version-bump.yaml

---
name: Version bump ⬆

on:
  push:
    branches:
      - main
  workflow_dispatch:
  workflow_call:
    secrets:
      REPO_GITHUB_TOKEN:
        description: Github token with write access to the repo
        required: false
    inputs:
      disable-precommit-autoupdate:
        description: Disable precommit autoupdate
        required: false
        default: false
        type: boolean
      vbump-after-release:
        description: Whether the vbump workflow is running after a release has been published
        required: false
        default: false
        type: boolean
      package-subdirectory:
        description: Subdirectory in the repository, where the R package is located.
        required: false
        type: string
        default: "."

concurrency:
  group: vbump-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  vbump:
    name: Bump version ⤴
    runs-on: ubuntu-latest
    if: |
      !(contains(github.event.commits[0].message, '[skip vbump]') ||
        contains(github.event.head_commit.message, '[skip vbump]')
      )
    container:
      image: docker.io/rocker/tidyverse:latest

    steps:
      - name: Setup token 🔑
        id: github-token
        run: |
          if [ "${{ secrets.REPO_GITHUB_TOKEN }}" == "" ]; then
            echo "REPO_GITHUB_TOKEN is empty. Substituting it with GITHUB_TOKEN."
            echo "token=${{ secrets.GITHUB_TOKEN }}" >> $GITHUB_OUTPUT
          else
            echo "Using REPO_GITHUB_TOKEN."
            echo "token=${{ secrets.REPO_GITHUB_TOKEN }}" >> $GITHUB_OUTPUT
          fi
        shell: bash

      - name: Get branch names 🌿
        id: branch-name
        uses: tj-actions/branch-names@v7

      - name: Checkout repo 🛎
        uses: actions/checkout@v4.1.1
        with:
          ref: ${{ steps.branch-name.outputs.head_ref_branch }}
          token: ${{ steps.github-token.outputs.token }}

      - name: Bump version in DESCRIPTION 📜
        if: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/main') || inputs.vbump-after-release == true }}
        run: desc::desc_bump_version("dev", normalize = TRUE)
        shell: Rscript {0}
        working-directory: ${{ inputs.package-subdirectory }}

      - name: Update Date field 📅
        run: if (desc::desc_has_fields("Date")) desc::desc_set("Date", Sys.Date())
        shell: Rscript {0}
        working-directory: ${{ inputs.package-subdirectory }}

      - name: Bump version in NEWS.md 📰
        run: |
          if [ -f NEWS.md ]
          then {
            git config --global --add safe.directory $(pwd)
            DESC_VERSION=$(R --slave -e 'cat(paste(desc::desc_get_version()))' | tr -d '\n' | xargs)
            NEWS_VERSION=$(awk '/^#+ /{print $3,$4; exit}' NEWS.md | tr -d '\n' | xargs)
            FIRST_NEWS_LINE=$(head -1 NEWS.md)
            if [ "${{ inputs.vbump-after-release }}" == "true" ]; then
              # Add a new section with the released version that will be vbumped below.
              printf "$FIRST_NEWS_LINE\n\n" | cat - NEWS.md > temp-news.md
              mv temp-news.md NEWS.md
            fi
            # Replace only the first occurence of $NEWS_VERSION,
            # but only if it's not already set to (development version)
            if [ $NEWS_VERSION != "(development version)" ]
            then {
              sed -i "0,/$NEWS_VERSION/s/$NEWS_VERSION/$DESC_VERSION/" NEWS.md
            }
            fi
            echo "NEW_PKG_VERSION=${DESC_VERSION}" >> $GITHUB_ENV
          }
          fi
        shell: bash
        working-directory: ${{ inputs.package-subdirectory }}

      - name: Check if a pre-commit config exists
        id: precommit-config-exists
        uses: andstor/file-existence-action@v3
        with:
          files: ".pre-commit-config.yaml"

      - name: Setup Python 🐍
        if: |
          inputs.disable-precommit-autoupdate != 'true' &&
            steps.precommit-config-exists.outputs.files_exists == 'true'
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Precommit autoupdate 🅿️
        if: |
          inputs.disable-precommit-autoupdate != 'true' &&
            steps.precommit-config-exists.outputs.files_exists == 'true'
        run: |
          git config --global --add safe.directory $(pwd)
          python -m pip -q install pre-commit
          pre-commit autoupdate

      - name: Checkout to main 🛎
        if: ${{ inputs.vbump-after-release == true }}
        run: |
          git fetch origin main
          git checkout main
          git pull origin main

      - name: Set file pattern to commit ⚙️
        id: file-pattern
        run: |
          if [[ "${{ inputs.package-subdirectory }}" == "." || "${{ inputs.package-subdirectory }}" == "" ]]; then
            FILE_PATTERN="NEWS.md DESCRIPTION"
          else
            FILE_PATTERN="${{ inputs.package-subdirectory }}/NEWS.md ${{ inputs.package-subdirectory }}/DESCRIPTION"
          fi
          if [[ '${{ steps.precommit-config-exists.outputs.files_exists }}' == 'true' ]]; then
            FILE_PATTERN="$FILE_PATTERN .pre-commit-config.yaml"
          fi
          echo "file-pattern=$FILE_PATTERN" >> $GITHUB_OUTPUT
        shell: bash

      - name: Commit and push changes 📌
        if: ${{ env.NEW_PKG_VERSION }}
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "[skip actions] Bump version to ${{ env.NEW_PKG_VERSION }}"
          file_pattern: "${{ steps.file-pattern.outputs.file-pattern }}"
          commit_user_name: github-actions
          commit_user_email: >-
            41898282+github-actions[bot]@users.noreply.github.com
        continue-on-error: true