config.rs 83.3%

195 of 234 lines run, 38 of 64 functions · run #365 on main · run missed

//! Layered configuration: defaults, the user file, the repository file.

use super::*;

/// Effective settings: defaults, then the user file (`~/.config/oxy/config.toml`,
/// spec §19), then the repository file (`.oxy/config`). Both files are
/// `key = "value"` lines. `save` writes only the repository layer.
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct Config {
    /// Keys set in the repository file (or via `set`), written by `save`.
    repo_layer: BTreeMap<String, String>,
    pub author_name: String,
    pub author_email: String,
    /// The KeyId of the author's identity, once `create_identity` has run.
    pub author_key: Option<KeyId>,
    /// `author.signer` (or `$OXY_SIGNER`): the key that signs and seals in
    /// place of `author.key`, whose identity lists it as a delegate. An
    /// agent sets it to its own key, so its changes carry the human as
    /// author and the agent's signature (spec §14.2, agent workflows §2).
    pub signer_key: Option<KeyId>,
    /// `author.signer = "keyless"`: sign with fresh keys the hub certifies
    /// under the agent's grant, keeping no key on disk (spec §14.7,
    /// oxygenhub#241).
    pub signer_keyless: bool,
    /// `keyless.hub`: the hub that certifies them (default: the default
    /// remote's hub).
    pub keyless_hub: Option<String>,
    /// `core.sign`: sign every change at commit (`true`) or leave signing to
    /// push-time seals (`false`, the spec default).
    pub sign_changes: bool,
    pub bookmark: String,
    /// `remote.<name>.url`.
    pub remotes: BTreeMap<String, String>,
    /// `remote.<name>.token`: bearer token for HTTP pushes.
    pub remote_tokens: BTreeMap<String, String>,
    /// `remote.<name>.ca`: PEM file of extra roots to trust for that remote.
    pub remote_cas: BTreeMap<String, String>,
    /// `core.remote`: the remote `pull`, `fetch` and `push` use when none is
    /// named, for a repository whose remotes include no `origin`.
    pub default_remote: Option<String>,
    /// `git.claim`: a Git import authors the commits whose Git author email
    /// is this repository's identity's with its key (oxygen#97).
    pub git_claim: bool,
    /// `core.op-retention`: days for which operations keep their states reachable (spec §12.1, §21).
    pub op_retention_days: u64,
    /// `core.gc-grace`: days an unreachable object survives, protecting concurrent writers (spec §21).
    pub gc_grace_days: u64,
    /// `core.snapshot-retention`: days for which past operations keep their
    /// working copies reachable (oxygen#98); each workspace's current one is
    /// always kept. A file only ever in a working copy goes with it.
    pub snapshot_retention_days: u64,
    /// `snapshot.max-new-file-size`: a new, untracked file larger than this
    /// is left out of working-copy snapshots and named instead (oxygen#98);
    /// 0 takes in files of any size.
    pub max_new_file: u64,
    /// `core.checkpoint-interval`: changes between automatic checkpoints (spec §11).
    pub checkpoint_interval: u64,
    /// `push.batch-bytes`: about how many bytes of changes and their texts
    /// one request of a long push carries (spec §16.3).
    pub push_batch_bytes: u64,
    /// `filter.max-blob`: blobs larger than this many bytes are fetched lazily (spec §17).
    pub max_blob: Option<u64>,
    /// `filter.paths`: only these subtrees are materialized (spec §17); empty means everything.
    pub sparse_paths: Vec<String>,
    /// `hooks.semantic-deps`: run the semantic-deps hook at commit (spec §20).
    pub semantic_deps: bool,
    /// `revset.<name>`: a saved revset, used as `name()`.
    pub revsets: BTreeMap<String, String>,
    /// `storage.url`: the store the repository's objects and operation
    /// head are kept on (`dir://`, `s3://`, …) instead of `.oxy/objects`
    /// (oxygen#68).
    pub storage_url: Option<String>,
    /// `storage.cache`: the most the local cache in front of that store
    /// holds, in bytes.
    pub storage_cache: u64,
}

impl Config {
    /// Whether the repository's own file sets `key` (as against the user
    /// config or a default).
    pub fn is_repo_set(&self, key: &str) -> bool {
        self.repo_layer.contains_key(key)
    }

    pub(super) fn default_for_user() -> Config {
        let user = std::env::var("USER").unwrap_or_else(|_| "unknown".into());
        Config {
            repo_layer: BTreeMap::new(),
            author_name: std::env::var("OXY_AUTHOR_NAME").unwrap_or_else(|_| user.clone()),
            author_email: std::env::var("OXY_AUTHOR_EMAIL")
                .unwrap_or_else(|_| format!("{user}@localhost")),
            author_key: None,
            signer_key: std::env::var("OXY_SIGNER")
                .ok()
                .and_then(|v| KeyId::from_hex(&v)),
            signer_keyless: std::env::var("OXY_SIGNER").is_ok_and(|v| v == "keyless"),
            keyless_hub: None,
            sign_changes: false,
            bookmark: "main".into(),
            remotes: BTreeMap::new(),
            remote_tokens: BTreeMap::new(),
            remote_cas: BTreeMap::new(),
            default_remote: None,
            git_claim: false,
            op_retention_days: 90,
            gc_grace_days: 14,
            max_new_file: 100 << 20,
            snapshot_retention_days: 7,
            checkpoint_interval: 256,
            push_batch_bytes: 256 << 20,
            max_blob: None,
            sparse_paths: Vec::new(),
            semantic_deps: false,
            revsets: BTreeMap::new(),
            storage_url: None,
            storage_cache: DEFAULT_STORAGE_CACHE,
        }
    }

    /// Set a key in the repository layer, as `oxy config` does.
    pub fn set(&mut self, key: &str, value: &str) -> Result<()> {
        self.apply(key, value)?;
        if value.is_empty() {
            self.repo_layer.remove(key);
        } else {
            self.repo_layer.insert(key.to_string(), value.to_string());
        }
        Ok(())
    }

    /// Set a key in the user file without touching any repository.
    pub fn set_user(user_path: &Path, key: &str, value: &str) -> Result<()> {
        Config::default_for_user().apply(key, value)?;
        let mut entries = read_config_file(user_path)?;
        if value.is_empty() {
            entries.remove(key);
        } else {
            entries.insert(key.to_string(), value.to_string());
        }
        if let Some(parent) = user_path.parent() {
            fs::create_dir_all(parent)?;
        }
        write_config_file(user_path, &entries)
    }

    /// Apply a key to the effective values.
    pub(super) fn apply(&mut self, key: &str, value: &str) -> Result<()> {
        match key {
            "author.name" => self.author_name = value.into(),
            "author.email" => self.author_email = value.into(),
            "author.key" => {
                self.author_key = if value.is_empty() {
                    None
                } else {
                    Some(KeyId::from_hex(value).ok_or_else(|| {
                        RepoError::Msg("author.key must be a 64-character hex KeyId".into())
                    })?)
                }
            }
            "author.signer" => {
                self.signer_keyless = value == "keyless";
                self.signer_key = if value.is_empty() || self.signer_keyless {
                    None
                } else {
                    Some(KeyId::from_hex(value).ok_or_else(|| {
                        RepoError::Msg(
                            "author.signer must be a 64-character hex KeyId, or \"keyless\"".into(),
                        )
                    })?)
                }
            }
            "core.sign" => {
                self.sign_changes = match value {
                    "change" => true,
                    // Empty: unset, the default.
                    "seal" | "" => false,
                    _ => return fail("core.sign must be \"change\" or \"seal\""),
                }
            }
            "workspace.bookmark" => self.bookmark = value.into(),
            "keyless.hub" => self.keyless_hub = (!value.is_empty()).then(|| value.to_string()),
            // Read by the credential store from the user file.
            "auth.helper" => {}
            "core.op-retention" => self.op_retention_days = parse_days(value)?,
            "core.gc-grace" => self.gc_grace_days = parse_days(value)?,
            "snapshot.max-new-file-size" => self.max_new_file = parse_size(value)?,
            "core.snapshot-retention" => self.snapshot_retention_days = parse_days(value)?,
            "filter.max-blob" => {
                self.max_blob = if value.is_empty() {
                    None
                } else {
                    Some(parse_size(value)?)
                }
            }
            "storage.url" => {
                self.storage_url = (!value.is_empty()).then(|| value.to_string());
            }
            "storage.cache" => {
                self.storage_cache = if value.is_empty() {
                    DEFAULT_STORAGE_CACHE
                } else {
                    parse_size(value)?
                }
            }
            "core.remote" => {
                self.default_remote = (!value.is_empty()).then(|| value.to_string());
            }
            "hooks.semantic-deps" => self.semantic_deps = matches!(value, "true" | "1" | "yes"),
            "git.claim" => self.git_claim = matches!(value, "true" | "1" | "yes"),
            "filter.paths" => {
                self.sparse_paths = value
                    .split(',')
                    .map(|p| {
                        p.trim()
                            .trim_start_matches("./")
                            .trim_matches('/')
                            .to_string()
                    })
                    .filter(|p| !p.is_empty())
                    .collect();
            }
            "core.checkpoint-interval" => {
                self.checkpoint_interval = value
                    .parse()
                    .map_err(|_| RepoError::Msg(format!("expected a number, got {value:?}")))?;
            }
            "push.batch-bytes" => {
                self.push_batch_bytes = value.parse().ok().filter(|n| *n > 0).ok_or_else(|| {
                    RepoError::Msg(format!("expected a number of bytes, got {value:?}"))
                })?;
            }
            k if k.starts_with("remote.") => {
                let rest = &k["remote.".len()..];
                let Some((name, field)) = rest.rsplit_once('.') else {
                    return fail(format!("unknown configuration key {key:?}"));
                };
                if name.is_empty() || name.contains('/') {
                    return fail(format!("invalid remote name in {key:?}"));
                }
                let map = match field {
                    "url" => &mut self.remotes,
                    "token" => &mut self.remote_tokens,
                    "ca" => &mut self.remote_cas,
                    _ => return fail(format!("unknown configuration key {key:?}")),
                };
                if value.is_empty() {
                    map.remove(name);
                    if field == "url" {
                        self.remote_tokens.remove(name);
                        self.remote_cas.remove(name);
                    }
                } else {
                    map.insert(name.to_string(), value.into());
                }
            }
            k if k.starts_with("revset.") => {
                let name = &k["revset.".len()..];
                if name.is_empty()
                    || !name
                        .chars()
                        .all(|c| c.is_ascii_alphanumeric() || c == '_' || c == '-')
                {
                    return fail(format!(
                        "a revset's name is letters, digits, _ and -: {key:?}"
                    ));
                }
                if value.is_empty() {
                    self.revsets.remove(name);
                } else {
                    crate::revset::parse(value)
                        .map_err(|e| RepoError::Msg(format!("{key} = {value:?}: {e}")))?;
                    self.revsets.insert(name.to_string(), value.into());
                }
            }
            _ => return fail(format!("unknown configuration key {key:?}")),
        }
        Ok(())
    }

    /// Defaults, then the user file if it exists, then the repository file.
    pub(super) fn load(user_path: Option<&Path>, repo_path: &Path) -> Result<Config> {
        let mut c = Config::default_for_user();
        if let Some(u) = user_path {
            for (k, v) in read_config_file(u)? {
                let _ = c.apply(&k, &v);
            }
        }
        for (k, v) in read_config_file(repo_path)? {
            if c.apply(&k, &v).is_ok() {
                c.repo_layer.insert(k, v);
            }
        }
        Ok(c)
    }

    pub(super) fn save(&self, path: &Path) -> Result<()> {
        write_config_file(path, &self.repo_layer)
    }

    /// Keys explicitly set for this repository.
    pub fn repo_layer(&self) -> &BTreeMap<String, String> {
        &self.repo_layer
    }
}

/// A byte count with an optional `K`, `M`, or `G` suffix (binary units).
/// `storage.cache` when unset: 2 GiB.
pub const DEFAULT_STORAGE_CACHE: u64 = 2 << 30;

pub fn parse_size(v: &str) -> Result<u64> {
    let v = v.trim();
    let (num, mult) = match v.chars().last() {
        Some('K' | 'k') => (&v[..v.len() - 1], 1u64 << 10),
        Some('M' | 'm') => (&v[..v.len() - 1], 1u64 << 20),
        Some('G' | 'g') => (&v[..v.len() - 1], 1u64 << 30),
        _ => (v, 1),
    };
    let n: u64 = num
        .trim()
        .parse()
        .map_err(|_| RepoError::Msg(format!("expected a size like 1M, got {v:?}")))?;
    Ok(n * mult)
}

/// A count of days, optionally suffixed `d`.
fn parse_days(v: &str) -> Result<u64> {
    v.trim_end_matches('d')
        .parse()
        .map_err(|_| RepoError::Msg(format!("expected a number of days, got {v:?}")))
}

/// Read `key = "value"` lines; a missing file is empty.
pub fn read_config_file(path: &Path) -> Result<BTreeMap<String, String>> {
    let text = match fs::read_to_string(path) {
        Ok(t) => t,
        Err(e) if e.kind() == std::io::ErrorKind::NotFound => return Ok(BTreeMap::new()),
        Err(e) => return Err(e.into()),
    };
    let mut out = BTreeMap::new();
    for line in text.lines() {
        let line = line.trim();
        if line.is_empty() || line.starts_with('#') {
            continue;
        }
        let Some((k, v)) = line.split_once('=') else {
            continue;
        };
        out.insert(k.trim().to_string(), v.trim().trim_matches('"').to_string());
    }
    Ok(out)
}

fn write_config_file(path: &Path, entries: &BTreeMap<String, String>) -> Result<()> {
    let text: String = entries
        .iter()
        .map(|(k, v)| format!("{k} = \"{v}\"\n"))
        .collect();
    write_atomic(path, text.as_bytes())
}

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1		//! Layered configuration: defaults, the user file, the repository file.
2
3		use super::*;
4
5		/// Effective settings: defaults, then the user file (`~/.config/oxy/config.toml`,
6		/// spec §19), then the repository file (`.oxy/config`). Both files are
7		/// `key = "value"` lines. `save` writes only the repository layer.
8		#[derive(Clone, Debug, PartialEq, Eq)]
9		pub struct Config {
10		/// Keys set in the repository file (or via `set`), written by `save`.
11		repo_layer: BTreeMap<String, String>,
12		pub author_name: String,
13		pub author_email: String,
14		/// The KeyId of the author's identity, once `create_identity` has run.
15		pub author_key: Option<KeyId>,
16		/// `author.signer` (or `$OXY_SIGNER`): the key that signs and seals in
17		/// place of `author.key`, whose identity lists it as a delegate. An
18		/// agent sets it to its own key, so its changes carry the human as
19		/// author and the agent's signature (spec §14.2, agent workflows §2).
20		pub signer_key: Option<KeyId>,
21		/// `author.signer = "keyless"`: sign with fresh keys the hub certifies
22		/// under the agent's grant, keeping no key on disk (spec §14.7,
23		/// oxygenhub#241).
24		pub signer_keyless: bool,
25		/// `keyless.hub`: the hub that certifies them (default: the default
26		/// remote's hub).
27		pub keyless_hub: Option<String>,
28		/// `core.sign`: sign every change at commit (`true`) or leave signing to
29		/// push-time seals (`false`, the spec default).
30		pub sign_changes: bool,
31		pub bookmark: String,
32		/// `remote.<name>.url`.
33		pub remotes: BTreeMap<String, String>,
34		/// `remote.<name>.token`: bearer token for HTTP pushes.
35		pub remote_tokens: BTreeMap<String, String>,
36		/// `remote.<name>.ca`: PEM file of extra roots to trust for that remote.
37		pub remote_cas: BTreeMap<String, String>,
38		/// `core.remote`: the remote `pull`, `fetch` and `push` use when none is
39		/// named, for a repository whose remotes include no `origin`.
40		pub default_remote: Option<String>,
41		/// `git.claim`: a Git import authors the commits whose Git author email
42		/// is this repository's identity's with its key (oxygen#97).
43		pub git_claim: bool,
44		/// `core.op-retention`: days for which operations keep their states reachable (spec §12.1, §21).
45		pub op_retention_days: u64,
46		/// `core.gc-grace`: days an unreachable object survives, protecting concurrent writers (spec §21).
47		pub gc_grace_days: u64,
48		/// `core.snapshot-retention`: days for which past operations keep their
49		/// working copies reachable (oxygen#98); each workspace's current one is
50		/// always kept. A file only ever in a working copy goes with it.
51		pub snapshot_retention_days: u64,
52		/// `snapshot.max-new-file-size`: a new, untracked file larger than this
53		/// is left out of working-copy snapshots and named instead (oxygen#98);
54		/// 0 takes in files of any size.
55		pub max_new_file: u64,
56		/// `core.checkpoint-interval`: changes between automatic checkpoints (spec §11).
57		pub checkpoint_interval: u64,
58		/// `push.batch-bytes`: about how many bytes of changes and their texts
59		/// one request of a long push carries (spec §16.3).
60		pub push_batch_bytes: u64,
61		/// `filter.max-blob`: blobs larger than this many bytes are fetched lazily (spec §17).
62		pub max_blob: Option<u64>,
63		/// `filter.paths`: only these subtrees are materialized (spec §17); empty means everything.
64		pub sparse_paths: Vec<String>,
65		/// `hooks.semantic-deps`: run the semantic-deps hook at commit (spec §20).
66		pub semantic_deps: bool,
67		/// `revset.<name>`: a saved revset, used as `name()`.
68		pub revsets: BTreeMap<String, String>,
69		/// `storage.url`: the store the repository's objects and operation
70		/// head are kept on (`dir://`, `s3://`, …) instead of `.oxy/objects`
71		/// (oxygen#68).
72		pub storage_url: Option<String>,
73		/// `storage.cache`: the most the local cache in front of that store
74		/// holds, in bytes.
75		pub storage_cache: u64,
76		}
77
78		impl Config {
79		/// Whether the repository's own file sets `key` (as against the user
80		/// config or a default).
81	2×	pub fn is_repo_set(&self, key: &str) -> bool {
82	2×	self.repo_layer.contains_key(key)
83	2×	}
84
85	3140×	pub(super) fn default_for_user() -> Config {
86	3140×	let user = std::env::var("USER").unwrap_or_else(\|_\| "unknown".into());
87		Config {
88	3140×	repo_layer: BTreeMap::new(),
89	3140×	author_name: std::env::var("OXY_AUTHOR_NAME").unwrap_or_else(\|_\| user.clone()),
90	3140×	author_email: std::env::var("OXY_AUTHOR_EMAIL")
91	3140×	.unwrap_or_else(\|_\| format!("{user}@localhost")),
92	3140×	author_key: None,
93	3140×	signer_key: std::env::var("OXY_SIGNER")
94	3140×	.ok()
95	3140×	.and_then(\|v\| KeyId::from_hex(&v)),
96	3140×	signer_keyless: std::env::var("OXY_SIGNER").is_ok_and(\|v\| v == "keyless"),
97	3140×	keyless_hub: None,
98		sign_changes: false,
99	3140×	bookmark: "main".into(),
100	3140×	remotes: BTreeMap::new(),
101	3140×	remote_tokens: BTreeMap::new(),
102	3140×	remote_cas: BTreeMap::new(),
103	3140×	default_remote: None,
104		git_claim: false,
105		op_retention_days: 90,
106		gc_grace_days: 14,
107	3140×	max_new_file: 100 << 20,
108		snapshot_retention_days: 7,
109		checkpoint_interval: 256,
110	3140×	push_batch_bytes: 256 << 20,
111	3140×	max_blob: None,
112	3140×	sparse_paths: Vec::new(),
113		semantic_deps: false,
114	3140×	revsets: BTreeMap::new(),
115	3140×	storage_url: None,
116		storage_cache: DEFAULT_STORAGE_CACHE,
117		}
118	3140×	}
119
120		/// Set a key in the repository layer, as `oxy config` does.
121	516×	pub fn set(&mut self, key: &str, value: &str) -> Result<()> {
122	516×	self.apply(key, value)?;
123	516×	if value.is_empty() {
124	4×	self.repo_layer.remove(key);
125	512×	} else {
126	512×	self.repo_layer.insert(key.to_string(), value.to_string());
127	512×	}
128	516×	Ok(())
129	516×	}
130
131		/// Set a key in the user file without touching any repository.
132	178×	pub fn set_user(user_path: &Path, key: &str, value: &str) -> Result<()> {
133	178×	Config::default_for_user().apply(key, value)?;
134	177×	let mut entries = read_config_file(user_path)?;
135	177×	if value.is_empty() {
136	0×	entries.remove(key);
137	177×	} else {
138	177×	entries.insert(key.to_string(), value.to_string());
139	177×	}
140	177×	if let Some(parent) = user_path.parent() {
141	177×	fs::create_dir_all(parent)?;
142	0×	}
143	177×	write_config_file(user_path, &entries)
144	178×	}
145
146		/// Apply a key to the effective values.
147	1891×	pub(super) fn apply(&mut self, key: &str, value: &str) -> Result<()> {
148	3×	match key {
149	1891×	"author.name" => self.author_name = value.into(),
150	1563×	"author.email" => self.author_email = value.into(),
151	1235×	"author.key" => {
152	334×	self.author_key = if value.is_empty() {
153	0×	None
154		} else {
155	334×	Some(KeyId::from_hex(value).ok_or_else(\|\| {
156	0×	RepoError::Msg("author.key must be a 64-character hex KeyId".into())
157	0×	})?)
158		}
159		}
160	901×	"author.signer" => {
161	19×	self.signer_keyless = value == "keyless";
162	19×	self.signer_key = if value.is_empty() \|\| self.signer_keyless {
163	2×	None
164		} else {
165	17×	Some(KeyId::from_hex(value).ok_or_else(\|\| {
166	0×	RepoError::Msg(
167	0×	"author.signer must be a 64-character hex KeyId, or \"keyless\"".into(),
168	0×	)
169	0×	})?)
170		}
171		}
172	882×	"core.sign" => {
173	95×	self.sign_changes = match value {
174	95×	"change" => true,
175		// Empty: unset, the default.
176	7×	"seal" \| "" => false,
177	0×	_ => return fail("core.sign must be \"change\" or \"seal\""),
178		}
179		}
180	787×	"workspace.bookmark" => self.bookmark = value.into(),
181	783×	"keyless.hub" => self.keyless_hub = (!value.is_empty()).then(\|\| value.to_string()),
182		// Read by the credential store from the user file.
183	783×	"auth.helper" => {}
184	783×	"core.op-retention" => self.op_retention_days = parse_days(value)?,
185	771×	"core.gc-grace" => self.gc_grace_days = parse_days(value)?,
186	771×	"snapshot.max-new-file-size" => self.max_new_file = parse_size(value)?,
187	771×	"core.snapshot-retention" => self.snapshot_retention_days = parse_days(value)?,
188	771×	"filter.max-blob" => {
189	5×	self.max_blob = if value.is_empty() {
190	0×	None
191		} else {
192	5×	Some(parse_size(value)?)
193		}
194		}
195	766×	"storage.url" => {
196	5×	self.storage_url = (!value.is_empty()).then(\|\| value.to_string());
197		}
198	761×	"storage.cache" => {
199	0×	self.storage_cache = if value.is_empty() {
200	0×	DEFAULT_STORAGE_CACHE
201		} else {
202	0×	parse_size(value)?
203		}
204		}
205	761×	"core.remote" => {
206	1×	self.default_remote = (!value.is_empty()).then(\|\| value.to_string());
207		}
208	760×	"hooks.semantic-deps" => self.semantic_deps = matches!(value, "true" \| "1" \| "yes"),
209	759×	"git.claim" => self.git_claim = matches!(value, "true" \| "1" \| "yes"),
210	757×	"filter.paths" => {
211	3×	self.sparse_paths = value
212	3×	.split(',')
213	4×	.map(\|p\| {
214	4×	p.trim()
215	4×	.trim_start_matches("./")
216	4×	.trim_matches('/')
217	4×	.to_string()
218	4×	})
219	4×	.filter(\|p\| !p.is_empty())
220	3×	.collect();
221		}
222	754×	"core.checkpoint-interval" => {
223	3×	self.checkpoint_interval = value
224	3×	.parse()
225	3×	.map_err(\|_\| RepoError::Msg(format!("expected a number, got {value:?}")))?;
226		}
227	751×	"push.batch-bytes" => {
228	1×	self.push_batch_bytes = value.parse().ok().filter(\|n\| *n > 0).ok_or_else(\|\| {
229	0×	RepoError::Msg(format!("expected a number of bytes, got {value:?}"))
230	0×	})?;
231		}
232	750×	k if k.starts_with("remote.") => {
233	747×	let rest = &k["remote.".len()..];
234	747×	let Some((name, field)) = rest.rsplit_once('.') else {
235	0×	return fail(format!("unknown configuration key {key:?}"));
236		};
237	747×	if name.is_empty() \|\| name.contains('/') {
238	0×	return fail(format!("invalid remote name in {key:?}"));
239	747×	}
240	747×	let map = match field {
241	747×	"url" => &mut self.remotes,
242	14×	"token" => &mut self.remote_tokens,
243	4×	"ca" => &mut self.remote_cas,
244	0×	_ => return fail(format!("unknown configuration key {key:?}")),
245		};
246	747×	if value.is_empty() {
247	4×	map.remove(name);
248	4×	if field == "url" {
249	3×	self.remote_tokens.remove(name);
250	3×	self.remote_cas.remove(name);
251	3×	}
252	743×	} else {
253	743×	map.insert(name.to_string(), value.into());
254	743×	}
255		}
256	3×	k if k.starts_with("revset.") => {
257	3×	let name = &k["revset.".len()..];
258	3×	if name.is_empty()
259	3×	\|\| !name
260	3×	.chars()
261	11×	.all(\|c\| c.is_ascii_alphanumeric() \|\| c == '_' \|\| c == '-')
262		{
263	0×	return fail(format!(
264		"a revset's name is letters, digits, _ and -: {key:?}"
265		));
266	3×	}
267	3×	if value.is_empty() {
268	0×	self.revsets.remove(name);
269	0×	} else {
270	3×	crate::revset::parse(value)
271	3×	.map_err(\|e\| RepoError::Msg(format!("{key} = {value:?}: {e}")))?;
272	2×	self.revsets.insert(name.to_string(), value.into());
273		}
274		}
275	0×	_ => return fail(format!("unknown configuration key {key:?}")),
276		}
277	1890×	Ok(())
278	1891×	}
279
280		/// Defaults, then the user file if it exists, then the repository file.
281	2962×	pub(super) fn load(user_path: Option<&Path>, repo_path: &Path) -> Result<Config> {
282	2962×	let mut c = Config::default_for_user();
283	2962×	if let Some(u) = user_path {
284	2962×	for (k, v) in read_config_file(u)? {
285	443×	let _ = c.apply(&k, &v);
286	443×	}
287	0×	}
288	2962×	for (k, v) in read_config_file(repo_path)? {
289	754×	if c.apply(&k, &v).is_ok() {
290	754×	c.repo_layer.insert(k, v);
291	754×	}
292		}
293	2962×	Ok(c)
294	2962×	}
295
296	983×	pub(super) fn save(&self, path: &Path) -> Result<()> {
297	983×	write_config_file(path, &self.repo_layer)
298	983×	}
299
300		/// Keys explicitly set for this repository.
301	21×	pub fn repo_layer(&self) -> &BTreeMap<String, String> {
302	21×	&self.repo_layer
303	21×	}
304		}
305
306		/// A byte count with an optional `K`, `M`, or `G` suffix (binary units).
307		/// `storage.cache` when unset: 2 GiB.
308		pub const DEFAULT_STORAGE_CACHE: u64 = 2 << 30;
309
310	7×	pub fn parse_size(v: &str) -> Result<u64> {
311	7×	let v = v.trim();
312	7×	let (num, mult) = match v.chars().last() {
313	1×	Some('K' \| 'k') => (&v[..v.len() - 1], 1u64 << 10),
314	1×	Some('M' \| 'm') => (&v[..v.len() - 1], 1u64 << 20),
315	0×	Some('G' \| 'g') => (&v[..v.len() - 1], 1u64 << 30),
316	5×	_ => (v, 1),
317		};
318	7×	let n: u64 = num
319	7×	.trim()
320	7×	.parse()
321	7×	.map_err(\|_\| RepoError::Msg(format!("expected a size like 1M, got {v:?}")))?;
322	6×	Ok(n * mult)
323	7×	}
324
325		/// A count of days, optionally suffixed `d`.
326	12×	fn parse_days(v: &str) -> Result<u64> {
327	12×	v.trim_end_matches('d')
328	12×	.parse()
329	12×	.map_err(\|_\| RepoError::Msg(format!("expected a number of days, got {v:?}")))
330	12×	}
331
332		/// Read `key = "value"` lines; a missing file is empty.
333	6652×	pub fn read_config_file(path: &Path) -> Result<BTreeMap<String, String>> {
334	6652×	let text = match fs::read_to_string(path) {
335	2667×	Ok(t) => t,
336	3985×	Err(e) if e.kind() == std::io::ErrorKind::NotFound => return Ok(BTreeMap::new()),
337	0×	Err(e) => return Err(e.into()),
338		};
339	2667×	let mut out = BTreeMap::new();
340	2667×	for line in text.lines() {
341	1546×	let line = line.trim();
342	1546×	if line.is_empty() \|\| line.starts_with('#') {
343	0×	continue;
344	1546×	}
345	1546×	let Some((k, v)) = line.split_once('=') else {
346	0×	continue;
347		};
348	1546×	out.insert(k.trim().to_string(), v.trim().trim_matches('"').to_string());
349		}
350	2667×	Ok(out)
351	6652×	}
352
353	1160×	fn write_config_file(path: &Path, entries: &BTreeMap<String, String>) -> Result<()> {
354	1160×	let text: String = entries
355	1160×	.iter()
356	1160×	.map(\|(k, v)\| format!("{k} = \"{v}\"\n"))
357	1160×	.collect();
358	1160×	write_atomic(path, text.as_bytes())
359	1160×	}

Coverage / crates/oxy-core/src/repo/config.rs 83.3%

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