diff --git a/my/coding/commits.py b/my/coding/commits.py
index 7d440f6..2342c50 100644
--- a/my/coding/commits.py
+++ b/my/coding/commits.py
@@ -2,28 +2,27 @@
 Git commits data: crawls filesystem
 """
 
+from pathlib import Path
 from datetime import datetime, timezone
 from typing import List, NamedTuple, Optional, Dict, Any, Iterator
-from pathlib import Path
-from os.path import basename, islink, isdir, join
-from os import listdir
 
-from ..common import PathIsh
+from ..common import PathIsh, LazyLogger
 from mycfg import commits as config
 
 # pip3 install gitpython
 import git # type: ignore
+from git.repo.fun import is_git_dir # type: ignore
+
+
+log = LazyLogger('my.commits', level='info')
 
-# TODO do something smarter... later
-# TODO def run against bitbucket and gh backups
-# TODO github/bitbucket repos?
-# TODO FIXME syncthing? or not necessary with coding view??
 
 _things = {
     *config.emails,
     *config.names,
 }
 
+
 def by_me(c) -> bool:
     actor = c.author
     if actor.email in config.emails:
@@ -62,47 +61,24 @@ def fix_datetime(dt) -> datetime:
     return dt.replace(tzinfo=ntz)
 
 
-def iter_commits(repo: PathIsh, ref=None):
-    # TODO other branches?
-    repo = Path(repo)
-    rr = repo.name
-    gr = git.Repo(repo)
+def _repo_commits_aux(gr: git.Repo, rev: str) -> Iterator[Commit]:
     # without path might not handle pull heads properly
-    for c in gr.iter_commits(rev=None if ref is None else ref.path):
+    for c in gr.iter_commits(rev=rev):
         if by_me(c):
             yield Commit(
                 commited_dt=fix_datetime(c.committed_datetime),
                 authored_dt=fix_datetime(c.authored_datetime),
                 message=c.message.strip(),
-                repo=rr,
+                repo=gr.git_dir,  # TODO chop off .git?
                 sha=c.hexsha,
-                ref=ref,
+                ref=rev,
             )
 
 
-def iter_all_ref_commits(repo: Path):
+def repo_commits(repo: PathIsh):
     gr = git.Repo(str(repo))
     for r in gr.references:
-        yield from iter_commits(repo=repo, ref=r)
-
-
-def is_git_repo(d: str):
-    dotgit = join(d, '.git')
-    return isdir(dotgit)
-
-from git.repo.fun import is_git_dir # type: ignore
-
-def iter_all_git_repos(dd: PathIsh) -> Iterator[Path]:
-    # TODO would that cover all repos???
-    dd = Path(dd)
-    assert dd.exists()
-    for xx in dd.glob('**/HEAD'): # ugh
-        c = xx.parent
-        if not is_git_dir(c):
-            continue
-        if c.name == '.git':
-            c = c.parent
-        yield c
+        yield from _repo_commits_aux(gr=gr, rev=r.path)
 
 
 def canonical_name(repo: Path) -> str:
@@ -111,52 +87,16 @@ def canonical_name(repo: Path) -> str:
         return repo.parent.name
     else:
         return repo.name
-
         # if r.name == 'repository': # 'repository' thing from github..
         #     rname = r.parent.name
         # else:
         #     rname = r.name
     # if 'backups/github' in repo:
     #     pass # TODO 
-    pass
 
 
-# TODO not even used??
-def _iter_multi_commits(sources):
-    for src in sources:
-        # TODO warn if doesn't exist?
-        for d in listdir(src):
-            pr = join(src, d)
-            if is_git_repo(pr):
-                try:
-                    for c in iter_commits(pr):
-                        yield c
-                except ValueError as ve:
-                    if "Reference at 'refs/heads/master' does not exist" in str(ve):
-                        continue # TODO wtf??? log?
-                    else:
-                        raise ve
-
-
-# TODO eh. traverse all of filesystem?? or only specific dirs for now?
-def iter_all_commits():
-    return _iter_multi_commits(config.sources)
-
-
-def get_all_commits():
-    res: Dict[str, Any] = {}
-    for c in iter_all_commits():
-        nn = res.get(c.sha, None)
-        if nn is None:
-            res[c.sha] = c
-        else:
-            res[c.sha] = min(nn, c, key=lambda c: c.sha)
-
-    return list(sorted(res.values(), key=lambda c: c.dt))
-
-# TODO cachew for all commits?
-
-def repos():
+# TODO could reuse in clustergit?..
+def repos() -> List[Path]:
     from subprocess import check_output
     outputs = check_output([
         'fdfind',
@@ -165,19 +105,27 @@ def repos():
         '--full-path',
         '--type', 'f',
         '/HEAD', # judging by is_git_dir, it should always be here..
-        *config.roots,
+        *roots,
     ]).decode('utf8').splitlines()
     candidates = set(Path(o).resolve().absolute().parent for o in outputs)
-    gits = {c for c in candidates if is_git_dir(c)}
-    for g in sorted(gits):
-        print(g)
 
-    # print(outputs.decode('utf8').splitlines())
+    # exclude stuff within .git dirs (can happen for submodules?)
+    candidates = {c for c in candidates if '.git' not in c.parts[:-1]}
+
+    gits = list(sorted(c for c in candidates if is_git_dir(c)))
+    return gits
+
+
+# TODO cachew for all commits?
+def commits() -> Iterator[Commit]:
+    for r in repos():
+        log.info('processing %s', r)
+        yield from repo_commits(r)
 
-def commits():
-    repos()
-    raise RuntimeError()
 
 def print_all():
     for c in commits():
         print(c)
+
+
+# TODO enforce read only? although it doesn't touch index