yog 0.0.3

yog: a balls-oriented session manager for lernie loops (egui frontend)
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
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

//! The §16.3 knob and the §9.4 pick, driven through the chokepoint (bl-3f46):
//! a recorder `bl` for the knob's `conf` writes and reads, a real-git workspace
//! and a recorder `lernie` for the pick's two halves.

use super::{ACME, deps_at, fire, quiet, script, seed_wall};
use crate::boundary::Action;
use crate::boundary::reply::Reply;
use crate::git_tree::tests::fixture::Fixture;
use crate::test_support::{TEMPLATE_PROVIDERS, spawn_guard};
use std::fs;
use std::path::Path;
use tempfile::tempdir;

#[test]
fn set_marks_answers_with_the_branch_it_read_back_and_logs_the_write() {
    let root = tempdir().unwrap();
    let deps = quiet(root.path());
    let ws = root.path().join("workspaces").join("home");
    let deps = super::seeing(&deps, &[ws.as_path()]);
    let reply = fire(
        &deps,
        &Action::SetMarks {
            workspace: crate::naming::leaf(&ws),
            branch: "balls/agents/home".to_owned(),
        },
    );
    assert_eq!(
        reply,
        Ok(Reply::Marks {
            branch: "balls/agents/home".to_owned(),
        })
    );
    // The write is on the trail (§4.2) as the non-spawn step it is — no `bl`
    // was run, because the value's home is the space's own balls config.
    let logged = crate::opslog::tail(&deps.state_root, 10);
    assert_eq!(logged.len(), 1);
    assert_eq!(logged[0].argv, ["yog-step", "marks", "balls/agents/home"]);
}

#[test]
fn reading_marks_never_refuses_even_for_a_workspace_with_no_project() {
    let root = tempdir().unwrap();
    let deps = quiet(root.path());
    let ws = root.path().join("nowhere");
    let deps = super::seeing(&deps, &[ws.as_path()]);
    let reply = super::ask(
        &deps,
        &crate::boundary::Query::Marks {
            workspace: crate::naming::leaf(&ws),
        },
    );
    // The launched-then-told-to-work-on-a-project case: nothing is primed,
    // nothing is bound, and the agent still has a branch — balls' default.
    assert_eq!(
        reply,
        Ok(Reply::Marks {
            branch: crate::world::marks::SHARED_BRANCH.to_owned(),
        })
    );
}

#[test]
fn set_marks_refuses_an_unlawful_branch_rather_than_writing_one() {
    let root = tempdir().unwrap();
    let home = root.path().join("workspaces").join("home");
    let deps = super::seeing(&quiet(root.path()), &[home.as_path()]);
    let err = fire(
        &deps,
        &Action::SetMarks {
            workspace: crate::naming::leaf(&home),
            branch: "balls/config".to_owned(),
        },
    )
    .unwrap_err();
    assert!(err.contains("landing branch"), "{err}");
}

/// A real-git workspace carrying lernie's own `providers.yaml` on
/// `config/default` — what the pick reads before it rewrites it.
fn workspace() -> Fixture {
    let fx = Fixture::new();
    fx.commit_other("providers.yaml", TEMPLATE_PROVIDERS);
    fx
}

fn pick(role: &str, provider: &str, model: &str, ws: &Path) -> Action {
    Action::PickModel {
        workspace: crate::naming::leaf(ws),
        role: role.to_owned(),
        provider: provider.to_owned(),
        model: model.to_owned(),
    }
}

#[test]
fn a_pick_declares_the_model_then_commits_the_assignment() {
    let g = spawn_guard();
    let root = tempdir().unwrap();
    let bin = tempdir().unwrap();
    let log = bin.path().join("log");
    let lernie = script(
        bin.path(),
        "lernie",
        &format!(
            "cat \"$YOG_EDIT_SRC/providers.yaml\" > {}\nexit 0\n",
            log.display()
        ),
    );
    let fx = workspace();
    let deps = super::seeing(
        &deps_at(root.path(), &lernie, Path::new("/no/bl")),
        &[fx.path.as_path()],
    );
    // The pick's provider gate reads the rows of the workspace being picked
    // for (bl-fcd5), so `acme` has to be live in *that* sphere's wall.
    seed_wall(&deps, &fx.path, ACME);
    let reply = fire(&deps, &pick("worker", "acme", "m-9", &fx.path));
    drop(g);
    assert!(
        matches!(&reply, Ok(Reply::Outcome(o)) if o.ok()),
        "{reply:?}"
    );
    // models.yaml first — a role naming an undeclared model bricks a workspace.
    let models = fs::read_to_string(root.path().join("lernie/models.yaml")).unwrap();
    assert!(models.contains("m-9"), "{models}");
    assert!(models.contains("acme"), "{models}");
    // …then the assignment, staged for lernie's own commit.
    let staged = fs::read_to_string(&log).unwrap();
    assert!(staged.contains("provider: acme"), "{staged}");
    assert!(staged.contains("model: m-9"), "{staged}");
}

#[test]
fn a_pick_on_a_row_brazen_lacks_writes_neither_half() {
    let root = tempdir().unwrap();
    let fx = workspace();
    let deps = super::seeing(&quiet(root.path()), &[fx.path.as_path()]);
    let err = fire(&deps, &pick("worker", "nope", "m-9", &fx.path)).unwrap_err();
    assert!(err.contains("no provider row `nope`"), "{err}");
    assert!(!root.path().join("lernie/models.yaml").exists());
}

/// Write the model cache `bz --list-models` wholesale-writes for `provider`
/// inside `workspace`'s own wall — the roster the picker read to offer the id,
/// which is where the pick's declared window is seeded from (bl-848f).
fn seed_roster(
    deps: &crate::boundary::dispatch::Deps,
    workspace: &Path,
    provider: &str,
    doc: &str,
) {
    let dir = crate::config_edit::brazen::BrazenPaths::in_wall(&crate::world::wall::root_of(
        &deps.world,
        workspace,
    ))
    .models_cache_dir;
    fs::create_dir_all(&dir).unwrap();
    fs::write(dir.join(format!("{provider}.json")), doc).unwrap();
}

/// bl-848f. The declared window is the number brazen served for that id on that
/// row — not the 200k default sitting next to a fact the roster already had.
#[test]
fn a_pick_declares_the_window_the_provider_served() {
    let g = spawn_guard();
    let root = tempdir().unwrap();
    let bin = tempdir().unwrap();
    let lernie = script(bin.path(), "lernie", "exit 0\n");
    let fx = workspace();
    let deps = super::seeing(
        &deps_at(root.path(), &lernie, Path::new("/no/bl")),
        &[fx.path.as_path()],
    );
    seed_wall(&deps, &fx.path, ACME);
    seed_roster(
        &deps,
        &fx.path,
        "acme",
        r#"{"models":[{"default":false,"id":"m-9","context_window":1048576}],"last_used":"m-9"}"#,
    );
    let reply = fire(&deps, &pick("worker", "acme", "m-9", &fx.path));
    drop(g);
    assert!(
        matches!(&reply, Ok(Reply::Outcome(o)) if o.ok()),
        "{reply:?}"
    );
    let models = fs::read_to_string(root.path().join("lernie/models.yaml")).unwrap();
    assert!(models.contains("    context_window: 1048576"), "{models}");
    assert!(
        models.contains("the number this provider served"),
        "{models}"
    );
}

/// The honest miss: a row whose roster carries no window — or that was never
/// listed in this wall at all — declares §9.4's default, under the note that
/// says it is one.
#[test]
fn a_pick_with_no_served_window_declares_the_default() {
    let g = spawn_guard();
    let root = tempdir().unwrap();
    let bin = tempdir().unwrap();
    let lernie = script(bin.path(), "lernie", "exit 0\n");
    let fx = workspace();
    let deps = super::seeing(
        &deps_at(root.path(), &lernie, Path::new("/no/bl")),
        &[fx.path.as_path()],
    );
    seed_wall(&deps, &fx.path, ACME);
    seed_roster(
        &deps,
        &fx.path,
        "acme",
        r#"{"models":[{"default":false,"id":"m-9"}]}"#,
    );
    let reply = fire(&deps, &pick("worker", "acme", "m-9", &fx.path));
    drop(g);
    assert!(
        matches!(&reply, Ok(Reply::Outcome(o)) if o.ok()),
        "{reply:?}"
    );
    let models = fs::read_to_string(root.path().join("lernie/models.yaml")).unwrap();
    let default = crate::model_pick::grammar::DEFAULT_CONTEXT_WINDOW;
    assert!(
        models.contains(&format!("    context_window: {default}")),
        "{models}"
    );
    assert!(
        models.contains("declared defaults, not discoveries"),
        "{models}"
    );
}

#[test]
fn a_pick_needs_a_lineage_it_can_read_the_assignment_from() {
    let root = tempdir().unwrap();
    let deps = quiet(root.path());
    let err = fire(&deps, &pick("worker", "acme", "m-9", root.path())).unwrap_err();
    assert!(!err.is_empty(), "{err}");
}

#[test]
fn a_pick_whose_models_file_cannot_be_read_refuses_before_planning() {
    let root = tempdir().unwrap();
    let deps = quiet(root.path());
    fs::create_dir_all(root.path().join("lernie/models.yaml")).unwrap();
    let fx = workspace();
    assert!(fire(&deps, &pick("worker", "acme", "m-9", &fx.path)).is_err());
}