Function init_baseline

src/watcher/watcher.c:1049–1093

Init baseline for a project: check if git, get HEAD, count files */

/* Init baseline for a project: check if git, get HEAD, count files */
static bool init_baseline(cbm_watcher_t *w, project_state_t *s) {
    struct stat st;
    if (stat(s->root_path, &st) != 0) {
        cbm_log_warn("watcher.root_gone", "project", s->project_name, "path", s->root_path);
        s->baseline_done = true;
        s->is_git = false;
        return true;
    }

    watcher_git_status_t repository_status = git_repo_status(w, s);
    if (repository_status != WATCHER_GIT_OK && repository_status != WATCHER_GIT_COMMAND_FAILED) {
        return false;
    }
    s->is_git = repository_status == WATCHER_GIT_OK;
    s->baseline_done = true;

    if (s->is_git) {
        watcher_git_status_t head_status = git_head(w, s, s->last_head, sizeof(s->last_head));
        if (head_status != WATCHER_GIT_OK && head_status != WATCHER_GIT_COMMAND_FAILED) {
            s->baseline_done = false;
            return false;
        }
        /* last_dirty_sig stays 0 ("clean known"): a tree that is ALREADY
         * dirty at baseline reindexes once on the first poll — the watcher
         * cannot know whether that state made it into the DB (e.g. server
         * restart with a stale artifact). At-least-once, then the signature
         * gates further polls (#937). */
        int file_count = 0;
        watcher_git_status_t file_count_status = git_file_count(w, s, &file_count);
        if (file_count_status != WATCHER_GIT_OK &&
            file_count_status != WATCHER_GIT_COMMAND_FAILED) {
            s->baseline_done = false;
            return false;
        }
        s->file_count = file_count;
        s->interval_ms = cbm_watcher_poll_interval_ms(s->file_count);
        cbm_log_info("watcher.baseline", "project", s->project_name, "strategy", "git", "files",
                     s->file_count > 0 ? "yes" : "0");
    } else {
        cbm_log_info("watcher.baseline", "project", s->project_name, "strategy", "none");
    }

    s->next_poll_ns = now_ns() + ((int64_t)s->interval_ms * US_PER_MS);
    return true;
}

/* Check if a project has changes. Returns true if reindex needed.
 * Must NOT mutate the committed baselines (last_head, last_dirty_sig):