HorizonNet commented on a change in pull request #248: NIFIREG-227
GitFlowPersistenceProvider option to clone repo on startup
URL: https://github.com/apache/nifi-registry/pull/248#discussion_r348787338
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File path:
nifi-registry-core/nifi-registry-framework/src/main/java/org/apache/nifi/registry/provider/flow/git/GitFlowMetaData.java
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@@ -131,6 +135,56 @@ private Repository openRepository(final File
gitProjectRootDir) throws IOExcepti
return builder.build();
}
+ private static boolean hasAtLeastOneReference(Repository repo) {
+ logger.info(repo.toString());
+ for (Ref ref : repo.getAllRefs().values()) {
+ if (ref.getObjectId() == null)
+ continue;
+ return true;
+ }
+ return false;
+ }
+
+ public boolean localRepoExists(File localRepo) throws IOException {
+ if (!localRepo.isDirectory()) {
+ logger.info("{} is not a directory or does not exist.",
localRepo.getPath());
+ return false;
+ }
+
+ if (RepositoryCache.FileKey.isGitRepository(new
File(localRepo.getPath()+"/.git"), FS.DETECTED)) {
+ Git git = Git.open(new File(localRepo.getPath() + "/.git"));
+ Repository repository = git.getRepository();
+ logger.info("Checking for git references in {}",
localRepo.getPath());
+ boolean referenceExists = hasAtLeastOneReference(repository);
+ if (referenceExists)
+ logger.info("{} local repository exists with references so no
need to clone remote", localRepo.getPath());
+ // Can be an empty repository if no references are present should
we pull from remote?
+ return true;
+ }
+ return false;
+ }
+
+ public void remoteRepoExists(String remoteRepository) throws IOException {
+ Git git = new Git(FileRepositoryBuilder.create(new
File(remoteRepository)));
Review comment:
Can also be `final`.
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