Composer Diff action

This action compares your composer.lock files and generates human-readable report with packages changed in PR or commit using composer-diff. You may use the action output to annotate your code or add a comment to your Pull Request.

Example

Here's an example of the Composer Diff Github Action providing feedback on a Pull Request:

Note: you must use the actions/checkout step with fetch-depth: 0 as shown below before running the Composer Diff action in order for it to function properly You may set it to 1 if you want to compare only with the previous commit.

name: Composer Diff
on:
  pull_request:
    paths:
      - 'composer.lock'
jobs:
  composer-diff:
    name: Composer Diff
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0 # Required to make it possible to compare with PR base branch

      - name: Generate composer diff
        id: composer_diff # To reference the output in comment
        uses: IonBazan/composer-diff-action@v1

      - uses: marocchino/sticky-pull-request-comment@v2
        # An empty diff result will break this action.
        if: ${{ steps.composer_diff.outputs.composer_diff_exit_code != 0 }}
        with:
          header: composer-diff # Creates a collapsed comment with the report
          message: |
            <details>
            <summary>Composer package changes</summary>

            ${{ steps.composer_diff.outputs.composer_diff }}

            </details>

Inputs

This action takes same input arguments as the composer-diff command:

• base - base (old) composer.lock path and/or git reference - default: ${{ github.event.pull_request.base.sha }} (last commit in base branch of PR)

  To use it with custom composer.lock path, follow commit_hash:path/to/composer.lock convention.

• target - target (new) composer.lock path and/or git reference - default: composer.lock (current file version)

  Follows same convention as base argument

• format - output format - either mdtable, mdlist or json - see composer-diff documentation - default: mdtable

• strict - returns non-zero exit code if there are any changes - default: false

• no-dev - excludes dev dependencies - default: false

• no-prod - excludes prod dependencies - default: false

• with-platform - include platform (php, ext-*) dependencies - default: false

• with-links - adds compare/release URLs - default: false

• extra-arguments - additional arguments to be passed to the command - default: --ansi (for colorful output)

Outputs

This command produces an output named composer_diff containing the output of the command with stripped colors and prepared for processing further with other actions (creating a comment, annotation, etc.).

Result of command is available as composer_diff_exit_code:

• 0 - OK.
• 1 - General error.
• 2 - There were changes in prod packages.
• 4 - There were changes is dev packages.
• 8 - There were downgrades in prod packages.
• 16 - There were downgrades in dev packages.

You may reference it using:

steps:
  - name: Generate composer diff
    id: composer_diff
    uses: IonBazan/composer-diff-action@v1
  - uses: foo/bar@v1
    with:
      diff: ${{ steps.composer_diff.outputs.composer_diff }}

Usage with push or schedule triggered workflows

This action is intended to be used with Pull Requests, hence base defaults to ${{ github.event.pull_request.base.sha }} which produces an empty string for runs triggered without a PR. This may cause issues when running it in a workflow triggered with a push or cron, producing an empty diff as composer-diff will use same file for base and head (see #9).

To prevent this from happening, set base parameter to HEAD (or any other git reference):

      - name: Generate composer diff
        id: composer_diff # To reference the output in comment
        uses: IonBazan/composer-diff-action@v1
        with: 
          base: HEAD
          no-dev: true
          format: mdlist