feat(chronology): regenerate chronology.md with v2 git-history classifier (closes 5-day desync gap)

scripts/audit/generate_chronology.py

@@ -38,12 +38,22 @@ _METADATA_FIELD_PREFIXES = (
  "**Parent umbrella:**",
  "**Status:**",
  "**Confidence:**",
+ "**Ancestors:**",
 )
 
-_WORK_COMMIT_PREFIXES = ("feat:", "fix:", "refactor:", "perf:", "test:", "docs(report):")
+_WORK_COMMIT_PREFIXES = ("feat", "fix", "refactor", "perf", "test", "docs(report)")
 _METADATA_COMMIT_PREFIXES = ("conductor(plan):", "conductor(state):", "conductor(track):", "docs(spec):", "docs(plan):")
 
 
+def _is_work_commit(msg: str) -> bool:
+ """Check if a commit message is a work commit (feat/fix/refactor/perf/test with optional scope)."""
+ for prefix in _WORK_COMMIT_PREFIXES:
+  if msg.startswith(prefix + ":") or msg.startswith(prefix + "("):
+   if not any(msg.startswith(m) for m in _METADATA_COMMIT_PREFIXES):
+    return True
+ return False
+
+
 def extract_slug_date(folder_name: str) -> Optional[str]:
  m = _SLUG_DATE_RE.search(folder_name)
  if not m:
@@ -123,6 +133,23 @@ def _git_log(folder_relpath: str, *args: str) -> str:
   return ""
 
 
+def _git_log_multi(*folder_relpaths: str) -> str:
+ """Get git log for multiple paths in a single subprocess call."""
+ try:
+  result = subprocess.run(
+   ["git", "log", "--oneline", "--", *folder_relpaths],
+   capture_output=True,
+   text=True,
+   timeout=_GIT_TIMEOUT,
+   check=False,
+  )
+  if result.returncode != 0:
+   return ""
+  return result.stdout
+ except (subprocess.SubprocessError, OSError):
+  return ""
+
+
 def _git_first_line(folder_relpath: str, *args: str) -> str:
  out = _git_log(folder_relpath, *args)
  stripped = out.strip()
@@ -188,16 +215,20 @@ def _last_commit_date(folder_relpath: str) -> str:
   return "never"
 
 
-def _count_work_commits(folder_relpath: str) -> int:
- log: str = _git_log(folder_relpath, "--oneline")
+def _count_work_commits_from_log(log: str) -> int:
  count: int = 0
  for line in log.splitlines():
   msg: str = line.split(" ", 1)[1] if " " in line else ""
-  if msg.startswith(_WORK_COMMIT_PREFIXES) and not msg.startswith(_METADATA_COMMIT_PREFIXES):
+  if _is_work_commit(msg):
    count += 1
  return count
 
 
+def _count_work_commits(folder_relpath: str) -> int:
+ log: str = _git_log(folder_relpath, "--oneline")
+ return _count_work_commits_from_log(log)
+
+
 def _has_report_matching(reports_dir: Path, track_id: str, prefix: str) -> bool:
  if not reports_dir.is_dir():
   return False
@@ -215,6 +246,7 @@ def classify_status(
  reports_dir: Path,
  has_abort_report: bool = False,
  state_status: str = "",
+ work_commits: int = -1,
 ) -> tuple[str, str, str]:
  """Git-history evidence classifier returning (status, confidence, reason).
 
@@ -238,7 +270,8 @@ def classify_status(
  # 2. Git commit evidence
  is_archive = folder_link.startswith("conductor/archive/")
  is_tracks = folder_link.startswith("conductor/tracks/")
- work_commits: int = _count_work_commits(folder_link)
+ if work_commits < 0:
+  work_commits = _count_work_commits(folder_link)
  if work_commits >= 3:
   return ("Completed", "medium", f"{work_commits} work commits")
  if 1 <= work_commits <= 2 and is_tracks:
@@ -273,11 +306,31 @@ def walk_track_folders(root: Path) -> list[dict]:
     folder_relpath = _to_posix(str(folder))
    track_id: str = folder.name
    slug_date = extract_slug_date(track_id)
+   # Get the full oneline log once. For archive folders, include both the
+   # archive path and the original tracks/ path (git mv preserves history
+   # but git log -- <archive_path> alone may miss pre-move commits)
+   if folder_relpath.startswith("conductor/archive/"):
+    original_path: str = folder_relpath.replace("conductor/archive/", "conductor/tracks/", 1)
+    oneline_log: str = _git_log_multi(folder_relpath, original_path)
+   else:
+    oneline_log = _git_log(folder_relpath, "--oneline")
+   log_lines: list[str] = [l for l in oneline_log.splitlines() if l.strip()]
+   commit_count: int = len(log_lines)
    if slug_date:
     date = slug_date
-   else:
+   elif log_lines:
+    # First commit date via reverse log
     first_commit = _git_first_line(folder_relpath, "--reverse", "--format=%aI")
     date = first_commit[:10] if first_commit else ""
+   else:
+    date = ""
+   # Derive init_sha and end_sha from the oneline log
+   if log_lines:
+    init_sha: str = log_lines[-1].split(" ", 1)[0]  # oldest (last in reverse-chronological git log)
+    end_sha: str = log_lines[0].split(" ", 1)[0]    # newest (first in git log)
+   else:
+    init_sha = ""
+    end_sha = ""
    metadata_path = folder / "metadata.json"
    meta_status: str = ""
    if metadata_path.is_file():
@@ -287,6 +340,7 @@ def walk_track_folders(root: Path) -> list[dict]:
     except (json.JSONDecodeError, OSError):
      pass
    state_status: str = _parse_state_status(folder / "state.toml")
+   work_commits: int = _count_work_commits_from_log(oneline_log)
    status, confidence, reason = classify_status(
     folder_link=folder_relpath,
     current=meta_status or default_status,
@@ -294,16 +348,9 @@ def walk_track_folders(root: Path) -> list[dict]:
     repo_root=repo_root,
     reports_dir=reports_dir,
     state_status=state_status,
+    work_commits=work_commits,
    )
    summary: str = extract_summary(folder)
-   init_sha: str = _git_first_line(folder_relpath, "--reverse", "--format=%h")
-   end_sha: str = _git_first_line(folder_relpath, "-1", "--format=%h")
-   if init_sha and end_sha:
-    range_log = _git_log(folder_relpath, "--oneline", f"{init_sha}..{end_sha}")
-    commit_count: int = range_log.count("\n") + (1 if init_sha != end_sha else 0)
-   else:
-    fallback_log = _git_log(folder_relpath, "--oneline")
-    commit_count = fallback_log.count("\n")
    try:
     folder_link = _to_posix(str(folder.relative_to(repo_root)))
    except ValueError: