Migrate from Coveralls to Codecov.io

Coveralls has poor support for Kotlin source code.
Codecov does better job here.

.github/workflows/main.yaml

@@ -20,10 +20,11 @@ jobs:
       run: |
         echo '${{ secrets.FIREBASE_APP_DISTRIBUTION_SERVICE_ACCOUNT_JSON }}' > $RUNNER_TEMP/credentials.json
         export FIREBASE_APP_DISTRIBUTION_SERVICE_ACCOUNT_JSON=$RUNNER_TEMP/credentials.json && ./gradlew appDistributionUploadDebug
-    - name: Publish Code Coverage
-      env:
-        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
-      run: "./gradlew coveralls"
+    - name: Upload coverage reports to Codecov
+      uses: codecov/[email protected]
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        slug: vgaidarji/ci-matters
   androidTest:
     runs-on: ubuntu-latest
     strategy:

README.md

@@ -101,8 +101,8 @@ Distribute the build using following command:
 
 ------
 
-### Coveralls
+### Codecov.io
 
-[![Coverage Status](https://coveralls.io/repos/github/vgaidarji/ci-matters/badge.svg)](https://coveralls.io/github/vgaidarji/ci-matters)
+[![codecov](https://codecov.io/gh/vgaidarji/ci-matters/graph/badge.svg?token=ubhWNTji7m)](https://codecov.io/gh/vgaidarji/ci-matters)
 
-`Coveralls` provides test coverage information. `COVERALLS_REPO_TOKEN` environment variable should be exported on the build machine.
+`Codecov.io` provides test coverage information. `CODECOV_TOKEN` environment variable should be exported on the build machine.

app/build.gradle

@@ -5,7 +5,6 @@ apply plugin: 'com.google.firebase.appdistribution'
 apply plugin: 'com.google.firebase.crashlytics'
 apply from: 'config/quality.gradle'
 apply from: 'config/jacoco.gradle'
-apply from: 'config/coveralls.gradle'
 
 def versionMajor = 1
 def versionMinor = 0