Publish Command

Publish any unpublished packages or package versions in your repository to pub.dev. dry-run is enabled by default.

melos publish

--dry-run

Flags whether to publish the packages as a dry run (validate but do not publish). Defaults to true.

# Publish packages with dry run
melos publish --dry-run

# Publish packages without dry run
melos publish --no-dry-run

Use --no-dry-run to disable.

--git-tag-version (-t)

Add any missing git tags for release. Tags are only created if --no-dry-run is also set.

melos publish --no-dry-run --git-tag-version

Note that tags are automatically created as part of melos version (unless --no-git-tag-version is specified when running the version command) so this is usually not required on melos publish unless you're doing a manual version and publish of packages.

Hooks

Melos supports various command lifecycle hooks that can be defined in your melos.yaml.

For example, if you need to run something such as a build runner automatically before melos publish is run and then remove the generated files after publishing is done, you can add pre and post hook scripts to your melos.yaml file:

# melos.yaml
# ...
command:
  publish:
    hooks:
      pre: dart pub run build_runner build
      post: dart pub run build_runner clean
# ...

The pre-hook will run before melos publish and the post-hook will run after melos publish is done. It only runs once, even if multiple packages are published and it also runs when you are doing a dry-run publish. You can detect whether it is a dry-run by checking the MELOS_PUBLISH_DRY_RUN environment variable.