projects : am projects (agregats par depot depuis le journal) + profils de projet dans la config (issue #29) - agent dominant, sessions, durees, cache projects.json rafraichi par doctor --fix
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//! Project aggregation: which agent works on which project. Derived from
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//! the event journal (project field), with a best-effort cache written to
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//! projects.json (refreshed by 'am doctor --fix').
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use crate::app::App;
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use crate::config::ProjectProfile;
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use crate::events::{self, EventKind};
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use serde::Serialize;
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use std::collections::{BTreeMap, BTreeSet};
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use std::path::{Path, PathBuf};
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#[derive(Debug, Clone, Default, Serialize)]
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pub struct ProjectSummary {
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pub root: String,
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pub agents: Vec<String>,
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pub dominant: Option<String>,
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pub sessions: u64,
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pub launches: u64,
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pub total_duration_s: u64,
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pub last_activity: Option<String>,
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}
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/// Cache file (regenerated on read; deleted by doctor --fix).
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pub fn cache_file(app: &App) -> PathBuf {
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app.events_dir().join("projects.json")
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}
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/// Aggregate the journal into per-project summaries, sorted by last
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/// activity (most recent first). Also refreshes the cache file.
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pub fn aggregate(app: &App) -> Vec<ProjectSummary> {
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let mut map: BTreeMap<String, ProjectSummary> = BTreeMap::new();
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let mut agent_counts: BTreeMap<String, BTreeMap<String, u64>> = BTreeMap::new();
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let mut sessions: BTreeMap<String, BTreeSet<String>> = BTreeMap::new();
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for ev in events::read_events(&app.events_dir(), 0) {
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let Some(project) = ev.project else {
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continue;
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};
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let s = map
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.entry(project.clone())
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.or_insert_with(|| ProjectSummary {
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root: project.clone(),
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..Default::default()
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});
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if let Some(a) = ev.agent {
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*agent_counts
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.entry(project.clone())
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.or_default()
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.entry(a)
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.or_default() += 1;
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}
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if let Some(sid) = ev.session {
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sessions.entry(project.clone()).or_default().insert(sid);
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}
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match ev.kind {
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EventKind::Start | EventKind::Run => s.launches += 1,
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_ => {}
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}
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if let Some(d) = ev.duration_s {
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s.total_duration_s += d;
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}
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if ev.ts > s.last_activity.clone().unwrap_or_default() {
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s.last_activity = Some(ev.ts);
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}
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}
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for (p, s) in map.iter_mut() {
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s.agents = agent_counts
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.get(p)
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.map(|c| c.keys().cloned().collect())
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.unwrap_or_default();
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s.agents.sort();
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s.dominant = agent_counts
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.get(p)
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.and_then(|c| c.iter().max_by_key(|(_, n)| *n).map(|(a, _)| a.clone()));
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s.sessions = sessions.get(p).map(|set| set.len() as u64).unwrap_or(0);
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}
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let mut out: Vec<ProjectSummary> = map.into_values().collect();
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out.sort_by(|a, b| b.last_activity.cmp(&a.last_activity));
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// Best-effort cache (readable by scripts and backups).
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if let Ok(text) = serde_json::to_string_pretty(&out) {
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let _ = std::fs::write(cache_file(app), text);
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}
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out
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}
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/// The project profile whose root matches cwd (the longest root wins).
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pub fn profile_for<'a>(app: &'a App, cwd: &Path) -> Option<(&'a str, &'a ProjectProfile)> {
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let mut best: Option<(&str, &ProjectProfile)> = None;
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for (name, p) in &app.config.projects {
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let root = crate::config::expand_path(&p.root);
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let matches = cwd.starts_with(&root) || cwd == root;
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if matches {
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let better = best
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.map(|(_, b)| {
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let broot = crate::config::expand_path(&b.root);
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root.components().count() > broot.components().count()
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})
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.unwrap_or(true);
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if better {
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best = Some((name.as_str(), p));
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}
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}
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}
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best
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}
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/// Default agent of the project containing cwd (issue #30 helper).
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pub fn default_agent_for_dir(app: &App, cwd: &Path) -> Option<String> {
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profile_for(app, cwd)
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.and_then(|(_, p)| p.default_agent.clone())
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use clap::Parser;
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fn app_with_events(lines: &[&str]) -> App {
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let guard = tempfile::tempdir().unwrap();
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let dir = guard.path().to_path_buf();
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std::mem::forget(guard);
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let cfg = dir.join("config.yaml");
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std::fs::write(
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&cfg,
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concat!(
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"version: \"1.0\"\n",
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"settings:\n",
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" auto_install_deps: false\n",
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"agents: []\n",
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),
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)
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.unwrap();
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let cli = crate::cli::Cli::parse_from(["am", "--config", cfg.to_str().unwrap()]);
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let mut app = App::from_cli(cli).unwrap();
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let mut p = app.paths.clone();
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p.install_dir = dir.join("agents");
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p.bin_dir = dir.join("agents").join("bin");
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p.log_dir = dir.join("logs");
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p.state_file = dir.join("state.json");
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p.probe_cache_file = dir.join("probe-cache.json");
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p.config_dir = Some(dir.join("config"));
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app.paths = p;
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let month = chrono::Utc::now().format("%Y%m");
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let path = dir.join(format!("events-{month}.jsonl"));
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let mut text = String::new();
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for l in lines {
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text.push_str(l);
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text.push('\n');
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}
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std::fs::create_dir_all(&dir).unwrap();
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std::fs::write(&path, text).unwrap();
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app
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}
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#[test]
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fn aggregates_projects_from_events() {
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let app = app_with_events(&[
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r#"{"ts":"2026-08-01T10:00:00Z","kind":"run","agent":"claude-code","project":"/home/x/api","session":"s1","duration_s":10,"exit_code":0}"#,
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r#"{"ts":"2026-08-02T10:00:00Z","kind":"run","agent":"claude-code","project":"/home/x/api","session":"s2","duration_s":20,"exit_code":0}"#,
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r#"{"ts":"2026-08-03T10:00:00Z","kind":"run","agent":"aider","project":"/home/x/api","session":"s3","duration_s":5,"exit_code":0}"#,
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r#"{"ts":"2026-08-04T10:00:00Z","kind":"run","agent":"smelt","project":"/home/x/rusty","session":"s4","duration_s":7,"exit_code":0}"#,
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]);
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let out = aggregate(&app);
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assert_eq!(out.len(), 2);
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let api = out.iter().find(|s| s.root == "/home/x/api").unwrap();
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assert_eq!(api.agents, vec!["aider".to_string(), "claude-code".to_string()]);
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assert_eq!(api.dominant.as_deref(), Some("claude-code"));
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assert_eq!(api.sessions, 3);
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assert_eq!(api.launches, 3);
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assert_eq!(api.total_duration_s, 35);
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assert!(api.last_activity.is_some());
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assert!(cache_file(&app).exists(), "cache written");
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}
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#[test]
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fn profile_matching_prefers_longest_root() {
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let app = app_with_events(&[]);
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let tmp = std::env::temp_dir();
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let api = tmp.join("p1-api");
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let sub = api.join("src");
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let _ = (api, sub);
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// Ce test est complete dans l'integration (config avec profils) ;
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// ici on verifie juste l'absence de profil par defaut.
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assert!(default_agent_for_dir(&app, &std::env::temp_dir()).is_none());
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}
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}
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