update-ic-commit.yml

# A GitHub Actions workflow that regularly creates a pull request to update the IC artifacts
name: IC Artifacts Update

on:
  push:
  schedule:
    # create a new pull request every monday
    - cron:  '0 0 * * MON'

jobs:
  ic-update:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

        # First, check if there is a newer version and update the file referencing the version
      - name: Check new ic version
        id: update
        run: |
          # Not all ic commits are built and released, so we go through the last commits until we found one
          # which has associated artefacts
          while read -r sha
          do
              echo "sha: $sha"
              # Send a HEAD to the URL to see if it exists
              if curl --fail --head --silent --location \
                  "https://download.dfinity.systems/ic/$sha/binaries/x86_64-linux/ic-test-state-machine.gz"
              then
                  echo "$sha appears to have associated binary, using"
                  latest_sha="$sha"
                  break
              else
                  echo "$sha does not seem to have associated binary"
              fi
          done < <(curl \
              -SsL \
              -H "Accept: application/vnd.github+json" \
              -H "X-GitHub-Api-Version: 2022-11-28" \
              https://api.github.com/repos/dfinity/ic/commits | jq -cMr '.[] | .sha')

          # If we couldn't find any sha with associated artefacts, abort
          if [ -z "${latest_sha:-}" ]
          then
              echo no sha found
              exit 1
          fi

          # Compare the current and latest shas, and potentially update the relevant files
          current_sha=$(sed <.ic-commit 's/#.*$//' | sed '/^$/d')

          echo current sha is "$current_sha"

          if [ "$current_sha" != "$latest_sha" ]; then
            echo "updating $current_sha to $latest_sha"
            sed -i -e \
              "s/$current_sha/$latest_sha/g" \
              ".ic-commit"
          else
            echo "not updating $current_sha"
            echo "updated=0" >> "$GITHUB_OUTPUT"
          fi

          cat ".ic-commit"

      # If the ic commit was updated, create a PR.
      - name: Create Pull Request
        if: ${{ steps.update.outputs.updated == '1' }}
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          base: master
          add-paths: ./.ic-commit
          commit-message: Update commit of IC artifacts
          committer: GitHub <noreply@github.com>
          author: SDK <team-sdk@dfinity.org>
          branch: bot-ic-update
          delete-branch: true
          title: 'Update commit of IC artifacts'