背景
项目接入 Flutter 后有两种方式,一种是 module 引入开发,一种是 aar 依赖开发。当前项目中在 Debug 阶段为了方便调试采用 module 开发,在发版时(即 Release 阶段)采用 aar 依赖引入。为了配合这种模式就需要在 release 阶段将 aar 上传至公司 maven 仓库中,但目前 Flutter 仅提供本地发布,所以下面基于官方脚本修改,实现上传至公司 maven。
打包脚本
修改自: Flutter 仓库中的 aar_init_script.gradle。路径 ->flutter/packages/flutter_tools/gradle/aar_init_script.gradle
groovy
import java.nio.file.Paths
import org.gradle.api.Project
import org.gradle.api.artifacts.Configuration
import org.gradle.api.publish.maven.MavenPublication
void configureProject(Project project, String outputDir) {
if (!project.hasProperty("android")) {
throw new GradleException("Android property not found.")
}
if (!project.android.hasProperty("libraryVariants")) {
throw new GradleException("Can't generate AAR on a non Android library project.");
}
project.version = project.version.replace("-SNAPSHOT", "")
if (project.hasProperty("buildNumber")) {
project.version = project.property("buildNumber")
}
project.components.forEach { component ->
if (component.name == "release") {
println ("component = " + component.name )
addAarTask(project, component)
}
}
project.publishing {
repositories {
// 在这里设置为自己的 maven 参考地址 !!!
maven {
url = uri("file://${outputDir}/outputs/repo")
}
}
}
if (!project.property("is-plugin").toBoolean()) {
return
}
String storageUrl = System.getenv('FLUTTER_STORAGE_BASE_URL') ?: "https://storage.googleapis.com"
project.repositories {
maven {
url "$storageUrl/download.flutter.io"
}
}
String engineVersion = Paths.get(getFlutterRoot(project), "bin", "internal", "engine.version")
.toFile().text.trim()
project.dependencies {
compileOnly ("io.flutter:flutter_embedding_release:1.0.0-$engineVersion") {
transitive = false
}
}
}
void configurePlugin(Project project, String outputDir) {
if (!project.hasProperty("android")) {
return
}
configureProject(project, outputDir)
}
void addAarTask(Project project, component) {
String variantName = component.name.capitalize()
String taskName = "assembleAar$variantName"
project.tasks.create(name: taskName) {
if (!project.gradle.startParameter.taskNames.contains(taskName)) {
return
}
project.publishing.publications.create(component.name, MavenPublication) { pub ->
groupId = "${pub.groupId}"
artifactId = "${pub.artifactId}_${pub.name}"
version = "${pub.version}"
from component
}
finalizedBy "publish"
}
}
allprojects {
apply plugin: "maven-publish"
}
projectsEvaluated {
Project moduleProject = rootProject.subprojects.find { it.name == "flutter" }
assert moduleProject != null
assert moduleProject.hasProperty("output-dir")
//打包dart代码
configureProject(moduleProject, moduleProject.property("output-dir"))
//打包三方依赖
Set<Project> modulePlugins = rootProject.subprojects.findAll {
it.name != "flutter" && it.name != "app"
}
modulePlugins.each { pluginProject ->
configurePlugin(pluginProject, moduleProject.property("output-dir"))
moduleProject.android.libraryVariants.all { variant ->
String variantName = variant.name.capitalize()
if (variantName == "release"){
println ("moduleProject = " + moduleProject.name + " & variantName = " + variantName + " & pluginProject = " + pluginProject.name)
Task moduleAssembleAarTask = moduleProject.tasks.findByPath("assembleAar$variantName")
Task pluginAssembleAarTask = pluginProject.tasks.findByPath("assembleAar$variantName")
if (moduleAssembleAarTask != null && pluginAssembleAarTask != null ){
moduleAssembleAarTask.dependsOn(pluginAssembleAarTask)
}
}
}
}
}
打包指令
shell
# 根据需要修改 "VERSION"(即 aar 版本号)
./gradlew -I="$PROJECT_PATH"/publishAar.gradle -Pflutter-root="${HOME}"/flutter -Poutput-dir="$PROJECT_PATH"/build/host -Pis-plugin=false -PbuildNumber="$VERSION" --full-stacktrace --info -Pverbose=true -Ptarget=lib/main.dart -Pdart-obfuscation=false -Ptrack-widget-creation=true -Ptree-shake-icons=false -Ptarget-platform=android-arm64 assembleAarRelease
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