Improve compatibility of PopPUNK v2.7.8 #113
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| name: Dockerfile Diff Bot | |
| on: | |
| issue_comment: | |
| types: [created] | |
| jobs: | |
| compare-dockerfiles: | |
| # Trigger whenever the bot handle is mentioned in a PR | |
| if: | | |
| contains(github.event.comment.body, '@staphb-dockerbuilds-diff') | |
| runs-on: ubuntu-latest | |
| permissions: | |
| pull-requests: write | |
| contents: read | |
| steps: | |
| - name: Checkout Pull Request Code | |
| uses: actions/checkout@main | |
| with: | |
| ref: refs/pull/${{ github.event.issue.number }}/head | |
| - name: Parse and Compare | |
| id: diff_gen | |
| run: | | |
| COMMENT_BODY="${{ github.event.comment.body }}" | |
| # 1. Extract everything after the bot handle | |
| # 2. Strip "list diff" if it happens to be there | |
| # 3. Pull the next three words as IMAGE, OLD, NEW | |
| PAYLOAD=$(echo "$COMMENT_BODY" | sed -E 's/.*@staphb-dockerbuilds-diff //I') | |
| CLEAN_PARAMS=$(echo "$PAYLOAD" | sed -E 's/^list diff //I') | |
| IMAGE=$(echo "$CLEAN_PARAMS" | awk '{print $1}') | |
| OLD_VER=$(echo "$CLEAN_PARAMS" | awk '{print $2}') | |
| NEW_VER=$(echo "$CLEAN_PARAMS" | awk '{print $3}') | |
| FILE_OLD="build-files/$IMAGE/$OLD_VER/Dockerfile" | |
| FILE_NEW="build-files/$IMAGE/$NEW_VER/Dockerfile" | |
| echo "image_name=$IMAGE" >> $GITHUB_OUTPUT | |
| echo "old_ver=$OLD_VER" >> $GITHUB_OUTPUT | |
| echo "new_ver=$NEW_VER" >> $GITHUB_OUTPUT | |
| # Validation | |
| if [[ -z "$IMAGE" || -z "$OLD_VER" || -z "$NEW_VER" ]]; then | |
| echo "error_msg=Format error. Expected: @staphb-dockerbuilds-diff <image> <old> <new>" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| if [[ ! -f "$FILE_OLD" ]]; then | |
| echo "error_msg=File not found: $FILE_OLD" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| if [[ ! -f "$FILE_NEW" ]]; then | |
| echo "error_msg=File not found: $FILE_NEW" >> $GITHUB_OUTPUT | |
| exit 0 | |
| fi | |
| # Generate Diff | |
| DIFF_RESULT=$(diff -u "$FILE_OLD" "$FILE_NEW" || true) | |
| if [ -z "$DIFF_RESULT" ]; then | |
| echo "diff_output=No changes found between these versions." >> $GITHUB_OUTPUT | |
| else | |
| { | |
| echo 'diff_output<<EOF' | |
| echo "$DIFF_RESULT" | |
| echo 'EOF' | |
| } >> "$GITHUB_OUTPUT" | |
| fi | |
| - name: Post Comment to PR | |
| uses: peter-evans/create-or-update-comment@main | |
| with: | |
| issue-number: ${{ github.event.issue.number }} | |
| body: | | |
| ### Dockerfile Diff: ${{ steps.diff_gen.outputs.image_name }} | |
| Comparing: ${{ steps.diff_gen.outputs.old_ver }} -> ${{ steps.diff_gen.outputs.new_ver }} | |
| ${{ steps.diff_gen.outputs.error_msg }} | |
| ```diff | |
| ${{ steps.diff_gen.outputs.diff_output }} | |
| ``` |