Keycloak

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name: Labeller
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on:
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  pull_request_target:
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    types: closed
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jobs:
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  label:
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    runs-on: ubuntu-latest
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    permissions:
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      contents: read
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      issues: write
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    steps:
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      - uses: actions/checkout@v4
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        with:
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          sparse-checkout: .github/scripts
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      - name: Add release labels on merge
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        run: |
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          PR_NUMBER="${{ github.event.pull_request.number }}"
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          echo "Base REF:   $GITHUB_BASE_REF"
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          echo "**Branch:** [$GITHUB_BASE_REF](https://github.com/$GITHUB_REPOSITORY/tree/$GITHUB_BASE_REF)" >> $GITHUB_STEP_SUMMARY
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          echo "PR:         https://github.com/$GITHUB_REPOSITORY/pull/$PR_NUMBER"
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          echo "**PR:** [$PR_NUMBER](https://github.com/$GITHUB_REPOSITORY/pull/$PR_NUMBER)" >> $GITHUB_STEP_SUMMARY
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          if [ "$GITHUB_BASE_REF" == "main" ]; then
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            LAST_MAJOR="$(gh api /repos/$GITHUB_REPOSITORY/branches --paginate --jq .[].name | grep '^release/' | cut -d '/' -f 2 | cut -d '.' -f 1 | sort -n -r | head -n 1)"
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            NEXT_MAJOR="$(($LAST_MAJOR + 1))"
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            LABEL="release/$NEXT_MAJOR.0.0"
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            BACKPORT_LABEL="backport/main"
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          elif [[ "$GITHUB_BASE_REF" = release/* ]]; then
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            MAJOR_MINOR="$(echo $GITHUB_BASE_REF | cut -d '/' -f 2)"
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            LAST_MICRO="$(gh api /repos/$GITHUB_REPOSITORY/tags --jq .[].name | sort -n -r | grep $MAJOR_MINOR | head -n 1 | cut -d '.' -f 3)"
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            NEXT_MICRO="$(($LAST_MICRO + 1))"
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            LABEL="release/$MAJOR_MINOR.$NEXT_MICRO"
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            BACKPORT_LABEL="backport/$MAJOR_MINOR"
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          fi
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          echo "Label:      $LABEL"
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          echo "**Label:** [$LABEL](https://github.com/$GITHUB_REPOSITORY/labels/$(echo $LABEL | sed 's|/|%2F|g'))" >> $GITHUB_STEP_SUMMARY
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          gh api "repos/$GITHUB_REPOSITORY/labels/$(echo $LABEL | sed 's|/|%2F|g')" --silent 2>/dev/null || gh label create -R "$GITHUB_REPOSITORY" "$LABEL" -c "0E8A16"
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          echo ""
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          echo "" >> $GITHUB_STEP_SUMMARY
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          echo "Updating issues:"
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          echo "**Updating issues:**" >> $GITHUB_STEP_SUMMARY
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          ISSUES=$(.github/scripts/pr-find-issues.sh "$PR_NUMBER" "$GITHUB_REPOSITORY")
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          for ISSUE in $ISSUES; do
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            gh issue edit "$ISSUE" -R "$GITHUB_REPOSITORY" --add-label "$LABEL" --remove-label "$BACKPORT_LABEL"
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            echo "* [$ISSUE](https://github.com/$GITHUB_REPOSITORY/issues/$ISSUE)" >> $GITHUB_STEP_SUMMARY
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          done
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        if: github.repository	== 'keycloak/keycloak' && github.event_name == 'pull_request_target' && github.event.action == 'closed' && github.event.pull_request.merged == true
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        env:
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          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
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