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kennethriojakennethrioja
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feat(code-coverage): compares current and base branch code cov %
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‎.github/workflows/test.yml‎

Lines changed: 124 additions & 6 deletions
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name: CI
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on: [push, pull_request]
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on: [pull_request]
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permissions:
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pull-requests: write
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contents: read
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jobs:
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test:
@@ -41,17 +44,132 @@ jobs:
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run: |
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sudo apt-get update
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sudo apt-get install imagemagick
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- name: Check out code
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- name: Check out code on current branch
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uses: actions/checkout@v4
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- name: Install Ruby & gems
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- name: Install Ruby & gems on current branch
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uses: ruby/setup-ruby@v1
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with:
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bundler-cache: true # runs 'bundle install' and caches installed gems automatically
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- name: Configure and initialize database
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- name: Configure and initialize database on current branch
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run: |
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cp test/config/test_tess.yml config/tess.yml
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cp config/secrets.github.yml config/secrets.yml
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cp config/ingestion.example.yml config/ingestion.yml
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bundle exec rake db:test:prepare
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- run: bundle exec rails test
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name: Run tests
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- name: Get all changed rb files
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id: changed-rb-files
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uses: tj-actions/changed-files@24d32ffd492484c1d75e0c0b894501ddb9d30d62 # v47
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with:
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files_ignore: 'test/**'
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files: '**.rb'
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- name: List all changed files rb files on current branch
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if: steps.changed-rb-files.outputs.any_changed == 'true'
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env:
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ALL_CHANGED_FILES: ${{ steps.changed-rb-files.outputs.all_changed_files }}
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run: |
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for file in ${ALL_CHANGED_FILES}; do
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echo "$file was changed"
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done
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echo "ALL_CHANGED_FILES=${ALL_CHANGED_FILES}" >> $GITHUB_ENV
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# CURRENT branch tests
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- name: Run tests and extract current coverage on current branch
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id: current_coverage
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run: |
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bundle install
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bundle exec rails test
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if [ -f coverage/.last_run.json ]; then
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CURRENT_COVERAGE=$(cat coverage/.last_run.json | jq -r '.result.line')
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else
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CURRENT_COVERAGE="0.0"
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fi
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TABLE=$(echo -e "| File | Current coverage (%) |\n|------|--------------|")
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echo "\n********** CODE COVERAGE **********"
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echo "\n*** Current coverage (branch: $(git rev-parse --abbrev-ref HEAD)): $CURRENT_COVERAGE%"
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echo "*** ALL_CHANGED_FILES=${{ env.ALL_CHANGED_FILES }}"
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for file in ${{ env.ALL_CHANGED_FILES }}; do
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COV=$(cat coverage/index.html| grep "\"$file\"" -A 1 | grep t-file__coverage | awk -F '>|%' '{print $2}')
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TABLE=$(echo -e "$TABLE\n| $file | $COV |")
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done
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echo "CURRENT_COV=$CURRENT_COVERAGE" >> $GITHUB_ENV
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echo "CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)" >> $GITHUB_ENV
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{
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echo "TABLE<<EOF"
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echo -e "$TABLE"
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echo "EOF"
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} >> "$GITHUB_ENV"
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# BASE branch tests (usually master, but can be something else)
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- name: Checkout base branch
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uses: actions/checkout@v4
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with:
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ref: ${{ github.event.pull_request.base.ref }}
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path: base_branch
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- name: Install Ruby & gems on base
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uses: ruby/setup-ruby@v1
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with:
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bundler-cache: true # runs 'bundle install' and caches installed gems automatically
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- name: Configure and initialize database on base
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working-directory: base_branch
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run: |
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cp test/config/test_tess.yml config/tess.yml
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cp config/secrets.github.yml config/secrets.yml
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cp config/ingestion.example.yml config/ingestion.yml
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bundle install
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bundle exec rake db:test:prepare
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- name: Run tests and extract current coverage on base
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id: base_coverage
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working-directory: base_branch
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if: steps.changed-rb-files.outputs.any_changed == 'true'
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env:
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ALL_CHANGED_FILES: ${{ steps.changed-rb-files.outputs.all_changed_files }}
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run: |
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bundle install
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bundle exec rails test
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if [ -f coverage/.last_run.json ]; then
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BASE_COVERAGE=$(cat coverage/.last_run.json | jq -r '.result.line')
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else
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BASE_COVERAGE="0.0"
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fi
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echo "\n********** CODE COVERAGE **********"
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echo "\n*** Base coverage (branch: $(git rev-parse --abbrev-ref HEAD)): $BASE_COVERAGE%"
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echo "BASE_COV=$BASE_COVERAGE" >> $GITHUB_ENV
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echo "BASE_BRANCH=$(git rev-parse --abbrev-ref HEAD)" >> $GITHUB_ENV
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# Compare coverages
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- name: Compare coverage
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id: compare
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run: |
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DIFF=$(echo "$CURRENT_COV - $BASE_COV" | bc)
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echo "DIFF=$DIFF" >> $GITHUB_ENV
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echo "Current ($CURRENT_BRANCH)= $CURRENT_COV%"
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echo "Base ($BASE_BRANCH)= $BASE_COV%"
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if (( $(echo "$CURRENT_COV < $BASE_COV" | bc -l) )); then
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echo "❌ Coverage decreased by $DIFF%"
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echo "RESULT=0" >> $GITHUB_ENV
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else
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echo "✅ Coverage maintained or improved by $DIFF%"
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echo "RESULT=1" >> $GITHUB_ENV
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fi
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# Comment on PR
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- name: Post PR comment
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uses: thollander/actions-comment-pull-request@v3
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with:
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message: |
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Code Coverage Report
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**Current (${{ env.CURRENT_BRANCH }}):** ${{ env.CURRENT_COV }}%
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**Base (${{ env.BASE_BRANCH }}):** ${{ env.BASE_COV }}%
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**Difference (current – base):** ${{ env.DIFF }}%
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**Result:** ✅ Code coverage has improved or is the same.
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<details>
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<summary>Per-file coverage (only .rb files)</summary>
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${{ env.TABLE }}
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</details>

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