release.yml

name: Package and Release JAR

on:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  jar-and-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set environment variables
        run: |
          set -euo pipefail
          # Always use the same JAR name
          JAR_NAME="btw-translations.jar"
          echo "JAR_NAME=$JAR_NAME" >> $GITHUB_ENV

      - name: Inject version into fabric.mod.json
        run: |
          set -euo pipefail
          # Read current version from fabric.mod.json
          CURRENT_VERSION=$(jq -r '.version' fabric.mod.json)
          echo "Current version: $CURRENT_VERSION"

          # Extract major and minor parts (e.g., 1.0 from 1.0.0-dev)
          MAJOR_MINOR=$(echo "$CURRENT_VERSION" | sed -E 's/^([0-9]+\.[0-9]+).*/\1/')
          
          # Use GitHub run number as patch
          PATCH="$GITHUB_RUN_NUMBER"

          # Construct new version: 1.0.X
          INJECTED_VERSION="${MAJOR_MINOR}.${PATCH}"
          echo "INJECTED_VERSION=$INJECTED_VERSION" >> $GITHUB_ENV

          # Update fabric.mod.json with new version
          jq --arg v "$INJECTED_VERSION" '.version = $v' fabric.mod.json > fabric.mod.json.tmp
          mv fabric.mod.json.tmp fabric.mod.json

          # Set release title using version
          RELEASE_TITLE="BTW Translations Nightly $INJECTED_VERSION"
          echo "RELEASE_TITLE=$RELEASE_TITLE" >> $GITHUB_ENV

      - name: Create JAR of repository
        run: |
          set -euo pipefail
          # Build JAR excluding .git, .github, and .gitignore
          find . -type f \
            ! -path "./.git/*" \
            ! -path "./.github/*" \
            ! -name ".gitignore" \
            ! -name "$JAR_NAME" \
            -print0 | xargs -0 jar cf "$JAR_NAME"

      - name: Create GitHub release and attach JAR
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          TAG="$INJECTED_VERSION"
          TITLE="$RELEASE_TITLE"
          NOTES="Automated nightly release for commit ${GITHUB_SHA} on branch ${GITHUB_REF#refs/heads/}"

          gh release create "$TAG" "$JAR_NAME" \
            -t "$TITLE" \
            -n "$NOTES" \
            --repo "${{ github.repository }}"

          echo "Created release $TAG with asset $JAR_NAME"