ci/coverage: Generate a badge

Author: bilelmoussaoui

.github/workflows/coverage.yml

@@ -136,6 +136,19 @@ jobs:
           mkdir -p coverage-baseline
           echo "$CURRENT_COVERAGE" > coverage-baseline/main-coverage.txt
 
+          # Generate coverage badge
+          COVERAGE_INT=$(echo "$CURRENT_COVERAGE" | cut -d. -f1)
+          if [ "$COVERAGE_INT" -ge 80 ]; then
+            COLOR="brightgreen"
+          elif [ "$COVERAGE_INT" -ge 60 ]; then
+            COLOR="yellow"
+          else
+            COLOR="red"
+          fi
+
+          # Create badge SVG using shields.io format
+          curl -s "https://img.shields.io/badge/coverage-${CURRENT_COVERAGE}%25-${COLOR}" > site/coverage/badge.svg
+
       - name: Upload baseline coverage
         if: github.ref == 'refs/heads/main' && github.event_name == 'push'
         uses: actions/upload-artifact@v4

README.md

@@ -1,6 +1,6 @@
 # OO7
 
-[![docs](https://docs.rs/oo7/badge.svg)](https://docs.rs/oo7/) [![crates.io](https://img.shields.io/crates/v/oo7)](https://crates.io/crates/oo7) ![CI](https://github.com/bilelmoussaoui/oo7/workflows/CI/badge.svg)
+[![docs](https://docs.rs/oo7/badge.svg)](https://docs.rs/oo7/) [![crates.io](https://img.shields.io/crates/v/oo7)](https://crates.io/crates/oo7) ![CI](https://github.com/bilelmoussaoui/oo7/workflows/CI/badge.svg) [![Coverage](https://bilelmoussaoui.github.io/oo7/coverage/badge.svg)](https://bilelmoussaoui.github.io/oo7/coverage/)
 
 James Bond went on a new mission and this time as a [Secret Service provider](https://specifications.freedesktop.org/secret-service-spec/latest/).