Examples with PathOrGlobMatcher com.facebook.buck.io.PathOrGlobMatcher used on opensource projects

Example 11 with PathOrGlobMatcher

use of com.facebook.buck.io.PathOrGlobMatcher in project buck by facebook.

the class FilesystemBackedBuildFileTree method getChildPaths.

/**
   * @return paths relative to BuildTarget that contain their own build files.
   */
@Override
public Collection<Path> getChildPaths(BuildTarget target) {
    // Crawl the subdirectories of target's base path, looking for build files.
    // When we find one, we can stop crawling anything under the directory it's in.
    final ImmutableSet.Builder<Path> childPaths = ImmutableSet.builder();
    final Path basePath = target.getBasePath();
    final ImmutableSet<PathOrGlobMatcher> ignoredPaths = projectFilesystem.getIgnorePaths();
    try {
        projectFilesystem.walkRelativeFileTree(basePath, new SimpleFileVisitor<Path>() {

            @Override
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
                for (PathOrGlobMatcher ignoredPath : ignoredPaths) {
                    if (ignoredPath.matches(dir)) {
                        return FileVisitResult.SKIP_SUBTREE;
                    }
                }
                if (dir.equals(basePath)) {
                    return FileVisitResult.CONTINUE;
                }
                Path buildFile = dir.resolve(buildFileName);
                if (pathExistenceCache.getUnchecked(buildFile)) {
                    childPaths.add(basePath.relativize(dir));
                    return FileVisitResult.SKIP_SUBTREE;
                }
                return FileVisitResult.CONTINUE;
            }
        });
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    return childPaths.build();
}