add: adding support for code coverage

.gitignore

@@ -5,6 +5,10 @@
 .packages
 build/
 
+# Coverage files
+coverage/
+coverage_report/
+
 # Files and directories created by developer
 spike/
 devbox.d/

.melos/coverage.yaml

@@ -0,0 +1,17 @@
+scripts:
+  _: &coverage_scripts
+    coverage:
+      run: >
+        melos exec -c 1 --fail-fast -- "dart pub add --dev coverage && dart test --coverage=coverage && dart pub global activate coverage && dart pub global run coverage:format_coverage -l --packages=.dart_tool/package_config.json --report-on=lib/ -i coverage -o coverage/lcov.info && dart pub remove coverage"
+      description: Run tests with coverage and generate LCOV report for each package
+    coverage_report:
+      run: >
+        melos exec -c 1 --fail-fast -- "
+        if [ -s coverage/lcov.info ]; then
+          genhtml -o coverage_report coverage/lcov.info;
+          echo 'Coverage report generated successfully.';
+        else
+          echo 'No valid coverage data found. Skipping report generation.';
+        fi
+        "
+      description: Generate HTML coverage report from LCOV data for each package, if valid data exists

melos.yaml

@@ -62,6 +62,12 @@ scripts:
   docs:serve:custom:
     run: "melos exec --scope=\"$MELOS_SCOPE\" -- \"echo 'Serving docs for {MELOS_PACKAGE_NAME}' && dhttpd --path doc --port \\${DOC_PORT:-8080}\"\n"
     description: Serve generated documentation for specified packages (use with MELOS_SCOPE and optionally DOC_PORT env vars)
+  coverage:
+    run: "melos exec -c 1 --fail-fast -- \"dart pub add --dev coverage && dart test --coverage=coverage && dart pub global activate coverage && dart pub global run coverage:format_coverage -l --packages=.dart_tool\/package_config.json --report-on=lib\/ -i coverage -o coverage\/lcov.info && dart pub remove coverage\"\n"
+    description: Run tests with coverage and generate LCOV report for each package
+  coverage_report:
+    run: "melos exec -c 1 --fail-fast -- \" if [ -s coverage\/lcov.info ]; then\n  genhtml -o coverage_report coverage\/lcov.info;\n  echo 'Coverage report generated successfully.';\nelse\n  echo 'No valid coverage data found. Skipping report generation.';\nfi \"\n"
+    description: "Generate HTML coverage report from LCOV data for each package, if valid data exists"
   test:
     run: melos exec -c 1 --fail-fast -- "dart test"
     description: Run tests for all packages

packages/container/container/pubspec.yaml

@@ -11,4 +11,4 @@ dependencies:
   quiver: ^3.2.0
 dev_dependencies:
   test: ^1.24.0
-  lints: ^4.0.0
+  lints: ^4.0.0