star-history.yml

name: Star History

# Renders this repo's star-growth chart (light/dark SVG + PNG) into
# assets/star-history/ and rewrites the marker block in README.md. The action
# detects whether star data actually changed and only commits when it did, with
# a "[skip ci]" commit message so chart refreshes don't trigger the CI workflow.
# Daily schedule keeps commit noise low; use workflow_dispatch for an on-demand
# refresh (e.g. the first run after merging this workflow).
on:
  schedule:
    - cron: "0 3 * * *"
  workflow_dispatch:

# Serialize refreshes so a manual dispatch can't race the scheduled push.
concurrency:
  group: star-history
  cancel-in-progress: true

# The action commits the refreshed chart and README and pushes to main.
permissions:
  contents: write

jobs:
  star-history:
    name: Render & Commit Chart
    runs-on: ubuntu-latest
    steps:
      # Unlike ci.yml this checkout keeps persist-credentials on (the default):
      # the action's push step authenticates with the persisted GITHUB_TOKEN.
      - name: Checkout
        uses: actions/checkout@v7

      # Pinned to an immutable SHA rather than the mutable v1 tag: this
      # third-party action holds contents:write and pushes to the repo, so its
      # supply chain must not be silently updatable.
      - name: Render and commit star history
        uses: narayann7/star-history-action@c2061675dacbf6f35d116e556015b8905843387f # v1.0.4