Examples of org.eclipse.jgit.lib.TreeFormatter

org.eclipse.jgit.lib.TreeFormatter
Mutable formatter to construct a single tree object. This formatter does not process subtrees. Callers must handle creating each subtree on their own. To maintain good performance for bulk operations, this formatter does not validate its input. Callers are responsible for ensuring the resulting tree object is correctly well formed by writing entries in the correct order.

  ObjectId writeTree(final DirCacheEntry[] cache, int cIdx,
      final int pathOffset, final ObjectInserter ow)
      throws UnmergedPathException, IOException {
    if (id == null) {
      final int endIdx = cIdx + entrySpan;
      final TreeFormatter fmt = new TreeFormatter(computeSize(cache,
          cIdx, pathOffset, ow));
      int childIdx = 0;
      int entryIdx = cIdx;


      while (entryIdx < endIdx) {
        final DirCacheEntry e = cache[entryIdx];
        final byte[] ep = e.path;
        if (childIdx < childCnt) {
          final DirCacheTree st = children[childIdx];
          if (st.contains(ep, pathOffset, ep.length)) {
            fmt.append(st.encodedName, TREE, st.id);
            entryIdx += st.entrySpan;
            childIdx++;
            continue;
          }
        }


        fmt.append(ep, pathOffset, ep.length - pathOffset, e
            .getFileMode(), e.idBuffer(), e.idOffset());
        entryIdx++;
      }


      id = ow.insert(fmt);

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  }


  private TreeFormatter build() {
    byte[] nameBuf = new byte[OBJECT_ID_STRING_LENGTH];
    int nameLen = OBJECT_ID_STRING_LENGTH - prefixLen;
    TreeFormatter fmt = new TreeFormatter(treeSize(nameLen));
    NonNoteEntry e = nonNotes;


    for (int i = 0; i < cnt; i++) {
      Note n = notes[i];


      n.copyTo(nameBuf, 0);


      while (e != null
          && e.pathCompare(nameBuf, prefixLen, nameLen, REGULAR_FILE) < 0) {
        e.format(fmt);
        e = e.next;
      }


      fmt.append(nameBuf, prefixLen, nameLen, REGULAR_FILE, n.getData());
    }


    for (; e != null; e = e.next)
      e.format(fmt);
    return fmt;

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  }


  private TreeFormatter build(boolean insert, ObjectInserter inserter)
      throws IOException {
    byte[] nameBuf = new byte[2];
    TreeFormatter fmt = new TreeFormatter(treeSize());
    NonNoteEntry e = nonNotes;


    for (int cell = 0; cell < 256; cell++) {
      NoteBucket b = table[cell];
      if (b == null)
        continue;


      nameBuf[0] = hexchar[cell >>> 4];
      nameBuf[1] = hexchar[cell & 0x0f];


      while (e != null && e.pathCompare(nameBuf, 0, 2, TREE) < 0) {
        e.format(fmt);
        e = e.next;
      }


      ObjectId id;
      if (insert) {
        id = b.writeTree(inserter);
      } else {
        id = b.getTreeId();
      }
      fmt.append(nameBuf, 0, 2, TREE, id);
    }


    for (; e != null; e = e.next)
      e.format(fmt);
    return fmt;

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        // Create a blob object to insert into a tree
        ObjectId blobId = odi.insert(Constants.OBJ_BLOB,
            message.getBytes(Constants.CHARACTER_ENCODING));


        // Create a tree object to reference from a commit
        TreeFormatter tree = new TreeFormatter();
        tree.append(".branch", FileMode.REGULAR_FILE, blobId);
        ObjectId treeId = odi.insert(tree);


        // Create a commit object
        CommitBuilder commit = new CommitBuilder();
        commit.setAuthor(author);

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        // Create a blob object to insert into a tree
        ObjectId blobId = odi.insert(Constants.OBJ_BLOB,
            message.getBytes(Constants.CHARACTER_ENCODING));


        // Create a tree object to reference from a commit
        TreeFormatter tree = new TreeFormatter();
        tree.append(".branch", FileMode.REGULAR_FILE, blobId);
        ObjectId treeId = odi.insert(tree);


        // Create a commit object
        CommitBuilder commit = new CommitBuilder();
        commit.setAuthor(author);

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  ObjectId writeTree(final DirCacheEntry[] cache, int cIdx,
      final int pathOffset, final ObjectInserter ow)
      throws UnmergedPathException, IOException {
    if (id == null) {
      final int endIdx = cIdx + entrySpan;
      final TreeFormatter fmt = new TreeFormatter(computeSize(cache,
          cIdx, pathOffset, ow));
      int childIdx = 0;
      int entryIdx = cIdx;


      while (entryIdx < endIdx) {
        final DirCacheEntry e = cache[entryIdx];
        final byte[] ep = e.path;
        if (childIdx < childCnt) {
          final DirCacheTree st = children[childIdx];
          if (st.contains(ep, pathOffset, ep.length)) {
            fmt.append(st.encodedName, TREE, st.id);
            entryIdx += st.entrySpan;
            childIdx++;
            continue;
          }
        }


        fmt.append(ep, pathOffset, ep.length - pathOffset, e
            .getFileMode(), e.idBuffer(), e.idOffset());
        entryIdx++;
      }


      id = ow.insert(fmt);

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    // open when we create it we won't write the object file out as a loose
    // object (as it already exists in the pack).
    //
    final Repository newdb = createBareRepository();
    final ObjectInserter oi = newdb.newObjectInserter();
    final ObjectId treeId = oi.insert(new TreeFormatter());
    oi.release();


    assertEquals("4b825dc642cb6eb9a060e54bf8d69288fbee4904", treeId.name());
    final File o = new File(new File(new File(newdb.getDirectory(),
        "objects"), "4b"), "825dc642cb6eb9a060e54bf8d69288fbee4904");

View Full Code Here


  @Test
  public void test002_WriteEmptyTree2() throws IOException {
    // File shouldn't exist as it is in a test pack.
    //
    final ObjectId treeId = insertTree(new TreeFormatter());
    assertEquals("4b825dc642cb6eb9a060e54bf8d69288fbee4904", treeId.name());
    final File o = new File(new File(
        new File(db.getDirectory(), "objects"), "4b"),
        "825dc642cb6eb9a060e54bf8d69288fbee4904");
    assertFalse("Exists " + o, o.isFile());

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    }
  }


  @Test
  public void test009_CreateCommitOldFormat() throws IOException {
    final ObjectId treeId = insertTree(new TreeFormatter());
    final CommitBuilder c = new CommitBuilder();
    c.setAuthor(new PersonIdent(author, 1154236443000L, -4 * 60));
    c.setCommitter(new PersonIdent(committer, 1154236443000L, -4 * 60));
    c.setMessage("A Commit\n");
    c.setTreeId(treeId);

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    final ObjectInserter oi = db.newObjectInserter();
    try {
      final ObjectId blobId = oi.insert(Constants.OBJ_BLOB,
          "and this is the data in me\n".getBytes(Constants.CHARSET
              .name()));
      TreeFormatter fmt = new TreeFormatter();
      fmt.append("i-am-a-file", FileMode.REGULAR_FILE, blobId);
      treeId = oi.insert(fmt);
      oi.flush();
    } finally {
      oi.release();
    }

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