@Override
public SkyValue compute(SkyKey skyKey, Environment env)
throws WorkspaceFileFunctionException, InterruptedException {
RootedPath workspaceRoot = (RootedPath) skyKey.argument();
FileValue workspaceFileValue = (FileValue) env.getValue(FileValue.key(workspaceRoot));
if (workspaceFileValue == null) {
return null;
}
Path repoWorkspace = workspaceRoot.getRoot().getRelative(workspaceRoot.getRelativePath());
Builder builder =
com.google.devtools.build.lib.packages.Package.newExternalPackageBuilder(
repoWorkspace, packageFactory.getRuleClassProvider().getRunfilesPrefix());
try (Mutability mutability = Mutability.create("workspace %s", repoWorkspace)) {
WorkspaceFactory parser =
new WorkspaceFactory(
builder,
packageFactory.getRuleClassProvider(),
mutability,
installDir.getPathString());
parser.parse(
ParserInputSource.create(
ruleClassProvider.getDefaultWorkspaceFile(), new PathFragment("DEFAULT.WORKSPACE")));
if (!workspaceFileValue.exists()) {
return new PackageValue(builder.build());
}
try {
parser.parse(ParserInputSource.create(repoWorkspace, workspaceFileValue.getSize()));
} catch (IOException e) {
throw new WorkspaceFileFunctionException(e, Transience.TRANSIENT);
}
}
return new PackageValue(builder.build());
}
public String getParserError() {
List<Event> events = builder.getEvents();
assertThat(events.size()).isGreaterThan(0);
return events.get(0).getMessage();
}
public Package getPackage() {
return builder.build();
}