git_worktree_manager/
constants.rs

1/// Constants and default values for git-worktree-manager.
2///
3use std::collections::HashMap;
4use std::path::{Path, PathBuf};
5use std::sync::LazyLock;
6
7use regex::Regex;
8use serde::{Deserialize, Serialize};
9
10/// Pre-compiled regex patterns for branch name sanitization.
11static UNSAFE_RE: LazyLock<Regex> =
12    LazyLock::new(|| Regex::new(r#"[/<>:"|?*\\#@&;$`!~%^()\[\]{}=+]+"#).unwrap());
13static WHITESPACE_RE: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"\s+").unwrap());
14static MULTI_HYPHEN_RE: LazyLock<Regex> = LazyLock::new(|| Regex::new(r"-+").unwrap());
15
16/// Terminal launch methods for AI tool execution.
17#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
18#[serde(rename_all = "kebab-case")]
19pub enum LaunchMethod {
20    Foreground,
21    Detach,
22    // iTerm (macOS)
23    ItermWindow,
24    ItermTab,
25    ItermPaneH,
26    ItermPaneV,
27    // tmux
28    Tmux,
29    TmuxWindow,
30    TmuxPaneH,
31    TmuxPaneV,
32    // Zellij
33    Zellij,
34    ZellijTab,
35    ZellijPaneH,
36    ZellijPaneV,
37    // WezTerm
38    WeztermWindow,
39    WeztermTab,
40    WeztermPaneH,
41    WeztermPaneV,
42}
43
44impl LaunchMethod {
45    /// Convert to the canonical kebab-case string.
46    pub fn as_str(&self) -> &'static str {
47        match self {
48            Self::Foreground => "foreground",
49            Self::Detach => "detach",
50            Self::ItermWindow => "iterm-window",
51            Self::ItermTab => "iterm-tab",
52            Self::ItermPaneH => "iterm-pane-h",
53            Self::ItermPaneV => "iterm-pane-v",
54            Self::Tmux => "tmux",
55            Self::TmuxWindow => "tmux-window",
56            Self::TmuxPaneH => "tmux-pane-h",
57            Self::TmuxPaneV => "tmux-pane-v",
58            Self::Zellij => "zellij",
59            Self::ZellijTab => "zellij-tab",
60            Self::ZellijPaneH => "zellij-pane-h",
61            Self::ZellijPaneV => "zellij-pane-v",
62            Self::WeztermWindow => "wezterm-window",
63            Self::WeztermTab => "wezterm-tab",
64            Self::WeztermPaneH => "wezterm-pane-h",
65            Self::WeztermPaneV => "wezterm-pane-v",
66        }
67    }
68
69    /// Parse from a kebab-case string.
70    pub fn from_str_opt(s: &str) -> Option<Self> {
71        match s {
72            "foreground" => Some(Self::Foreground),
73            "detach" => Some(Self::Detach),
74            "iterm-window" => Some(Self::ItermWindow),
75            "iterm-tab" => Some(Self::ItermTab),
76            "iterm-pane-h" => Some(Self::ItermPaneH),
77            "iterm-pane-v" => Some(Self::ItermPaneV),
78            "tmux" => Some(Self::Tmux),
79            "tmux-window" => Some(Self::TmuxWindow),
80            "tmux-pane-h" => Some(Self::TmuxPaneH),
81            "tmux-pane-v" => Some(Self::TmuxPaneV),
82            "zellij" => Some(Self::Zellij),
83            "zellij-tab" => Some(Self::ZellijTab),
84            "zellij-pane-h" => Some(Self::ZellijPaneH),
85            "zellij-pane-v" => Some(Self::ZellijPaneV),
86            "wezterm-window" => Some(Self::WeztermWindow),
87            "wezterm-tab" => Some(Self::WeztermTab),
88            "wezterm-pane-h" => Some(Self::WeztermPaneH),
89            "wezterm-pane-v" => Some(Self::WeztermPaneV),
90            _ => None,
91        }
92    }
93}
94
95impl std::fmt::Display for LaunchMethod {
96    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
97        f.write_str(self.as_str())
98    }
99}
100
101/// Build the alias map for launch methods.
102/// First letter: i=iTerm, t=tmux, z=Zellij, w=WezTerm
103/// Second: w=window, t=tab, p=pane
104/// For panes: h=horizontal, v=vertical
105pub fn launch_method_aliases() -> HashMap<&'static str, &'static str> {
106    HashMap::from([
107        ("fg", "foreground"),
108        ("d", "detach"),
109        // iTerm
110        ("i-w", "iterm-window"),
111        ("i-t", "iterm-tab"),
112        ("i-p-h", "iterm-pane-h"),
113        ("i-p-v", "iterm-pane-v"),
114        // tmux
115        ("t", "tmux"),
116        ("t-w", "tmux-window"),
117        ("t-p-h", "tmux-pane-h"),
118        ("t-p-v", "tmux-pane-v"),
119        // Zellij
120        ("z", "zellij"),
121        ("z-t", "zellij-tab"),
122        ("z-p-h", "zellij-pane-h"),
123        ("z-p-v", "zellij-pane-v"),
124        // WezTerm
125        ("w-w", "wezterm-window"),
126        ("w-t", "wezterm-tab"),
127        ("w-p-h", "wezterm-pane-h"),
128        ("w-p-v", "wezterm-pane-v"),
129    ])
130}
131
132/// Seconds in one day (24 * 60 * 60).
133pub const SECS_PER_DAY: u64 = 86400;
134
135/// Seconds in one day as f64 (for floating-point age calculations).
136pub const SECS_PER_DAY_F64: f64 = 86400.0;
137
138/// Minimum required Git version for worktree features.
139pub const MIN_GIT_VERSION: &str = "2.31.0";
140
141/// Minimum Git major version.
142pub const MIN_GIT_VERSION_MAJOR: u32 = 2;
143
144/// Minimum Git minor version (when major == MIN_GIT_VERSION_MAJOR).
145pub const MIN_GIT_VERSION_MINOR: u32 = 31;
146
147/// Timeout in seconds for AI tool execution (e.g., PR description generation).
148pub const AI_TOOL_TIMEOUT_SECS: u64 = 60;
149
150/// Poll interval in milliseconds when waiting for AI tool completion.
151pub const AI_TOOL_POLL_MS: u64 = 100;
152
153/// Maximum session name length for tmux/zellij compatibility.
154/// Zellij uses Unix sockets which have a ~108 byte path limit.
155pub const MAX_SESSION_NAME_LENGTH: usize = 50;
156
157/// Claude native session path prefix length threshold.
158pub const CLAUDE_SESSION_PREFIX_LENGTH: usize = 200;
159
160/// Git config key templates for metadata storage.
161pub const CONFIG_KEY_BASE_BRANCH: &str = "branch.{}.worktreeBase";
162pub const CONFIG_KEY_BASE_PATH: &str = "worktree.{}.basePath";
163pub const CONFIG_KEY_INTENDED_BRANCH: &str = "worktree.{}.intendedBranch";
164
165/// Format a git config key by replacing `{}` with the branch name.
166pub fn format_config_key(template: &str, branch: &str) -> String {
167    template.replace("{}", branch)
168}
169
170/// Return the user's home directory, falling back to `"."` if unavailable.
171pub fn home_dir_or_fallback() -> PathBuf {
172    dirs::home_dir().unwrap_or_else(|| PathBuf::from("."))
173}
174
175/// Compute the age of a file in fractional days, or `None` on error.
176pub fn path_age_days(path: &Path) -> Option<f64> {
177    let mtime = path.metadata().and_then(|m| m.modified()).ok()?;
178    std::time::SystemTime::now()
179        .duration_since(mtime)
180        .ok()
181        .map(|d| d.as_secs_f64() / SECS_PER_DAY_F64)
182}
183
184/// Check if a semver version string meets a minimum (major, minor).
185pub fn version_meets_minimum(version_str: &str, min_major: u32, min_minor: u32) -> bool {
186    let parts: Vec<u32> = version_str
187        .split('.')
188        .filter_map(|p| p.parse().ok())
189        .collect();
190    parts.len() >= 2 && (parts[0] > min_major || (parts[0] == min_major && parts[1] >= min_minor))
191}
192
193/// Convert branch name to safe directory name.
194///
195/// Handles branch names with slashes (feat/auth), special characters,
196/// and other filesystem-unsafe characters.
197///
198/// # Examples
199/// ```
200/// use git_worktree_manager::constants::sanitize_branch_name;
201/// assert_eq!(sanitize_branch_name("feat/auth"), "feat-auth");
202/// assert_eq!(sanitize_branch_name("feature/user@login"), "feature-user-login");
203/// assert_eq!(sanitize_branch_name("hotfix/v2.0"), "hotfix-v2.0");
204/// ```
205pub fn sanitize_branch_name(branch_name: &str) -> String {
206    let safe = UNSAFE_RE.replace_all(branch_name, "-");
207    let safe = WHITESPACE_RE.replace_all(&safe, "-");
208    let safe = MULTI_HYPHEN_RE.replace_all(&safe, "-");
209    let safe = safe.trim_matches('-');
210
211    if safe.is_empty() {
212        "worktree".to_string()
213    } else {
214        safe.to_string()
215    }
216}
217
218/// Generate default worktree path: `../<repo>-<branch>`.
219pub fn default_worktree_path(repo_path: &Path, branch_name: &str) -> PathBuf {
220    let repo_path = strip_unc(
221        repo_path
222            .canonicalize()
223            .unwrap_or_else(|_| repo_path.to_path_buf()),
224    );
225    let safe_branch = sanitize_branch_name(branch_name);
226    let repo_name = repo_path
227        .file_name()
228        .map(|n| n.to_string_lossy().to_string())
229        .unwrap_or_else(|| "repo".to_string());
230
231    repo_path
232        .parent()
233        .unwrap_or(repo_path.as_path())
234        .join(format!("{}-{}", repo_name, safe_branch))
235}
236
237/// Strip Windows UNC path prefix (`\\?\`) which `canonicalize()` adds.
238/// Git doesn't understand UNC paths, so we must strip them.
239pub fn strip_unc(path: PathBuf) -> PathBuf {
240    #[cfg(target_os = "windows")]
241    {
242        let s = path.to_string_lossy();
243        if let Some(stripped) = s.strip_prefix(r"\\?\") {
244            return PathBuf::from(stripped);
245        }
246    }
247    path
248}
249
250#[cfg(test)]
251mod tests {
252    use super::*;
253
254    #[test]
255    fn test_sanitize_branch_name() {
256        assert_eq!(sanitize_branch_name("feat/auth"), "feat-auth");
257        assert_eq!(sanitize_branch_name("bugfix/issue-123"), "bugfix-issue-123");
258        assert_eq!(
259            sanitize_branch_name("feature/user@login"),
260            "feature-user-login"
261        );
262        assert_eq!(sanitize_branch_name("hotfix/v2.0"), "hotfix-v2.0");
263        assert_eq!(sanitize_branch_name("///"), "worktree");
264        assert_eq!(sanitize_branch_name(""), "worktree");
265        assert_eq!(sanitize_branch_name("simple"), "simple");
266    }
267
268    #[test]
269    fn test_launch_method_roundtrip() {
270        for method in [
271            LaunchMethod::Foreground,
272            LaunchMethod::Detach,
273            LaunchMethod::ItermWindow,
274            LaunchMethod::Tmux,
275            LaunchMethod::Zellij,
276            LaunchMethod::WeztermTab,
277        ] {
278            let s = method.as_str();
279            assert_eq!(LaunchMethod::from_str_opt(s), Some(method));
280        }
281    }
282
283    #[test]
284    fn test_format_config_key() {
285        assert_eq!(
286            format_config_key(CONFIG_KEY_BASE_BRANCH, "fix-auth"),
287            "branch.fix-auth.worktreeBase"
288        );
289    }
290
291    #[test]
292    fn test_home_dir_or_fallback() {
293        let home = home_dir_or_fallback();
294        // Should return a non-empty path (either real home or ".")
295        assert!(!home.as_os_str().is_empty());
296    }
297
298    #[test]
299    fn test_path_age_days() {
300        // Non-existent path returns None
301        assert!(path_age_days(std::path::Path::new("/nonexistent/path")).is_none());
302
303        // Existing path returns Some with non-negative value
304        let tmp = std::env::temp_dir();
305        if let Some(age) = path_age_days(&tmp) {
306            assert!(age >= 0.0);
307        }
308    }
309
310    #[test]
311    fn test_version_meets_minimum() {
312        assert!(version_meets_minimum("2.31.0", 2, 31));
313        assert!(version_meets_minimum("2.40.0", 2, 31));
314        assert!(version_meets_minimum("3.0.0", 2, 31));
315        assert!(!version_meets_minimum("2.30.0", 2, 31));
316        assert!(!version_meets_minimum("1.99.0", 2, 31));
317        assert!(!version_meets_minimum("", 2, 31));
318        assert!(!version_meets_minimum("2", 2, 31));
319    }
320}
git_worktree_manager/constants.rs

git_worktree_manager/
constants.rs
