Merge lcov reports for CI coverage reporting

Author: eriwen

.github/workflows/ci.yml

@@ -33,10 +33,16 @@ jobs:
         run: npm ci
       - name: Lint code
         run: npm run lint
-      - name: Coveralls
-        uses: coverallsapp/github-action@v1.1.0
-        with:
-          github-token: ${{ secrets.github_token }}
       - name: Run browser tests in Saucelabs
         run: npm run test-ci
         timeout-minutes: 5
+      - name: Install lcov
+        run: |
+          sudo apt update
+          sudo apt install lcov
+      - name: Merge lcov reports
+        run: find coverage -name lcov.info -exec echo -a \"{}\" \; | xargs lcov -o coverage/lcov.info
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}

karma.conf.ci.js

@@ -101,7 +101,10 @@ module.exports = function(config) {
         },
         coverageReporter: {
             type: 'lcov',
-            dir: 'coverage'
+            dir: 'coverage',
+            subdir: function(browser) {
+                return browser.toLowerCase().split(/[ /-]/)[0];
+            }
         },
         singleRun: true
     });

karma.conf.js

@@ -9,18 +9,28 @@ module.exports = function(config) {
             'spec/spec-helper.js',
             'spec/*-spec.js'
         ],
-        reporters: ['spec'],
         port: 9876,
         colors: true,
         logLevel: config.LOG_INFO,
         autoWatch: true,
         customLaunchers: {
-            Chrome_Travis: {
+            Chrome_No_Sandbox: {
                 base: 'Chrome',
                 flags: ['--no-sandbox']
             }
         },
         browsers: ['PhantomJS'],
+        reporters: ['spec', 'saucelabs', 'coverage', 'coveralls'],
+        preprocessors: {
+            'error-stack-parser.js': 'coverage'
+        },
+        coverageReporter: {
+            type: 'lcov',
+            dir: 'coverage',
+            subdir: function(browser) {
+                return browser.toLowerCase().split(/[ /-]/)[0];
+            }
+        },
         singleRun: false
     });
 };

package.json

@@ -56,7 +56,7 @@
   "scripts": {
     "lint": "eslint --fix .",
     "test": "karma start karma.conf.js --single-run",
-    "test-pr": "karma start karma.conf.js --single-run --browsers Firefox,Chrome_Travis",
+    "test-pr": "karma start karma.conf.js --single-run --browsers Firefox,Chrome_No_Sandbox",
     "test-ci": "karma start karma.conf.ci.js --single-run",
     "prepare": "cp error-stack-parser.js dist/ && uglifyjs node_modules/stackframe/stackframe.js error-stack-parser.js -o dist/error-stack-parser.min.js --compress --mangle --source-map \"url=error-stack-parser.min.js.map\""
   }