ruby.git/tool/test, branch v4.0.2

test_sync_default_gems.rb: Omit if git is v2.43 or older

2025-12-17T18:45:57+00:00

test_commit_email.rb: Ensure #teardown doesn't fail

2025-12-17T18:22:00+00:00

if test is omitted.

Follow up c4e090def134f9b109991b74c027648564963763

Omit a test on s390x linux tripping over a git bug

2025-11-20T00:03:23+00:00

This test has been reliably failing on recent trunk versions.

See:

Skip TestCommitEmail if git is not available.

2025-11-17T07:08:31+00:00

https://github.com/ruby/actions/actions/runs/19420968008/job/55558315338

```
    1) Error:
  TestCommitEmail#test_sendmail_encoding:
  Test::Unit::ProxyError: No such file or directory - git
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/lib/open3.rb:534:in 'Kernel#spawn'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/lib/open3.rb:534:in 'Open3.popen_run'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/lib/open3.rb:379:in 'Open3.popen2'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/lib/open3.rb:785:in 'Open3.capture2'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:89:in 'TestCommitEmail#git'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:13:in 'block in TestCommitEmail#setup'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:12:in 'Dir.chdir'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:12:in 'TestCommitEmail#setup'

    2) Error:
  TestCommitEmail#test_sendmail_encoding:
  Test::Unit::ProxyError: no implicit conversion of nil into String
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:37:in 'File.unlink'
      /home/runner/work/actions/actions/ruby-4.0.0-preview2/tool/test/test_commit_email.rb:37:in 'TestCommitEmail#teardown'
```

Exclude lib/unicode_normalize from lib/un

2025-11-13T12:27:53+00:00

Use path in tmpdir instead of IO::NULL

2025-11-13T04:34:33+00:00

The path already used in tool/test/test_sync_default_gems.rb .

Try to fix errors on Windows.

https://github.com/ruby/ruby/actions/runs/19316448613/job/55248700110

Ignore ~/.gitconfig

2025-11-13T00:34:08+00:00

I use `commit.gpgsign=true`, so I want to ignore it in tests.

sync_default_gems.rb: gracefully handle merge commits

2025-11-05T06:01:16+00:00

Find interesting commits by following parents instead of relying on
"git log".

If we encounter a merge commit that may contain a conflict resolution,
fall back to cherry-picking the merge commit as a whole rather than
replaying each individual commit. The sync commit will include a
shortlog for the squashed commits in that case.

sync_default_gems.rb: use declarative mapping rules

2025-11-05T06:01:16+00:00

No behavior change is intended by this change.

sync_default_gems.rb: simplify rewriting commit message

2025-11-05T06:01:16+00:00

Use "git commit --amend" instead of "git filter-branch" since we only
need to handle one commit at HEAD.