# This workflow checks that Zebra's crates.io release script works.
#
# We use a separate action, because the changed files are different to a Continuous Deployment
# or Docker release.
#
# This workflow is triggered when:
# - A PR that changes Rust files, a README, or this workflow is opened or updated
# - A change is pushed to the main branch
#
# TODO:
# If we decide to automate crates.io releases, we can also publish crates using this workflow, when:
# - A release is published
# - A pre-release is changed to a release

name: Release crates

# Ensures that only one workflow task will run at a time. Previous releases, if
# already in process, won't get cancelled. Instead, we let the first release complete,
# then queue the latest pending workflow, cancelling any workflows in between.
#
# Since the different event types do very different things (test vs release),
# we can run different event types concurrently.
#
# For pull requests, we only run the tests from this workflow, and don't do any releases.
# So an in-progress pull request gets cancelled, just like other tests.
concurrency:
  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}


on:
# disabled for now
#  release:
#    types:
#      - released

  # Only runs the release tests, doesn't release any crates.
  #
  # We test all changes on the main branch, just in case the PR paths are too strict.
  push:
    branches:
      - main

  pull_request:
    paths:
      # code and tests
      - '**/*.rs'
      # hard-coded checkpoints (and proptest regressions, which are not actually needed)
      - '**/*.txt'
      # dependencies
      - '**/Cargo.toml'
      - '**/Cargo.lock'
      # configuration files
      - '.cargo/config.toml'
      - '**/clippy.toml'
      # READMEs, which are shown on the crate page
      - '**/README.md'
      # workflow definitions
      - '.github/workflows/release-crates.io.yml'


jobs:
  # Test that Zebra can be released to crates.io using `cargo`.
  # This checks that Zebra's dependencies and release configs are correct.
  check-release:
    name: Check crate release dry run
    timeout-minutes: 15
    runs-on: ubuntu-latest
    steps:
      - uses: r7kamura/rust-problem-matchers@v1.4.0

      - name: Checkout git repository
        uses: actions/checkout@v4.1.1
        with:
          persist-credentials: false

      - name: Inject slug/short variables
        uses: rlespinasse/github-slug-action@v4
        with:
          short-length: 7

      # Setup Rust with stable toolchain and minimal profile
      - name: Setup Rust
        run: |
          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain=stable --profile=minimal

      - name: Install cargo-release
        uses: baptiste0928/cargo-install@v2.2.0
        with:
          crate: cargo-release

      # Make sure Zebra can be released!
      #
      # These steps should be kept up to date with the release checklist.
      #
      - name: Crate release dry run
        run: |
          ./.github/workflows/scripts/release-crates-dry-run.sh

  # TODO: actually do the release here
  #release-crates:
  #  name: Release Zebra Crates
  #  needs: [ check-release ]
  #  runs-on: ubuntu-latest
  #  timeout-minutes: 30
  #  if: ${{ !cancelled() && !failure() && github.event_name == 'release' }}
  #  steps:
  #  ...

  failure-issue:
    name: Open or update issues for release crates failures
    # When a new job is added to this workflow, add it to this list.
    needs: [ check-release ]
    # Only open tickets for failed or cancelled jobs that are not coming from PRs.
    # (PR statuses are already reported in the PR jobs list, and checked by Mergify.)
    if: (failure() && github.event.pull_request == null) || (cancelled() && github.event.pull_request == null)
    runs-on: ubuntu-latest
    steps:
      - uses: jayqi/failed-build-issue-action@v1
        with:
          title-template: "{{refname}} branch CI failed: {{eventName}} in {{workflow}}"
          # New failures open an issue with this label.
          label-name: S-ci-fail-release-crates-auto-issue
          # If there is already an open issue with this label, any failures become comments on that issue.
          always-create-new-issue: false
          github-token: ${{ secrets.GITHUB_TOKEN }}