build: append coverage NDJSON with SHA and timestamp

Author: Planeshifter

.github/workflows/run_tests_coverage.yml

@@ -246,6 +246,18 @@ jobs:
         run: |
             cp -R ./artifacts/* ./www-test-code-coverage
 
+            # Get commit SHA and timestamp:
+            commit_sha=$(git rev-parse HEAD)
+            commit_timestamp=$(git show -s --format=%ci $commit_sha)
+
+            # Append coverage to ndjson files:
+            files=$(find ./artifacts -name 'index.html')
+            for file in $files; do
+              sed -i 's/\/artifacts\//\/www-test-code-coverage\//g' $file
+              coverage=$(echo -n '['; grep -oP "(?<=class='fraction'>)[0-9]+/[0-9]+" $file | awk -F/ '{ print $1 "," $2 "," ($1/$2)*100 }' | tr '\n' ',' | sed 's/,$//'; echo -n ",\"$commit_sha\",\"$commit_timestamp\"]")
+              echo $coverage >> $(dirname $file)/coverage.ndjson
+            done
+
       # Commit and push changes:
       - name: 'Commit and push changes'
         env: