Add simple GitHub action for static checks and tests

Enabled android lint, added detekt and created github workflow for PRs.
Related to discussion: https://github.com/orgs/FossifyOrg/discussions/83

.github/workflows/pr.yml

@@ -0,0 +1,26 @@
+name: PR
+
+on:
+    pull_request: [ main ]
+
+jobs:
+    android-lint:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: Run Android lint
+              run: ./gradlew lint
+
+    detekt:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: Run detekt checks
+              run: ./gradlew detekt
+
+    test:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v2
+            - name: Run tests
+              run: ./gradlew :app:testCoreDebugUnitTest

app/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
     alias(libs.plugins.android)
     alias(libs.plugins.kotlinAndroid)
     alias(libs.plugins.ksp)
+    alias(libs.plugins.detekt)
     base
 }
 
@@ -90,7 +91,8 @@ android {
 
     lint {
         checkReleaseBuilds = false
-        abortOnError = false
+        abortOnError = true
+        warningsAsErrors = true
     }
 }
 

build.gradle.kts

@@ -2,4 +2,5 @@ plugins {
     alias(libs.plugins.android).apply(false)
     alias(libs.plugins.kotlinAndroid).apply(false)
     alias(libs.plugins.ksp).apply(false)
+    alias(libs.plugins.detekt).apply(false)
 }

gradle/libs.versions.toml

@@ -3,6 +3,8 @@
 kotlin = "1.9.0"
 #KSP
 ksp = "1.9.0-1.0.12"
+#Detekt
+detekt = "1.23.3"
 #Room
 room = "2.6.0-alpha02"
 #Simple tools
@@ -35,3 +37,4 @@ room = [
 android = { id = "com.android.application", version.ref = "gradlePlugins-agp" }
 kotlinAndroid = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
+detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }