Comment flake.lock changelog

Automatically add comments to pull requests that modify flake.lock files, summarizing the changes made to the flake inputs. This action is meant to be used as a helper to update-flake-lock.

Inputs

Input	Description	Default
pull-request-number	Id of the PR that will be analyzed by the action	none, required
token	Token used for authentication with Github API	${{ github.token }}

Example usage

name: Update flake.lock

on:
  schedule:
    - cron: '0 0 * * *' # runs daily at 00:00

permissions:
  contents: write
  pull-requests: write

jobs:
  lockfile:
    name: Update lockfile
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v16

      - name: Update flake.lock
        id: update-flake-lock
        uses: DeterminateSystems/update-flake-lock@v24
        with:
          pr-title: "Update flake.lock"
          pr-labels: automated

      - uses: mdarocha/comment-flake-lock-changelog@main
        with:
          pull-request-number: ${{ steps.update-flake-lock.outputs.pull-request-number }}

Example result