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Vitor PamplonaandClaude Opus 5.5
ff4443ee31
Since K2, Kotlin rebuilds a whole multiplatform module whenever an
incremental compile touches a file in a shared source set (commonMain,
jvmAndroid): the guard for KT-62686 ("Incremental compilation might be
incorrect"), still present in 2.5.0-Beta1. Nearly all of :commons and
:commonsUI is shared, and :commons doubled to ~200k lines in three
weeks, so every edit paid a full rebuild.
Measured on a one-line change in :commons commonMain, :amethyst:
assemblePlayDebug, M-series Mac:
- body or comment change: 38.6 s -> 9.5 s (:commons 31 s -> 2.7 s)
- new public declaration: 161 s -> 25.7 s (commons, commonsUI and the
app no longer all rebuild in full)
The guard covers common code resolving a platform declaration that
shadows a dependency's class of the same name, which can give a wrong
incremental result locally; a clean build fixes it. CI and release
builds start clean, so they are unaffected.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
51 lines
3.0 KiB
Properties
51 lines
3.0 KiB
Properties
# Project-wide Gradle settings.
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# IDE (e.g. Android Studio) users:
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# Gradle settings configured through the IDE *will override*
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# any settings specified in this file.
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# For more details on how to configure your build environment visit
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# http://www.gradle.org/docs/current/userguide/build_environment.html
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# Specifies the JVM arguments used for the daemon process.
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# The setting is particularly useful for tweaking memory settings.
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org.gradle.jvmargs=-Xmx6g -Dfile.encoding=UTF-8
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# When configured, Gradle will run in incubating parallel mode.
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# This option should only be used with decoupled projects. More details, visit
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# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
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org.gradle.parallel=true
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org.gradle.caching=true
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# AndroidX package structure to make it clearer which packages are bundled with the
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# Android operating system, and which are packaged with your app's APK
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# https://developer.android.com/topic/libraries/support-library/androidx-rn
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android.useAndroidX=true
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# Kotlin code style for this project: "official" or "obsolete":
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kotlin.code.style=official
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# Enables namespacing of each library's R class so that its R class includes only the
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# resources declared in the library itself and none from the library's dependencies,
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# thereby reducing the size of the R class for that library
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android.nonTransitiveRClass=true
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android.enableR8.fullMode=true
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kotlin.daemon.jvmargs=-Xmx8g -XX:MaxMetaspaceSize=2g
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# because we use a custom jvmAndroid target
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kotlin.mpp.applyDefaultHierarchyTemplate=false
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# This is needed for the Swift bridge to work.
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kotlin.mpp.enableCInteropCommonization=true
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# Incremental compilation for the KMP modules. Since K2, Kotlin rebuilds a whole KMP module
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# whenever a recompiled file sits in a shared source set (commonMain, jvmAndroid): the guard
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# for KT-62686, still in 2.5.0-Beta1. Nearly all of :commons and :commonsUI is shared, so every
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# edit paid a full rebuild: a body change in :commons took ~39 s, a new public declaration
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# ~161 s (commons, commonsUI and the app); with this, ~10 s and ~26 s. The risk the guard
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# covers is narrow: common code resolving a platform declaration that shadows a dependency's
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# class of the same name, which can give a wrong incremental result locally (a clean build
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# fixes it). CI and release builds start clean, so they are unaffected.
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kotlin.internal.incremental.enableUnsafeOptimizationsForMultiplatform=true
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# Enabled parallel sync for Gradle 9.4+
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org.gradle.tooling.parallel=true
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# Apple test tasks (iosSimulatorArm64Test, macosArm64Test) can only run on a Mac; on Linux and
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# Windows hosts KGP disables them and warned about it on every configuration. That is expected
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# here (CI runs them on macos-latest), so the warning carries no signal. Note the flag silences
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# every disabled-native-target notice, not only those: if a host ever loses the ability to
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# compile an Apple target, that is quiet too. CI's macOS jobs are where Apple code is verified.
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kotlin.native.ignoreDisabledTargets=true
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