build: migrate to version catalog with convention plugins

Replace buildSrc Dependencies.kt with gradle/libs.versions.toml and introduce a build-logic included build with three convention plugins:

- flipcash.android.library: base Android library config (serialization, timber, coroutines)
- flipcash.android.library.compose: adds Compose compiler/BOM/ui/foundation
- flipcash.android.feature: adds Hilt, KSP, parcelize, Compose bundle, and common project dependencies (core, logging, UI stack)

Commonizes repeated dependencies across 114 modules, removing ~5,000 lines of boilerplate. Converts settings.gradle to settings.gradle.kts.

Signed-off-by: Brandon McAnsh <git@bmcreations.dev>

Author: bmc08gt

.gitignore

@@ -19,3 +19,4 @@ apps/flipcash/app/dapp_publishing/.asset-manifest.json
 ## Fastlane
 fastlane/report.xml
 *.env.*
+.claude/

apps/codeApp/build.gradle.kts

@@ -215,4 +215,4 @@ dependencies {
     implementation(Libs.bugsnag)
 
     implementation(Libs.haze)
-}
+}

apps/flipcash/app/build.gradle.kts

@@ -4,20 +4,20 @@ import com.google.firebase.crashlytics.buildtools.gradle.CrashlyticsExtension
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 
 plugins {
-    id(Plugins.android_application)
-    id(Plugins.kotlin_android)
-    id(Plugins.kotlin_parcelize)
-    id(Plugins.kotlin_ksp)
-    id(Plugins.kotlin_serialization)
-    id(Plugins.androidx_navigation_safeargs)
-    id(Plugins.hilt)
-    id(Plugins.google_services)
-    id(Plugins.firebase_crashlytics)
-    id(Plugins.firebase_perf)
-    id(Plugins.bugsnag_gradle)
-    id(Plugins.secrets_gradle_plugin)
-    id(Plugins.versioning_gradle_plugin)
-    id(Plugins.jetbrains_compose_compiler)
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    id("org.jetbrains.kotlin.plugin.parcelize")
+    id("com.google.devtools.ksp")
+    id("org.jetbrains.kotlin.plugin.serialization")
+    alias(libs.plugins.navigation.safeargs)
+    id("dagger.hilt.android.plugin")
+    alias(libs.plugins.google.services)
+    alias(libs.plugins.firebase.crashlytics)
+    alias(libs.plugins.firebase.perf)
+    alias(libs.plugins.bugsnag.gradle)
+    alias(libs.plugins.secrets)
+    alias(libs.plugins.versioning)
+    id("org.jetbrains.kotlin.plugin.compose")
 }
 
 val contributorsSigningConfig = ContributorsSignatory(rootProject)
@@ -91,15 +91,13 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility(Versions.java)
-        targetCompatibility(Versions.java)
+        sourceCompatibility(Android.javaVersion)
+        targetCompatibility(Android.javaVersion)
         isCoreLibraryDesugaringEnabled = true
     }
 
     packaging {
-        resources.excludes.add("**/*.proto")
-        resources.excludes.add("META-INF/LICENSE.md")
-        resources.excludes.add("META-INF/LICENSE-notice.md")
+        resources.excludes += setOf("**/*.proto", "META-INF/LICENSE.md", "META-INF/LICENSE-notice.md")
     }
 }
 
@@ -121,11 +119,11 @@ bugsnag {
 
 kotlin {
     jvmToolchain {
-        languageVersion.set(JavaLanguageVersion.of(Versions.java))
+        languageVersion.set(JavaLanguageVersion.of(Android.javaVersion))
     }
 
     compilerOptions {
-        jvmTarget.set(JvmTarget.fromTarget(Versions.java))
+        jvmTarget.set(JvmTarget.fromTarget(Android.javaVersion))
         optIn.addAll(
             "kotlin.time.ExperimentalTime",
             "kotlin.ExperimentalUnsignedTypes",
@@ -200,66 +198,66 @@ dependencies {
     implementation(project(":ui:resources"))
     implementation(project(":ui:theme"))
 
-    coreLibraryDesugaring(Libs.android_desugaring)
+    coreLibraryDesugaring(libs.android.desugaring)
 
     //standard libraries
-    implementation(Libs.kotlinx_collections_immutable)
-    implementation(Libs.kotlinx_serialization_json)
-    implementation(Libs.androidx_core)
-    implementation(Libs.androidx_lifecycle_runtime)
-    implementation(Libs.androidx_lifecycle_viewmodel)
-    implementation(Libs.androidx_navigation_ui)
-    implementation(Libs.androidx_work)
+    implementation(libs.kotlinx.collections.immutable)
+    implementation(libs.kotlinx.serialization.json)
+    implementation(libs.androidx.core)
+    implementation(libs.androidx.lifecycle.runtime)
+    implementation(libs.androidx.lifecycle.viewmodel)
+    implementation(libs.androidx.navigation.ui)
+    implementation(libs.androidx.work)
     implementation("androidx.webkit:webkit:1.14.0")
 
     //hilt dependency injection
-    implementation(Libs.hilt)
-    implementation(Libs.hilt_worker)
-    ksp(Libs.hilt_android_compiler)
-    ksp(Libs.hilt_compiler)
+    implementation(libs.hilt.android)
+    implementation(libs.hilt.worker)
+    ksp(libs.hilt.android.compiler)
+    ksp(libs.hilt.compiler)
 
-    androidTestImplementation(Libs.hilt)
-    androidTestImplementation(Libs.hilt_android_test)
-    kspAndroidTest(Libs.hilt_android_compiler)
-    testImplementation(Libs.hilt_android_test)
-    kspTest(Libs.hilt_android_compiler)
+    androidTestImplementation(libs.hilt.android)
+    androidTestImplementation(libs.hilt.android.test)
+    kspAndroidTest(libs.hilt.android.compiler)
+    testImplementation(libs.hilt.android.test)
+    kspTest(libs.hilt.android.compiler)
 
     androidTestImplementation("io.mockk:mockk:1.14.6")
 
     //Jetpack compose
-    implementation(platform(Libs.compose_bom))
-    implementation(Libs.compose_ui)
-    debugImplementation(Libs.compose_ui_tools)
-    implementation(Libs.compose_accompanist)
-    implementation(Libs.compose_foundation)
-    implementation(Libs.compose_material)
-    implementation(Libs.compose_materialIconsExtended)
-    implementation(Libs.compose_activities)
-    implementation(Libs.compose_view_models)
-
-    implementation(Libs.androidx_activity)
-
-    implementation(Libs.androidx_browser)
-
-    implementation(Libs.slf4j)
-    implementation(Libs.grpc_android)
-
-    implementation(platform(Libs.firebase_bom))
-    implementation(Libs.firebase_analytics)
-    implementation(Libs.firebase_crashlytics)
-    implementation(Libs.firebase_messaging)
-
-    implementation(Libs.mixpanel)
-
-    androidTestImplementation(Libs.androidx_test_runner)
-    androidTestImplementation(Libs.androidx_junit)
-    androidTestImplementation(Libs.junit)
-    androidTestImplementation(Libs.espresso_core)
-    androidTestImplementation(Libs.espresso_contrib) {
+    implementation(platform(libs.compose.bom))
+    implementation(libs.compose.ui)
+    debugImplementation(libs.compose.ui.tools)
+    implementation(libs.compose.accompanist)
+    implementation(libs.compose.foundation)
+    implementation(libs.compose.material)
+    implementation(libs.compose.material.icons.extended)
+    implementation(libs.compose.activities)
+    implementation(libs.compose.view.models)
+
+    implementation(libs.androidx.activity)
+
+    implementation(libs.androidx.browser)
+
+    implementation(libs.slf4j)
+    implementation(libs.grpc.android)
+
+    implementation(platform(libs.firebase.bom))
+    implementation(libs.firebase.analytics)
+    implementation(libs.firebase.crashlytics)
+    implementation(libs.firebase.messaging)
+
+    implementation(libs.mixpanel)
+
+    androidTestImplementation(libs.androidx.test.runner)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.junit)
+    androidTestImplementation(libs.espresso.core)
+    androidTestImplementation(libs.espresso.contrib) {
         exclude(module = "protobuf-lite")
     }
-    androidTestImplementation(Libs.espresso_intents)
+    androidTestImplementation(libs.espresso.intents)
 
-    implementation(Libs.timber)
-    implementation(Libs.bugsnag)
+    implementation(libs.timber)
+    implementation(libs.bugsnag)
 }

apps/flipcash/app/src/screenshotTest/kotlin/com/flipcash/app/login/LoginContentScreenshotTest.kt

@@ -0,0 +1,15 @@
+package com.flipcash.app.login
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.tooling.preview.Preview
+import com.android.tools.screenshot.PreviewTest
+import com.flipcash.app.theme.FlipcashPreview
+
+@PreviewTest
+@Preview
+@Composable
+fun LoginScreenPreview() {
+    FlipcashPreview {
+        LoginS
+    }
+}

apps/flipcash/core/build.gradle.kts

@@ -1,72 +1,28 @@
-import org.jetbrains.kotlin.gradle.dsl.JvmTarget
-
 plugins {
-    id(Plugins.android_library)
-    id(Plugins.kotlin_android)
-    id(Plugins.kotlin_ksp)
-    id(Plugins.kotlin_serialization)
-    id(Plugins.kotlin_parcelize)
-    id(Plugins.jetbrains_compose_compiler)
+    alias(libs.plugins.flipcash.android.feature)
 }
 
 android {
     namespace = "${Gradle.flipcashNamespace}.core"
-    compileSdk = Android.compileSdkVersion
-    defaultConfig {
-        minSdk = Android.minSdkVersion
-        testInstrumentationRunner = Android.testInstrumentationRunner
-    }
-
-    buildFeatures {
-        buildConfig = true
-        compose = true
-    }
-}
-
-kotlin {
-    jvmToolchain {
-        languageVersion.set(JavaLanguageVersion.of(Versions.java))
-    }
-
-    compilerOptions {
-        jvmTarget.set(JvmTarget.fromTarget(Versions.java))
-        optIn.addAll(
-            "kotlin.time.ExperimentalTime",
-            "kotlin.ExperimentalUnsignedTypes",
-            "kotlin.RequiresOptIn"
-        )
-    }
 }
 
 dependencies {
-    implementation(Libs.inject)
-    implementation(Libs.hilt)
-    ksp(Libs.hilt_android_compiler)
-    ksp(Libs.hilt_compiler)
-
-    implementation(Libs.timber)
+    implementation(libs.androidx.browser)
 
-    implementation(Libs.androidx_browser)
+    implementation(libs.kotlinx.serialization.core)
+    implementation(libs.kotlinx.serialization.json)
 
-    implementation(Libs.kotlinx_serialization_core)
-    implementation(Libs.kotlinx_serialization_json)
+    implementation(platform(libs.firebase.bom))
+    implementation(libs.firebase.messaging)
+    implementation(libs.bugsnag)
 
-    implementation(platform(Libs.compose_bom))
-    implementation(Libs.compose_ui)
-    implementation(Libs.compose_foundation)
-    implementation(Libs.compose_material)
+    implementation(libs.androidx.localbroadcastmanager)
+    implementation(libs.androidx.credentials)
+    implementation(libs.androidx.credentials.play.auth)
+    implementation(libs.androidx.datastore)
 
-    implementation(platform(Libs.firebase_bom))
-    implementation(Libs.firebase_messaging)
-    implementation(Libs.bugsnag)
-
-    implementation(Libs.androidx_localbroadcastmanager)
-    implementation(Libs.androidx_credentials)
-    implementation(Libs.androidx_credentials_play_auth)
-    implementation(Libs.androidx_datastore)
-
-    api(Libs.coil3)
-    api(Libs.coil3_network)
+    api(libs.coil3)
+    api(libs.coil3.network)
 
     api(project(":services:flipcash-compose"))
 
@@ -76,17 +32,11 @@ dependencies {
 
     api(project(":apps:flipcash:shared:theme"))
 
-    implementation(project(":ui:components"))
-    implementation(project(":ui:navigation"))
-    implementation(project(":ui:theme"))
-    implementation(Libs.rinku_compose)
-
-    api(Libs.sodium_bindings)
-
+    api(libs.sodium.bindings)
 
     api(project(":vendor:kik:scanner"))
 
     api(project(":ui:core"))
 
     api(project(":vendor:tipkit:tipkit-m2"))
-}
+}

apps/flipcash/features/advanced/build.gradle.kts

@@ -1,70 +1,17 @@
-import org.jetbrains.kotlin.gradle.dsl.JvmTarget
-
 plugins {
-    id(Plugins.android_library)
-    id(Plugins.kotlin_android)
-    id(Plugins.kotlin_ksp)
-    id(Plugins.hilt)
-    id(Plugins.kotlin_parcelize)
-    id(Plugins.jetbrains_compose_compiler)
+    alias(libs.plugins.flipcash.android.feature)
 }
 
 android {
     namespace = "${Gradle.flipcashNamespace}.features.advanced"
-    compileSdk = Android.compileSdkVersion
-    defaultConfig {
-        minSdk = Android.minSdkVersion
-        testInstrumentationRunner = Android.testInstrumentationRunner
-    }
-
-    buildFeatures {
-        buildConfig = true
-        compose = true
-    }
-}
-
-kotlin {
-    jvmToolchain {
-        languageVersion.set(JavaLanguageVersion.of(Versions.java))
-    }
-
-    compilerOptions {
-        jvmTarget.set(JvmTarget.fromTarget(Versions.java))
-        optIn.addAll(
-            "kotlin.time.ExperimentalTime",
-            "kotlin.ExperimentalUnsignedTypes",
-            "kotlin.RequiresOptIn"
-        )
-    }
 }
 
 dependencies {
-    implementation(Libs.inject)
-    implementation(Libs.hilt)
-    ksp(Libs.hilt_android_compiler)
-    ksp(Libs.hilt_compiler)
-
-    implementation(Libs.timber)
-
-    implementation(platform(Libs.compose_bom))
-    implementation(Libs.compose_ui)
-    implementation(Libs.compose_foundation)
-    implementation(Libs.compose_material)
-    implementation(Libs.compose_materialIconsExtended)
-
     implementation(project(":apps:flipcash:shared:bill-customization"))
     implementation(project(":apps:flipcash:shared:featureflags"))
     implementation(project(":apps:flipcash:shared:menu"))
-    implementation(project(":apps:flipcash:core"))
 
     implementation(project(":libs:datetime"))
-    implementation(project(":libs:logging"))
     implementation(project(":libs:messaging"))
     implementation(project(":libs:permissions:bindings"))
-    implementation(project(":ui:core"))
-    implementation(project(":ui:components"))
-    implementation(project(":ui:navigation"))
-    implementation(project(":ui:resources"))
-    implementation(project(":ui:theme"))
-    implementation(Libs.rinku_compose)
-}
+}