From d4e512aabec4dbc8279e9260f0ee9bcbf946a2ef Mon Sep 17 00:00:00 2001
From: iusmac <iusico.maxim@libero.it>
Date: Sat, 31 Aug 2024 11:12:40 +0200
Subject: [PATCH] ci: generate code coverage summary using `Kover`

Signed-off-by: iusmac <iusico.maxim@libero.it>
---
 .github/actions/android-build/action.yml  | 24 +++++++++++++++-
 .github/scripts/post-build-with-gradle.sh |  1 +
 build.gradle                              | 34 +++++++++++++++++++++++
 3 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/.github/actions/android-build/action.yml b/.github/actions/android-build/action.yml
index a4212a4..5d9f75c 100644
--- a/.github/actions/android-build/action.yml
+++ b/.github/actions/android-build/action.yml
@@ -42,7 +42,29 @@ runs:
           ${{ inputs.exclude-ci-info == 'false' && format('CI (N. {0} ID {1} from: {2})',
             github.run_number, github.run_id, github.head_ref || github.ref_name) || '' }}
         RELEASE_DEBUG_OPT: ${{ inputs.release-debug-opt }}
-      run: ./gradlew --parallel ${{ inputs.check-build == 'true' && 'build' || 'assemble' }}
+      run: |
+        ./gradlew --parallel \
+        ${{ inputs.check-build == 'true' && 'build koverHtmlReportDebug koverXmlReportDebug' || 'assemble' }}
+    - name: Generate code coverage summary
+      if: inputs.check-build == 'true'
+      id: coverage
+      uses: PavanMudigonda/jacoco-reporter@v5.0
+      with:
+        coverage_results_path: build/reports/kover/reportDebug.xml
+        github_token: ${{ github.token }}
+        skip_check_run: true
+        minimum_coverage: 80
+        fail_below_threshold: false
+    - name: Add coverage report to workflow run summary
+      shell: bash
+      run: |
+        echo "## Coverage (Kover)" >> $GITHUB_STEP_SUMMARY
+        echo "| Outcome | Value |" >> $GITHUB_STEP_SUMMARY
+        echo "| --- | --- |" >> $GITHUB_STEP_SUMMARY
+        echo "| Code Coverage % | ${{ steps.coverage.outputs.coverage_percentage }} |" >> $GITHUB_STEP_SUMMARY
+        echo "| :heavy_check_mark: Number of Lines Covered | ${{ steps.coverage.outputs.covered_lines }} |" >> $GITHUB_STEP_SUMMARY
+        echo "| :x: Number of Lines Missed | ${{ steps.coverage.outputs.missed_lines }} |" >> $GITHUB_STEP_SUMMARY
+        echo "| Total Number of Lines | ${{ steps.coverage.outputs.total_lines }} |" >> $GITHUB_STEP_SUMMARY
     - name: Post Build with Gradle
       shell: bash
       run: ./.github/scripts/post-build-with-gradle.sh
diff --git a/.github/scripts/post-build-with-gradle.sh b/.github/scripts/post-build-with-gradle.sh
index 436e034..10a3b79 100755
--- a/.github/scripts/post-build-with-gradle.sh
+++ b/.github/scripts/post-build-with-gradle.sh
@@ -15,6 +15,7 @@ mkdir -vp "$artifacts_dir"
 
 # Move artifacts into a dedicated directory
 mv -v build/outputs/apk/{debug,release}/*.apk "$artifacts_dir"
+mv -v build/reports/kover/htmlDebug/ "$artifacts_dir/koverDebug" || true
 mv -v build/reports/lint-results-debug.html "$artifacts_dir" || true
 
 # NOTE: MD5/SHA256sum commands output as '<hash> <path/to/file>', so we should
diff --git a/build.gradle b/build.gradle
index 4fabacf..9d5e75f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -64,6 +64,8 @@ plugins {
     id 'org.jetbrains.kotlin.android' version '1.9.22' apply false
     // https://mvnrepository.com/artifact/net.ltgt.errorprone/net.ltgt.errorprone.gradle.plugin
     id 'net.ltgt.errorprone' version '4.0.1' apply false
+    // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kover-gradle-plugin
+    id 'org.jetbrains.kotlinx.kover' version '0.8.3' apply false
 }
 
 allprojects {
@@ -101,6 +103,7 @@ apply plugin: 'com.android.application'
 apply plugin: 'org.jetbrains.kotlin.android'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'net.ltgt.errorprone'
+apply plugin: 'org.jetbrains.kotlinx.kover'
 
 final def versionNameCommon = [file('version.txt').text.trim()]
 if (System.getenv('EXTRA_VERSION_BUILD_INFO') == null) {
@@ -233,6 +236,37 @@ kapt {
     correctErrorTypes true
 }
 
+kover {
+    reports {
+        filters {
+            excludes {
+                // excludes class by fully-qualified JVM class name, wildcards
+                // '*' and '?' are available
+                classes(
+                    '*BuildConfig',
+                    // '*\$Factory',
+                    '*.Hilt_*',
+                    '*_ComponentTreeDeps',
+                    '*_HiltComponents*',
+                    '*_Impl',
+                    '*_Impl\$*',
+               )
+                // excludes all classes located in specified package and it
+                // subpackages, wildcards '*' and '?' are available
+                packages(
+                    'com.github.iusmac.sevensim.inject',
+                    'hilt_aggregated_deps',
+                    'dagger.hilt.internal.*',
+                )
+                // excludes all classes and functions, annotated by specified
+                // annotations, wildcards '*' and '?' are available
+                annotatedBy('*Generated*')
+                annotatedBy('*AssistedFactory')
+            }
+        }
+    }
+}
+
 /**
  * Describe the tag relative to a commit-ish using "git describe".
  *