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4812e35486
The repository commits API (`GET /repos/{owner}/{repo}/commits`) accepts
`since` and `until` query parameters and filters the returned page of
commits by commit date. However, the `X-Total-Count` and `X-Total`
response headers reported the *unfiltered* total number of commits, so
the advertised total could be far larger than the number of commits
actually returned for the requested date range. With a range that
matches no commits, the page is correctly empty while the headers still
claim the full repository total.
## Root cause
`gitrepo.CommitsCount` declared `Since` and `Until` options and the API
handler populated them, but the function never appended
`--since`/`--until` to the underlying `git rev-list --count` invocation.
The date filters were silently dropped, so the count always reflected
the entire revision history.
## Fix
Pass the `Since`/`Until` options through to `git rev-list`, mirroring
the existing commit-listing path (`commitsByRangeWithTime`). The
reported total now matches the filtered range used to build the page.
## Testing
Added `TestCommitsCountWithSinceUntil` in
`modules/gitrepo/commit_test.go`, a table-driven unit test against the
`repo1_bare` fixture covering `since`, `until`, and a bounded
`since`+`until` range. It fails on the pre-fix code (every case returns
the full count of 3) and passes after the change. Existing
`CommitsCount` tests remain green.
## Notes
- No new settings, no default changes; this corrects an incorrect header
value and is backward compatible. Clients that depend on `since`/`until`
already filter the returned commits, and the headers now agree with that
filtering.
Fixes #35886.
---
*AI-assistance disclosure:* this change was developed with the
assistance of Claude Code (Claude Opus 4.8). I have reviewed and
understand the change and take responsibility for it.