repo, step: &oxy_core::repo::BisectStep) -> Result<i32> {
471 
    use oxy_core::repo::BisectStep::*;
472 
    match step {
473 
        NeedMarks { good, bad } => {
75167672 Andy McCall 474 
            println!(
475 
                "{} {} {}",
476 
                ui::note(),
477 
                ui::dim(format!("{good} good, {bad} bad;")),
478 
                ui::dim(if *good == 0 {
479 
                    "mark a known-good change or bookmark: oxy bisect good CHANGE"
480 
                } else {
481 
                    "mark a known-bad change or bookmark: oxy bisect bad CHANGE"
482 
                })
483 
            );
957fee30 Andy McCall ↶ 484 
            Ok(0)
485 
        }
75167672 Andy McCall 486 
        Testing {
487 
            heads,
488 
            remaining,
489 
            steps_left,
490 
        } => {
491 
            println!(
492 
                "{} {} {}",
493 
                ui::done("Testing"),
494 
                ui::dim(format!(
495 
                    "{} in the state under test;",
496 
                    plural(heads.len(), "head")
497 
                )),
498 
                ui::dim(format!(
499 
                    "{remaining} candidates left, about {steps_left} more steps"
500 
                ))
501 
            );
502 
            println!(
503 
                "  {} {}",
504 
                ui::note(),
505 
                ui::dim("run your test, then oxy bisect good | bad | skip")
506 
            );
957fee30 Andy McCall ↶ 507 
            Ok(0)
508 
        }
509 
        Found { culprit } => {
510 
            let c = repo.store().get_change(culprit)?;
75167672 Andy McCall 511 
            println!(
512 
                "{} {} {}  {}",
513 
                ui::done("Found"),
514 
                ui::id(short_id(&c)),
515 
                ui::hash(format!("#{}", culprit.short(12))),
516 
                ui::subject(subject_of(&c.message))
517 
            );
957fee30 Andy McCall ↶ 518 
            println!("  {} {}", ui::note(), ui::dim("the first change whose inclusion makes the state bad; oxy bisect reset to return"));
519 
            Ok(0)
520 
        }
521 
        Inconclusive { candidates } => {
75167672 Andy McCall 522 
            println!(
523 
                "{} {}",
524 
                ui::caution(),
525 
                ui::warn(format!(
526 
                    "every remaining candidate was skipped ({}); oxy bisect reset to return",
527 
                    plural(candidates.len(), "change")
528 
                ))
529 
            );
957fee30 Andy McCall ↶ 530 
            Ok(1)
531 
        }
532 
    }
533 
}
534
535 
pub fn bisect_start() -> Result<i32> {
536 
    let repo = open()?;
537 
    repo.bisect_start()?;
75167672 Andy McCall 538 
    println!(
539 
        "{} bisect; {}",
540 
        ui::done("Started"),
541 
        ui::dim("now: oxy bisect good CHANGE and oxy bisect bad CHANGE")
542 
    );
957fee30 Andy McCall ↶ 543 
    Ok(0)
544 
}
545
546 
pub fn bisect_mark(good: Option<bool>, changes: &[String]) -> Result<i32> {
547 
    let repo = open()?;
548 
    let mut heads = Vec::new();
549 
    for c in changes {
550 
        heads.extend(repo.resolve_heads(c)?);
551 
    }
552 
    let step = repo.bisect_mark(good, &heads)?;
553 
    bisect_report(&repo, &step)
554 
}
555
556 
pub fn bisect_run(command: &[String]) -> Result<i32> {
557 
    let repo = open()?;
558 
    let step = repo.bisect_run(command)?;
559 
    bisect_report(&repo, &step)
560 
}
561
c6aa5bd9 Andy McCall ↶ 562 
pub fn bisect_status(as_json: bool) -> Result<i32> {
957fee30 Andy McCall ↶ 563 
    let repo = open()?;
c6aa5bd9 Andy McCall ↶ 564 
    if as_json {
565 
        use oxy_core::repo::BisectStep::*;
566 
        let v = match repo.bisect_status()? {
567 
            None => "null".to_string(),
75167672 Andy McCall 568 
            Some(NeedMarks { good, bad }) => json::obj([
569 
                ("state", json::s("need-marks")),
570 
                ("good", json::n(good)),
571 
                ("bad", json::n(bad)),
572 
            ]),
573 
            Some(Testing {
574 
                heads,
575 
                remaining,
576 
                steps_left,
577 
            }) => json::obj([
578 
                ("state", json::s("testing")),
579 
                ("heads", json::hashes(&heads)),
580 
                ("remaining", json::n(remaining)),
581 
                ("steps_left", json::n(steps_left)),
582 
            ]),
583 
            Some(Found { culprit }) => json::obj([
584 
                ("state", json::s("found")),
585 
                ("culprit", json::s(&culprit.to_hex())),
586 
            ]),
587 
            Some(Inconclusive { candidates }) => json::obj([
588 
                ("state", json::s("inconclusive")),
589 
                ("candidates", json::hashes(&candidates)),
590 
            ]),
c6aa5bd9 Andy McCall ↶ 591 
        };
592 
        println!("{v}");
593 
        return Ok(0);
594 
    }
957fee30 Andy McCall ↶ 595 
    match repo.bisect_status()? {
596 
        None => {
597 
            println!("{}", ui::dim("No bisect in progress."));
598 
            Ok(0)
599 
        }
600 
        Some(step) => bisect_report(&repo, &step),
601 
    }
602 
}
603
604 
pub fn bisect_reset() -> Result<i32> {
605 
    let repo = open()?;
606 
    repo.bisect_reset()?;
607 
    println!("{} bisect; working copy restored", ui::done("Reset"));
fce44ae9 Andy McCall ↶ 608 
    Ok(0)
609 
}
610
94084087 Andy McCall ↶ 611 
/// The log: one entry per change, newest first, joined by a rail. The
612 
/// default view is the subject and a metadata line; `verbose` adds the full
613 
/// message, dependencies, and the authenticating key.
c6aa5bd9 Andy McCall ↶ 614 
fn signature_json(repo: &Repo, h: &oxy_core::hash::ChangeHash) -> Result<String> {
615 
    Ok(match repo.authenticate_change(h)? {
616 
        SignatureStatus::Unsigned => json::obj([("status", json::s("unsigned"))]),
75167672 Andy McCall 617 
        SignatureStatus::Valid {
618 
            key,
619 
            name,
620 
            email,
621 
            sealed,
622 
            revoked,
623 
        } => json::obj([
c6aa5bd9 Andy McCall ↶ 624 
            ("status", json::s(if sealed { "sealed" } else { "signed" })),
625 
            ("key", json::s(&key.to_hex())),
626 
            ("name", json::s(&name)),
627 
            ("email", json::s(&email)),
628 
            ("revoked", json::b(revoked)),
629 
        ]),
75167672 Andy McCall 630 
        SignatureStatus::Invalid(why) => {
631 
            json::obj([("status", json::s("invalid")), ("reason", json::s(&why))])
632 
        }
c6aa5bd9 Andy McCall ↶ 633 
    })
634 
}
635
636 
fn log_entry_json(repo: &Repo, e: &oxy_core::repo::LogEntry) -> Result<String> {
637 
    let c = &e.change;
638 
    Ok(json::obj([
639 
        ("hash", json::s(&e.hash.to_hex())),
640 
        ("change_id", json::s(&c.change_id.to_hex())),
641 
        ("author", json::s(&author_name(repo, c))),
642 
        ("author_key", json::s(&c.author.to_hex())),
5cde7882 Andy McCall ↶ 643 
        (
644 
            "via",
645 
            match via(
646 
                repo,
647 
                &repo.authenticate_change_known(&e.hash, Some(c))?,
648 
                &c.author,
649 
            ) {
650 
                Some(v) => json::obj([
651 
                    ("name", json::s(&v.name)),
652 
                    ("email", json::s(&v.email)),
653 
                    ("key", json::s(&v.key.to_hex())),
654 
                    ("scope", json::opt(v.scope.as_deref(), json::s)),
655 
                    ("expires_ms", json::opt(v.expires, json::n)),
656 
                    ("revoked", json::b(v.revoked)),
657 
                ]),
658 
                None => "null".to_string(),
659 
            },
660 
        ),
c6aa5bd9 Andy McCall ↶ 661 
        ("when_ms", json::n(c.hlc.wall_ms)),
662 
        ("message", json::s(&c.message)),
663 
        ("kind", json::s(&format!("{:?}", c.kind).to_lowercase())),
664 
        ("deps", json::hashes(&c.deps)),
665 
        ("head", json::b(e.is_head)),
666 
        ("working_copy", json::b(e.is_working_copy)),
75167672 Andy McCall 667 
        (
668 
            "signature",
669 
            if e.is_working_copy {
670 
                "null".into()
671 
            } else {
672 
                signature_json(repo, &e.hash)?
673 
            },
674 
        ),
c6aa5bd9 Andy McCall ↶ 675 
    ]))
676 
}
677
83d61e80 Andy McCall ↶ 678 
/// `START,END:PATH` for `oxy log -L`.
679 
fn parse_line_range(spec: &str) -> Result<(usize, usize, &str)> {
680 
    let bad = || anyhow::anyhow!("-L {spec}: expected START,END:PATH, as 10,24:src/lib.rs");
681 
    let (range, path) = spec.split_once(':').ok_or_else(bad)?;
682 
    let (a, b) = range.split_once(',').ok_or_else(bad)?;
683 
    Ok((
684 
        a.trim().parse().map_err(|_| bad())?,
685 
        b.trim().parse().map_err(|_| bad())?,
686 
        path,
687 
    ))
688 
}
689
690 
pub fn log(
47ce8b8e Andy McCall ↶ 691 
    revset: Option<&str>,
83d61e80 Andy McCall ↶ 692 
    limit: Option<usize>,
693 
    verbose: bool,
694 
    path: Option<&str>,
695 
    lines: Option<&str>,
696 
    as_json: bool,
697 
) -> Result<i32> {
fce44ae9 Andy McCall ↶ 698 
    let repo = open()?;
69816d68 Andy McCall ↶ 699 
    // Whether the working copy is clean and conflicted: from the manifest
700 
    // when it proves the working copy clean, else from a snapshot.
33472ccc Andy McCall ↶ 701 
    // The working copy as last recorded, without looking at the files (as
702 
    // Git's log does not): whether its change holds edits, and whether its
703 
    // base was conflicted. `oxy status` is what checks the disk.
704 
    let conflicted = !repo.is_at_op() && repo.recorded_conflicted()?;
4cce912a Andy McCall ↶ 705 
    let listing = oxy_core::timing::phase("log: entries");
83d61e80 Andy McCall ↶ 706 
    let entries = match (path, lines) {
47ce8b8e Andy McCall ↶ 707 
        _ if revset.is_some() => repo.log_revset(revset.unwrap_or_default())?,
83d61e80 Andy McCall ↶ 708 
        (_, Some(spec)) => {
709 
            let (first, last, p) = parse_line_range(spec)?;
69816d68 Andy McCall ↶ 710 
            let (_, wc) = repo.working_copy()?;
711 
            let base = repo.load_state_history(&wc.deps)?.maximal(&wc.deps);
712 
            repo.line_history(&base, p, first, last)?
83d61e80 Andy McCall ↶ 713 
        }
714 
        (Some(p), None) => repo.log_for_path(p)?,
715 
        (None, None) => repo.log()?,
c6aa5bd9 Andy McCall ↶ 716 
    };
4cce912a Andy McCall ↶ 717 
    drop(listing);
718 
    let _print = oxy_core::timing::phase("log: print");
c6aa5bd9 Andy McCall ↶ 719 
    if as_json {
720 
        let shown = limit.unwrap_or(entries.len()).min(entries.len());
721 
        let mut items = Vec::new();
722 
        for e in entries.iter().take(shown) {
723 
            items.push(log_entry_json(&repo, e)?);
724 
        }
75167672 Andy McCall 725 
        println!(
726 
            "{}",
727 
            json::obj([
728 
                ("bookmark", json::s(&repo.config.bookmark)),
729 
                ("total", json::n(entries.len())),
730 
                ("changes", json::arr(items))
731 
            ])
732 
        );
c6aa5bd9 Andy McCall ↶ 733 
        return Ok(0);
734 
    }
94084087 Andy McCall ↶ 735 
    let total = entries.len();
736 
    let shown = limit.unwrap_or(total).min(total);
2bf22305 Andy McCall ↶ 737 
    // Lay out a little past what is shown, so edges into the cut are drawn.
738 
    let window: Vec<(ChangeHash, Vec<ChangeHash>)> = entries
739 
        .iter()
740 
        .take((shown + MAX_EDGE).min(total))
741 
        .map(|e| (e.hash, e.change.deps.clone()))
742 
        .collect();
743 
    let rows = oxy_core::lanes::graph(&window, MAX_EDGE);
744 
    // Highlight the shortest prefix that names each change: against the
745 
    // whole log, which is what `resolve_change` searches.
746 
    let everything;
47ce8b8e Andy McCall ↶ 747 
    let all = if path.is_some() || lines.is_some() || revset.is_some() {
2bf22305 Andy McCall ↶ 748 
        everything = repo.log()?;
749 
        &everything
750 
    } else {
751 
        &entries
752 
    };
79b5a90f Andy McCall ↶ 753 
    let prefixes = oxy_core::timing::phase("log: id prefixes");
754 
    let id_prefix = id_prefixes(
755 
        all.iter().map(|e| e.change.change_id.0).collect(),
756 
        entries.iter().take(shown).map(|e| e.change.change_id.0),
757 
    );
758 
    drop(prefixes);
2bf22305 Andy McCall ↶ 759 
    let labels = reference_labels(&repo)?;
760 
    for (e, row) in entries.iter().take(shown).zip(&rows) {
fce44ae9 Andy McCall ↶ 761 
        let c = &e.change;
75167672 Andy McCall 762 
        let bullet = ui::log_bullet(
763 
            e.is_working_copy,
764 
            e.is_head,
765 
            e.is_working_copy && conflicted,
766 
        );
2bf22305 Andy McCall ↶ 767 
        let id = c.change_id.to_hex();
79b5a90f Andy McCall ↶ 768 
        let n = id_prefix.get(&c.change_id.0).copied().unwrap_or(8).min(8);
2bf22305 Andy McCall ↶ 769 
        let mut head = vec![format!("{}{}", ui::id(&id[..n]), ui::dim(&id[n..8]))];
770 
        head.push(ui::author(author_name(&repo, c)));
771 
        head.push(ui::dim(ui::ago(c.hlc.wall_ms)));
772 
        if let Some(names) = labels.get(&e.hash) {
773 
            head.push(names.join(" "));
fce44ae9 Andy McCall ↶ 774 
        }
94084087 Andy McCall ↶ 775 
        if c.kind == ChangeKind::Resolution {
2bf22305 Andy McCall ↶ 776 
            head.push(ui::warn("resolution"));
fce44ae9 Andy McCall ↶ 777 
        }
2bf22305 Andy McCall ↶ 778 
        if !e.is_working_copy {
779 
            head.push(ui::hash(format!("#{}", e.hash.short(8))));
5cde7882 Andy McCall ↶ 780 
            let status = repo.authenticate_change_known(&e.hash, Some(c))?;
781 
            if let Some(agent) = via(&repo, &status, &c.author) {
782 
                head.push(ui::dim(format!("via {}", agent.name)));
783 
            }
784 
            head.push(signature_mark_of(&status));
2bf22305 Andy McCall ↶ 785 
        }
786 
        println!("{}{}", node_line(row, &bullet), head.join(" "));
94084087 Andy McCall ↶ 787 
        let subject = if e.is_working_copy && c.message.is_empty() {
33472ccc Andy McCall ↶ 788 
            let edited = repo
789 
                .store()
790 
                .get_change(&e.hash)
791 
                .is_ok_and(|w| !w.tree_ops.is_empty() || !w.edits.is_empty());
792 
            ui::dim(if edited {
2bf22305 Andy McCall ↶ 793 
                "(working copy, uncommitted changes)"
33472ccc Andy McCall ↶ 794 
            } else {
795 
                "(working copy)"
75167672 Andy McCall 796 
            })
2bf22305 Andy McCall ↶ 797 
        } else if c.message.trim().is_empty() {
798 
            ui::dim("(no description)")
94084087 Andy McCall ↶ 799 
        } else {
2bf22305 Andy McCall ↶ 800 
            subject_of(&c.message).to_string()
94084087 Andy McCall ↶ 801 
        };
2bf22305 Andy McCall ↶ 802 
        println!("{}{subject}", below_line(row));
94084087 Andy McCall ↶ 803 
        if verbose {
2bf22305 Andy McCall ↶ 804 
            let rail = continuation(row);
94084087 Andy McCall ↶ 805 
            if !e.is_working_copy {
75167672 Andy McCall 806 
                println!(
2bf22305 Andy McCall ↶ 807 
                    "{rail}{}",
75167672 Andy McCall 808 
                    ui::dim(format!(
809 
                        "{} {}",
810 
                        when(c.hlc.wall_ms),
811 
                        signature_line(&repo, &e.hash)?
812 
                    ))
813 
                );
94084087 Andy McCall ↶ 814 
            }
815 
            if !c.deps.is_empty() {
75167672 Andy McCall 816 
                println!(
2bf22305 Andy McCall ↶ 817 
                    "{rail}{} {}",
75167672 Andy McCall 818 
                    ui::dim(ui::glyph("↳", "->")),
819 
                    ui::dim(deps_of(&c.deps))
820 
                );
94084087 Andy McCall ↶ 821 
            }
75167672 Andy McCall 822 
            let body: Vec<&str> = c
823 
                .message
824 
                .lines()
825 
                .skip(1)
826 
                .skip_while(|l| l.trim().is_empty())
827 
                .collect();
2bf22305 Andy McCall ↶ 828 
            for line in body {
829 
                println!("{rail}  {line}");
94084087 Andy McCall ↶ 830 
            }
fce44ae9 Andy McCall ↶ 831 
        }
832 
    }
94084087 Andy McCall ↶ 833 
    if shown < total {
2bf22305 Andy McCall ↶ 834 
        if let Some(last) = rows.get(shown.saturating_sub(1)) {
835 
            let cut: String = last
836 
                .below
837 
                .iter()
838 
                .map(|c| match c {
839 
                    Cell::Blank | Cell::Elided | Cell::JoinRight => "  ",
840 
                    _ => "~ ",
841 
                })
842 
                .collect();
843 
            if cut.trim().is_empty() {
844 
                println!("{}", ui::dim("~"));
845 
            } else {
846 
                println!("{}", ui::dim(cut.trim_end()));
847 
            }
848 
        }
75167672 Andy McCall 849 
        println!(
850 
            "{}",
851 
            ui::dim(format!(
852 
                "{} {} more; pass -n to see them",
853 
                ui::glyph("…", "..."),
854 
                total - shown
855 
            ))
856 
        );
94084087 Andy McCall ↶ 857 
    }
fce44ae9 Andy McCall ↶ 858 
    Ok(0)
2bf22305 Andy McCall ↶ 859 
}
860
861 
/// Rows a drawn edge may span in `oxy log`; a longer one is elided (`~`).
862 
const MAX_EDGE: usize = 12;
863
864 
use oxy_core::hash::ChangeHash;
865 
use oxy_core::lanes::{Cell, GraphRow};
866
867 
/// A graph cell, two columns wide.
868 
fn cell(c: Cell) -> &'static str {
869 
    match c {
870 
        Cell::Blank => "  ",
871 
        Cell::Line => ui::glyph("│ ", "| "),
872 
        Cell::Elided => "~ ",
873 
        Cell::JoinLeft => ui::glyph("├─", "|-"),
874 
        Cell::JoinPass => ui::glyph("──", "--"),
875 
        Cell::JoinCross => ui::glyph("┼─", "+-"),
876 
        Cell::JoinRight => ui::glyph("╯ ", "' "),
877 
    }
878 
}
879
880 
/// The graph part of a change's own line, its bullet in its column.
881 
fn node_line(row: &GraphRow, bullet: &str) -> String {
882 
    let width = row
883 
        .passing
884 
        .iter()
885 
        .copied()
886 
        .max()
887 
        .unwrap_or(0)
888 
        .max(row.column)
889 
        + 1;
890 
    let mut out = String::new();
891 
    for c in 0..width {
892 
        if c == row.column {
893 
            out.push_str(bullet);
894 
            out.push(' ');
895 
        } else if row.passing.contains(&c) {
896 
            out.push_str(&ui::dim(cell(Cell::Line)));
897 
        } else {
898 
            out.push_str("  ");
899 
        }
900 
    }
901 
    out.push(' ');
902 
    out
903 
}
904
905 
/// The graph part of the line under a change: lanes carrying on, a join,
906 
/// or `~` for an elided edge.
907 
fn below_line(row: &GraphRow) -> String {
908 
    let g: String = row.below.iter().map(|c| cell(*c)).collect();
909 
    format!("{} ", ui::dim(g))
910 
}
911
912 
/// The graph part of any further line of a change (`-v`).
913 
fn continuation(row: &GraphRow) -> String {
914 
    let g: String = row
915 
        .below
916 
        .iter()
917 
        .map(|c| match c {
918 
            Cell::Line | Cell::JoinLeft | Cell::JoinCross => cell(Cell::Line),
919 
            _ => "  ",
920 
        })
921 
        .collect();
922 
    format!("{} ", ui::dim(g))
923 
}
924
925 
/// For each hex ID, the length of its shortest prefix no other ID shares.
79b5a90f Andy McCall ↶ 926 
/// The shortest prefix, in hex digits, that names each of `wanted` among
927 
/// `all`: worked out for the few shown rather than for the whole history.
928 
fn id_prefixes(
929 
    mut all: Vec<[u8; 16]>,
930 
    wanted: impl Iterator<Item = [u8; 16]>,
931 
) -> std::collections::HashMap<[u8; 16], usize> {
932 
    all.sort_unstable();
933 
    all.dedup();
934 
    // Hex digits two ids share at the start.
935 
    let common = |a: &[u8; 16], b: &[u8; 16]| {
936 
        let bytes = a.iter().zip(b).take_while(|(x, y)| x == y).count();
937 
        match (a.get(bytes), b.get(bytes)) {
938 
            (Some(x), Some(y)) if x >> 4 == y >> 4 => 2 * bytes + 1,
939 
            _ => 2 * bytes,
940 
        }
941 
    };
942 
    let mut out = std::collections::HashMap::new();
943 
    for id in wanted {
944 
        let Ok(i) = all.binary_search(&id) else {
945 
            continue;
946 
        };
947 
        let before = i.checked_sub(1).map_or(0, |j| common(&all[j], &id));
948 
        let after = all.get(i + 1).map_or(0, |n| common(&id, n));
949 
        out.insert(id, before.max(after) + 1);
950 
    }
951 
    out
952 
}
953
2bf22305 Andy McCall ↶ 954 
fn unique_prefixes(ids: impl Iterator<Item = String>) -> std::collections::HashMap<String, usize> {
955 
    let mut v: Vec<String> = ids.collect();
956 
    v.sort();
957 
    v.dedup();
958 
    let common = |a: &str, b: &str| a.bytes().zip(b.bytes()).take_while(|(x, y)| x == y).count();
959 
    let mut out = std::collections::HashMap::with_capacity(v.len());
960 
    for i in 0..v.len() {
961 
        let before = if i > 0 { common(&v[i - 1], &v[i]) } else { 0 };
962 
        let after = if i + 1 < v.len() {
963 
            common(&v[i], &v[i + 1])
964 
        } else {
965 
            0
966 
        };
967 
        out.insert(v[i].clone(), before.max(after) + 1);
968 
    }
969 
    out
970 
}
971
972 
/// Bookmark, remote bookmark and tag names to show beside the changes they
973 
/// point at. A name is shown on each head of its state; one with more than
974 
/// three heads names too much of the log to help, so it is left out (oxy
975 
/// bookmark list shows it). A remote bookmark at the same state as the
976 
/// local one of that name is not repeated.
977 
fn reference_labels(repo: &Repo) -> Result<std::collections::HashMap<ChangeHash, Vec<String>>> {
978 
    const MAX_HEADS: usize = 3;
979 
    let view = repo.view()?;
980 
    let mut out: std::collections::HashMap<ChangeHash, Vec<String>> = Default::default();
981 
    let mut add = |heads: Vec<ChangeHash>, label: String| {
982 
        if heads.len() <= MAX_HEADS {
983 
            for h in heads {
984 
                out.entry(h).or_default().push(label.clone());
985 
            }
986 
        }
987 
    };
988 
    for (name, st) in &view.bookmarks {
989 
        add(repo.store().get_state(st)?.heads, ui::bookmark(name));
990 
    }
991 
    for (remote, bookmarks) in &view.remotes {
992 
        for (name, st) in bookmarks {
993 
            if view.bookmarks.get(name) == Some(st) {
994 
                continue;
995 
            }
996 
            add(
997 
                repo.store().get_state(st)?.heads,
998 
                ui::dim(format!("{remote}/{name}")),
999 
            );
1000 
        }
1001 
    }
1002 
    for t in repo.tags()? {
1003 
        add(t.heads.clone(), ui::warn(&t.name));
1004 
    }
1005 
    Ok(out)
fce44ae9 Andy McCall ↶ 1006 
}
1007
c6aa5bd9 Andy McCall ↶ 1008 
pub fn diff(change: Option<&str>, as_json: bool) -> Result<i32> {
1009 
    let repo = open()?;
1010 
    let hash = change.map(|c| repo.resolve_change(c)).transpose()?;
1011 
    if as_json {
1012 
        let files = repo.diff_files(hash.as_ref())?;
1013 
        let items = files.iter().map(|f| {
1014 
            json::obj([
1015 
                ("path", json::s(&f.path)),
1016 
                ("kind", json::s(&f.kind)),
1017 
                ("from", json::opt(f.from.as_deref(), json::s)),
1018 
                (
1019 
                    "hunks",
1020 
                    json::arr(f.hunks.iter().map(|h| {
1021 
                        json::obj([
1022 
                            ("base_line", json::n(h.base_line)),
75167672 Andy McCall 1023 
                            (
1024 
                                "added",
1025 
                                json::arr(
1026 
                                    h.added.iter().map(|l| json::s(&String::from_utf8_lossy(l))),
1027 
                                ),
1028 
                            ),
1029 
                            (
1030 
                                "removed",
1031 
                                json::arr(h.removed.iter().map(|(n, l)| {
1032 
                                    json::obj([
1033 
                                        ("line", json::n(*n)),
1034 
                                        ("text", json::s(&String::from_utf8_lossy(l))),
1035 
                                    ])
1036 
                                })),
1037 
                            ),
c6aa5bd9 Andy McCall ↶ 1038 
                        ])
1039 
                    })),
1040 
                ),
1041 
            ])
1042 
        });
75167672 Andy McCall 1043 
        println!(
1044 
            "{}",
1045 
            json::obj([
1046 
                ("change", json::opt(hash, |h| json::s(&h.to_hex()))),
1047 
                ("files", json::arr(items))
1048 
            ])
1049 
        );
c6aa5bd9 Andy McCall ↶ 1050 
        return Ok(0);
1051 
    }
1052 
    match hash {
1053 
        Some(h) => {
1054 
            let c = repo.store().get_change(&h)?;
8ab265dc Andy McCall ↶ 1055 
            let (base, snapshot) = repo.change_base(&c)?;
c6aa5bd9 Andy McCall ↶ 1056 
            print!("{}", render_change(&c, &base, &snapshot));
1057 
        }
1058 
        None => {
77445673 Andy McCall ↶ 1059 
            let (wc, base, snapshot) = repo.working_copy_with_base()?;
10b4fd43 Andy McCall ↶ 1060 
            let text = {
1061 
                let _t = oxy_core::timing::phase("diff: render the change");
1062 
                render_change(&wc, &base, &snapshot)
1063 
            };
1064 
            print!("{text}");
1065 
            // The process ends here: freeing the base's tree and graphs
1066 
            // one by one would only cost time (about 27 ms on Linux).
1067 
            std::mem::forget((wc, base, snapshot));
c6aa5bd9 Andy McCall ↶ 1068 
        }
1069 
    }
1070 
    Ok(0)
1071 
}
1072
1073 
pub fn cat(path: &str, change: Option<&str>) -> Result<i32> {
1074 
    let repo = open()?;
1075 
    let heads = change.map(|c| repo.resolve_heads(c)).transpose()?;
1076 
    let bytes = repo.file_at(path, heads.as_deref())?;
1077 
    use std::io::Write as _;
1078 
    std::io::stdout().write_all(&bytes)?;
1079 
    Ok(0)
1080 
}
1081
1082 
pub fn root(as_json: bool) -> Result<i32> {
1083 
    let Ok(repo) = Repo::open(&std::env::current_dir()?) else {
1084 
        if as_json {
1085 
            println!("null");
1086 
        }
1087 
        return Ok(1);
1088 
    };
1089 
    if as_json {
75167672 Andy McCall 1090 
        println!(
1091 
            "{}",
1092 
            json::obj([
1093 
                ("root", json::s(&repo.root().to_string_lossy())),
1094 
                ("workspace", json::s(&repo.workspace().to_hex())),
1095 
                ("bookmark", json::s(&repo.config.bookmark))
1096 
            ])
1097 
        );
c6aa5bd9 Andy McCall ↶ 1098 
    } else {
1099 
        println!("{}", repo.root().display());
1100 
    }
1101 
    Ok(0)
1102 
}
1103
1104 
pub fn version(as_json: bool) -> Result<i32> {
1105 
    if as_json {
75167672 Andy McCall 1106 
        println!(
1107 
            "{}",
1108 
            json::obj([
1109 
                ("version", json::s(env!("CARGO_PKG_VERSION"))),
e293c90d Andy McCall ↶ 1110 
                // What was built: a release's or install's `oxy describe`,
1111 
                // a Flow build's heads, or "local build".
1112 
                ("build", json::s(env!("OXY_BUILD_ID"))),
75167672 Andy McCall 1113 
                ("protocol", json::n(oxy_core::protocol::PROTOCOL_VERSION)),
1114 
                ("format", json::n(2))
1115 
            ])
1116 
        );
c6aa5bd9 Andy McCall ↶ 1117 
    } else {
75167672 Andy McCall 1118 
        println!(
1119 
            "oxy {} (repository format 2, protocol {})",
e293c90d Andy McCall ↶ 1120 
            env!("OXY_VERSION_LONG"),
75167672 Andy McCall 1121 
            oxy_core::protocol::PROTOCOL_VERSION
1122 
        );
c6aa5bd9 Andy McCall ↶ 1123 
    }
1124 
    Ok(0)
1125 
}
1126
1127 
pub fn discard(paths: &[String], hunks: &[usize]) -> Result<i32> {
1128 
    let repo = open()?;
1129 
    if paths.is_empty() && hunks.is_empty() {
1130 
        anyhow::bail!("name paths to restore, or --hunks to undo chosen hunks");
1131 
    }
1132 
    let mut n = 0;
1133 
    if !hunks.is_empty() {
1134 
        n += repo.discard_hunks(hunks)?;
1135 
    }
1136 
    if !paths.is_empty() {
1137 
        n += repo.discard(paths)?;
1138 
    }
75167672 Andy McCall 1139 
    println!(
1140 
        "{} {} restored to the working copy's base",
1141 
        ui::done("Discarded"),
1142 
        plural(n, "path")
1143 
    );
c6aa5bd9 Andy McCall ↶ 1144 
    Ok(0)
1145 
}
1146
1147 
pub fn hunks(as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1148 
    let repo = open()?;
c6aa5bd9 Andy McCall ↶ 1149 
    let (_, hunks) = repo.hunks()?;
1150 
    if as_json {
75167672 Andy McCall 1151 
        println!(
1152 
            "{}",
1153 
            json::arr(hunks.iter().map(|h| json::obj([
1154 
                ("index", json::n(h.index)),
1155 
                ("path", json::s(&h.path)),
1156 
                ("text", json::s(&h.text))
1157 
            ])))
1158 
        );
c6aa5bd9 Andy McCall ↶ 1159 
        return Ok(0);
1160 
    }
1161 
    if hunks.is_empty() {
75167672 Andy McCall 1162 
        println!(
1163 
            "{}",
1164 
            ui::dim("No hunks: the working copy matches its base.")
1165 
        );
c6aa5bd9 Andy McCall ↶ 1166 
    }
1167 
    for h in &hunks {
75167672 Andy McCall 1168 
        println!(
1169 
            "{} {}",
1170 
            ui::section(format!("hunk {}", h.index)),
1171 
            ui::path(&h.path)
1172 
        );
c6aa5bd9 Andy McCall ↶ 1173 
        for line in h.text.lines() {
75167672 Andy McCall 1174 
            let styled = if line.starts_with('+') {
1175 
                ui::ok(line)
1176 
            } else if line.starts_with('-') {
1177 
                ui::err(line)
1178 
            } else {
1179 
                ui::dim(line)
1180 
            };
c6aa5bd9 Andy McCall ↶ 1181 
            println!("  {styled}");
1182 
        }
1183 
    }
fce44ae9 Andy McCall ↶ 1184 
    Ok(0)
1185 
}
1186
2c9ddac3 Andy McCall ↶ 1187 
pub fn show(change: Option<&str>, revset: Option<&str>, as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1188 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 1189 
    repo.snapshot_status("oxy show")?;
2c9ddac3 Andy McCall ↶ 1190 
    let Some(r) = revset else {
1191 
        let h = repo.resolve_change(change.unwrap_or("@"))?;
1192 
        return show_one(&repo, h, as_json, false);
1193 
    };
1194 
    // Several changes: a JSON array, or the changes one after another.
1195 
    let hashes = repo.revset(r)?.hashes;
1196 
    if as_json {
1197 
        print!("[");
1198 
        for (i, h) in hashes.iter().enumerate() {
1199 
            if i > 0 {
1200 
                print!(",");
1201 
            }
1202 
            show_one(&repo, *h, true, true)?;
1203 
        }
1204 
        println!("]");
1205 
        return Ok(0);
1206 
    }
1207 
    if hashes.is_empty() {
1208 
        println!("{}", ui::dim(format!("No change matches {r:?}.")));
1209 
        return Ok(0);
1210 
    }
1211 
    for (i, h) in hashes.iter().enumerate() {
1212 
        if i > 0 {
1213 
            println!();
1214 
        }
1215 
        show_one(&repo, *h, false, false)?;
1216 
    }
1217 
    Ok(0)
1218 
}
1219
1220 
/// One change, as `oxy show` prints it; `inline` JSON goes without its
1221 
/// newline, for an array.
1222 
fn show_one(repo: &Repo, h: ChangeHash, as_json: bool, inline: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1223 
    let c = repo.store().get_change(&h)?;
c6aa5bd9 Andy McCall ↶ 1224 
    if as_json {
1225 
        let files = repo.diff_files(Some(&h))?;
1226 
        let heads = repo.bookmark_heads()?;
75167672 Andy McCall 1227 
        let entry = oxy_core::repo::LogEntry {
1228 
            hash: h,
1229 
            change: oxy_core::state::ChangeMeta::of(&c),
1230 
            is_working_copy: c.kind == oxy_core::objects::ChangeKind::WorkingCopy,
1231 
            is_head: heads.contains(&h),
1232 
        };
2c9ddac3 Andy McCall ↶ 1233 
        let mut body = log_entry_json(repo, &entry)?;
c6aa5bd9 Andy McCall ↶ 1234 
        body.pop();
75167672 Andy McCall 1235 
        body.push_str(&format!(
1236 
            ",{}:{}}}",
1237 
            json::s("files"),
1238 
            json::arr(files.iter().map(|f| json::obj([
1239 
                ("path", json::s(&f.path)),
1240 
                ("kind", json::s(&f.kind)),
1241 
                ("from", json::opt(f.from.as_deref(), json::s))
1242 
            ])))
1243 
        ));
2c9ddac3 Andy McCall ↶ 1244 
        if inline {
1245 
            print!("{body}");
1246 
        } else {
1247 
            println!("{body}");
1248 
        }
c6aa5bd9 Andy McCall ↶ 1249 
        return Ok(0);
1250 
    }
75167672 Andy McCall 1251 
    println!(
1252 
        "{} {} {}",
1253 
        ui::section("change"),
1254 
        ui::id(short_id(&c)),
1255 
        ui::hash(format!("#{h}"))
1256 
    );
94084087 Andy McCall ↶ 1257 
    println!("{}", ui::kv("kind", format!("{:?}", c.kind).to_lowercase()));
b35df36b Andy McCall ↶ 1258 
    // Fetched but not pulled (oxygen#56): say where it is.
1259 
    if let Some(at) = repo.remote_only_location(&h)? {
1260 
        println!(
1261 
            "{}",
1262 
            ui::kv(
1263 
                "only in",
1264 
                ui::warn(format!(
1265 
                    "{at}: fetched, not yet in a local bookmark (oxy pull)"
1266 
                ))
1267 
            )
1268 
        );
1269 
    }
5cde7882 Andy McCall ↶ 1270 
    let meta = oxy_core::state::ChangeMeta::of(&c);
1271 
    let status = repo.authenticate_change_known(&h, Some(&meta))?;
1272 
    println!("{}", ui::kv("author", ui::author(author_name(repo, &meta))));
1273 
    if let Some(agent) = via(repo, &status, &meta.author) {
1274 
        println!("{}", ui::kv("via", agent.line()));
1275 
    }
75167672 Andy McCall 1276 
    println!(
1277 
        "{}",
1278 
        ui::kv(
1279 
            "date",
1280 
            format!(
1281 
                "{} {}",
1282 
                when(c.hlc.wall_ms),
1283 
                ui::dim(format!("({})", ui::ago(c.hlc.wall_ms)))
1284 
            )
1285 
        )
1286 
    );
94084087 Andy McCall ↶ 1287 
    println!("{}", ui::kv("deps", ui::dim(deps_line(&c))));
2c9ddac3 Andy McCall ↶ 1288 
    println!("{}", ui::kv("sig", signature_line(repo, &h)?));
94084087 Andy McCall ↶ 1289 
    println!();
75167672 Andy McCall 1290 
    for line in (if c.message.is_empty() {
1291 
        "(no description)"
1292 
    } else {
1293 
        &c.message
1294 
    })
1295 
    .lines()
1296 
    {
94084087 Andy McCall ↶ 1297 
        println!("    {line}");
1298 
    }
1299 
    println!();
fce44ae9 Andy McCall ↶ 1300 
    print!("{}", repo.describe_change(&h)?);
1301 
    Ok(0)
1302 
}
1303
1c2bd9ab Andy McCall ↶ 1304 
pub fn checkout(changes: &[String], discard: bool, carry: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1305 
    let repo = open()?;
a46f3e4f Andy McCall ↶ 1306 
    // `oxy checkout BOOKMARK` is being on that bookmark, as `git checkout
1307 
    // BRANCH` is: checking its files out under another bookmark's name
1308 
    // made the next commit move the wrong bookmark (oxygen#60).
1309 
    if let [name] = changes {
1310 
        if *name != repo.config.bookmark && names_bookmark(&repo, name)? {
1311 
            drop(repo);
1312 
            return bookmark_switch(name, discard, carry);
1313 
        }
1314 
    }
fce44ae9 Andy McCall ↶ 1315 
    let heads = if changes.is_empty() {
1316 
        repo.bookmark_heads()?
1317 
    } else {
132b884b Andy McCall ↶ 1318 
        let mut heads = Vec::new();
1319 
        for c in changes {
1320 
            heads.extend(repo.resolve_heads(c)?);
1321 
        }
1322 
        heads
fce44ae9 Andy McCall ↶ 1323 
    };
75167672 Andy McCall 1324 
    let spec = if changes.is_empty() {
1325 
        repo.config.bookmark.clone()
1326 
    } else {
1327 
        changes.join(" ")
1328 
    };
135212de Andy McCall ↶ 1329 
    let sp = ui::spinner(&format!("Checking out {spec}…"));
1c2bd9ab Andy McCall ↶ 1330 
    let command = format!("oxy checkout {spec}");
1331 
    let (r, carried) = if carry {
1332 
        repo.checkout_carry(&heads, &spec, &command)?
1333 
    } else {
1334 
        (repo.checkout(&heads, discard, &command)?, vec![])
1335 
    };
75167672 Andy McCall 1336 
    sp.done(&format!(
1c2bd9ab Andy McCall ↶ 1337 
        "{} on {}: {} written, {} removed{}",
75167672 Andy McCall 1338 
        ui::done("Working copy"),
1339 
        ui::bookmark(&spec),
1340 
        plural(r.written, "file"),
1c2bd9ab Andy McCall ↶ 1341 
        r.removed,
1342 
        if carried.is_empty() {
1343 
            String::new()
1344 
        } else {
1345 
            format!("; carried {}", plural(carried.len(), "changed path"))
1346 
        }
75167672 Andy McCall 1347 
    ));
9b723f69 Andy McCall ↶ 1348 
    print_removed(&r);
4dee277c Andy McCall ↶ 1349 
    for n in &r.notes {
1350 
        println!("  {} {n}", ui::note());
1351 
    }
fce44ae9 Andy McCall ↶ 1352 
    if r.conflicted {
75167672 Andy McCall 1353 
        println!(
1354 
            "  {} {}",
1355 
            ui::caution(),
1356 
            ui::warn("this state has conflicts; see oxy status")
1357 
        );
fce44ae9 Andy McCall ↶ 1358 
    }
98a1620a Andy McCall ↶ 1359 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1360 
    Ok(0)
1361 
}
1362
c6aa5bd9 Andy McCall ↶ 1363 
pub fn resolve(as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1364 
    let repo = open()?;
1365 
    let snap = repo.snapshot("oxy resolve")?;
c6aa5bd9 Andy McCall ↶ 1366 
    if as_json {
1367 
        println!("{}", repo.status_json(&snap)?);
75167672 Andy McCall 1368 
        return Ok(if snap.base_snapshot.is_conflicted() {
1369 
            2
1370 
        } else {
1371 
            0
1372 
        });
c6aa5bd9 Andy McCall ↶ 1373 
    }
fce44ae9 Andy McCall ↶ 1374 
    if !snap.base_snapshot.is_conflicted() {
1375 
        println!("The working copy's base has no conflicts.");
1376 
        return Ok(0);
1377 
    }
1378 
    let mut remaining = 0;
1379 
    for (p, f) in &snap.base_snapshot.files {
1380 
        if !f.is_conflicted() {
1381 
            continue;
1382 
        }
75167672 Andy McCall 1383 
        match snap
1384 
            .statuses
1385 
            .iter()
1386 
            .find(|s| s.path == *p)
1387 
            .map(|s| s.status)
1388 
        {
fce44ae9 Andy McCall ↶ 1389 
            Some(ChangeStatus::Resolved) => println!("resolved   {p}"),
1390 
            Some(ChangeStatus::ConflictEdited) => {
1391 
                remaining += 1;
1392 
                println!("markers    {p}");
1393 
            }
1394 
            _ => {
1395 
                remaining += 1;
1396 
                println!("unresolved {p}");
1397 
            }
1398 
        }
1399 
    }
1400 
    for c in &snap.base_snapshot.tree.conflicts {
1401 
        remaining += 1;
1402 
        println!("tree       {c:?}");
1403 
    }
1404 
    if remaining == 0 {
1405 
        println!("All conflicts are resolved; `oxy commit` will record the resolution.");
1406 
        Ok(0)
1407 
    } else {
1408 
        Ok(2)
1409 
    }
1410 
}
1411
1412 
pub fn undo() -> Result<i32> {
1413 
    let repo = open()?;
530a0fc6 Andy McCall ↶ 1414 
    let u = repo.undo()?;
1415 
    println!("{} {}", ui::done("Undone:"), u.command);
1416 
    for c in &u.changes {
1417 
        println!("  {} {}", ui::note(), change_words(&repo, c));
1418 
    }
1419 
    if u.others_kept > 0 {
1420 
        let s = if u.others_kept == 1 { "" } else { "s" };
1421 
        println!(
1422 
            "  {} {}",
1423 
            ui::note(),
1424 
            ui::dim(format!(
1425 
                "{} newer operation{s} from other workspaces left as they are",
1426 
                u.others_kept
1427 
            ))
1428 
        );
1429 
    }
1430 
    for (bookmark, remote) in &u.pushed {
1431 
        println!(
1432 
            "  {} {}",
1433 
            ui::caution(),
1434 
            ui::warn(format!(
1435 
                "{remote}/{bookmark} already has what this undid: undone here only; the next push of {bookmark} needs --force to take it back there"
1436 
            ))
1437 
        );
1438 
    }
98a1620a Andy McCall ↶ 1439 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1440 
    Ok(0)
1441 
}
1442
98a1620a Andy McCall ↶ 1443 
pub fn op_log(limit: Option<usize>, as_json: bool) -> Result<i32> {
fce44ae9 Andy McCall ↶ 1444 
    let repo = open()?;
98a1620a Andy McCall ↶ 1445 
    let ops = repo.op_log()?;
1446 
    // What each operation changed, against the one before it.
1447 
    let changes_of = |i: usize| -> Result<Vec<oxy_core::repo::ViewChange>> {
1448 
        match ops.get(i + 1) {
1449 
            Some((_, before)) => Ok(repo.view_changes(&before.view, &ops[i].1.view)?),
1450 
            None => Ok(vec![]),
1451 
        }
1452 
    };
c6aa5bd9 Andy McCall ↶ 1453 
    if as_json {
98a1620a Andy McCall ↶ 1454 
        let mut items = Vec::new();
1455 
        for (i, (r, op)) in ops.iter().enumerate().take(limit.unwrap_or(usize::MAX)) {
1456 
            let summary: Vec<String> = changes_of(i)?
1457 
                .iter()
1458 
                .map(|c| change_words(&repo, c))
1459 
                .collect();
1460 
            items.push(json::obj([
1461 
                ("id", json::s(&r.to_hex())),
1462 
                ("when_ms", json::n(op.hlc.wall_ms)),
1463 
                ("command", json::s(&op.command)),
1464 
                ("snapshot", json::b(op.is_snapshot())),
1465 
                ("current", json::b(i == 0)),
1466 
                ("changes", json::arr(summary.iter().map(|x| json::s(x)))),
1467 
            ]));
1468 
        }
1469 
        println!("{}", json::arr(items));
c6aa5bd9 Andy McCall ↶ 1470 
        return Ok(0);
1471 
    }
98a1620a Andy McCall ↶ 1472 
    let id_prefix = unique_prefixes(ops.iter().map(|(r, _)| r.to_hex()));
1473 
    let id = |r: &oxy_core::hash::ObjectRef| {
1474 
        let hex = r.to_hex();
1475 
        let n = id_prefix.get(&hex).copied().unwrap_or(12).min(12);
1476 
        format!("{}{}", ui::id(&hex[..n]), ui::dim(&hex[n..12]))
1477 
    };
1478 
    let rail = ui::dim(ui::glyph("│", "|"));
1479 
    let (mut i, mut shown) = (0, 0);
1480 
    while i < ops.len() && shown < limit.unwrap_or(usize::MAX) {
1481 
        let (r, op) = &ops[i];
75167672 Andy McCall 1482 
        let bullet = if i == 0 {
98a1620a Andy McCall ↶ 1483 
            ui::ok(ui::glyph("@", "@"))
75167672 Andy McCall 1484 
        } else {
1485 
            ui::dim(ui::glyph("○", "o"))
1486 
        };
98a1620a Andy McCall ↶ 1487 
        // A run of snapshots folds into one entry.
1488 
        let mut run = 1;
1489 
        while op.is_snapshot() && i + run < ops.len() && ops[i + run].1.is_snapshot() {
1490 
            run += 1;
1491 
        }
1492 
        let when = ui::dim(ui::ago(op.hlc.wall_ms));
1493 
        if op.is_snapshot() {
1494 
            let span = if run > 1 {
1495 
                format!("{} {}", ui::dim("…"), id(&ops[i + run - 1].0))
1496 
            } else {
1497 
                String::new()
1498 
            };
1499 
            println!(
1500 
                "{bullet}  {}{} {when}",
1501 
                id(r),
1502 
                if span.is_empty() {
1503 
                    String::new()
1504 
                } else {
1505 
                    format!(" {span}")
1506 
                }
1507 
            );
1508 
            println!(
1509 
                "{rail}  {}",
1510 
                ui::dim(if run == 1 {
1511 
                    "working-copy snapshot".to_string()
1512 
                } else {
1513 
                    format!("{run} working-copy snapshots")
1514 
                })
1515 
            );
1516 
        } else {
1517 
            println!("{bullet}  {} {when}", id(r));
1518 
            let words: Vec<String> = changes_of(i)?
1519 
                .iter()
1520 
                .map(|c| change_words(&repo, c))
1521 
                .collect();
1522 
            let summary = if words.is_empty() {
1523 
                if i + 1 == ops.len() {
1524 
                    "created the repository".to_string()
1525 
                } else {
1526 
                    "no bookmark or working-copy change".to_string()
1527 
                }
1528 
            } else {
1529 
                words.join("; ")
1530 
            };
1531 
            println!(
1532 
                "{rail}  {}",
1533 
                if i == 0 {
1534 
                    ui::subject(&summary)
1535 
                } else {
1536 
                    summary
1537 
                }
1538 
            );
1539 
            let cmd = op.command.lines().next().unwrap_or("");
1540 
            let cmd: String = cmd.chars().take(100).collect();
1541 
            println!("{rail}  {}", ui::dim(cmd));
1542 
        }
1543 
        i += run;
1544 
        shown += 1;
1545 
    }
1546 
    if i < ops.len() {
75167672 Andy McCall 1547 
        println!(
98a1620a Andy McCall ↶ 1548 
            "{}",
1549 
            ui::dim(format!(
1550 
                "{} {} older; pass -n to see more",
1551 
                ui::glyph("…", "..."),
1552 
                plural(ops.len() - i, "operation")
1553 
            ))
1554 
        );
1555 
    }
1556 
    Ok(0)
1557 
}
1558
1559 
/// One change an operation made, in words.
1560 
fn change_words(repo: &Repo, c: &oxy_core::repo::ViewChange) -> String {
1561 
    use oxy_core::repo::ViewChange::*;
1562 
    match c {
1563 
        BookmarkCreated { name, heads } => {
1564 
            format!("created bookmark {name} ({})", plural(*heads, "head"))
1565 
        }
1566 
        BookmarkDeleted { name } => format!("deleted bookmark {name}"),
1567 
        BookmarkMoved { name, from, to } if from == to => format!("moved {name}"),
1568 
        BookmarkMoved { name, from, to } => format!(
1569 
            "{name}: {from} {} {}",
1570 
            ui::glyph("→", "->"),
1571 
            plural(*to, "head")
1572 
        ),
1573 
        RemoteMoved { remote, name } => format!("{remote}/{name} updated"),
1574 
        TagCreated { name } => format!("tagged {name}"),
1575 
        TagDeleted { name } => format!("removed tag {name}"),
1576 
        Policy => "trust policy changed".to_string(),
1577 
        WorkingCopy { change } => match repo.store().get_change_meta(change) {
1578 
            Ok(m) => format!("working copy now {}", m.change_id.short(8)),
1579 
            Err(_) => "working copy moved".to_string(),
1580 
        },
1581 
    }
1582 
}
1583
1584 
pub fn op_restore(op: &str, discard: bool) -> Result<i32> {
1585 
    let repo = open()?;
1586 
    let sp = ui::spinner(&format!("Restoring to operation {op}…"));
1587 
    let r = repo.op_restore(op, discard)?;
1588 
    sp.done(&format!(
1589 
        "{} to operation {} {}",
1590 
        ui::done("Restored"),
1591 
        ui::hash(r.op.short(12)),
1592 
        ui::dim(r.command.lines().next().unwrap_or(""))
1593 
    ));
1594 
    println!(
1595 
        "  {} {}",
1596 
        ui::note(),
1597 
        ui::dim(format!(
1598 
            "{} written, {} removed; oxy undo goes back again",
1599 
            plural(r.checkout.written, "file"),
1600 
            r.checkout.removed
1601 
        ))
1602 
    );
1603 
    where_now(&repo);
1604 
    Ok(0)
1605 
}
1606
1607 
pub fn op_revert(op: &str) -> Result<i32> {
1608 
    let repo = open()?;
1609 
    let r = repo.op_revert(op)?;
1610 
    let view = repo.view()?;
1611 
    let names: Vec<String> = r
1612 
        .reverted
1613 
        .iter()
1614 
        .map(|n| {
1615 
            if view.bookmarks.contains_key(n) {
1616 
                ui::bookmark(n)
75167672 Andy McCall 1617 
            } else {
98a1620a Andy McCall ↶ 1618 
                format!("{} (removed)", ui::bookmark(n))
75167672 Andy McCall 1619 
            }
98a1620a Andy McCall ↶ 1620 
        })
1621 
        .collect();
1622 
    println!(
1623 
        "{} operation {} {}",
1624 
        ui::done("Reverted"),
1625 
        ui::hash(r.op.short(12)),
1626 
        ui::dim(r.command.lines().next().unwrap_or(""))
1627 
    );
1628 
    println!(
1629 
        "  {} {}",
1630 
        ui::note(),
1631 
        ui::dim(format!("as before it: {}", names.join(", ")))
1632 
    );
1633 
    if !r.kept.is_empty() {
1634 
        println!(
1635 
            "  {} {}",
1636 
            ui::caution(),
1637 
            ui::warn(format!(
1638 
                "left as they are, having moved again since: {}",
1639 
                r.kept.join(", ")
1640 
            ))
75167672 Andy McCall 1641 
        );
fce44ae9 Andy McCall ↶ 1642 
    }
98a1620a Andy McCall ↶ 1643 
    if !r.checked_out && r.reverted.contains(&repo.config.bookmark) {
1644 
        println!(
1645 
            "  {} {}",
1646 
            ui::note(),
1647 
            ui::dim("the working copy has work of its own: oxy checkout to move it")
1648 
        );
1649 
    }
1650 
    where_now(&repo);
fce44ae9 Andy McCall ↶ 1651 
    Ok(0)
98a1620a Andy McCall ↶ 1652 
}
1653
1654 
/// Where the working copy and bookmark are now, after a command moved
1655 
/// them (as jj says "Working copy now at").
1656 
pub fn where_now(repo: &Repo) {
1657 
    let Ok((_, wc)) = repo.working_copy() else {
1658 
        return;
1659 
    };
1660 
    let heads = repo.bookmark_heads().unwrap_or_default();
1661 
    let newest = heads
1662 
        .iter()
1663 
        .filter_map(|h| repo.store().get_change_meta(h).ok().map(|m| (m, *h)))
1664 
        .max_by_key(|(m, _)| m.hlc);
1665 
    println!(
1666 
        "  {} {}",
1667 
        ui::dim(format!("{:<13}", "Working copy")),
1668 
        ui::id(wc.change_id.short(8))
1669 
    );
1670 
    let tail = match newest {
1671 
        Some((m, _)) => format!(
1672 
            ", newest {} {}",
1673 
            ui::id(m.change_id.short(8)),
1674 
            subject_of(&m.message)
1675 
        ),
1676 
        None => String::new(),
1677 
    };
1678 
    println!(
1679 
        "  {} {}: {}{tail}",
1680 
        ui::dim(format!("{:<13}", "Bookmark")),
1681 
        ui::bookmark(&repo.config.bookmark),
1682 
        plural(heads.len(), "head")
1683 
    );
fce44ae9 Andy McCall ↶ 1684 
}
d02e545d Andy McCall ↶ 1685
b689779e Andy McCall ↶ 1686 
pub fn gc(now: bool, expire_snapshots: bool) -> Result<i32> {
1687 
    let mut repo = open()?;
1688 
    if expire_snapshots {
1689 
        repo.config.snapshot_retention_days = 0;
1690 
    }
135212de Andy McCall ↶ 1691 
    let sp = ui::spinner("Packing and pruning…");
9ae4d15a Andy McCall ↶ 1692 
    let r = repo.gc_with(now, &mut |phase| sp.set(&format!("{phase}…")))?;
135212de Andy McCall ↶ 1693 
    sp.clear();
ba160f60 Andy McCall ↶ 1694 
    if r.packed.objects > 0 {
d02e545d Andy McCall ↶ 1695 
        println!(
da652d63 Andy McCall ↶ 1696 
            "Packed {} into one pack: {} bytes -> {} bytes ({:.0}%).",
1697 
            plural(r.packed.objects, "object"),
ba160f60 Andy McCall ↶ 1698 
            r.packed.raw_bytes,
1699 
            r.packed.packed_bytes,
1700 
            100.0 * r.packed.packed_bytes as f64 / r.packed.raw_bytes.max(1) as f64
d02e545d Andy McCall ↶ 1701 
        );
1702 
    }
75167672 Andy McCall 1703 
    println!(
1704 
        "{} reachable; pruned {} ({} bytes){}{}; {} present.",
ba160f60 Andy McCall ↶ 1705 
        plural(r.reachable, "object"),
1706 
        plural(r.pruned.objects, "unreachable object"),
1707 
        r.pruned.bytes,
75167672 Andy McCall 1708 
        if r.pruned.deferred > 0 {
1709 
            format!(
1710 
                "; {} deferred by the grace period (use --now)",
1711 
                plural(r.pruned.deferred, "object")
1712 
            )
1713 
        } else {
1714 
            String::new()
1715 
        },
1716 
        if r.merged_packs > 0 {
1717 
            format!("; merged {} into one", plural(r.merged_packs, "pack"))
1718 
        } else {
1719 
            String::new()
1720 
        },
ba160f60 Andy McCall ↶ 1721 
        plural(repo.store().pack_count(), "pack")
1722 
    );
767ac6cd Andy McCall 1723 
    // What earlier repacks replaced stays an hour for readers still using
1724 
    // it (oxygenhub#249); a collection after that deletes it.
1725 
    let kept = if r.retired.kept > 0 {
1726 
        format!(
1727 
            "{} retired less than an hour ago kept for readers",
1728 
            plural(r.retired.kept, "file")
1729 
        )
1730 
    } else {
1731 
        String::new()
1732 
    };
1733 
    if r.retired.packs + r.retired.loose > 0 {
1734 
        println!(
1735 
            "Deleted {} and {} retired by earlier repacks{}.",
1736 
            plural(r.retired.packs, "pack"),
1737 
            plural(r.retired.loose, "loose object"),
1738 
            if kept.is_empty() {
1739 
                String::new()
1740 
            } else {
1741 
                format!("; {kept}")
1742 
            }
1743 
        );
1744 
    } else if !kept.is_empty() {
1745 
        println!("{kept}.");
1746 
    }
d02e545d Andy McCall ↶ 1747 
    Ok(0)
1748 
}
614541c3 Andy McCall ↶ 1749
d8d93678 Andy McCall ↶ 1750 
/// `oxy gc --remote NAME`: fold a store remote's bundles into one.
1751 
pub fn gc_remote(name: &str, now: bool) -> Result<i32> {
1752 
    let repo = open()?;
1753 
    let sp = ui::spinner(&format!("Folding {name}'s bundles…"));
1754 
    let r = repo.gc_remote(name, now)?;
1755 
    sp.clear();
1756 
    if r.merged > 0 {
1757 
        println!(
1758 
            "{} {} into one of {} bytes ({})",
1759 
            ui::done("Folded"),
1760 
            plural(r.merged, "bundle"),
1761 
            r.bundle_bytes,
1762 
            plural(r.changes, "change")
1763 
        );
1764 
    } else {
1765 
        println!(
1766 
            "{} {}",
1767 
            ui::note(),
1768 
            ui::dim("nothing to fold: one bundle holds everything")
1769 
        );
1770 
    }
1771 
    println!(
1772 
        "  {} {}",
1773 
        ui::note(),
1774 
        ui::dim(format!(
1775 
            "removed {}{}",
1776 
            plural(r.deleted, "superseded bundle"),
1777 
            if r.deferred > 0 {
1778 
                format!(
1779 
                    "; {} kept for readers that may still fetch them (use --now)",
1780 
                    plural(r.deferred, "bundle")
1781 
                )
1782 
            } else {
1783 
                String::new()
1784 
            }
1785 
        ))
1786 
    );
1787 
    Ok(0)
1788 
}
1789
3e5772cc Andy McCall ↶ 1790 
/// `oxy doctor`: exit 1 when a check fails, 0 otherwise (warnings allowed).
1791 
pub fn doctor(offline: bool, as_json: bool) -> Result<i32> {
1792 
    use oxy_core::repo::Health;
1793 
    let repo = open()?;
1794 
    let sp = ui::spinner(if offline {
1795 
        "Checking…"
1796 
    } else {
1797 
        "Checking, and contacting remotes…"
1798 
    });
1799 
    let r = repo.doctor(!offline);
1800 
    sp.clear();
1801 
    let code = if r.worst() == Health::Fail { 1 } else { 0 };
1802 
    let word = |h: Health| match h {
1803 
        Health::Ok => "ok",
1804 
        Health::Warn => "warning",
1805 
        Health::Fail => "fail",
1806 
    };
1807 
    if as_json {
1808 
        let checks: Vec<String> = r
1809 
            .checks
1810 
            .iter()
1811 
            .map(|c| {
1812 
                json::obj([
1813 
                    ("area", json::s(&c.area)),
1814 
                    ("health", json::s(word(c.health))),
1815 
                    ("message", json::s(&c.message)),
1816 
                    ("hint", json::opt(c.hint.as_deref(), json::s)),
1817 
                ])
1818 
            })
1819 
            .collect();
1820 
        println!(
1821 
            "{}",
1822 
            json::obj([("ok", json::b(code == 0)), ("checks", json::arr(checks))])
1823 
        );
1824 
        return Ok(code);
1825 
    }
1826 
    let mut last = "";
1827 
    for c in &r.checks {
1828 
        if c.area != last {
1829 
            println!("{}", ui::section(&c.area));
1830 
            last = &c.area;
1831 
        }
1832 
        let mark = match c.health {
1833 
            Health::Ok => ui::ok(ui::glyph("✔", "v")),
1834 
            Health::Warn => ui::caution(),
1835 
            Health::Fail => ui::err(ui::glyph("✖", "x")),
1836 
        };
1837 
        println!("  {mark} {}", c.message);
1838 
        if let Some(h) = &c.hint {
1839 
            println!("    {} {}", ui::dim("→"), ui::dim(h));
1840 
        }
1841 
    }
1842 
    let fails = r.checks.iter().filter(|c| c.health == Health::Fail).count();
1843 
    let warns = r.checks.iter().filter(|c| c.health == Health::Warn).count();
1844 
    if fails + warns == 0 {
1845 
        println!("{}", ui::done("Everything looks right."));
1846 
    } else {
1847 
        println!(
1848 
            "{} {}, {}.",
1849 
            if fails > 0 {
1850 
                ui::err(ui::glyph("✖", "x"))
1851 
            } else {
1852 
                ui::caution()
1853 
            },
1854 
            plural(fails, "problem"),
1855 
            plural(warns, "warning")
1856 
        );
1857 
    }
1858 
    Ok(code)
1859 
}
1860
387335ff Andy McCall ↶ 1861 
/// `oxy fsck`: exit 0 when sound (warnings allowed), 1 on any error.
1862 
pub fn fsck(as_json: bool) -> Result<i32> {
1863 
    use oxy_core::repo::Severity;
1864 
    let repo = open()?;
1865 
    let sp = ui::spinner("Checking every object…");
1866 
    let r = repo.fsck()?;
1867 
    sp.clear();
1868 
    let code = if r.errors() > 0 { 1 } else { 0 };
1869 
    if as_json {
1870 
        let problems: Vec<String> = r
1871 
            .problems
1872 
            .iter()
1873 
            .map(|p| {
1874 
                json::obj([
1875 
                    (
1876 
                        "severity",
1877 
                        json::s(match p.severity {
1878 
                            Severity::Error => "error",
1879 
                            Severity::Warning => "warning",
1880 
                        }),
1881 
                    ),
1882 
                    (
1883 
                        "object",
1884 
                        json::opt(p.object.map(|o| o.to_hex()).as_deref(), json::s),
1885 
                    ),
1886 
                    ("what", json::s(&p.what)),
1887 
                ])
1888 
            })
1889 
            .collect();
1890 
        println!(
1891 
            "{}",
1892 
            json::obj([
1893 
                ("ok", json::b(code == 0)),
1894 
                ("objects", json::n(r.objects)),
1895 
                ("ops", json::n(r.ops)),
1896 
                ("changes", json::n(r.changes)),
1897 
                ("signed", json::n(r.signed)),
1898 
                ("unsigned", json::n(r.unsigned)),
1899 
                ("checkpoints", json::n(r.checkpoints)),
1900 
                ("attestations", json::n(r.attestations)),
1901 
                ("errors", json::n(r.errors())),
1902 
                ("warnings", json::n(r.warnings())),
1903 
                ("problems", json::arr(problems)),
1904 
            ])
1905 
        );
1906 
        return Ok(code);
1907 
    }
1908 
    println!(
1909 
        "Checked {}, {}, {} ({} signed or sealed, {} unsigned), {}, {}.",
1910 
        plural(r.objects, "object"),
1911 
        plural(r.ops, "operation"),
1912 
        plural(r.changes, "change"),
1913 
        r.signed,
1914 
        r.unsigned,
1915 
        plural(r.checkpoints, "checkpoint"),
1916 
        plural(r.attestations, "attestation"),
1917 
    );
1918 
    for p in &r.problems {
1919 
        let obj = p
1920 
            .object
1921 
            .map(|o| format!("{} ", ui::hash(format!("#{}", o.short(12)))))
1922 
            .unwrap_or_default();
1923 
        match p.severity {
1924 
            Severity::Error => println!("{} {obj}{}", ui::err(ui::glyph("✖", "x")), p.what),
1925 
            Severity::Warning => println!("{} {obj}{}", ui::caution(), p.what),
1926 
        }
1927 
    }
1928 
    if r.problems.is_empty() {
1929 
        println!("{}", ui::done("No problems found."));
1930 
    } else if code == 0 {
1931 
        println!(
1932 
            "{}",
1933 
            ui::done(format!("Sound, with {}.", plural(r.warnings(), "warning")))
1934 
        );
1935 
    } else {
1936 
        println!(
1937 
            "{} {} and {}. Fetch missing objects from a remote with `oxy pull`, or clone afresh and compare.",
1938 
            ui::err(ui::glyph("✖", "x")),
1939 
            plural(r.errors(), "error"),
1940 
            plural(r.warnings(), "warning")
1941 
        );
1942 
    }
1943 
    Ok(code)
1944 
}
1945
79d03f82 Andy McCall ↶ 1946 
/// The head the working copy sits on, for commands that default to it. With
1947 
/// several heads beneath the working copy, the most recently made one is
1948 
/// chosen and announced.
614541c3 Andy McCall ↶ 1949 
fn current_head(repo: &Repo) -> Result<oxy_core::hash::ChangeHash> {
cc7a0056 Andy McCall ↶ 1950 
    let snap = repo.snapshot_status("oxy")?;
614541c3 Andy McCall ↶ 1951 
    let base = snap.base.maximal(&snap.wc.deps);
1952 
    match base.as_slice() {
79d03f82 Andy McCall ↶ 1953 
        [] => anyhow::bail!("the working copy sits on no change yet"),
614541c3 Andy McCall ↶ 1954 
        [h] => Ok(*h),
79d03f82 Andy McCall ↶ 1955 
        many => {
1956 
            let latest = many
1957 
                .iter()
1958 
                .max_by_key(|h| snap.base.get(h).map(|c| (c.hlc, **h)))
1959 
                .copied()
1960 
                .unwrap();
1961 
            let c = repo.store().get_change(&latest)?;
75167672 Andy McCall 1962 
            println!(
1963 
                "Defaulting to {} #{} (most recent of the {} heads under the working copy)",
1964 
                short_id(&c),
1965 
                latest.short(12),
1966 
                many.len()
1967 
            );
79d03f82 Andy McCall ↶ 1968 
            Ok(latest)
1969 
        }
614541c3 Andy McCall ↶ 1970 
    }
1971 
}
1972
6a81dbab Andy McCall ↶ 1973 
/// `oxy describe` without -m: the working copy's name for a build.
1974 
pub fn describe_name(as_json: bool) -> Result<i32> {
1975 
    let repo = open()?;
1976 
    let d = repo.describe_working_copy()?;
1977 
    if as_json {
1978 
        println!(
1979 
            "{}",
1980 
            json::obj([
1981 
                ("describe", json::s(&d.line())),
1982 
                ("tag", json::opt(d.tag.as_ref(), |t| json::s(t))),
1983 
                ("distance", json::n(d.distance)),
1984 
                ("bookmark", json::s(&d.bookmark)),
1985 
                ("change", json::s(&d.change.to_hex())),
1986 
                ("hash", json::s(&d.hash.to_hex())),
1987 
                ("dirty", json::b(d.dirty)),
1988 
            ])
1989 
        );
1990 
    } else {
1991 
        println!("{}", d.line());
1992 
    }
1993 
    Ok(0)
1994 
}
1995
614541c3 Andy McCall ↶ 1996 
pub fn describe(message: &str, change: Option<&str>) -> Result<i32> {
1997 
    let repo = open()?;
1998 
    let h = match change {
1999 
        Some(c) => repo.resolve_change(c)?,
2000 
        None => current_head(&repo)?,
2001 
    };
2002 
    let new = repo.describe(&h, message)?;
631fc897 Andy McCall ↶ 2003 
    let c = repo.store().get_change_meta(&new)?;
75167672 Andy McCall 2004 
    println!(
2005 
        "{} {} {}  {}",
2006 
        ui::done("Described"),
631fc897 Andy McCall ↶ 2007 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2008 
        ui::hash(format!("#{}", new.short(12))),
2009 
        ui::subject(subject_of(message))
2010 
    );
614541c3 Andy McCall ↶ 2011 
    Ok(0)
2012 
}
2013
23b217d7 Andy McCall ↶ 2014 
pub fn amend(message: Option<&str>, into: Option<&str>) -> Result<i32> {
614541c3 Andy McCall ↶ 2015 
    let repo = open()?;
530a0fc6 Andy McCall ↶ 2016 
    let before = repo.view()?;
23b217d7 Andy McCall ↶ 2017 
    let new = match into {
2018 
        Some(spec) => {
2019 
            let target = repo.resolve_change(spec)?;
2020 
            repo.amend_into(&target, message)?
2021 
        }
2022 
        None => repo.amend(message)?,
2023 
    };
631fc897 Andy McCall ↶ 2024 
    let c = repo.store().get_change_meta(&new)?;
75167672 Andy McCall 2025 
    println!(
2026 
        "{} {} {}  {}",
2027 
        ui::done("Amended"),
631fc897 Andy McCall ↶ 2028 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2029 
        ui::hash(format!("#{}", new.short(12))),
2030 
        ui::subject(subject_of(&c.message))
2031 
    );
530a0fc6 Andy McCall ↶ 2032 
    // Rewriting what a remote already has means the next push replaces it
2033 
    // there (oxygen#99): say so now, not when the push is refused.
2034 
    let bookmark = repo.config.bookmark.clone();
2035 
    let (had, has) = (
2036 
        repo.heads_of(&before, &bookmark)?,
2037 
        repo.heads_of(&repo.view()?, &bookmark)?,
2038 
    );
2039 
    for (remote, bookmarks) in &before.remotes {
2040 
        let Some(st) = bookmarks.get(&bookmark) else {
2041 
            continue;
2042 
        };
2043 
        let theirs = repo.store().get_state(st)?.heads;
2044 
        if theirs.iter().any(|h| had.contains(h) && !has.contains(h)) {
2045 
            println!(
2046 
                "  {} {}",
2047 
                ui::caution(),
2048 
                ui::warn(format!(
2049 
                    "{remote}/{bookmark} has the change as it was: the next push of {bookmark} needs --force to replace it"
2050 
                ))
2051 
            );
2052 
        }
2053 
    }
98a1620a Andy McCall ↶ 2054 
    where_now(&repo);
614541c3 Andy McCall ↶ 2055 
    Ok(0)
2056 
}
2057
2c9ddac3 Andy McCall ↶ 2058 
pub fn abandon(change: Option<&str>, revset: Option<&str>, yes: bool) -> Result<i32> {
614541c3 Andy McCall ↶ 2059 
    let repo = open()?;
2c9ddac3 Andy McCall ↶ 2060 
    let Some(r) = revset else {
2061 
        let h = repo.resolve_change(change.unwrap_or_default())?;
2062 
        abandon_one(&repo, h)?;
2063 
        where_now(&repo);
2064 
        return Ok(0);
2065 
    };
2066 
    // A revset: say what it selects, refuse an empty set, ask above a few.
2067 
    let selected = repo.revset(r)?;
2068 
    let wc = repo.working_copy().ok().map(|(h, _)| h);
2069 
    let hashes: Vec<ChangeHash> = selected
2070 
        .hashes
2071 
        .iter()
2072 
        .copied()
2073 
        .filter(|h| Some(*h) != wc)
2074 
        .collect();
2075 
    if hashes.is_empty() {
2076 
        anyhow::bail!("{r:?} selects no change to abandon");
2077 
    }
2078 
    println!(
2079 
        "{} {} selects {}:",
2080 
        ui::section("abandon"),
2081 
        ui::id(r),
2082 
        plural(hashes.len(), "change")
2083 
    );
2084 
    for h in &hashes {
2085 
        if let Some(m) = selected.metas.get(h) {
2086 
            println!(
2087 
                "  {} {}  {}",
2088 
                ui::id(m.change_id.short(8)),
2089 
                ui::hash(format!("#{}", h.short(12))),
2090 
                subject_of(&m.message)
2091 
            );
2092 
        }
2093 
    }
2094 
    const ASK_ABOVE: usize = 5;
2095 
    if hashes.len() > ASK_ABOVE && !yes {
2096 
        anyhow::bail!("that is more than {ASK_ABOVE} changes; pass --yes to abandon them all");
2097 
    }
2098 
    // Newest first: abandoning a change rewrites what depends on it, so a
2099 
    // later member is found again by its ChangeId.
2100 
    let mut done = 0;
2101 
    for h in &hashes {
2102 
        let Some(m) = selected.metas.get(h) else {
2103 
            continue;
2104 
        };
2105 
        let now = match repo.resolve_change(&m.change_id.to_hex()) {
2106 
            Ok(h) => h,
2107 
            Err(_) => continue,
2108 
        };
2109 
        abandon_one(&repo, now)?;
2110 
        done += 1;
2111 
    }
2112 
    println!("{} {}", ui::done("Abandoned"), plural(done, "change"));
2113 
    where_now(&repo);
2114 
    Ok(0)
2115 
}
2116
2117 
fn abandon_one(repo: &Repo, h: ChangeHash) -> Result<()> {
631fc897 Andy McCall ↶ 2118 
    let c = repo.store().get_change_meta(&h)?;
6706bdcf Andy McCall ↶ 2119 
    let notes = repo.abandon(&h)?;
75167672 Andy McCall 2120 
    println!(
2121 
        "{} {} {}  {}",
2122 
        ui::done("Abandoned"),
631fc897 Andy McCall ↶ 2123 
        ui::id(c.change_id.short(8)),
75167672 Andy McCall 2124 
        ui::hash(format!("#{}", h.short(12))),
2125 
        ui::dim("its content remains on disk as uncommitted work if the working copy sat on it")
2126 
    );
6706bdcf Andy McCall ↶ 2127 
    for n in notes {
94084087 Andy McCall ↶ 2128 
        println!("  {} {n}", ui::note());
6706bdcf Andy McCall ↶ 2129 
    }
2c9ddac3 Andy McCall ↶ 2130 
    Ok(())
614541c3 Andy McCall ↶ 2131 
}
252e8cb2 Andy McCall ↶ 2132
2133 
pub fn checkpoint() -> Result<i32> {
2134 
    let repo = open()?;
135212de Andy McCall ↶ 2135 
    let sp = ui::spinner("Writing checkpoint…");
252e8cb2 Andy McCall ↶ 2136 
    let (r, changes, bytes) = repo.checkpoint()?;
75167672 Andy McCall 2137 
    sp.done(&format!(
2138 
        "{} {} of {} ({} bytes) for {}",
2139 
        ui::done("Checkpoint"),
2140 
        ui::hash(format!("#{}", r.short(12))),
2141 
        plural(changes, "change"),
2142 
        bytes,
2143 
        ui::id(&repo.config.bookmark)
2144 
    ));
135212de Andy McCall ↶ 2145 
    Ok(0)
2146 
}
2147
2148 
/// For shell prompts: silent (exit 1) outside a repository, otherwise one line.
694805cc Andy McCall ↶ 2149 
pub fn prompt(format: &str, glyphs: bool, color: Option<&str>) -> Result<i32> {
75167672 Andy McCall 2150 
    let Ok(repo) = Repo::open(&std::env::current_dir()?) else {
2151 
        return Ok(1);
2152 
    };
135212de Andy McCall ↶ 2153 
    let info = repo.quick_status()?;
75167672 Andy McCall 2154 
    let fmt = if glyphs && format == oxy_core::repo::DEFAULT_PROMPT_FORMAT {
2155 
        oxy_core::repo::GLYPH_PROMPT_FORMAT
2156 
    } else {
2157 
        format
2158 
    };
694805cc Andy McCall ↶ 2159 
    let line = match color {
2160 
        Some("bash") => info.format_colored(fmt, ("\\[", "\\]")),
2161 
        Some("zsh") => info.format_colored(fmt, ("%{", "%}")),
2162 
        Some(_) => info.format_colored(fmt, ("", "")),
2163 
        None => info.format(fmt),
2164 
    };
2165 
    println!("{line}");
252e8cb2 Andy McCall ↶ 2166 
    Ok(0)
2167 
}
7421309f Andy McCall ↶ 2168
2169 
pub fn sparse(paths: &[String]) -> Result<i32> {
2170 
    let mut repo = open()?;
2171 
    if paths.is_empty() {
2172 
        if repo.config.sparse_paths.is_empty() {
2173 
            println!("No sparse filter: the whole tree is materialized.");
2174 
        } else {
2175 
            println!("{}", ui::heading("Sparse filter"));
2176 
            for p in &repo.config.sparse_paths {
2177 
                println!("  {}", ui::path(p));
2178 
            }
2179 
        }
2180 
        return Ok(0);
2181 
    }
2182 
    let snap = repo.snapshot("oxy sparse")?;
2183 
    if !snap.wc.tree_ops.is_empty() || !snap.wc.edits.is_empty() {
75167672 Andy McCall 2184 
        anyhow::bail!(
2185 
            "the working copy has changes; commit them before changing the sparse filter"
2186 
        );
7421309f Andy McCall ↶ 2187 
    }
2188 
    repo.config.set("filter.paths", &paths.join(","))?;
2189 
    repo.save_config()?;
2190 
    let heads = repo.bookmark_heads()?;
2191 
    let sp = ui::spinner("Re-checking out with the new filter…");
2192 
    let r = repo.checkout(&heads, true, "oxy sparse (checkout)")?;
75167672 Andy McCall 2193 
    sp.done(&format!(
2194 
        "{} {}: {} written, {} removed",
c07406bc Andy McCall ↶ 2195 
        ui::done("Sparse filter set to"),
75167672 Andy McCall 2196 
        ui::path(paths.join(",")),
2197 
        plural(r.written, "file"),
2198 
        r.removed
2199 
    ));
7421309f Andy McCall ↶ 2200 
    Ok(0)
2201 
}
132b884b Andy McCall ↶ 2202
2203 
pub fn tag_create(name: &str, changes: &[String], message: &str) -> Result<i32> {
2204 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2205 
    repo.snapshot_status("oxy tag")?;
132b884b Andy McCall ↶ 2206 
    let heads = if changes.is_empty() {
2207 
        repo.bookmark_heads()?
2208 
    } else {
2209 
        let mut heads = Vec::new();
2210 
        for c in changes {
2211 
            heads.extend(repo.resolve_heads(c)?);
2212 
        }
2213 
        heads
2214 
    };
2215 
    let t = repo.tag_create(name, &heads, message)?;
2216 
    println!(
94084087 Andy McCall ↶ 2217 
        "{} {} {} {} ({}){}",
2218 
        ui::done("Tagged"),
2219 
        ui::bookmark(&t.name),
2220 
        ui::dim(ui::glyph("→", "->")),
132b884b Andy McCall ↶ 2221 
        ui::hash(format!("#{}", t.state.short(12))),
2222 
        plural(t.heads.len(), "head"),
75167672 Andy McCall 2223 
        t.signer
2224 
            .map(|s| format!(", signed by {s}"))
2225 
            .unwrap_or_else(|| ui::dim(", unsigned"))
132b884b Andy McCall ↶ 2226 
    );
2227 
    Ok(0)
2228 
}
2229
1196b29b Andy McCall ↶ 2230 
pub fn tag_list(as_json: bool) -> Result<i32> {
132b884b Andy McCall ↶ 2231 
    let repo = open()?;
2232 
    let tags = repo.tags()?;
1196b29b Andy McCall ↶ 2233 
    if as_json {
2234 
        println!(
2235 
            "{}",
2236 
            json::arr(tags.iter().map(|t| {
2237 
                json::obj([
2238 
                    ("name", json::s(&t.name)),
2239 
                    ("state", json::s(&t.state.to_hex())),
2240 
                    ("heads", json::hashes(&t.heads)),
2241 
                    ("message", json::s(&t.message)),
75167672 Andy McCall 2242 
                    (
2243 
                        "signer",
2244 
                        json::opt(t.signer.as_ref(), |s| json::s(&s.to_string())),
2245 
                    ),
1196b29b Andy McCall ↶ 2246 
                ])
2247 
            }))
2248 
        );
2249 
        return Ok(0);
2250 
    }
132b884b Andy McCall ↶ 2251 
    if tags.is_empty() {
2252 
        println!("{}", ui::dim("No tags."));
2253 
    }
2254 
    for t in tags {
2255 
        println!(
94084087 Andy McCall ↶ 2256 
            "{} {} {}{}{}{}",
2257 
            ui::ok(ui::glyph("⚑", "#")),
2258 
            ui::bookmark(&t.name),
6a81dbab Andy McCall ↶ 2259 
            // The heads, as `oxy log` shows changes, not the state hash.
2260 
            ui::hash(
2261 
                t.heads
2262 
                    .iter()
2263 
                    .map(|h| format!("#{}", h.short(12)))
2264 
                    .collect::<Vec<_>>()
2265 
                    .join(" ")
2266 
            ),
94084087 Andy McCall ↶ 2267 
            ui::sep() + &ui::dim(plural(t.heads.len(), "head")),
75167672 Andy McCall 2268 
            if t.message.is_empty() {
2269 
                String::new()
2270 
            } else {
2271 
                format!("  {}", ui::subject(subject_of(&t.message)))
2272 
            },
2273 
            t.signer
2274 
                .map(|s| ui::sep() + &ui::ok(format!("{} {s}", ui::glyph("✔", "v"))))
2275 
                .unwrap_or_default()
132b884b Andy McCall ↶ 2276 
        );
2277 
    }
2278 
    Ok(0)
a46f3e4f Andy McCall ↶ 2279 
}
2280
2281 
/// Whether `name` is a bookmark, here or only on a remote: what checkout
2282 
/// and workspace add take as "be on this bookmark" (oxygen#60).
2283 
fn names_bookmark(repo: &oxy_core::repo::Repo, name: &str) -> Result<bool> {
2284 
    Ok(repo.view()?.bookmarks.contains_key(name)
2285 
        || repo
2286 
            .remote_only_bookmarks()?
2287 
            .iter()
2288 
            .any(|b| b.name == name || format!("{}/{}", b.remote, b.name) == name))
132b884b Andy McCall ↶ 2289 
}
4e88e774 Andy McCall ↶ 2290
2291 
pub fn workspace_add(path: &std::path::Path, changes: &[String]) -> Result<i32> {
2292 
    let repo = open()?;
a46f3e4f Andy McCall ↶ 2293 
    // One bookmark named: the new workspace is on it (oxygen#60), not on
2294 
    // this workspace's bookmark with that one's files.
2295 
    if let [name] = changes {
2296 
        if names_bookmark(&repo, name)? {
2297 
            let (local, _) = repo.local_bookmark_for(name)?;
2298 
            let heads = repo.resolve_heads(&local)?;
2299 
            let sp = ui::spinner(&format!("Creating workspace at {}…", path.display()));
2300 
            let ws = repo.workspace_add_on(path, Some(&heads), Some(&local))?;
2301 
            sp.done(&format!(
2302 
                "{} {} (workspace {}) on {}",
2303 
                ui::done("Workspace created at"),
2304 
                ui::path(ws.root().display()),
2305 
                ui::id(ws.workspace().short(8)),
2306 
                ui::bookmark(&local)
2307 
            ));
2308 
            return Ok(0);
2309 
        }
2310 
    }
4e88e774 Andy McCall ↶ 2311 
    let heads = if changes.is_empty() {
2312 
        None
2313 
    } else {
2314 
        let mut heads = Vec::new();
2315 
        for c in changes {
2316 
            heads.extend(repo.resolve_heads(c)?);
2317 
        }
2318 
        Some(heads)
2319 
    };
2320 
    let sp = ui::spinner(&format!("Creating workspace at {}…", path.display()));
2321 
    let ws = repo.workspace_add(path, heads.as_deref())?;
75167672 Andy McCall 2322 
    sp.done(&format!(
2323 
        "{} {} (workspace {})",
2324 
        ui::done("Workspace created at"),
2325 
        ui::path(ws.root().display()),
2326 
        ui::id(ws.workspace().short(8))
2327 
    ));
4e88e774 Andy McCall ↶ 2328 
    Ok(0)
2329 
}
2330
1196b29b Andy McCall ↶ 2331 
pub fn workspace_list(as_json: bool) -> Result<i32> {
4e88e774 Andy McCall ↶ 2332 
    let repo = open()?;
1196b29b Andy McCall ↶ 2333 
    if as_json {
2334 
        println!(
2335 
            "{}",
2336 
            json::arr(repo.workspaces()?.iter().map(|w| {
2337 
                json::obj([
2338 
                    ("id", json::s(&w.id.to_hex())),
2339 
                    ("path", json::s(&w.path.to_string_lossy())),
2340 
                    ("current", json::b(w.current)),
75167672 Andy McCall 2341 
                    (
2342 
                        "working_copy",
2343 
                        json::opt(w.working_copy, |h| json::s(&h.to_hex())),
2344 
                    ),
1196b29b Andy McCall ↶ 2345 
                ])
2346 
            }))
2347 
        );
2348 
        return Ok(0);
2349 
    }
4e88e774 Andy McCall ↶ 2350 
    for w in repo.workspaces()? {
2351 
        println!(
2352 
            "{} {} {}{}",
75167672 Andy McCall 2353 
            if w.current {
2354 
                ui::ok(ui::glyph("●", "*"))
2355 
            } else {
2356 
                ui::dim(ui::glyph("○", "o"))
2357 
            },
4e88e774 Andy McCall ↶ 2358 
            ui::id(w.id.short(8)),
2359 
            ui::path(w.path.display()),
75167672 Andy McCall 2360 
            w.working_copy
2361 
                .map(|h| ui::sep() + &ui::dim(format!("working copy #{}", h.short(12))))
2362 
                .unwrap_or_else(|| ui::sep() + &ui::warn("not in view"))
4e88e774 Andy McCall ↶ 2363 
        );
2364 
    }
2365 
    Ok(0)
2366 
}
2367
2368 
pub fn workspace_forget(spec: &str) -> Result<i32> {
2369 
    let repo = open()?;
2370 
    let all = repo.workspaces()?;
2371 
    let target = std::fs::canonicalize(spec).ok();
75167672 Andy McCall 2372 
    let matches: Vec<_> = all
2373 
        .iter()
2374 
        .filter(|w| w.id.starts_with_hex(spec) || target.as_ref().is_some_and(|t| *t == w.path))
2375 
        .collect();
4e88e774 Andy McCall ↶ 2376 
    let w = match matches.as_slice() {
2377 
        [w] => *w,
2378 
        [] => anyhow::bail!("no workspace matches {spec:?}"),
2379 
        _ => anyhow::bail!("{spec:?} is ambiguous"),
2380 
    };
2381 
    repo.workspace_forget(&w.id)?;
75167672 Andy McCall 2382 
    println!(
2383 
        "{} workspace {} at {}; its files were left in place.",
2384 
        ui::done("Forgot"),
2385 
        ui::id(w.id.short(8)),
2386 
        ui::path(w.path.display())
2387 
    );
4e88e774 Andy McCall ↶ 2388 
    Ok(0)
2389 
}
cdb5beba Andy McCall ↶ 2390
2391 
pub fn lock(path: &str) -> Result<i32> {
2392 
    let repo = open()?;
2393 
    repo.lock_path(path)?;
75167672 Andy McCall 2394 
    println!(
2395 
        "{} {} {}",
2396 
        ui::done("Locked"),
2397 
        ui::path(path),
2398 
        ui::dim("(advisory, local)")
2399 
    );
cdb5beba Andy McCall ↶ 2400 
    Ok(0)
2401 
}
2402
2403 
pub fn unlock(path: &str) -> Result<i32> {
2404 
    let repo = open()?;
2405 
    repo.unlock_path(path)?;
94084087 Andy McCall ↶ 2406 
    println!("{} {}", ui::done("Unlocked"), ui::path(path));
cdb5beba Andy McCall ↶ 2407 
    Ok(0)
2408 
}
23b217d7 Andy McCall ↶ 2409
2410 
pub fn split(change: &str, paths: &[String]) -> Result<i32> {
2411 
    let repo = open()?;
2412 
    let h = repo.resolve_change(change)?;
2413 
    let (h1, h2) = repo.split(&h, paths)?;
631fc897 Andy McCall ↶ 2414 
    let c1 = repo.store().get_change_meta(&h1)?;
2415 
    let c2 = repo.store().get_change_meta(&h2)?;
75167672 Andy McCall 2416 
    println!(
2417 
        "{} into {} {} and {} {}",
2418 
        ui::done("Split"),
631fc897 Andy McCall ↶ 2419 
        ui::id(c1.change_id.short(8)),
75167672 Andy McCall 2420 
        ui::hash(format!("#{}", h1.short(12))),
631fc897 Andy McCall ↶ 2421 
        ui::id(c2.change_id.short(8)),
75167672 Andy McCall 2422 
        ui::hash(format!("#{}", h2.short(12)))
2423 
    );
23b217d7 Andy McCall ↶ 2424 
    Ok(0)
2425 
}
7b9809e6 Andy McCall ↶ 2426
2427 
fn heads_from(repo: &Repo, changes: &[String]) -> Result<Vec<oxy_core::hash::ChangeHash>> {
2428 
    let mut heads = Vec::new();
2429 
    for c in changes {
2430 
        heads.extend(repo.resolve_heads(c)?);
2431 
    }
2432 
    Ok(heads)
2433 
}
2434
4fe7d604 Andy McCall ↶ 2435 
pub fn bookmark_create(name: &str, changes: &[String], upto: bool, only: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2436 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2437 
    repo.snapshot_status("oxy bookmark create")?;
75167672 Andy McCall 2438 
    let heads = if changes.is_empty() {
2439 
        None
2440 
    } else {
4fe7d604 Andy McCall ↶ 2441 
        let named = heads_from(&repo, changes)?;
2442 
        let (_, wc) = repo.working_copy()?;
2443 
        let gap = repo.state_gap(&wc.deps, &named)?;
2444 
        if upto {
2445 
            Some(gap.upto)
2446 
        } else if only || gap.earlier.is_empty() {
2447 
            Some(named)
2448 
        } else {
2449 
            anyhow::bail!(
2450 
                "{name} at {} would lack {} of the current state recorded before it:\n{}\n\
2451 
                 A state is its heads and what they depend on, not everything recorded before them.\n\
2452 
                 Pass --upto for everything of the current state up to {0} (as a Git branch would hold),\n\
2453 
                 or --only for just {0} and what it depends on.",
2454 
                changes.join(" "),
2455 
                plural(gap.earlier.len(), "change"),
2456 
                listed_changes(&repo, &gap.earlier)
2457 
            );
2458 
        }
75167672 Andy McCall 2459 
    };
7b9809e6 Andy McCall ↶ 2460 
    let heads = repo.bookmark_create(name, heads.as_deref())?;
75167672 Andy McCall 2461 
    println!(
2462 
        "{} bookmark {} {} {}",
2463 
        ui::done("Created"),
2464 
        ui::bookmark(name),
2465 
        ui::dim(ui::glyph("→", "->")),
2466 
        ui::dim(plural(heads.len(), "head"))
2467 
    );
2468 
    println!(
2469 
        "  {} {}",
2470 
        ui::note(),
2471 
        ui::dim(format!("switch to it with oxy bookmark switch {name}"))
2472 
    );
7b9809e6 Andy McCall ↶ 2473 
    Ok(0)
2474 
}
2475
4fe7d604 Andy McCall ↶ 2476 
/// Up to five changes, newest last, as `  #hash subject` lines.
2477 
fn listed_changes(repo: &Repo, changes: &[oxy_core::hash::ChangeHash]) -> String {
2478 
    let shown = changes.len().min(5);
2479 
    let mut lines: Vec<String> = changes[changes.len() - shown..]
2480 
        .iter()
2481 
        .map(|h| {
2482 
            let subject = repo
2483 
                .store()
2484 
                .get_change(h)
2485 
                .map(|c| subject_of(&c.message).to_string())
2486 
                .unwrap_or_default();
2487 
            format!("  #{} {subject}", h.short(12))
2488 
        })
2489 
        .collect();
2490 
    if changes.len() > shown {
2491 
        lines.insert(0, format!("  … and {} earlier", changes.len() - shown));
2492 
    }
2493 
    lines.join("\n")
2494 
}
2495
06d16dc2 Andy McCall ↶ 2496 
pub fn bookmark_set(name: &str, changes: &[String], upto: bool, only: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2497 
    let repo = open()?;
cc7a0056 Andy McCall ↶ 2498 
    repo.snapshot_status("oxy bookmark set")?;
06d16dc2 Andy McCall ↶ 2499 
    let named = heads_from(&repo, changes)?;
2500 
    // What the bookmark holds now and the new heads would leave out.
2501 
    let current = repo
2502 
        .bookmarks()?
2503 
        .into_iter()
2504 
        .find(|b| b.name == name)
2505 
        .map(|b| b.heads)
2506 
        .ok_or_else(|| anyhow::anyhow!("no bookmark {name}"))?;
2507 
    let gap = repo.state_gap(&current, &named)?;
2508 
    let heads = if upto {
2509 
        gap.upto
2510 
    } else if only || gap.earlier.is_empty() {
2511 
        named
2512 
    } else {
2513 
        anyhow::bail!(
2514 
            "{name} at {} would lose {} it holds now, recorded before it:\n{}\n\
2515 
             A state is its heads and what they depend on, not everything recorded before them.\n\
2516 
             Pass --upto to keep everything {name} holds up to {0} (as a Git branch would),\n\
2517 
             or --only for just {0} and what it depends on.",
2518 
            changes.join(" "),
2519 
            plural(gap.earlier.len(), "change"),
2520 
            listed_changes(&repo, &gap.earlier)
2521 
        );
2522 
    };
7b9809e6 Andy McCall ↶ 2523 
    let heads = repo.bookmark_set(name, &heads)?;
75167672 Andy McCall 2524 
    println!(
2525 
        "{} bookmark {} {} {}",
2526 
        ui::done("Moved"),
2527 
        ui::bookmark(name),
2528 
        ui::dim(ui::glyph("→", "->")),
2529 
        ui::dim(plural(heads.len(), "head"))
2530 
    );
7b9809e6 Andy McCall ↶ 2531 
    Ok(0)
2532 
}
2533
2534 
pub fn bookmark_delete(name: &str) -> Result<i32> {
2535 
    let repo = open()?;
2536 
    repo.bookmark_delete(name)?;
75167672 Andy McCall 2537 
    println!(
2538 
        "{} bookmark {} {}",
2539 
        ui::done("Deleted"),
2540 
        ui::bookmark(name),
2541 
        ui::dim("(its changes stay until unreachable)")
2542 
    );
7b9809e6 Andy McCall ↶ 2543 
    Ok(0)
2544 
}
2545
bf3a6781 Andy McCall ↶ 2546 
/// Heads with their metadata, newest first.
2547 
fn heads_newest_first(
2548 
    repo: &Repo,
2549 
    heads: &[oxy_core::hash::ChangeHash],
2550 
) -> Vec<(oxy_core::hash::ChangeHash, oxy_core::state::ChangeMeta)> {
2551 
    let mut out: Vec<_> = heads
2552 
        .iter()
2553 
        .filter_map(|h| repo.store().get_change_meta(h).ok().map(|m| (*h, m)))
2554 
        .collect();
2555 
    out.sort_by_key(|(_, m)| std::cmp::Reverse(m.hlc));
2556 
    out
2557 
}
2558
2559 
/// One head as a line: id, hash, author, when, subject.
2560 
fn print_head(
2561 
    repo: &Repo,
2562 
    indent: &str,
2563 
    h: &oxy_core::hash::ChangeHash,
2564 
    m: &oxy_core::state::ChangeMeta,
2565 
) {
2566 
    println!(
2567 
        "{indent}{} {} {}{}{}{}{}",
2568 
        ui::id(m.change_id.short(8)),
2569 
        ui::dim(format!("#{}", &h.to_hex()[..8])),
2570 
        author_name(repo, m),
2571 
        ui::sep(),
2572 
        ui::dim(ui::ago(m.hlc.wall_ms)),
2573 
        ui::sep(),
2574 
        ui::subject(subject_of(&m.message))
2575 
    );
2576 
}
2577
2578 
pub fn bookmark_show(name: Option<&str>, as_json: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2579 
    let repo = open()?;
bf3a6781 Andy McCall ↶ 2580 
    let name = name.unwrap_or(&repo.config.bookmark).to_string();
2581 
    let view = repo.view()?;
2582 
    let st = match view.bookmarks.get(&name) {
2583 
        Some(st) => *st,
2584 
        None => match oxy_core::repo::remote_bookmark(&view, &name) {
2585 
            Some((_, _, st)) => st,
2586 
            None => anyhow::bail!("no bookmark {name}: oxy bookmark list --all lists them"),
2587 
        },
2588 
    };
2589 
    let heads = repo.store().get_state(&st)?.heads;
2590 
    let shown = heads_newest_first(&repo, &heads);
2591 
    if as_json {
2592 
        println!(
2593 
            "{}",
2594 
            json::obj([
2595 
                ("name", json::s(&name)),
2596 
                ("current", json::b(name == repo.config.bookmark)),
2597 
                (
2598 
                    "heads",
2599 
                    json::arr(shown.iter().map(|(h, m)| {
2600 
                        json::obj([
2601 
                            ("hash", json::s(&h.to_hex())),
2602 
                            ("id", json::s(&m.change_id.to_string())),
2603 
                            ("author", json::s(&author_name(&repo, m))),
2604 
                            ("time_ms", json::n(m.hlc.wall_ms)),
2605 
                            ("subject", json::s(subject_of(&m.message))),
2606 
                        ])
2607 
                    }))
2608 
                ),
2609 
            ])
2610 
        );
2611 
        return Ok(0);
2612 
    }
2613 
    println!(
2614 
        "{} {}{}{}",
2615 
        ui::ok(ui::glyph("●", "*")),
2616 
        ui::bookmark(&name),
2617 
        ui::sep(),
2618 
        ui::dim(plural(heads.len(), "head"))
2619 
    );
2620 
    for (h, m) in &shown {
2621 
        print_head(&repo, "  ", h, m);
2622 
    }
2623 
    if heads.len() > 1 {
2624 
        println!(
2625 
            "  {}",
2626 
            ui::dim("None depends on another: the bookmark is all of them and their dependencies.")
2627 
        );
2628 
    }
2629 
    Ok(0)
2630 
}
2631
2632 
pub fn bookmark_list(all: bool, verbose: bool, as_json: bool) -> Result<i32> {
2633 
    let repo = open()?;
14edbaaf Andy McCall ↶ 2634 
    let remote_only = repo.remote_only_bookmarks()?;
c6aa5bd9 Andy McCall ↶ 2635 
    if as_json {
14edbaaf Andy McCall ↶ 2636 
        let mut items: Vec<String> = repo
2637 
            .bookmarks()?
2638 
            .into_iter()
2639 
            .map(|b| {
2640 
                json::obj([
2641 
                    ("name", json::s(&b.name)),
2642 
                    ("heads", json::hashes(&b.heads)),
2643 
                    ("current", json::b(b.current)),
2644 
                    ("ahead", json::opt(b.ahead, json::n)),
2645 
                    ("behind", json::opt(b.behind, json::n)),
42ccf504 Andy McCall ↶ 2646 
                    ("remote", json::opt(b.remote.as_deref(), json::s)),
14edbaaf Andy McCall ↶ 2647 
                ])
2648 
            })
2649 
            .collect();
2650 
        if all {
2651 
            items.extend(remote_only.iter().map(|b| {
2652 
                json::obj([
2653 
                    ("name", json::s(&format!("{}/{}", b.remote, b.name))),
2654 
                    ("heads", json::hashes(&b.heads)),
2655 
                    ("current", json::b(false)),
2656 
                    ("ahead", "null".into()),
2657 
                    ("behind", "null".into()),
2658 
                    ("remote", json::s(&b.remote)),
2659 
                ])
2660 
            }));
2661 
        }
c6aa5bd9 Andy McCall ↶ 2662 
        println!("{}", json::arr(items));
2663 
        return Ok(0);
2664 
    }
7b9809e6 Andy McCall ↶ 2665 
    for b in repo.bookmarks()? {
75167672 Andy McCall 2666 
        let mark = if b.current {
2667 
            ui::ok(ui::glyph("●", "*"))
2668 
        } else {
2669 
            ui::dim(ui::glyph("○", "o"))
2670 
        };
7b9809e6 Andy McCall ↶ 2671 
        let mut tail = String::new();
2672 
        if let Some(n) = b.ahead.filter(|n| *n > 0) {
2673 
            tail += &ui::ok(format!(" {}{n}", ui::glyph("↑", "+")));
2674 
        }
2675 
        if let Some(n) = b.behind.filter(|n| *n > 0) {
2676 
            tail += &ui::warn(format!(" {}{n}", ui::glyph("↓", "-")));
2677 
        }
42ccf504 Andy McCall ↶ 2678 
        // Which remote, when there is a choice (oxygen#83).
2679 
        if !tail.is_empty() && repo.config.remotes.len() > 1 {
2680 
            if let Some(r) = &b.remote {
2681 
                tail += &ui::dim(format!(" {r}"));
2682 
            }
2683 
        }
bf3a6781 Andy McCall ↶ 2684 
        let shown = heads_newest_first(&repo, &b.heads);
2685 
        // The newest head's subject, so a busy bookmark shows its latest work.
2686 
        let head = match shown.first() {
2687 
            Some(_) if verbose => String::new(),
2688 
            Some((_, m)) if b.heads.len() > 1 => format!(
2689 
                "{} {}",
2690 
                ui::dim("newest"),
2691 
                ui::subject(subject_of(&m.message))
2692 
            ),
2693 
            Some((_, m)) => ui::subject(subject_of(&m.message)),
2694 
            None => ui::dim("(empty)"),
2695 
        };
2696 
        let head = if head.is_empty() {
2697 
            head
2698 
        } else {
2699 
            format!("  {head}")
2700 
        };
75167672 Andy McCall 2701 
        println!(
bf3a6781 Andy McCall ↶ 2702 
            "{mark} {}{}{}{tail}{head}",
75167672 Andy McCall 2703 
            ui::bookmark(&b.name),
14edbaaf Andy McCall ↶ 2704 
            ui::sep(),
2705 
            ui::dim(plural(b.heads.len(), "head"))
2706 
        );
bf3a6781 Andy McCall ↶ 2707 
        if verbose {
2708 
            for (h, m) in &shown {
2709 
                print_head(&repo, "    ", h, m);
2710 
            }
2711 
        }
14edbaaf Andy McCall ↶ 2712 
    }
2713 
    if remote_only.is_empty() {
2714 
        return Ok(0);
2715 
    }
2716 
    if !all {
2717 
        println!(
2718 
            "{}",
2719 
            ui::dim(format!(
2720 
                "  and {} only on a remote: oxy bookmark list --all",
2721 
                plural(remote_only.len(), "bookmark")
2722 
            ))
2723 
        );
2724 
        return Ok(0);
2725 
    }
2726 
    for b in &remote_only {
2727 
        println!(
2728 
            "{} {}{}{}",
2729 
            ui::dim(ui::glyph("◌", ".")),
2730 
            ui::dim(format!("{}/{}", b.remote, b.name)),
75167672 Andy McCall 2731 
            ui::sep(),
2732 
            ui::dim(plural(b.heads.len(), "head"))
2733 
        );
7b9809e6 Andy McCall ↶ 2734 
    }
14edbaaf Andy McCall ↶ 2735 
    println!(
2736 
        "  {} {}",
2737 
        ui::note(),
2738 
        ui::dim("oxy bookmark switch NAME makes a local bookmark from a remote's")
2739 
    );
7b9809e6 Andy McCall ↶ 2740 
    Ok(0)
2741 
}
2742
61e3bce7 Andy McCall ↶ 2743 
pub fn bookmark_switch(name: &str, discard: bool, carry: bool) -> Result<i32> {
7b9809e6 Andy McCall ↶ 2744 
    let mut repo = open()?;
4fe7d604 Andy McCall ↶ 2745 
    let from = repo.config.bookmark.clone();
14edbaaf Andy McCall ↶ 2746 
    let (local, created_from) = repo.local_bookmark_for(name)?;
2747 
    if let Some(remote) = created_from {
2748 
        println!(
2749 
            "{} {} from {}",
2750 
            ui::done("Created"),
2751 
            ui::bookmark(&local),
2752 
            ui::dim(format!("{remote}/{local}"))
2753 
        );
2754 
    }
2755 
    let name = local.as_str();
72484195 Andy McCall ↶ 2756 
    // Only behind its remote: take the remote's state, so the switch does
2757 
    // not check out a stale one (oxygen#74).
2758 
    if let Some(n) = repo.catch_up_bookmark(name)? {
2759 
        println!(
2760 
            "{} {} with {}: {} it lacked",
2761 
            ui::done("Caught up"),
2762 
            ui::bookmark(name),
2763 
            ui::dim(format!("{}/{name}", repo.default_remote())),
2764 
            plural(n, "change")
2765 
        );
2766 
    }
7b9809e6 Andy McCall ↶ 2767 
    let sp = ui::spinner(&format!("Switching to {name}…"));
61e3bce7 Andy McCall ↶ 2768 
    let (r, carried) = if carry {
2769 
        repo.bookmark_switch_carry(name)?
2770 
    } else {
2771 
        (repo.bookmark_switch(name, discard)?, vec![])
2772 
    };
75167672 Andy McCall 2773 
    sp.done(&format!(
61e3bce7 Andy McCall ↶ 2774 
        "{} to {}: {} written, {} removed{}",
75167672 Andy McCall 2775 
        ui::done("Switched"),
2776 
        ui::bookmark(name),
2777 
        plural(r.written, "file"),
61e3bce7 Andy McCall ↶ 2778 
        r.removed,
2779 
        if carried.is_empty() {
2780 
            String::new()
2781 
        } else {
2782 
            format!("; carried {}", plural(carried.len(), "changed path"))
2783 
        }
75167672 Andy McCall 2784 
    ));
9b723f69 Andy McCall ↶ 2785 
    print_removed(&r);
7b9809e6 Andy McCall ↶ 2786 
    if r.conflicted {
75167672 Andy McCall 2787 
        println!(
2788 
            "  {} {}",
2789 
            ui::caution(),
2790 
            ui::warn("this state has conflicts; see oxy status")
2791 
        );
4fe7d604 Andy McCall ↶ 2792 
    }
2793 
    // Say when the new state leaves out work the old one had: a state is
2794 
    // its heads and what they depend on, which can be far less than a Git
2795 
    // user expects.
d3cd7ef9 Andy McCall ↶ 2796 
    if r.lacks > 0 {
2797 
        println!(
2798 
            "  {} {}",
2799 
            ui::note(),
2800 
            ui::dim(format!(
2801 
                "{name} lacks {} that {from} has",
2802 
                plural(r.lacks, "change")
2803 
            ))
2804 
        );
7b9809e6 Andy McCall ↶ 2805 
    }
14edbaaf Andy McCall ↶ 2806 
    super::sync::subrepos_behind(&repo);
98a1620a Andy McCall ↶ 2807 
    where_now(&repo);
7b9809e6 Andy McCall ↶ 2808 
    Ok(0)
2809 
}
2810
2811 
pub fn merge(bookmark: &str) -> Result<i32> {
2812 
    let repo = open()?;
2813 
    let sp = ui::spinner(&format!("Merging {bookmark}…"));
2814 
    let r = repo.merge(bookmark)?;
2815 
    if !r.changed {
75167672 Andy McCall 2816 
        sp.done(&format!(
2817 
            "{} {}",
2818 
            ui::ok(ui::glyph("✔", "*")),
2819 
            ui::dim(format!(
2820 
                "{} already contains {bookmark}",
2821 
                repo.config.bookmark
2822 
            ))
2823 
        ));
7b9809e6 Andy McCall ↶ 2824 
        return Ok(0);
2825 
    }
2826 
    sp.done(&format!(
2827 
        "{} {} into {}: now {}{}",
2828 
        ui::done("Merged"),
2829 
        ui::bookmark(bookmark),
2830 
        ui::bookmark(&repo.config.bookmark),
2831 
        plural(r.heads.len(), "head"),
75167672 Andy McCall 2832 
        ui::dim(if r.checked_out {
2833 
            "; working copy updated"
2834 
        } else {
2835 
            "; run oxy checkout to update the working copy"
2836 
        })
7b9809e6 Andy McCall ↶ 2837 
    ));
2838 
    let snap = repo.snapshot("oxy merge")?;
2839 
    if snap.base_snapshot.is_conflicted() {
75167672 Andy McCall 2840 
        println!(
2841 
            "  {} {}",
2842 
            ui::caution(),
2843 
            ui::warn("the result has conflicts; see oxy status")
2844 
        );
7b9809e6 Andy McCall ↶ 2845 
    }
98a1620a Andy McCall ↶ 2846 
    where_now(&repo);
7b9809e6 Andy McCall ↶ 2847 
    Ok(0)
2848 
}
2849
728da0f9 Andy McCall ↶ 2850 
pub fn squash(change: &str, into: &str) -> Result<i32> {
2851 
    let repo = open()?;
2852 
    let c = repo.resolve_change(change)?;
2853 
    let d = repo.resolve_change(into)?;
2854 
    let sp = ui::spinner("Squashing…");
2855 
    let h = repo.squash(&c, &d)?;
631fc897 Andy McCall ↶ 2856 
    let new = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 2857 
    sp.done(&format!(
2858 
        "{} into {} {}  {}",
2859 
        ui::done("Squashed"),
631fc897 Andy McCall ↶ 2860 
        ui::id(new.change_id.short(8)),
75167672 Andy McCall 2861 
        ui::hash(format!("#{}", h.short(12))),
2862 
        ui::subject(subject_of(&new.message))
2863 
    ));
728da0f9 Andy McCall ↶ 2864 
    Ok(0)
2865 
}
2866
e266b7d4 Andy McCall ↶ 2867 
pub fn rebase(change: &str, onto: &[String], into_working_copy: bool) -> Result<i32> {
728da0f9 Andy McCall ↶ 2868 
    let repo = open()?;
2869 
    let c = repo.resolve_change(change)?;
2870 
    let mut heads = Vec::new();
2871 
    for o in onto {
2872 
        heads.extend(repo.resolve_heads(o)?);
2873 
    }
2874 
    let sp = ui::spinner("Rebasing…");
e266b7d4 Andy McCall ↶ 2875 
    let h = match repo.rebase(&c, &heads) {
2876 
        Err(oxy_core::repo::RepoError::Conflicted(_)) if into_working_copy => {
2877 
            let r = repo.rebase_into_working_copy(&c, &heads)?;
2878 
            sp.done(&format!(
2879 
                "{} {} into {}: now {}",
2880 
                ui::done("Merged"),
2881 
                onto.join(" "),
2882 
                ui::bookmark(&repo.config.bookmark),
2883 
                plural(r.heads.len(), "head"),
2884 
            ));
2885 
            if r.checked_out {
2886 
                println!(
2887 
                    "  {} {}",
2888 
                    ui::caution(),
2889 
                    ui::warn("the conflict is in the working copy: fix the marked files (see oxy status), then oxy commit")
2890 
                );
2891 
            } else {
2892 
                println!(
2893 
                    "  {} {}",
2894 
                    ui::caution(),
2895 
                    ui::warn("the working copy has changes of its own: commit or discard them, then oxy checkout to take the conflict in")
2896 
                );
2897 
            }
98a1620a Andy McCall ↶ 2898 
            where_now(&repo);
e266b7d4 Andy McCall ↶ 2899 
            return Ok(0);
2900 
        }
2901 
        other => other?,
2902 
    };
631fc897 Andy McCall ↶ 2903 
    let new = repo.store().get_change_meta(&h)?;
75167672 Andy McCall 2904 
    sp.done(&format!(
2905 
        "{} {} {}  {}",
2906 
        ui::done("Rebased"),
631fc897 Andy McCall ↶ 2907 
        ui::id(new.change_id.short(8)),
75167672 Andy McCall 2908 
        ui::hash(format!("#{}", h.short(12))),
2909 
        ui::dim(format!(
2910 
            "now depends on {}",
2911 
            plural(new.deps.len(), "change")
2912 
        ))
2913 
    ));
98a1620a Andy McCall ↶ 2914 
    where_now(&repo);
728da0f9 Andy McCall ↶ 2915 
    Ok(0)
79b5a90f Andy McCall ↶ 2916 
}
2917
2918 
#[cfg(test)]
2919 
mod tests {
2920 
    use super::*;
2921
2922 
    #[test]
2923 
    fn id_prefixes_agree_with_the_whole_list() {
2924 
        // Ids that share long prefixes, and some that differ only in a
2925 
        // half byte, from a fixed sequence.
2926 
        let mut x: u64 = 0x9e37_79b9_7f4a_7c15;
2927 
        let mut next = || {
2928 
            x ^= x << 13;
2929 
            x ^= x >> 7;
2930 
            x ^= x << 17;
2931 
            x
2932 
        };
2933 
        let mut ids: Vec<[u8; 16]> = Vec::new();
2934 
        for _ in 0..2000 {
2935 
            let mut id = [0u8; 16];
2936 
            id[..8].copy_from_slice(&next().to_le_bytes());
2937 
            id[8..].copy_from_slice(&next().to_le_bytes());
2938 
            let share = (next() % 4) as usize;
2939 
            if let Some(prev) = ids.last() {
2940 
                id[..share].copy_from_slice(&prev[..share]);
2941 
                if next() % 2 == 0 {
2942 
                    id[share] = (prev[share] & 0xf0) | (id[share] & 0x0f);
2943 
                }
2944 
            }
2945 
            ids.push(id);
2946 
        }
2947 
        let hex = |id: &[u8; 16]| oxy_core::ids::ChangeId(*id).to_hex();
2948 
        let whole = unique_prefixes(ids.iter().map(hex));
2949 
        let some = id_prefixes(ids.clone(), ids.iter().copied());
2950 
        for id in &ids {
2951 
            assert_eq!(some[id], whole[&hex(id)], "{}", hex(id));
2952 
        }
2953 
    }
728da0f9 Andy McCall ↶ 2954 
}