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Detect CI

Momentic auto-detects CI by reading CI=true. If your provider doesn’t set it, set it yourself so all CI-related defaults kick in.

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Saving caches

Momentic doesn’t save caches on the configured main branch by default (avoids pollution from local runs). Supported CI providers (GitHub Actions, GitLab CI, Travis CI) override this automatically. On custom setups, pass --save-cache to enable cache saving: 
npx momentic run --save-cache [options] [tests...]
Always save caches in CI. See Step cache for how caching works.

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Git metadata

Momentic collects git metadata to power cache isolation, run traceability, and status posts. It reads metadata via the git CLI or provider-specific handling. If your CI runner doesn’t have git or runs in a shallow state, provide metadata yourself via env vars.
For best cache performance, provide at minimum GIT_BRANCH_NAME, GIT_COMMIT_SHA, GIT_COMMIT_TIMESTAMP, LAST_COMMIT_ON_MAIN_SHA, LAST_COMMIT_ON_MAIN_TIMESTAMP, and if possible MERGED_GIT_BRANCH_NAME.
  • MOMENTIC_GIT_OVERRIDE=true: must be set to enable git metadata overrides
  • GIT_COMMIT_SHA: the full commit SHA
  • GIT_COMMIT_SHA_SHORT: the short commit SHA (if not provided, this will be derived from the full SHA)
  • GIT_COMMIT_TIMESTAMP: the current commit timestamp in ISO 8601 format
  • GIT_BRANCH_NAME: the current branch name
  • GIT_ORIGIN_URL: the git origin URL
  • GIT_COMMIT_AUTHOR_NAME: the commit author’s name
  • GIT_COMMIT_MESSAGE: the commit message
  • LAST_COMMIT_ON_MAIN_SHA: the full commit SHA of the last commit on main. When using git, this is the output of running git merge-base main HEAD. On main, this is the current commit SHA.
  • LAST_COMMIT_ON_MAIN_TIMESTAMP: the commit timestamp of LAST_COMMIT_ON_MAIN_SHA in ISO 8601 format.
  • MERGED_GIT_BRANCH_NAME: when on main, the name of the branch that was merged to create the current commit. This is usually derived from pull/merge requests using our GitHub/GitLab integrations.
  • GITHUB_REPOSITORY: the GitHub repository name in the format owner/repo (if applicable)
  • GITLAB_PROJECT_PATH: the GitLab project path in the format group/subgroup/repo (if applicable)
  • GIT_USERNAME: the username of the current git user (if applicable)
  • GIT_EMAIL: the email of the current git user (if applicable)
  • GIT_NAME: the name of the current git user (if applicable)