balls 0.5.11

Git-native task tracker for parallel agent workflows
Documentation 
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

//! [`Project`] tests on throwaway project repos — every worktree git act and
//! its idempotent re-run (materialize / release / discard / integration /
//! is_git_repo) plus the repo-identity reads. The direct squash itself lives in
//! the sibling `deliver_tests` module.

use super::*;
use crate::delivery::Repo;
use std::fs;
use tempfile::TempDir;

/// A throwaway project repo on `main` with one seed commit. Returns the tempdir
/// (kept alive), its root, and a [`Project`]. Shared with the sibling
/// `gate_tests` module.
pub fn project() -> (TempDir, PathBuf, Project) {
    let tmp = TempDir::new().unwrap();
    let root = tmp.path().join("proj");
    fs::create_dir(&root).unwrap();
    let g = |args: &[&str]| Project::run(&root, args).unwrap();
    g(&["init", "-q", "-b", "main"]);
    g(&["config", "user.name", "test"]);
    g(&["config", "user.email", "test@example.com"]);
    // Pin the hook dir to THIS repo's own: a host `core.hooksPath` in the
    // developer's global gitconfig otherwise wins `--git-path hooks/pre-commit`
    // for every throwaway repo, so the gate tests would silently exercise the
    // HOST's hook (always present, always executable) instead of the one they
    // install — the delivery gate's own absent/non-executable arms never run.
    g(&["config", "core.hooksPath", root.join(".git/hooks").to_str().unwrap()]);
    fs::write(root.join("seed.txt"), "seed\n").unwrap();
    g(&["add", "-A"]);
    g(&["commit", "-q", "-m", "seed"]);
    (tmp, root.clone(), Project::at(&root))
}

/// `main`'s tip subject — the delivery assertion surface.
pub fn tip(root: &Path) -> String {
    Project::run(root, &["log", "-1", "--format=%s", "main"]).unwrap().trim().to_string()
}

#[test]
fn materialize_creates_then_is_idempotent_then_reattaches_an_existing_branch() {
    let (tmp, root, p) = project();
    let wt = tmp.path().join("wt");

    // Branch absent → create work/<id> off HEAD.
    p.materialize(&wt, "work/bl-x").unwrap();
    assert!(wt.join("seed.txt").exists());
    assert!(p.branch_exists("work/bl-x").unwrap());

    // Path present → no-op (no second `worktree add`, which would fail).
    p.materialize(&wt, "work/bl-x").unwrap();

    // Worktree gone but branch kept → reattach the existing branch.
    p.release(&wt).unwrap();
    assert!(!wt.exists() && p.branch_exists("work/bl-x").unwrap());
    p.materialize(&wt, "work/bl-x").unwrap();
    assert!(wt.join("seed.txt").exists());

    let _ = root;
}

#[test]
fn materialize_recovers_a_deleted_dir_with_a_stale_registration() {
    // The ordinary form of "absent" (bl-b404): the dir was rm -rf'd, not
    // `worktree remove`d, so git still holds a registration. A bare
    // `worktree add` aborts with "missing but already registered worktree";
    // materialize must prune the stale registration and re-materialize.
    let (tmp, _root, p) = project();
    let wt = tmp.path().join("wt");
    p.materialize(&wt, "work/bl-x").unwrap();
    fs::remove_dir_all(&wt).unwrap(); // crash / tmp cleaner / human

    p.materialize(&wt, "work/bl-x").unwrap();
    assert!(wt.join("seed.txt").exists());
}

#[test]
fn release_removes_a_present_worktree_and_no_ops_when_absent() {
    let (tmp, _root, p) = project();
    let wt = tmp.path().join("wt");
    p.release(&wt).unwrap(); // absent → no-op
    p.materialize(&wt, "work/bl-x").unwrap();
    p.release(&wt).unwrap();
    assert!(!wt.exists());
}

#[test]
fn discard_removes_the_worktree_and_deletes_the_branch() {
    let (tmp, _root, p) = project();
    let wt = tmp.path().join("wt");
    p.materialize(&wt, "work/bl-x").unwrap();
    p.discard(&wt, "work/bl-x").unwrap();
    assert!(!wt.exists());
    assert!(!p.branch_exists("work/bl-x").unwrap());
    // Idempotent: both worktree and branch already gone.
    p.discard(&wt, "work/bl-x").unwrap();
}

#[test]
fn mint_creates_the_target_ref_at_its_base_then_declines_to_move_it() {
    // The lazy mint of a nesting target (bl-7b71): a bare ref at the base, no
    // worktree. Create-if-absent — a second mint NEVER moves a ref that already
    // holds delivered children (that would discard their work).
    let (_tmp, root, p) = project();
    p.mint("work/bl-epic", "main").unwrap();
    let head = |rev: &str| Project::run(&root, &["rev-parse", rev]).unwrap().trim().to_string();
    assert_eq!(head("work/bl-epic"), head("main"));

    fs::write(root.join("moved.txt"), "1\n").unwrap();
    Project::run(&root, &["add", "-A"]).unwrap();
    Project::run(&root, &["commit", "-q", "-m", "main moved"]).unwrap();
    p.mint("work/bl-epic", "main").unwrap(); // already exists → no-op
    assert_ne!(head("work/bl-epic"), head("main"));
}

#[test]
fn integration_is_the_project_head_branch() {
    let (_tmp, _root, p) = project();
    assert_eq!(p.integration().unwrap(), "main");
}

#[test]
fn is_git_repo_holds_for_a_worktree_and_a_bare_repo_but_not_a_plain_dir() {
    // The bl-4a88 precondition predicate, read by EXIT CODE: a normal work tree
    // is a repo, and so is a BARE one (the common balls deployment — delivery
    // works against it, so the gate must NOT reject it), while a plain dir is
    // not — the only case `claim`/`close` should abort on.
    let (_tmp, _root, p) = project();
    assert!(p.is_git_repo().unwrap());

    let bare = TempDir::new().unwrap();
    Project::run(bare.path(), &["init", "-q", "--bare", "-b", "main"]).unwrap();
    assert!(Project::at(bare.path()).is_git_repo().unwrap());

    let plain = TempDir::new().unwrap();
    assert!(!Project::at(plain.path()).is_git_repo().unwrap());
}

#[test]
fn a_git_failure_surfaces_with_stderr() {
    let outside = TempDir::new().unwrap(); // not a git repo
    let err = Project::run(outside.path(), &["rev-parse", "HEAD"]).unwrap_err();
    assert!(err.to_string().starts_with("git rev-parse HEAD"), "{err}");
}

#[test]
fn root_commit_is_the_seed_root_or_none_off_a_non_repo() {
    // bl-1ce7: the canonical, remote-free repo identity. On a one-commit repo
    // the root IS that seed commit; off a non-repo dir it is None (a ball
    // created there records nothing — back-compat).
    let (_tmp, root, p) = project();
    let r = p.root_commit().expect("a committed repo has a root");
    let seed = Project::run(&root, &["rev-parse", "HEAD"]).unwrap().trim().to_string();
    assert_eq!(r, seed, "the sole commit is the root");
    // A single-root repo's SET is exactly that seed (the canonical stamp = line 1).
    assert_eq!(p.root_commits(), vec![seed]);
    let outside = TempDir::new().unwrap(); // not a git repo
    assert!(Project::at(outside.path()).root_commit().is_none());
    assert!(Project::at(outside.path()).root_commits().is_empty());
}