private static Collection<Artifact> getTargetListAttribute(
RuleContext ruleContext, String attributeName) {
return (ruleContext.attributes().has(attributeName, BuildType.LABEL_LIST)
&& ruleContext.getAttributeMode(attributeName) == Mode.TARGET)
? ruleContext.getPrerequisiteArtifacts(attributeName, Mode.TARGET).list()
: ImmutableList.<Artifact>of();
}
/**
* Returns the list of proto files that were added directly into the deps attributes. This way
* of specifying the protos is deprecated, and displays a warning when the target does so.
*/
private ImmutableList<Artifact> getProtoDepsFiles() {
PrerequisiteArtifacts prerequisiteArtifacts =
ruleContext.getPrerequisiteArtifacts("deps", Mode.TARGET);
ImmutableList<Artifact> protos = prerequisiteArtifacts.filter(FileType.of(".proto")).list();
if (!protos.isEmpty()) {
ruleContext.attributeWarning("deps", FILES_DEPRECATED_WARNING);
}
return protos;
}
/** Returns the list of portable proto filters. */
ImmutableList<Artifact> getPortableProtoFilters() {
if (ruleContext
.attributes()
.has(ObjcProtoLibraryRule.PORTABLE_PROTO_FILTERS_ATTR, LABEL_LIST)) {
return ruleContext
.getPrerequisiteArtifacts(ObjcProtoLibraryRule.PORTABLE_PROTO_FILTERS_ATTR, Mode.HOST)
.list();
}
return ImmutableList.of();
}
protected void createActions(
ConfiguredTarget base,
RuleContext ruleContext,
Iterable<Artifact> protoSources,
NestedSet<Artifact> transitiveProtoSources,
Iterable<Artifact> headerMappingFiles,
Iterable<Artifact> classMappingFiles,
J2ObjcSource j2ObjcSource) {
String genDir = ruleContext.getConfiguration().getGenfilesDirectory().getExecPathString();
Artifact compiler = ruleContext.getPrerequisiteArtifact("$protoc_darwin", Mode.HOST);
Artifact j2objcPlugin = ruleContext.getPrerequisiteArtifact("$j2objc_plugin", Mode.HOST);
ruleContext.registerAction(
new SpawnAction.Builder()
.setMnemonic("TranslatingJ2ObjcProtos")
.addInput(compiler)
.addInput(j2objcPlugin)
.addInputs(
ruleContext.getPrerequisiteArtifacts("$protoc_support_darwin", Mode.HOST).list())
.addInputs(protoSources)
.addTransitiveInputs(transitiveProtoSources)
.addOutputs(j2ObjcSource.getObjcSrcs())
.addOutputs(j2ObjcSource.getObjcHdrs())
.addOutputs(headerMappingFiles)
.addOutputs(classMappingFiles)
.setExecutable(new PathFragment("/usr/bin/python"))
.setCommandLine(
new CustomCommandLine.Builder()
.add(compiler.getPath().toString())
.add("-w")
.add(compiler.getRoot().getPath().toString())
.add("--generate-j2objc")
.add("--generator-param=file_dir_mapping")
.add("--generator-param=generate_class_mappings")
.add("--j2objc-plugin=" + j2objcPlugin.getExecPathString())
.add("--output-dir=" + genDir)
.addExecPaths(protoSources)
.build())
.setExecutionInfo(ImmutableMap.of(ExecutionRequirements.REQUIRES_DARWIN, ""))
.build(ruleContext));
}
/** Returns the list of files needed by the proto compiler. */
ImmutableList<Artifact> getProtoCompilerSupport() {
return ruleContext
.getPrerequisiteArtifacts(ObjcRuleClasses.PROTO_COMPILER_SUPPORT_ATTR, Mode.HOST)
.list();
}
/** Returns the list of well known type protos. */
ImmutableList<Artifact> getWellKnownTypeProtos() {
return ruleContext
.getPrerequisiteArtifacts(ObjcRuleClasses.PROTOBUF_WELL_KNOWN_TYPES, Mode.HOST)
.list();
}