ccd-cli 1.0.0-beta.2

Bootstrap and validate Continuous Context Development repositories
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159

// Git path helpers are shared across commands, bootstrap flows, and tests, so
// some helpers only go live in specific call paths.

use std::path::{Path, PathBuf};
use std::process::Command;

use anyhow::{bail, Context, Result};
use tracing::debug;

pub fn ccd_dir(repo_root: &Path) -> Result<PathBuf> {
    git_path(repo_root, "ccd")
}

pub fn git_path(repo_root: &Path, suffix: &str) -> Result<PathBuf> {
    debug!(args = ?["rev-parse", "--git-path", suffix], dir = %repo_root.display(), "spawning git");
    let output = Command::new("git")
        .args(["rev-parse", "--git-path", suffix])
        .current_dir(repo_root)
        .output()
        .with_context(|| {
            format!(
                "failed to run `git rev-parse --git-path {suffix}` in {}",
                repo_root.display()
            )
        })?;
    debug!(success = output.status.success(), "git completed");

    if !output.status.success() {
        let stderr = String::from_utf8_lossy(&output.stderr);
        let detail = stderr.trim();
        if detail.is_empty() {
            bail!(
                "`git rev-parse --git-path {suffix}` failed in {}",
                repo_root.display()
            );
        }

        bail!(
            "`git rev-parse --git-path {suffix}` failed in {}: {detail}",
            repo_root.display()
        );
    }

    let stdout = String::from_utf8(output.stdout)
        .with_context(|| format!("git returned a non-utf8 path for `{suffix}`"))?;
    let resolved = stdout.trim();
    if resolved.is_empty() {
        bail!(
            "`git rev-parse --git-path {suffix}` returned an empty path in {}",
            repo_root.display()
        );
    }

    let path = PathBuf::from(resolved);
    if path.is_absolute() {
        Ok(path)
    } else {
        Ok(repo_root.join(path))
    }
}

pub fn is_git_work_tree(path: &Path) -> bool {
    debug!(args = ?["rev-parse", "--is-inside-work-tree"], dir = %path.display(), "spawning git");
    let result = Command::new("git")
        .args(["rev-parse", "--is-inside-work-tree"])
        .current_dir(path)
        .stdout(std::process::Stdio::null())
        .stderr(std::process::Stdio::null())
        .status()
        .map(|s| s.success())
        .unwrap_or(false);
    debug!(success = result, "git completed");
    result
}

pub fn worktree_add(
    repo_root: &Path,
    worktree_path: &Path,
    branch: &str,
    start_point: Option<&str>,
) -> Result<()> {
    let mut command = Command::new("git");
    command
        .arg("worktree")
        .arg("add")
        .arg("-b")
        .arg(branch)
        .arg(worktree_path)
        .current_dir(repo_root);
    if let Some(start_point) = start_point {
        command.arg(start_point);
    }

    debug!(args = ?["worktree", "add", "-b", branch], dir = %repo_root.display(), "spawning git");
    let output = command.output().with_context(|| {
        format!(
            "failed to run `git worktree add -b {branch} {}` in {}",
            worktree_path.display(),
            repo_root.display()
        )
    })?;
    debug!(success = output.status.success(), "git completed");

    if output.status.success() {
        return Ok(());
    }

    let stderr = String::from_utf8_lossy(&output.stderr);
    let detail = stderr.trim();
    if detail.is_empty() {
        bail!(
            "`git worktree add -b {branch} {}` failed in {}",
            worktree_path.display(),
            repo_root.display()
        );
    }

    bail!(
        "`git worktree add -b {branch} {}` failed in {}: {detail}",
        worktree_path.display(),
        repo_root.display()
    )
}

#[cfg(test)]
mod tests {
    use std::process::Command;

    use tempfile::tempdir;

    use super::*;

    #[test]
    fn ccd_dir_uses_git_rev_parse_output() {
        let temp = tempdir().expect("tempdir");
        init_git_repo(temp.path());

        let path = ccd_dir(temp.path()).expect("git path");

        assert_eq!(path, temp.path().join(".git/ccd"));
    }

    #[test]
    fn ccd_dir_fails_closed_outside_git_repo() {
        let temp = tempdir().expect("tempdir");

        let error = ccd_dir(temp.path()).expect_err("git path should fail");

        assert!(error.to_string().contains("git rev-parse --git-path ccd"));
    }

    fn init_git_repo(path: &Path) {
        Command::new("git")
            .args(["init", "-b", "main"])
            .current_dir(path)
            .status()
            .expect("git init");
    }
}