midden 0.2.0

Resolve, audit, and garbage-collect Claude Code's accumulated state
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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294

mod common;

use common::{Fixture, standard_extras, standard_projects};
use predicates::str::contains;
use serde_json::{Value, json};

#[test]
fn dry_run_lists_orphans_and_writes_nothing() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live-project");
    fx.write_config(standard_projects(&live), standard_extras());
    let before = std::fs::read_to_string(&fx.config).unwrap();

    fx.cmd()
        .arg("prune")
        .assert()
        .success()
        .stdout(contains("/no/such/dir"))
        .stdout(contains("/also/gone"))
        .stdout(contains("[worktree]"))
        .stdout(contains("dry run"));

    let after = std::fs::read_to_string(&fx.config).unwrap();
    assert_eq!(before, after, "dry run must not modify the config");
    assert!(fx.backup_paths().is_empty(), "no backup on dry run");
}

#[test]
fn apply_removes_orphans_keeps_live_and_extras_intact() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live-project");
    fx.write_config(standard_projects(&live), standard_extras());

    fx.cmd()
        .arg("prune")
        .arg("--apply")
        // We can't easily simulate "no running claude" in CI when Claude IS
        // running. The test process itself is named differently, but if a real
        // `claude` is up, --force is the only safe option in tests.
        .arg("--force")
        .assert()
        .success()
        .stdout(contains("backed up to"));

    let after = fx.read_config();
    let projects = after["projects"].as_object().unwrap();

    assert_eq!(projects.len(), 1, "exactly one entry should survive");
    assert!(projects.contains_key(&live));
    assert!(!projects.contains_key("/no/such/dir"));
    assert!(!projects.contains_key("/also/gone"));
    assert!(
        !projects.contains_key("/Users/x/proj/.claude/worktrees/witty-curie/checkout"),
        "worktree orphan should be pruned"
    );

    // Unrelated top-level keys preserved in meaning.
    assert_eq!(
        after["mcpServers"]["example"]["command"],
        json!("node"),
        "mcpServers must survive"
    );
    assert_eq!(
        after["oauthAccount"]["email"],
        json!("patrick@example.com"),
        "oauthAccount must survive"
    );
    assert_eq!(after["numStartups"], json!(42));

    let backups = fx.backup_paths();
    assert_eq!(backups.len(), 1, "exactly one backup should be written");
}

#[test]
fn backup_is_a_faithful_copy_of_the_pre_apply_config() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live-project");
    fx.write_config(standard_projects(&live), standard_extras());
    let before = std::fs::read_to_string(&fx.config).unwrap();

    fx.cmd()
        .arg("prune")
        .arg("--apply")
        .arg("--force")
        .assert()
        .success();

    let backups = fx.backup_paths();
    assert_eq!(backups.len(), 1, "exactly one backup");
    let backed_up = std::fs::read_to_string(&backups[0]).unwrap();
    assert_eq!(
        backed_up, before,
        "backup must byte-match the pre-apply config (not a post-write copy)"
    );
    let after = std::fs::read_to_string(&fx.config).unwrap();
    assert_ne!(after, before, "live config should have changed");
}

#[test]
fn worktrees_only_skips_non_worktree_orphans() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live-project");
    fx.write_config(standard_projects(&live), standard_extras());

    fx.cmd()
        .arg("prune")
        .arg("--worktrees-only")
        .arg("--apply")
        .arg("--force")
        .assert()
        .success();

    let after = fx.read_config();
    let projects = after["projects"].as_object().unwrap();
    assert!(projects.contains_key(&live));
    // Non-worktree orphans must remain when --worktrees-only is set.
    assert!(projects.contains_key("/no/such/dir"));
    assert!(projects.contains_key("/also/gone"));
    assert!(
        !projects.contains_key("/Users/x/proj/.claude/worktrees/witty-curie/checkout"),
        "worktree orphan should be pruned"
    );
}

#[test]
fn refuses_mass_deletion_without_force() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live");
    let mut projects = serde_json::Map::new();
    projects.insert(live, json!({}));
    for i in 0..9 {
        projects.insert(format!("/gone/{i}"), json!({}));
    }
    fx.write_config(Value::Object(projects), standard_extras());

    // 9 of 10 entries resolve missing (>=90%). The mass-deletion guard is
    // checked before the running-claude gate, so this is deterministic in CI
    // regardless of whether a real claude process happens to be running.
    fx.cmd()
        .arg("prune")
        .arg("--apply")
        .assert()
        .failure()
        .stderr(contains("different machine"));
    assert!(
        fx.backup_paths().is_empty(),
        "must not write when the mass-deletion guard refuses"
    );

    // --force overrides the guard.
    fx.cmd()
        .arg("prune")
        .arg("--apply")
        .arg("--force")
        .assert()
        .success();
    let after = fx.read_config();
    assert_eq!(after["projects"].as_object().unwrap().len(), 1);
}

#[test]
fn clean_config_reports_no_action() {
    let fx = Fixture::new();
    let live = fx.touch_dir("only-live");
    fx.write_config(json!({ &live: {} }), standard_extras());

    fx.cmd()
        .arg("prune")
        .assert()
        .success()
        .stdout(contains("clean."));
    assert!(fx.backup_paths().is_empty());
}

#[test]
fn apply_preserves_top_level_key_order() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live-project");
    fx.write_config(standard_projects(&live), standard_extras());

    fx.cmd()
        .arg("prune")
        .arg("--apply")
        .arg("--force")
        .assert()
        .success();

    // Assert on the RAW written text — re-parsing with serde_json (which also
    // has preserve_order) would mask a regression that dropped the feature.
    let raw = std::fs::read_to_string(&fx.config).unwrap();
    let pos = |needle: &str| {
        raw.find(needle)
            .unwrap_or_else(|| panic!("missing {needle} in:\n{raw}"))
    };
    let (mcp, oauth, starts, projects) = (
        pos("\"mcpServers\""),
        pos("\"oauthAccount\""),
        pos("\"numStartups\""),
        pos("\"projects\""),
    );
    assert!(
        mcp < oauth && oauth < starts && starts < projects,
        "top-level key order not preserved (mcp={mcp} oauth={oauth} starts={starts} projects={projects}):\n{raw}"
    );
}

#[test]
fn errors_on_malformed_config() {
    let fx = Fixture::new();
    std::fs::write(&fx.config, "{ not valid json").unwrap();
    fx.cmd()
        .arg("prune")
        .assert()
        .failure()
        .stderr(contains("parse"));
}

#[test]
fn handles_config_without_projects_map() {
    let fx = Fixture::new();
    // Parseable, but no "projects" key (write_config always adds one, so write
    // directly).
    std::fs::write(
        &fx.config,
        serde_json::to_string_pretty(&json!({ "numStartups": 1 })).unwrap(),
    )
    .unwrap();
    fx.cmd()
        .arg("prune")
        .assert()
        .success()
        .stdout(contains("no 'projects' map found"));
}

#[test]
fn missing_config_is_an_error() {
    let fx = Fixture::new();
    // Don't write a config.
    fx.cmd()
        .arg("prune")
        .assert()
        .failure()
        .stderr(contains("not found"));
}

#[test]
fn json_output_dry_run_emits_orphans_array() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live");
    fx.write_config(standard_projects(&live), standard_extras());

    let out = fx.cmd().arg("--json").arg("prune").output().expect("run");
    assert!(
        out.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&out.stderr)
    );
    let v: serde_json::Value = serde_json::from_slice(&out.stdout).expect("json");
    assert_eq!(v["total"], json!(4));
    assert_eq!(v["orphans"].as_array().unwrap().len(), 3);
    assert_eq!(v["removed"], json!(false));
    assert_eq!(v["backup"], json!(null), "no backup on dry run");
}

#[test]
fn json_output_apply_emits_backup_path() {
    let fx = Fixture::new();
    let live = fx.touch_dir("live");
    fx.write_config(standard_projects(&live), standard_extras());

    let out = fx
        .cmd()
        .arg("--json")
        .arg("prune")
        .arg("--apply")
        .arg("--force")
        .output()
        .expect("run");
    assert!(
        out.status.success(),
        "stderr: {}",
        String::from_utf8_lossy(&out.stderr)
    );
    let v: serde_json::Value = serde_json::from_slice(&out.stdout).expect("json");
    assert_eq!(v["removed"], json!(true));
    assert!(v["bytes_after"].as_u64().unwrap() < v["bytes_before"].as_u64().unwrap());

    let backup = v["backup"].as_str().expect("backup path string");
    assert!(backup.contains(".bak-"), "backup path: {backup}");
    assert!(
        std::path::Path::new(backup).is_file(),
        "backup file should exist: {backup}"
    );
}