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From GitBox <...@apache.org>
Subject [GitHub] [nifi-registry] HorizonNet commented on a change in pull request #248: NIFIREG-227 GitFlowPersistenceProvider option to clone repo on startup
Date Wed, 20 Nov 2019 22:55:27 GMT
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_r348787535
 
 

 ##########
 File path: nifi-registry-core/nifi-registry-framework/src/main/java/org/apache/nifi/registry/provider/flow/git/GitFlowMetaData.java
 ##########
 @@ -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);
 
 Review comment:
   Can be `final`.

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