Post Update Hooks

Bazel Steward is able to run arbitrary commands and commit their effects into its pull requests. It is useful for running tools like buildifier or pinning dependencies.

post-update-hooks:
  - kinds: maven
    commands:
      - "REPIN=1 bazel run @unpinned_maven//:pin"
    files-to-commit:
      - "maven_install.json"
    run-for: commit
  - commands: "buildifier --lint=fix -r ."
    files-to-commit:
      - "**/*.bzl"
      - "**/BUILD.bazel"
      - "WORKSPACE"
    run-for: pull-request
    commit-message: "Apply buildifier"

Available fields:

• commands (list of strings)
  List of commands to run after applying an update. Commands are run separately under sh -c
• files to commit (list of strings)
  List of path patterns of files to commit after running the commands (syntax is the same as for search-paths.path-patterns).
• run-for (string)
  Scope for running commands.
  1. commit - runs for each commit and includes changes in the commit
  2. pull-request - runs for the whole pull request, after creating all commits. It creates a separate commit with modified files. Message can be configured with the commit-message setting.