CI & shallow clones

GitHub Actions, GitLab CI, and Bitbucket Pipelines shallow-clone by default, which makes git blame under-report authors. Fix it in your CI config:

• GitHub Actions: with: { fetch-depth: 0 } on actions/checkout.
• GitLab CI: set GIT_DEPTH: 0 in the job or globally.
• Bitbucket Pipelines: clone: depth: full in the pipeline definition.

The plugin logs one build warning when it detects a shallow clone, so the cause shows up in your CI output.

Mailmap

Git reads .mailmap from the repo root. If a contributor commits under multiple emails or display names, add a .mailmap file:

Jane Doe <jane@example.com> <jane@oldcompany.com>
Jane Doe <jane@example.com> <jane@github>

Git applies these aliases automatically when it reads blame data.