private CustomCommandLine getPb2CommandLine() {
CustomCommandLine.Builder commandLineBuilder =
new CustomCommandLine.Builder()
.add(attributes.getProtoCompiler().getExecPathString())
.add("--input-file-list")
.add(getProtoInputListFile().getExecPathString())
.add("--output-dir")
.add(getWorkspaceRelativeOutputDir().getSafePathString())
.add("--working-dir")
.add(".");
if (attributes.getOptionsFile() != null) {
commandLineBuilder
.add("--compiler-options-path")
.add(attributes.getOptionsFile().getExecPathString());
}
if (attributes.outputsCpp()) {
commandLineBuilder.add("--generate-cpp");
}
if (attributes.usesObjcHeaderNames()) {
commandLineBuilder.add("--use-objc-header-names");
}
return commandLineBuilder.build();
}
/**
* Validates proto support.
*
* <ul>
* <li>Validates that there are protos specified to be compiled.
* <li>Validates that, when enabling the open source protobuf library, the options for the PB2
* are not specified also.
* <li>Validates that, when enabling the open source protobuf library, the rule specifies at
* least one portable proto filter file.
* </ul>
*
* @return this proto support
*/
public ProtoSupport validate() {
if (attributes.getProtoFiles().isEmpty()) {
ruleContext.ruleError(NO_PROTOS_ERROR);
}
if (usesProtobufLibrary()) {
if (attributes.getPortableProtoFilters().isEmpty()) {
ruleContext.ruleError(PORTABLE_PROTO_FILTERS_EMPTY_ERROR);
}
if (attributes.outputsCpp()
|| attributes.usesObjcHeaderNames()
|| attributes.needsPerProtoIncludes()
|| attributes.getOptionsFile() != null) {
ruleContext.ruleError(PORTABLE_PROTO_FILTERS_NOT_EXCLUSIVE_ERROR);
}
}
return this;
}
private ImmutableList<Artifact> getGeneratedHeaders() {
boolean useObjcName = attributes.usesObjcHeaderNames() || usesProtobufLibrary();
return generatedOutputArtifacts(FileType.of(".pb" + (useObjcName ? "objc.h" : ".h")));
}