/**
* Paths.computeRelativePath(basePathWithSlash, "") generates the relative path from base path of
* current build target to the root of the project.
*
* <p>Paths.computeRelativePath("", basePathWithSlash) generates the relative path from the root
* of the project to base path of current build target.
*
* <p>For example, for the build target in $PROJECT_DIR$/android_res/com/facebook/gifts/, Intellij
* will generate $PROJECT_DIR$/buck-out/android/android_res/com/facebook/gifts/gen
*
* @return the relative path of gen from the base path of current module.
*/
static String generateRelativeGenPath(String basePathOfModuleWithSlash) {
return "/"
+ Paths.computeRelativePath(basePathOfModuleWithSlash, "")
+ ANDROID_GEN_DIR
+ "/"
+ Paths.computeRelativePath("", basePathOfModuleWithSlash)
+ "gen";
}
private Module createModuleForProjectConfig(ProjectConfigRule projectConfig) throws IOException {
BuildRule projectRule = projectConfig.getProjectRule();
Preconditions.checkState(
projectRule instanceof JavaLibraryRule
|| projectRule instanceof AndroidLibraryRule
|| projectRule instanceof AndroidResourceRule
|| projectRule instanceof AndroidBinaryRule
|| projectRule instanceof NdkLibraryRule,
"project_config() does not know how to process a src_target of type %s.",
projectRule.getType().getName());
LinkedHashSet<DependentModule> dependencies = Sets.newLinkedHashSet();
final BuildTarget target = projectConfig.getBuildTarget();
Module module = new Module(projectRule, target);
module.name = getIntellijNameForRule(projectRule);
module.isIntelliJPlugin = projectConfig.getIsIntelliJPlugin();
String relativePath = projectConfig.getBuildTarget().getBasePathWithSlash();
module.pathToImlFile = String.format("%s%s.iml", relativePath, module.name);
// List the module source as the first dependency.
boolean includeSourceFolder = true;
// Do the tests before the sources so they appear earlier in the classpath. When tests are run,
// their classpath entries may be deliberately shadowing production classpath entries.
// tests folder
boolean hasSourceFoldersForTestRule =
addSourceFolders(
module,
projectConfig.getTestRule(),
projectConfig.getTestsSourceRoots(),
true /* isTestSource */);
// test dependencies
BuildRule testRule = projectConfig.getTestRule();
if (testRule != null) {
walkRuleAndAdd(testRule, true /* isForTests */, dependencies, projectConfig.getSrcRule());
}
// src folder
boolean hasSourceFoldersForSrcRule =
addSourceFolders(
module,
projectConfig.getSrcRule(),
projectConfig.getSourceRoots(),
false /* isTestSource */);
// At least one of src or tests should contribute a source folder unless this is an
// non-library Android project with no source roots specified.
if (!hasSourceFoldersForTestRule && !hasSourceFoldersForSrcRule) {
includeSourceFolder = false;
}
// IntelliJ expects all Android projects to have a gen/ folder, even if there is no src/
// directory specified.
boolean isAndroidRule = projectRule.isAndroidRule();
if (isAndroidRule) {
boolean hasSourceFolders = !module.sourceFolders.isEmpty();
module.sourceFolders.add(SourceFolder.GEN);
if (!hasSourceFolders) {
includeSourceFolder = true;
}
}
// src dependencies
// Note that isForTests is false even if projectRule is the project_config's test_target.
walkRuleAndAdd(projectRule, false /* isForTests */, dependencies, projectConfig.getSrcRule());
String basePathWithSlash = projectConfig.getBuildTarget().getBasePathWithSlash();
// Specify another path for intellij to generate gen/ for each android module,
// so that it will not disturb our glob() rules.
// To specify the location of gen, Intellij requires the relative path from
// the base path of current build target.
module.moduleGenPath = generateRelativeGenPath(basePathWithSlash);
DependentModule jdkDependency;
if (isAndroidRule) {
// android details
if (projectRule instanceof NdkLibraryRule) {
NdkLibraryRule ndkLibraryRule = (NdkLibraryRule) projectRule;
module.isAndroidLibraryProject = true;
module.keystorePath = null;
module.nativeLibs =
Paths.computeRelativePath(relativePath, ndkLibraryRule.getLibraryPath());
} else if (projectRule instanceof AndroidResourceRule) {
AndroidResourceRule androidResourceRule = (AndroidResourceRule) projectRule;
module.resFolder = createRelativePath(androidResourceRule.getRes(), target);
module.isAndroidLibraryProject = true;
module.keystorePath = null;
} else if (projectRule instanceof AndroidBinaryRule) {
AndroidBinaryRule androidBinaryRule = (AndroidBinaryRule) projectRule;
module.resFolder = null;
module.isAndroidLibraryProject = false;
KeystoreProperties keystoreProperties =
KeystoreProperties.createFromPropertiesFile(
androidBinaryRule.getPathToKeystoreProperties(), projectFilesystem);
// getKeystore() returns a path relative to the project root, but an IntelliJ module
// expects the path to the keystore to be relative to the module root, so we strip off the
// module path.
String keystorePathRelativeToProjectRoot = keystoreProperties.getKeystore();
String keystorePath = keystorePathRelativeToProjectRoot.substring(relativePath.length());
module.keystorePath = keystorePath;
} else {
module.isAndroidLibraryProject = true;
module.keystorePath = null;
}
module.hasAndroidFacet = true;
module.proguardConfigPath = null;
// If there is a default AndroidManifest.xml specified in .buckconfig, use it if
// AndroidManifest.xml is not present in the root of the [Android] IntelliJ module.
if (pathToDefaultAndroidManifest.isPresent()) {
String androidManifest = basePathWithSlash + "AndroidManifest.xml";
if (!projectFilesystem.exists(androidManifest)) {
String manifestPath = this.pathToDefaultAndroidManifest.get();
String rootPrefix = "//";
Preconditions.checkState(
manifestPath.startsWith(rootPrefix),
"Currently, we expect this option to start with '%s', "
+ "indicating that it is relative to the root of the repository.",
rootPrefix);
manifestPath = manifestPath.substring(rootPrefix.length());
String relativePathToManifest =
Paths.computeRelativePath(basePathWithSlash, manifestPath);
// IntelliJ requires that the path start with a slash to indicate that it is relative to
// the module.
module.androidManifest = "/" + relativePathToManifest;
}
}
// List this last so that classes from modules can shadow classes in the JDK.
jdkDependency = DependentModule.newInheritedJdk();
} else {
module.hasAndroidFacet = false;
if (module.isIntelliJPlugin()) {
jdkDependency = DependentModule.newIntelliJPluginJdk();
} else {
jdkDependency = DependentModule.newStandardJdk();
}
}
// Assign the dependencies.
module.dependencies =
createDependenciesInOrder(includeSourceFolder, dependencies, jdkDependency);
// Annotation processing generates sources for IntelliJ to consume, but does so outside
// the module directory to avoid messing up globbing.
if (projectRule instanceof JavaLibraryRule) {
JavaLibraryRule javaLibraryRule = (JavaLibraryRule) projectRule;
AnnotationProcessingData processingData = javaLibraryRule.getAnnotationProcessingData();
String annotationGenSrc = processingData.getGeneratedSourceFolderName();
if (annotationGenSrc != null) {
module.annotationGenPath =
"/" + Paths.computeRelativePath(basePathWithSlash, annotationGenSrc);
module.annotationGenIsForTest = !hasSourceFoldersForSrcRule;
}
}
return module;
}
/**
* @param module must be an android module
* @param nameToModuleIndex
* @returns the File that was written, or {@code null} if no file was written.
* @throws IOException
*/
@VisibleForTesting
@Nullable
File writeProjectDotPropertiesFile(Module module, Map<String, Module> nameToModuleIndex)
throws IOException {
String pathToImlFile = module.pathToImlFile;
SortedSet<String> references = Sets.newTreeSet();
for (DependentModule dependency : module.dependencies) {
if (!dependency.isModule()) {
continue;
}
Module dep = nameToModuleIndex.get(dependency.getModuleName());
if (dep == null) {
throw new HumanReadableException(
"You must define a project_config() in %s "
+ "containing %s. The project_config() in %s transitively depends on it.",
module.target.getBuildFile(),
dependency.getTargetName(),
module.target.getFullyQualifiedName());
}
if (!dep.isAndroidModule()) {
continue;
}
String relativePath =
Paths.computeRelativePath(
Paths.getParentPath(pathToImlFile), Paths.getParentPath(dep.pathToImlFile));
// Drop the trailing slash from the path, since that's what the Android tools appear to do
// when generating project.properties.
if (relativePath.endsWith("/")) {
relativePath = relativePath.substring(0, relativePath.length() - 1);
}
// This is probably a self-reference. Ignore it.
if (relativePath.isEmpty()) {
continue;
}
references.add(relativePath);
}
StringBuilder builder = new StringBuilder();
builder.append("# This file is automatically generated by Buck.\n");
builder.append("# Do not modify this file -- YOUR CHANGES WILL BE ERASED!\n");
// These are default values that IntelliJ or some other tool may overwrite.
builder.append("target=Google Inc.:Google APIs:16\n");
builder.append("proguard.config=proguard.cfg\n");
boolean isAndroidLibrary = module.isAndroidLibrary();
if (isAndroidLibrary) {
// Android does not seem to include this line for non-Android libraries.
builder.append("android.library=" + isAndroidLibrary + "\n");
}
int index = 1;
for (String path : references) {
builder.append(String.format("android.library.reference.%d=%s\n", index, path));
++index;
}
final Charset charset = Charsets.US_ASCII;
File outputFile = new File(createPathToProjectDotPropertiesFileFor(module));
String properties = builder.toString();
if (outputFile.exists() && Files.toString(outputFile, charset).equals(properties)) {
return null;
} else {
Files.write(properties, outputFile, charset);
return outputFile;
}
}