add-lang.yml

name: Add new language
on:
  issues:
    types: [ labeled ]
jobs:
  add_new_language:
    permissions:
      contents: write
      issues: write
    runs-on: ubuntu-latest
    if: github.event.label.name == 'new language'
    steps:

# Check whether the language has been written correctly:
      - name: Check issue title format
        env:
          ISSUE_TITLE: ${{ github.event.issue.title }}
          ISSUE_NUM: ${{ github.event.issue.number }}
        run: |
          LANG_CODE=$(sed 's/.*\[\([^]]*\)].*/\1/' <<< "$ISSUE_TITLE")
          FULL_LANG=$(sed 's/.*<\([^>]*\)>.*/\1/' <<< "$ISSUE_TITLE")
          if [[ "$LANG_CODE" =~ ^[a-z]{2}(-[A-Z]{2})?$ ]]; then
            if echo "$ISSUE_TITLE" | grep -q '<[^>]\+>'; then
              echo "lang_code=$LANG_CODE" >> $GITHUB_ENV
              echo "full_lang=$FULL_LANG" >> $GITHUB_ENV
              echo "issue_num=$ISSUE_NUM" >> $GITHUB_ENV
            else
              echo Error: language name in wrong format.
              exit 1
            fi
          else
            echo Error: language code in wrong format.
            exit 1
          fi

# Check out repo:
      - uses: actions/checkout@v4
        with:
          ref: next-release

# Check if language has been added previously.
      - name: Check if language is already present
        run: |
          if [ -d "_translator-files/po/${{ env.lang_code }}" ] ; then
            echo Error: The language [${{ env.lang_code }}] seems to already exist.
            exit 1
          else
            echo Language: [${{ env.lang_code }}] seems to be new as no Language: [${{ env.lang_code }}] was found. Proceeding to add [${{ env.lang_code }}].
          fi

# Check po4a cache. If CACHE_HIT: true, retrieve the cache.
# If not, install po4a and its dependencies and copy them all to a folder (~/po4a/) to be cached:
      - name: Check for po4a cache
        uses: actions/cache@v4
        id: cache-po4a
        with:
          path: "~/po4a"
          key: ${{ runner.os }}-po4a-0.68
      - name: Install/retrieve po4a from cache
        env:
          CACHE_HIT: ${{ steps.cache-po4a.outputs.cache-hit }}
        run: ./_po4a-tools/po4a-cache.sh

# Create dirs and files for new language:
      - name: Create po files, non-wiki dirs, screenshots and symlinks for new lang
        run: ./_po4a-tools/po4a-add-language.sh

# Push changes to 'next-release':
      - name: Push changes to repo
        uses: EndBug/add-and-commit@v9
        with:
          branch: next-release
          default_author: github_actions
          message: 'AUTO: Add new language: ${{ env.lang_code }}: ${{ env.full_lang }} #${{ env.issue_num }}'

# Add comment to issue informing of the creation of the language files:
      - name: Add comment to issue
        uses: peter-evans/create-or-update-comment@v4
        with:
          issue-number: ${{ env.issue_num }}
          body: |
            - The .po files have been created for **${{ env.full_lang }}** and are now available on [Weblate](https://hosted.weblate.org/projects/jamulus/#languages). If you prefer not to use Weblate and intend to submit translations via a Pull Request, your language files can be found on the `next-release` branch in `_translator-files/po/${{ env.lang_code }}/`.
            - Please consult [this README file](https://github.com/jamulussoftware/jamuluswebsite/tree/next-release/_translator-files#readme) for more information on the translation process.

# Create target translated files. Never pushed to the repo.
      - name: Create translated docs
        run: ./_po4a-tools/po4a-create-all-targets.sh

# Build site
      - name: Build the site in the jekyll/builder container
        run: |
          docker run \
          -v ${{ github.workspace }}:/srv/jekyll -v ${{ github.workspace }}/_site:/srv/jekyll/_site \
          jekyll/builder:latest /bin/bash -c "chmod a+w /srv/jekyll/Gemfile.lock && chmod 777 /srv/jekyll && jekyll build --future"