/**
* Makes sure all build rules needed to produce the shared library are added to the action graph.
*
* @return the {@link SourcePath} representing the actual shared library.
*/
private SourcePath requireSharedLibrary(CxxPlatform cxxPlatform)
throws NoSuchBuildTargetException {
Path sharedLibraryPath =
PrebuiltCxxLibraryDescription.getSharedLibraryPath(
getBuildTarget(), params.getCellRoots(), ruleResolver, cxxPlatform, libDir, libName);
// If the shared library is prebuilt, just return a reference to it.
if (params.getProjectFilesystem().exists(sharedLibraryPath)) {
return new PathSourcePath(params.getProjectFilesystem(), sharedLibraryPath);
}
// Otherwise, generate it's build rule.
BuildRule sharedLibrary =
ruleResolver.requireRule(
getBuildTarget()
.withFlavors(cxxPlatform.getFlavor(), CxxDescriptionEnhancer.SHARED_FLAVOR));
return new BuildTargetSourcePath(sharedLibrary.getBuildTarget());
}
/**
* @return adds a the header {@link SymlinkTree} for the given rule to the {@link
* CxxPreprocessorInput}.
*/
public static CxxPreprocessorInput.Builder addHeaderSymlinkTree(
CxxPreprocessorInput.Builder builder,
BuildTarget target,
BuildRuleResolver ruleResolver,
Flavor flavor,
HeaderVisibility headerVisibility,
IncludeType includeType)
throws NoSuchBuildTargetException {
BuildRule rule =
ruleResolver.requireRule(
BuildTarget.builder(target)
.addFlavors(
flavor, CxxDescriptionEnhancer.getHeaderSymlinkTreeFlavor(headerVisibility))
.build());
Preconditions.checkState(
rule instanceof HeaderSymlinkTree,
"Attempt to add %s of type %s and class %s to %s",
rule.getFullyQualifiedName(),
rule.getType(),
rule.getClass(),
target);
HeaderSymlinkTree symlinkTree = (HeaderSymlinkTree) rule;
builder
.addRules(symlinkTree.getBuildTarget())
.setIncludes(
CxxHeaders.builder()
.setNameToPathMap(ImmutableSortedMap.copyOf(symlinkTree.getLinks()))
.setFullNameToPathMap(ImmutableSortedMap.copyOf(symlinkTree.getFullLinks()))
.build());
switch (includeType) {
case LOCAL:
builder.addIncludeRoots(symlinkTree.getIncludePath());
builder.addAllHeaderMaps(symlinkTree.getHeaderMap().asSet());
break;
case SYSTEM:
builder.addSystemIncludeRoots(symlinkTree.getSystemIncludePath());
break;
}
return builder;
}
