Untrack .venv312 — and fix the ignore rule that was meant to stop it

[Daily-AC]

Closes #26. This is option (1) from that issue, the non-destructive one you signed off on.

While preparing it I found a second cause, which changes what the fix has to contain.

.gitignore's .venv*/ rule was never active

The line carries a trailing comment, and gitignore only treats # as a comment when it starts a line. So the pattern is the whole literal string — padding spaces and prose included — and it matches nothing:

$ git check-ignore -v .venv312/foo     # before: no output, exit 1
$ git check-ignore -v .venv/foo        # the older, unadorned rule works
.gitignore:6:.venv/     .venv/foo

Moving the comment onto its own line makes it match:

$ git check-ignore -v .venv312/foo     # after
.gitignore:9:.venv*/    .venv312/foo

That is why the PR touches .gitignore as well as the index. git rm -r --cached on its own would have left .venv312/ untracked and unignored — one git add -A away from coming straight back, which is roughly how it got committed in the first place.

I kept your original note and added one line saying why it has to live above the pattern, in the same language as the rest of the file. Change it freely if you'd rather word it differently.

Effect

tracked files    5,586 -> 161
of those, venv   5,425 -> 0

Nothing is rewritten. Every commit SHA is unchanged, the release tags still point where they pointed, and the 183 open forks are unaffected. A full clone still carries the blobs in history, so the 146 MB is not reclaimed — this stops new checkouts from materialising a virtualenv and stops the next git add -A from re-committing one. Reclaiming the space still needs the history rewrite, which stays off the table.

How I verified

On a clean checkout of this branch, mirroring what CI does:

• pip install -e . succeeds
• crv --help exits 0
• pytest -q -> 75 passed
• git status clean, .venv312/ correctly ignored rather than untracked
• No tracked file outside .gitignore mentions .venv312, and CI builds its own environment with setup-python, so it never used the committed one

The diff is 5,425 deletions plus three lines of .gitignore, so it reads best with whitespace hidden or by looking at .gitignore alone.