Examples of org.eclipse.jgit.internal.storage.file.ObjectDirectory$AlternateRepository

Package org.eclipse.jgit.internal.storage.file

Examples of org.eclipse.jgit.internal.storage.file.ObjectDirectory$AlternateRepository

org.eclipse.jgit.internal.storage.file.ObjectDirectory
Traditional file system based {@link ObjectDatabase}.
This is the classical object database representation for a Git repository, where objects are stored loose by hashing them into directories by their {@link ObjectId}, or are stored in compressed containers known as {@link PackFile}s.
Optionally an object database can reference one or more alternates; other ObjectDatabase instances that are searched in addition to the current database.
Databases are divided into two halves: a half that is considered to be fast to search (the {@code PackFile}s), and a half that is considered to be slow to search (loose objects). When alternates are present the fast half is fully searched (recursively through all alternates) before the slow half is considered.

   *
   * @throws Exception
   */
  public void packAndPrune() throws Exception {
    if (db.getObjectDatabase() instanceof ObjectDirectory) {
      ObjectDirectory odb = (ObjectDirectory) db.getObjectDatabase();
      NullProgressMonitor m = NullProgressMonitor.INSTANCE;


      final File pack, idx;
      PackWriter pw = new PackWriter(db);
      try {
        Set<ObjectId> all = new HashSet<ObjectId>();
        for (Ref r : db.getAllRefs().values())
          all.add(r.getObjectId());
        pw.preparePack(m, all, Collections.<ObjectId> emptySet());


        final ObjectId name = pw.computeName();
        OutputStream out;


        pack = nameFor(odb, name, ".pack");
        out = new SafeBufferedOutputStream(new FileOutputStream(pack));
        try {
          pw.writePack(m, m, out);
        } finally {
          out.close();
        }
        pack.setReadOnly();


        idx = nameFor(odb, name, ".idx");
        out = new SafeBufferedOutputStream(new FileOutputStream(idx));
        try {
          pw.writeIndex(out);
        } finally {
          out.close();
        }
        idx.setReadOnly();
      } finally {
        pw.release();
      }


      odb.openPack(pack);
      updateServerInfo();
      prunePacked(odb);
    }
  }

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  @Test
  public void testConcurrentInsertionOfBlobsToTheSameNewFanOutDirectory()
      throws Exception {
    ExecutorService e = Executors.newCachedThreadPool();
    for (int i=0; i < 100; ++i) {
      ObjectDirectory db = createBareRepository().getObjectDatabase();
      for (Future f : e.invokeAll(blobInsertersForTheSameFanOutDir(db))) {
        f.get();
      }
    }
  }

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    digest(pack);
    openPack(pack);


    // Verify the only storage of b is our packed delta above.
    //
    ObjectDirectory od = (ObjectDirectory) src.getObjectDatabase();
    assertTrue("has b", src.hasObject(b));
    assertFalse("b not loose", od.fileFor(b).exists());


    // Now use b but in a different commit than what is hidden.
    //
    TestRepository<Repository> s = new TestRepository<Repository>(src);
    RevCommit N = s.commit().parent(B).add("q", b).create();

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