@Override
public List<Step> getBuildSteps(BuildContext context, BuildableContext buildableContext)
throws IOException {
ImmutableList.Builder<Step> commands = ImmutableList.builder();
// Clear out the old file, if it exists.
commands.add(
new RmStep(pathToOutputFile, /* shouldForceDeletion */ true, /* shouldRecurse */ false));
// Make sure the directory for the output file exists.
commands.add(new MkdirStep(pathToOutputFile.getParent()));
commands.add(
new GenerateManifestStep(
skeletonFile.resolve(context).toString(), manifestFiles, getPathToOutputFile()));
return commands.build();
}
@Override
public ImmutableList<Step> getBuildSteps(
BuildContext context, BuildableContext buildableContext) {
ImmutableList.Builder<Step> steps = ImmutableList.builder();
steps.add(new MakeCleanDirectoryStep(unpackDirectory));
steps.add(new UnzipStep(aarFile.resolve(), unpackDirectory));
steps.add(new TouchStep(getProguardConfig()));
steps.add(new MkdirStep(getAssetsDirectory()));
// For now, we do not support an .aar file that has entries in the libs directory.
// Basically, this is for simplicity because we do not know how many more prebuilt_jar rules
// we would have to add at enhacement time. If this is a problem in practice, then we can
// add a step that generates an uber-jar from classes.jar and the contents of the libs
// directory and then have the prebuilt_jar step wrap the uber-jar instead of classes.jar.
// Because there are not many .aar files in the wild, it is difficult to tell whether this
// will be a pain point for developers.
steps.add(
new AbstractExecutionStep("check_for_libs") {
@Override
public int execute(ExecutionContext context) {
Path libsDirectory = unpackDirectory.resolve("libs");
ProjectFilesystem projectFilesystem = context.getProjectFilesystem();
if (!projectFilesystem.exists(libsDirectory)) {
return 0;
}
if (projectFilesystem.listFiles(libsDirectory).length > 0) {
context.logError(
new IllegalArgumentException(),
"Error processing %s for %s. "
+ "Currently, Buck does not support .aar files with lib entries. "
+ "If this is a problem for you, please file an issue on GitHub.",
aarFile,
getBuildTarget());
return 1;
} else {
return 0;
}
}
});
buildableContext.recordArtifactsInDirectory(unpackDirectory);
return steps.build();
}
@Override
public RuleKey.Builder appendDetailsToRuleKey(RuleKey.Builder builder) {
return builder.set("skeleton", skeletonFile.asReference()).set("manifestFiles", manifestFiles);
}