/**
* Search for a resource in a local path, or the main repository path.
*
* @param path the resource name
* @param loaders optional list of module loaders
* @param localRoot a repository to look first
* @return the resource
* @throws IOException if an I/O error occurred
*/
public Resource findResource(String path, ModuleLoader[] loaders, Repository localRoot)
throws IOException {
// Note: as an extension to the CommonJS modules API
// we allow absolute module paths for resources
File file = new File(path);
if (file.isAbsolute()) {
Resource res;
outer:
if (loaders != null) {
// loaders must contain at least one loader
assert loaders.length > 0 && loaders[0] != null;
for (ModuleLoader loader : loaders) {
res = new FileResource(path + loader.getExtension());
if (res.exists()) {
break outer;
}
}
res = new FileResource(path + loaders[0].getExtension());
} else {
res = new FileResource(file);
}
res.setAbsolute(true);
return res;
} else if (localRoot != null && (path.startsWith("./") || path.startsWith("../"))) {
String newpath = localRoot.getRelativePath() + path;
return findResource(newpath, loaders, null);
} else {
return config.getResource(normalizePath(path), loaders);
}
}
/**
* Search for a repository in the local path, or the main repository path.
*
* @param path the repository name
* @param localPath a repository to look first
* @return the repository
* @throws IOException if an I/O error occurred
*/
public Repository findRepository(String path, Repository localPath) throws IOException {
// To be consistent, always return absolute repository if path is absolute
// if we make this dependent on whether files exist we introduce a lot of
// vague and undetermined behaviour.
File file = new File(path);
if (file.isAbsolute()) {
return new FileRepository(file);
}
if (localPath != null) {
Repository repository = localPath.getChildRepository(path);
if (repository != null && repository.exists()) {
return repository;
}
}
return config.getRepository(normalizePath(path));
}