| import java.nio.file.Path |
| import java.nio.file.Paths |
| |
| import com.android.builder.model.AndroidProject |
| import org.apache.tools.ant.taskdefs.condition.Os |
| import org.gradle.api.DefaultTask |
| import org.gradle.api.GradleException |
| import org.gradle.api.Project |
| import org.gradle.api.Plugin |
| import org.gradle.api.Task |
| import org.gradle.api.file.CopySpec |
| import org.gradle.api.file.FileCollection |
| import org.gradle.api.tasks.Copy |
| import org.gradle.api.tasks.InputFiles |
| import org.gradle.api.tasks.OutputDirectory |
| import org.gradle.api.tasks.TaskAction |
| import org.gradle.api.tasks.bundling.Jar |
| |
| buildscript { |
| repositories { |
| jcenter() |
| } |
| dependencies { |
| classpath 'com.android.tools.build:gradle:2.2.3' |
| } |
| } |
| |
| apply plugin: FlutterPlugin |
| |
| class FlutterPlugin implements Plugin<Project> { |
| private File flutterRoot |
| private File flutterExecutable |
| private String localEngine |
| private String localEngineSrcPath |
| private Properties localProperties |
| |
| private File flutterJar |
| private File debugFlutterJar |
| private File profileFlutterJar |
| private File releaseFlutterJar |
| |
| private Properties readPropertiesIfExist(File propertiesFile) { |
| Properties result = new Properties() |
| if (propertiesFile.exists()) { |
| propertiesFile.withInputStream { stream -> result.load(stream) } |
| } |
| return result |
| } |
| |
| private String resolveProperty(Project project, String name, String defaultValue) { |
| if (localProperties == null) { |
| localProperties = readPropertiesIfExist(project.rootProject.file("local.properties")) |
| } |
| String result |
| if (project.hasProperty(name)) { |
| result = project.property(name) |
| } |
| if (result == null) { |
| result = localProperties.getProperty(name) |
| } |
| if (result == null) { |
| result = defaultValue |
| } |
| return result |
| } |
| |
| @Override |
| void apply(Project project) { |
| // Add a 'profile' build type |
| project.android.buildTypes { |
| profile { |
| initWith debug |
| } |
| } |
| |
| String flutterRootPath = resolveProperty(project, "flutter.sdk", System.env.FLUTTER_ROOT) |
| if (flutterRootPath == null) { |
| throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file or with a FLUTTER_ROOT environment variable.") |
| } |
| flutterRoot = project.file(flutterRootPath) |
| if (!flutterRoot.isDirectory()) { |
| throw new GradleException("flutter.sdk must point to the Flutter SDK directory") |
| } |
| |
| String flutterExecutableName = Os.isFamily(Os.FAMILY_WINDOWS) ? "flutter.bat" : "flutter" |
| flutterExecutable = Paths.get(flutterRoot.absolutePath, "bin", flutterExecutableName).toFile(); |
| |
| if (project.hasProperty('localEngineOut')) { |
| String engineOutPath = project.property('localEngineOut') |
| File engineOut = project.file(engineOutPath) |
| if (!engineOut.isDirectory()) { |
| throw new GradleException('localEngineOut must point to a local engine build') |
| } |
| flutterJar = Paths.get(engineOut.absolutePath, "flutter.jar").toFile() |
| if (!flutterJar.isFile()) { |
| throw new GradleException('Local engine build does not contain flutter.jar') |
| } |
| |
| localEngine = engineOut.name |
| localEngineSrcPath = engineOut.parentFile.parent |
| |
| project.dependencies { |
| compile project.files(flutterJar) |
| } |
| } else { |
| Path baseEnginePath = Paths.get(flutterRoot.absolutePath, "bin", "cache", "artifacts", "engine") |
| debugFlutterJar = baseEnginePath.resolve("android-arm").resolve("flutter.jar").toFile() |
| profileFlutterJar = baseEnginePath.resolve("android-arm-profile").resolve("flutter.jar").toFile() |
| releaseFlutterJar = baseEnginePath.resolve("android-arm-release").resolve("flutter.jar").toFile() |
| if (!debugFlutterJar.isFile()) { |
| project.exec { |
| executable flutterExecutable.absolutePath |
| args "--suppress-analytics" |
| args "precache" |
| } |
| if (!debugFlutterJar.isFile()) { |
| throw new GradleException("Unable to find flutter.jar in SDK: ${debugFlutterJar}") |
| } |
| } |
| |
| // Add x86/x86_64 native library. Debug mode only, for now. |
| File flutterX86Jar = project.file("${project.buildDir}/${AndroidProject.FD_INTERMEDIATES}/flutter/flutter-x86.jar") |
| project.tasks.create("flutterBuildX86Jar", Jar) { |
| destinationDir flutterX86Jar.parentFile |
| archiveName flutterX86Jar.name |
| from("${flutterRoot}/bin/cache/artifacts/engine/android-x86/libflutter.so") { |
| into "lib/x86" |
| } |
| from("${flutterRoot}/bin/cache/artifacts/engine/android-x64/libflutter.so") { |
| into "lib/x86_64" |
| } |
| } |
| |
| project.dependencies { |
| debugCompile project.files(flutterX86Jar, debugFlutterJar) |
| profileCompile project.files(profileFlutterJar) |
| releaseCompile project.files(releaseFlutterJar) |
| } |
| } |
| |
| project.extensions.create("flutter", FlutterExtension) |
| project.afterEvaluate this.&addFlutterTask |
| |
| File pluginsFile = new File(project.rootProject.projectDir.parentFile, '.flutter-plugins') |
| Properties plugins = readPropertiesIfExist(pluginsFile) |
| |
| plugins.each { name, _ -> |
| def pluginProject = project.rootProject.findProject(":$name") |
| if (pluginProject != null) { |
| project.dependencies { |
| compile pluginProject |
| } |
| pluginProject.afterEvaluate this.&addFlutterJarDependency |
| } else { |
| project.logger.error("Plugin project :$name not found. Please update settings.gradle.") |
| } |
| } |
| } |
| |
| private void addFlutterJarDependency(Project project) { |
| project.dependencies { |
| if (flutterJar != null) { |
| provided project.files(flutterJar) |
| } else { |
| debugProvided project.files(debugFlutterJar) |
| releaseProvided project.files(releaseFlutterJar) |
| } |
| } |
| } |
| |
| private void addFlutterTask(Project project) { |
| if (project.flutter.source == null) { |
| throw new GradleException("Must provide Flutter source directory") |
| } |
| |
| String target = project.flutter.target |
| if (target == null) { |
| target = 'lib/main.dart' |
| } |
| if (project.hasProperty('target')) { |
| target = project.property('target') |
| } |
| |
| if (project.tasks.findByName('flutterBuildX86Jar')) { |
| project.compileDebugJavaWithJavac.dependsOn project.flutterBuildX86Jar |
| } |
| |
| File kernel |
| if (project.hasProperty('kernel')) { |
| kernel = project.file(project.property('kernel')) |
| } |
| |
| project.android.applicationVariants.all { variant -> |
| if (!["debug", "profile", "release"].contains(variant.name)) { |
| throw new GradleException("Build variant must be one of \"debug\", \"profile\", or \"release\" but was \"${variant.name}\"") |
| } |
| |
| GenerateDependencies dependenciesTask = project.tasks.create("flutterDependencies${variant.name.capitalize()}", GenerateDependencies) { |
| flutterRoot this.flutterRoot |
| flutterExecutable this.flutterExecutable |
| buildMode variant.name |
| localEngine this.localEngine |
| localEngineSrcPath this.localEngineSrcPath |
| targetPath target |
| kernelFile kernel |
| sourceDir project.file(project.flutter.source) |
| intermediateDir project.file("${project.buildDir}/${AndroidProject.FD_INTERMEDIATES}/flutter/${variant.name}") |
| } |
| |
| FlutterTask flutterTask = project.tasks.create("flutterBuild${variant.name.capitalize()}", FlutterTask) { |
| dependsOn dependenciesTask |
| flutterRoot this.flutterRoot |
| flutterExecutable this.flutterExecutable |
| buildMode variant.name |
| localEngine this.localEngine |
| localEngineSrcPath this.localEngineSrcPath |
| targetPath target |
| kernelFile kernel |
| sourceDir project.file(project.flutter.source) |
| intermediateDir project.file("${project.buildDir}/${AndroidProject.FD_INTERMEDIATES}/flutter/${variant.name}") |
| } |
| |
| Task copyFlxTask = project.tasks.create(name: "copyFlutterAssets${variant.name.capitalize()}", type: Copy) { |
| dependsOn flutterTask |
| dependsOn variant.mergeAssets |
| into variant.mergeAssets.outputDir |
| with flutterTask.assets |
| } |
| variant.outputs[0].processResources.dependsOn(copyFlxTask) |
| } |
| } |
| } |
| |
| class FlutterExtension { |
| String source |
| String target |
| } |
| |
| abstract class BaseFlutterTask extends DefaultTask { |
| File flutterRoot |
| File flutterExecutable |
| String buildMode |
| String localEngine |
| String localEngineSrcPath |
| @Input |
| String targetPath |
| @Optional @InputFile |
| File kernelFile |
| File sourceDir |
| File intermediateDir |
| |
| @OutputFile |
| File getDependenciesFile() { |
| if (buildMode != 'debug') { |
| return project.file("${intermediateDir}/snapshot.d") |
| } |
| return project.file("${intermediateDir}/snapshot_blob.bin.d") |
| } |
| |
| void buildFlx() { |
| if (!sourceDir.isDirectory()) { |
| throw new GradleException("Invalid Flutter source directory: ${sourceDir}") |
| } |
| |
| intermediateDir.mkdirs() |
| |
| if (buildMode != "debug") { |
| project.exec { |
| executable flutterExecutable.absolutePath |
| workingDir sourceDir |
| if (localEngine != null) { |
| args "--local-engine", localEngine |
| args "--local-engine-src-path", localEngineSrcPath |
| } |
| args "build", "aot" |
| args "--suppress-analytics" |
| args "--quiet" |
| args "--target", targetPath |
| args "--target-platform", "android-arm" |
| args "--output-dir", "${intermediateDir}" |
| args "--${buildMode}" |
| } |
| } |
| |
| project.exec { |
| executable flutterExecutable.absolutePath |
| workingDir sourceDir |
| if (localEngine != null) { |
| args "--local-engine", localEngine |
| args "--local-engine-src-path", localEngineSrcPath |
| } |
| args "build", "flx" |
| args "--suppress-analytics" |
| args "--target", targetPath |
| if (kernelFile != null) { |
| args "--kernel", kernelFile.absolutePath |
| } |
| args "--output-file", "${intermediateDir}/app.flx" |
| if (buildMode != "debug") { |
| args "--precompiled" |
| } else { |
| args "--snapshot", "${intermediateDir}/snapshot_blob.bin" |
| args "--depfile", "${intermediateDir}/snapshot_blob.bin.d" |
| } |
| args "--working-dir", "${intermediateDir}/flx" |
| } |
| } |
| } |
| |
| class GenerateDependencies extends BaseFlutterTask { |
| @TaskAction |
| void build() { |
| File dependenciesFile = getDependenciesFile(); |
| if (!dependenciesFile.exists()) { |
| buildFlx() |
| } |
| } |
| } |
| |
| class FlutterTask extends BaseFlutterTask { |
| @OutputDirectory |
| File getOutputDirectory() { |
| return intermediateDir |
| } |
| |
| CopySpec getAssets() { |
| return project.copySpec { |
| from "${intermediateDir}/app.flx" |
| if (buildMode != 'debug') { |
| from "${intermediateDir}/vm_snapshot_data" |
| from "${intermediateDir}/vm_snapshot_instr" |
| from "${intermediateDir}/isolate_snapshot_data" |
| from "${intermediateDir}/isolate_snapshot_instr" |
| } |
| } |
| } |
| |
| FileCollection readDependencies(File dependenciesFile) { |
| if (dependenciesFile.exists()) { |
| try { |
| // Dependencies file has Makefile syntax: |
| // <target> <files>: <source> <files> <separated> <by> <space> |
| String depText = dependenciesFile.text |
| return project.files(depText.split(': ')[1].split()) |
| } catch (Exception e) { |
| logger.error("Error reading dependency file ${dependenciesFile}: ${e}") |
| } |
| } |
| return null |
| } |
| |
| @InputFiles |
| FileCollection getSourceFiles() { |
| File dependenciesFile = getDependenciesFile() |
| FileCollection sources = readDependencies(dependenciesFile) |
| if (sources != null) { |
| // We have a dependencies file. Add a dependency on gen_snapshot as well, since the |
| // snapshots have to be rebuilt if it changes. |
| FileCollection snapshotter = readDependencies(project.file("${intermediateDir}/gen_snapshot.d")) |
| if (snapshotter != null) { |
| sources = sources.plus(snapshotter) |
| } |
| // Finally, add a dependency on pubspec.yaml as well. |
| return sources.plus(project.files('pubspec.yaml')) |
| } |
| // No dependencies file (or problems parsing it). Fall back to source files. |
| return project.fileTree( |
| dir: sourceDir, |
| exclude: ['android', 'ios'], |
| include: ['**/*.dart', 'pubspec.yaml'] |
| ) |
| } |
| |
| @TaskAction |
| void build() { |
| buildFlx() |
| } |
| } |
