label-version-bump.yml

name: Autobump

on:
    pull_request

jobs:
    label-version-bump:
        name: Bump version based on PR label
        runs-on: ubuntu-20.04
        if: |
          (
                contains(github.event.pull_request.labels.*.name, 'bump patch')
                || contains(github.event.pull_request.labels.*.name, 'bump minor')
                || contains(github.event.pull_request.labels.*.name, 'bump major')
            )
        steps:
            - name: Check out repository
              uses: actions/checkout@v4
              with:
                  ref: ${{ github.event.pull_request.base.ref }}
                  token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}
                  fetch-depth: 0

            - uses: pnpm/action-setup@v4
              with:
                version: 8.x.x

            - name: Set up Rust
              run: |
                rustup update stable
                rustup default stable

            - name: Install cargo-edit
              run: cargo install cargo-edit

            - name: Detect version bump type
              id: bump-type
              run: |
                  BUMP_TYPE=null
                  if [[ $BUMP_PATCH_PRESENT == 'true' ]]; then
                      BUMP_TYPE=patch
                  fi
                  if [[ $BUMP_MINOR_PRESENT == 'true' ]]; then
                      BUMP_TYPE=minor
                  fi
                  if [[ $BUMP_MAJOR_PRESENT == 'true' ]]; then
                      BUMP_TYPE=major
                  fi
                  echo "bump-type=$BUMP_TYPE" >> "$GITHUB_OUTPUT"
              env:
                  BUMP_PATCH_PRESENT: ${{ contains(github.event.pull_request.labels.*.name, 'bump patch') }}
                  BUMP_MINOR_PRESENT: ${{ contains(github.event.pull_request.labels.*.name, 'bump minor') }}
                  BUMP_MAJOR_PRESENT: ${{ contains(github.event.pull_request.labels.*.name, 'bump major') }}

            - name: Update version in cargo.toml
              if: steps.bump-type.outputs.bump-type != 'null'
              run: |
                  OLD_VERSION=$(cargo metadata --no-deps --format-version 1 | jq -r '.packages[] | select(.name == "posthog-rs") | .version')
                  cargo set-version --bump ${{ steps.bump-type.outputs.bump-type }}
                  NEW_VERSION=$(cargo metadata --no-deps --format-version 1 | jq -r '.packages[] | select(.name == "posthog-rs") | .version')
                  echo "old-version=$OLD_VERSION" >> "$GITHUB_OUTPUT"
                  echo "new-version=$NEW_VERSION" >> "$GITHUB_OUTPUT"

            - name: Update CHANGELOG.md
              run: |
                  CHANGELOG_HEADING='## ${{ steps.versions.outputs.new-version }} - '$(date --iso-8601)
                  CHANGELOG_POINTS=$(git log v${{ steps.versions.outputs.old-version }}..${{ github.event.pull_request.base.ref }} --pretty=format:%s --grep='^.*\d*)$' | sed -e 's/^/- /')
                  mv CHANGELOG.md CHANGELOG.old.md
                  echo -e "$CHANGELOG_HEADING\n\n$CHANGELOG_POINTS\n\n$(cat CHANGELOG.old.md)" > CHANGELOG.md
                  rm CHANGELOG.old.md

            - name: Commit bump
              if: steps.bump-type.outputs.bump-type != 'null'
              uses: EndBug/add-and-commit@v7
              with:
                  branch: ${{ github.event.pull_request.base.ref }}
                  message: "chore: Bump version to ${{ steps.versions.outputs.new-version }}"
                  github_token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}