chore: Enhance CI coverage reporting and add main branch workflow (#4873)

.github/workflows/main-check.yml

@@ -0,0 +1,24 @@
+name: Main CI (Verify & Build)
+
+on:
+  push:
+    branches: [ main ]
+    paths-ignore:
+      - '**/*.md'
+      - 'docs/**'
+
+concurrency:
+  group: main-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  validate-and-build:
+    if: github.repository == 'meshtastic/Meshtastic-Android'
+    uses: ./.github/workflows/reusable-check.yml
+    with:
+      run_lint: true
+      run_unit_tests: true
+      run_instrumented_tests: true
+      api_levels: '[35]' # One API level is enough for post-merge sanity check
+      upload_artifacts: true
+    secrets: inherit

.github/workflows/reusable-check.yml

@@ -89,7 +89,7 @@ jobs:
 
       - name: Shared Unit Tests & Coverage
         if: inputs.run_unit_tests == true
-        run: ./gradlew test koverXmlReport app:koverXmlReportFdroidDebug app:koverXmlReportGoogleDebug core:api:koverXmlReportDebug core:barcode:koverXmlReportFdroidDebug core:barcode:koverXmlReportGoogleDebug mesh_service_example:koverXmlReportDebug -Pci=true --continue --scan
+        run: ./gradlew test koverXmlReport app:koverXmlReportFdroidDebug app:koverXmlReportGoogleDebug core:api:koverXmlReportDebug core:barcode:koverXmlReportFdroidDebug core:barcode:koverXmlReportGoogleDebug mesh_service_example:koverXmlReportDebug desktop:koverXmlReport -Pci=true --continue --scan
 
       - name: KMP JVM Smoke Compile
         run: ./gradlew :core:proto:compileKotlinJvm :core:common:compileKotlinJvm :core:model:compileKotlinJvm :core:repository:compileKotlinJvm :core:di:compileKotlinJvm :core:navigation:compileKotlinJvm :core:resources:compileKotlinJvm :core:datastore:compileKotlinJvm :core:database:compileKotlinJvm :core:domain:compileKotlinJvm :core:prefs:compileKotlinJvm :core:network:compileKotlinJvm :core:data:compileKotlinJvm :core:ble:compileKotlinJvm :core:nfc:compileKotlinJvm :core:service:compileKotlinJvm :core:testing:compileKotlinJvm :core:ui:compileKotlinJvm :feature:intro:compileKotlinJvm :feature:messaging:compileKotlinJvm :feature:connections:compileKotlinJvm :feature:map:compileKotlinJvm :feature:node:compileKotlinJvm :feature:settings:compileKotlinJvm :feature:firmware:compileKotlinJvm -Pci=true --continue --scan

codecov.yml

@@ -1,3 +1,71 @@
+# Codecov configuration for Meshtastic Android
+# Ref: https://docs.codecov.com/docs/codecovyml-reference
+
+codecov:
+  branch: main
+
 coverage:
+  precision: 2
+  round: down
+  range: "70...100"
   status:
-    patch: off
+    project:
+      default:
+        target: auto      # Coverage should not decrease from base branch
+        threshold: 1%     # Allow 1% drop to reduce noise
+    patch:
+      default:
+        target: auto      # New code should have coverage similar to project average
+        threshold: 1%
+        base: auto
+
+comment:
+  layout: "reach,diff,flags,files"
+  behavior: default
+  require_changes: false  # Post a comment even if coverage doesn't change
+
+flags:
+  host-unit:
+    paths:
+      - .
+    carryforward: true
+  android-instrumented:
+    paths:
+      - .
+    carryforward: true
+
+component_management:
+  default_rules:
+    statuses:
+      - type: project
+        target: auto
+        threshold: 1%
+  individual_components:
+    - name: Core
+      paths:
+        - core/**
+    - name: Features
+      paths:
+        - feature/**
+    - name: App
+      paths:
+        - app/**
+    - name: Desktop
+      paths:
+        - desktop/**
+    - name: Example
+      paths:
+        - mesh_service_example/**
+
+ignore:
+  - "**/build/**"
+  - "**/*.pb.kt"          # Generated Protobuf code
+  - "**/*.aidl"           # AIDL interface files
+  - "**/aidl/**"           # Generated AIDL code
+  - "core/resources/**"   # Centralized resources
+  - "**/test/**"          # Unit tests
+  - "**/androidTest/**"   # Instrumented tests
+  - "**/*Test.kt"         # Test files
+  - "**/*Mock.kt"         # Fakes/Mocks
+  - "**/*Fake.kt"         # Fakes
+  - "**/testing/**"       # Shared test utilities

desktop/build.gradle.kts

@@ -28,6 +28,7 @@ plugins {
     alias(libs.plugins.meshtastic.detekt)
     alias(libs.plugins.meshtastic.spotless)
     alias(libs.plugins.meshtastic.koin)
+    id("meshtastic.kover")
     alias(libs.plugins.aboutlibraries)
 }
 

docs/agent-playbooks/testing-and-ci-playbook.md

@@ -56,7 +56,7 @@ Current reusable check workflow includes:
 - Android lint for all directly runnable Android modules:
   `app:lintFdroidDebug app:lintGoogleDebug core:barcode:lintFdroidDebug core:barcode:lintGoogleDebug core:api:lintDebug mesh_service_example:lintDebug`
 - Host tests plus coverage aggregation:
-  `test koverXmlReport app:koverXmlReportFdroidDebug app:koverXmlReportGoogleDebug core:api:koverXmlReportDebug core:barcode:koverXmlReportFdroidDebug core:barcode:koverXmlReportGoogleDebug mesh_service_example:koverXmlReportDebug`
+  `test koverXmlReport app:koverXmlReportFdroidDebug app:koverXmlReportGoogleDebug core:api:koverXmlReportDebug core:barcode:koverXmlReportFdroidDebug core:barcode:koverXmlReportGoogleDebug mesh_service_example:koverXmlReportDebug desktop:koverXmlReport`
 - JVM smoke compile for all KMP JVM targets (all compile-only modules remain explicit):
   `:core:proto:compileKotlinJvm :core:common:compileKotlinJvm :core:model:compileKotlinJvm :core:repository:compileKotlinJvm :core:di:compileKotlinJvm :core:navigation:compileKotlinJvm :core:resources:compileKotlinJvm :core:datastore:compileKotlinJvm :core:database:compileKotlinJvm :core:domain:compileKotlinJvm :core:prefs:compileKotlinJvm :core:network:compileKotlinJvm :core:data:compileKotlinJvm :core:ble:compileKotlinJvm :core:nfc:compileKotlinJvm :core:service:compileKotlinJvm :core:testing:compileKotlinJvm :core:ui:compileKotlinJvm :feature:intro:compileKotlinJvm :feature:messaging:compileKotlinJvm :feature:connections:compileKotlinJvm :feature:map:compileKotlinJvm :feature:node:compileKotlinJvm :feature:settings:compileKotlinJvm :feature:firmware:compileKotlinJvm`
 - Android build tasks: