Beispiel #1
0
static int handle_grep_syntax(git_object **out, git_repository *repo, const git_oid *spec_oid, const char *pattern)
{
	regex_t preg;
	git_revwalk *walk = NULL;
	int error;

	if ((error = build_regex(&preg, pattern)) < 0)
		return error;

	if ((error = git_revwalk_new(&walk, repo)) < 0)
		goto cleanup;

	git_revwalk_sorting(walk, GIT_SORT_TIME);

	if (spec_oid == NULL) {
		if ((error = git_revwalk_push_glob(walk, "refs/*")) < 0)
			goto cleanup;
	} else if ((error = git_revwalk_push(walk, spec_oid)) < 0)
			goto cleanup;

	error = walk_and_search(out, walk, &preg);

cleanup:
	regfree(&preg);
	git_revwalk_free(walk);

	return error;
}
Beispiel #2
0
void test_revwalk_simplify__first_parent(void)
{
	git_repository *repo;
	git_revwalk *walk;
	git_oid id, expected[4];
	int i, error;

	for (i = 0; i < 4; i++) {
		git_oid_fromstr(&expected[i], expected_str[i]);
	}

	repo = cl_git_sandbox_init("testrepo.git");
	cl_git_pass(git_revwalk_new(&walk, repo));

	git_oid_fromstr(&id, commit_head);
	cl_git_pass(git_revwalk_push(walk, &id));
	git_revwalk_simplify_first_parent(walk);

	i = 0;
	while ((error = git_revwalk_next(&id, walk)) == 0) {
		cl_assert_equal_oid(&expected[i], &id);
		i++;
	}

	cl_assert_equal_i(i, 4);
	cl_assert_equal_i(error, GIT_ITEROVER);

	git_revwalk_free(walk);
}
Beispiel #3
0
//go through history using the revwalker object
bool MainWindow::walkHistory(git_commit* commit)
{
    git_commit* wcommit;
    const char* cmsg;
    const git_oid* oid = git_commit_id(commit);

    git_oid commit_oid;
    git_oid_cpy(&commit_oid, oid);

    git_revwalk* walker;

    git_revwalk_new(&walker, repo);
    git_revwalk_sorting(walker, GIT_SORT_TOPOLOGICAL | GIT_SORT_TIME);
    git_revwalk_push(walker, &commit_oid);

    while (git_revwalk_next(&commit_oid, walker) == 0)
    {
        int error = git_commit_lookup(&wcommit, repo, &commit_oid);

        cmsg  = git_commit_message(wcommit);
        qDebug() << "Commit msg = " << cmsg;
        git_commit_free(wcommit);
    }
    git_revwalk_free(walker);

}
Beispiel #4
0
static int test_walk(git_revwalk *walk, const git_oid *root,
		int flags, const int possible_results[][6], int results_count)
{
	git_oid oid;

	int i;
	int result_array[commit_count];

	git_revwalk_sorting(walk, flags);
	git_revwalk_push(walk, root);

	for (i = 0; i < commit_count; ++i)
		result_array[i] = -1;

	i = 0;

	while (git_revwalk_next(&oid, walk) == GIT_SUCCESS) {
		result_array[i++] = get_commit_index(&oid);
		/*{
			char str[41];
			git_oid_fmt(str, &oid);
			str[40] = 0;
			printf("  %d) %s\n", i, str);
		}*/
	}

	for (i = 0; i < results_count; ++i) 
		if (memcmp(possible_results[i],
				result_array, result_bytes) == 0)
			return GIT_SUCCESS;

	return GIT_ERROR;
}
Beispiel #5
0
static int push_commit(git_revwalk *walk, const git_oid *oid, int hide)
{
	if (hide)
		return git_revwalk_hide(walk, oid);
	else
		return git_revwalk_push(walk, oid);
}
Beispiel #6
0
static int handle_grep_syntax(git_object **out, git_repository *repo, const git_oid *spec_oid, const char *pattern)
{
	regex_t preg;
	git_revwalk *walk = NULL;
	int error = -1;

	if (build_regex(&preg, pattern) < 0)
		return -1;
		
	if (git_revwalk_new(&walk, repo) < 0)
		goto cleanup;

	git_revwalk_sorting(walk, GIT_SORT_TIME);

	if (spec_oid == NULL) {
		// TODO: @carlosmn: The glob should be refs/* but this makes git_revwalk_next() fails
		if (git_revwalk_push_glob(walk, "refs/heads/*") < 0)
			goto cleanup;
	} else if (git_revwalk_push(walk, spec_oid) < 0)
			goto cleanup;

	error = walk_and_search(out, walk, &preg);
		
cleanup:
	regfree(&preg);
	git_revwalk_free(walk);

	return error;
}
Beispiel #7
0
void test_revwalk_basic__disallow_non_commit(void)
{
	git_oid oid;

	cl_git_pass(git_oid_fromstr(&oid, "521d87c1ec3aef9824daf6d96cc0ae3710766d91"));
	cl_git_fail(git_revwalk_push(_walk, &oid));
}
Beispiel #8
0
static int test_walk(git_revwalk *walk, const git_oid *root,
		int flags, const int possible_results[][6], int results_count)
{
	git_revwalk_sorting(walk, flags);
	git_revwalk_push(walk, root);

	return test_walk_only(walk, possible_results, results_count);
}
Beispiel #9
0
int cmd_log(git_repository *repo, int argc, char **argv)
{
	int err = 0;
	int rc;
	git_revwalk *walk;
	git_oid oid;
	git_reference *revision_ref = NULL;
	git_object *revision_obj = NULL;

	rc = EXIT_FAILURE;

	git_revwalk_new(&walk,repo);
	if (argc > 1)
	{
		if ((err = git_reference_dwim(&revision_ref, repo, argv[1])))
			goto out;

		if ((err = git_reference_peel(&revision_obj, revision_ref, GIT_OBJ_ANY)))
			goto out;

		if ((err = git_revwalk_push(walk, git_object_id(revision_obj))))
			goto out;
	} else
	{
		git_revwalk_push_head(walk);
	}

	while ((git_revwalk_next(&oid, walk)) == 0)
	{
		struct git_commit *wcommit;

		if (git_commit_lookup(&wcommit, repo, &oid) != 0)
			continue;

		print_commit(wcommit,"commit %C\nAuthor: %a\nDate:   %d\n\n%m\n");

		git_commit_free(wcommit);
	}

	git_revwalk_free(walk);

	rc = EXIT_SUCCESS;
out:
	if (err != GIT_OK)
		libgit_error();
	if (revision_obj) git_object_free(revision_obj);
	if (revision_ref) git_reference_free(revision_ref);
	return rc;
}
Beispiel #10
0
static git_revwalk *gbr_revwalk_setup_fromto(git_repository *repo, git_oid *base, const git_oid *head)
{
	git_revwalk *walker;

	if (git_revwalk_new(&walker, repo) != 0) {
		gbr_perror("gbr_revwalk_setup_fromto()");
		return NULL;
	}

	git_revwalk_sorting(walker, GIT_SORT_REVERSE);
	git_revwalk_push(walker, head);
	git_revwalk_hide(walker, base);

	return walker;
}
Beispiel #11
0
PyObject *
Walker_push(Walker *self, PyObject *py_hex)
{
    int err;
    git_oid oid;

    err = py_str_to_git_oid_expand(self->repo->repo, py_hex, &oid);
    if (err < 0)
        return Error_set(err);

    err = git_revwalk_push(self->walk, &oid);
    if (err < 0)
        return Error_set(err);

    Py_RETURN_NONE;
}
Beispiel #12
0
PyObject *
Repository_walk(Repository *self, PyObject *args)
{
    PyObject *value;
    unsigned int sort = GIT_SORT_NONE;
    int err;
    git_oid oid;
    git_revwalk *walk;
    Walker *py_walker;

    if (!PyArg_ParseTuple(args, "O|I", &value, &sort))
        return NULL;

    err = git_revwalk_new(&walk, self->repo);
    if (err < 0)
        return Error_set(err);

    /* Sort */
    git_revwalk_sorting(walk, sort);

    /* Push */
    if (value != Py_None) {
        err = py_oid_to_git_oid_expand(self->repo, value, &oid);
        if (err < 0) {
            git_revwalk_free(walk);
            return NULL;
        }

        err = git_revwalk_push(walk, &oid);
        if (err < 0) {
            git_revwalk_free(walk);
            return Error_set(err);
        }
    }

    py_walker = PyObject_New(Walker, &WalkerType);
    if (!py_walker) {
        git_revwalk_free(walk);
        return NULL;
    }

    Py_INCREF(self);
    py_walker->repo = self;
    py_walker->walk = walk;
    return (PyObject*)py_walker;
}
Beispiel #13
0
static int rebase_init_operations(
	git_rebase *rebase,
	git_repository *repo,
	const git_annotated_commit *branch,
	const git_annotated_commit *upstream,
	const git_annotated_commit *onto)
{
	git_revwalk *revwalk = NULL;
	git_commit *commit;
	git_oid id;
	bool merge;
	git_rebase_operation *operation;
	int error;

	if (!upstream)
		upstream = onto;

	if ((error = git_revwalk_new(&revwalk, rebase->repo)) < 0 ||
		(error = git_revwalk_push(revwalk, git_annotated_commit_id(branch))) < 0 ||
		(error = git_revwalk_hide(revwalk, git_annotated_commit_id(upstream))) < 0)
		goto done;

	git_revwalk_sorting(revwalk, GIT_SORT_REVERSE | GIT_SORT_TIME);

	while ((error = git_revwalk_next(&id, revwalk)) == 0) {
		if ((error = git_commit_lookup(&commit, repo, &id)) < 0)
			goto done;

		merge = (git_commit_parentcount(commit) > 1);
		git_commit_free(commit);

		if (merge)
			continue;

		operation = git_array_alloc(rebase->operations);
		operation->type = GIT_REBASE_OPERATION_PICK;
		git_oid_cpy((git_oid *)&operation->id, &id);
	}

	error = 0;

done:
	git_revwalk_free(revwalk);
	return error;
}
/*
 *  call-seq:
 *    walker.push(commit) -> nil
 *
 *  Push one new +commit+ to start the walk from. +commit+ must be a
 *  +String+ with the OID of a commit in the repository, or a <tt>Rugged::Commit</tt>
 *  instance.
 *
 *  More than one commit may be pushed to the walker (to walk several
 *  branches simulataneously).
 *
 *  Duplicate pushed commits will be ignored; at least one commit must have been
 *  pushed as a starting point before the walk can begin.
 *
 *    walker.push("92b22bbcb37caf4f6f53d30292169e84f5e4283b")
 */
static VALUE rb_git_walker_push(VALUE self, VALUE rb_commit)
{
	git_revwalk *walk;
	git_commit *commit;
	int error;

	Data_Get_Struct(self, git_revwalk, walk);

	commit = (git_commit *)rugged_object_get(
		git_revwalk_repository(walk), rb_commit, GIT_OBJ_COMMIT);

	error = git_revwalk_push(walk, git_object_id((git_object *)commit));

	git_commit_free(commit);
	rugged_exception_check(error);

	return Qnil;
}
Beispiel #15
0
void test_revwalk_basic__mimic_git_rev_list(void)
{
   git_oid oid;

   revwalk_basic_setup_walk(NULL);
   git_revwalk_sorting(_walk, GIT_SORT_TIME);

   cl_git_pass(git_revwalk_push_ref(_walk, "refs/heads/br2"));
   cl_git_pass(git_revwalk_push_ref(_walk, "refs/heads/master"));
   cl_git_pass(git_oid_fromstr(&oid, "e90810b8df3e80c413d903f631643c716887138d"));
   cl_git_pass(git_revwalk_push(_walk, &oid));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "e90810b8df3e80c413d903f631643c716887138d"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "6dcf9bf7541ee10456529833502442f385010c3d"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "a4a7dce85cf63874e984719f4fdd239f5145052f"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "be3563ae3f795b2b4353bcce3a527ad0a4f7f644"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "c47800c7266a2be04c571c04d5a6614691ea99bd"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "9fd738e8f7967c078dceed8190330fc8648ee56a"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "4a202b346bb0fb0db7eff3cffeb3c70babbd2045"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "5b5b025afb0b4c913b4c338a42934a3863bf3644"));

   cl_git_pass(git_revwalk_next(&oid, _walk));
   cl_assert(!git_oid_streq(&oid, "8496071c1b46c854b31185ea97743be6a8774479"));

   cl_git_fail_with(git_revwalk_next(&oid, _walk), GIT_ITEROVER);
}
Beispiel #16
0
/*
* Difference between test_revwalk_basic__multiple_push_1 and 
* test_revwalk_basic__multiple_push_2 is in the order reference
* refs/heads/packed-test and commit 5b5b02 are pushed. 
* revwalk should return same commits in both the tests.

* $ git rev-list 5b5b02 HEAD ^refs/heads/packed-test
* a65fedf39aefe402d3bb6e24df4d4f5fe4547750
* be3563ae3f795b2b4353bcce3a527ad0a4f7f644
* c47800c7266a2be04c571c04d5a6614691ea99bd
* 9fd738e8f7967c078dceed8190330fc8648ee56a

* $ git log 5b5b02 HEAD --oneline --not refs/heads/packed-test | wc -l => 4
* a65fedf
* be3563a Merge branch 'br2'
* c47800c branch commit one
* 9fd738e a fourth commit
*/
void test_revwalk_basic__multiple_push_2(void)
{
	int i = 0;
	git_oid oid;

	revwalk_basic_setup_walk(NULL);

	cl_git_pass(git_oid_fromstr(&oid, "5b5b025afb0b4c913b4c338a42934a3863bf3644"));
	cl_git_pass(git_revwalk_push(_walk, &oid));

	cl_git_pass(git_revwalk_hide_ref(_walk, "refs/heads/packed-test"));

	cl_git_pass(git_revwalk_push_head(_walk));

	while (git_revwalk_next(&oid, _walk) == 0)
		i++;

	cl_assert_equal_i(i, 4);
}
Beispiel #17
0
int cmd_rev_list(git_repository *repo, int argc, char **argv)
{
	const char *commit_string = NULL;
	const char *format = NULL;
	int i = 0;
	git_oid commit_oid;
	git_oid current_oid;
	char current_oid_str[GIT_OID_HEXSZ+1];
	int err = 0;
	int rc = EXIT_FAILURE;
	git_commit *commit;
	git_revwalk *walk;

	for (i = 1; i < argc; i++)
	{
		if (*argv[i] == '-')
		{
			if (!prefixcmp(argv[i], "--pretty="))
			{
				format = argv[i] + strlen("--pretty=");
			} else
			{
				fprintf(stderr,"Unknown option \"%s\"\n",argv[i]);
				goto out;
			}
		} else
		{
			commit_string = argv[i];
		}
	}

	if (!commit_string)
	{
		fprintf(stderr,"No commit id given!\n");
		goto out;
	}

	if (format)
	{
		fprintf(stderr,"Format \"%s\" not supported!\n",format);
		goto out;
	}

	if ((err = git_oid_fromstrn(&commit_oid,commit_string,strlen(commit_string))) != GIT_OK)
		goto out;

	if ((err = git_commit_lookup_prefix(&commit,repo,&commit_oid,strlen(commit_string))) != GIT_OK)
		goto out;

	if ((err = git_revwalk_new(&walk, repo)) != GIT_OK)
		goto out;

	git_revwalk_sorting(walk, GIT_SORT_TIME);

	if ((err = git_revwalk_push(walk, &commit_oid)) != GIT_OK)
		goto out;

	while ((git_revwalk_next(&current_oid, walk)) == GIT_OK)
	{
		struct git_commit *wcommit;

		if (git_commit_lookup(&wcommit, repo, &current_oid) != 0)
			continue;

		git_oid_tostr(current_oid_str,sizeof(current_oid_str),&current_oid);
		printf("%s\n",current_oid_str);
		git_commit_free(wcommit);
	}

	git_revwalk_free(walk);
out:
	if (err) libgit_error();
	if (commit) git_commit_free(commit);
	return rc;
}
Beispiel #18
0
int main (int argc, char** argv)
{
  // ### Opening the Repository

  // There are a couple of methods for opening a repository, this being the simplest.
  // There are also [methods][me] for specifying the index file and work tree locations, here
  // we are assuming they are in the normal places.
  //
  // [me]: http://libgit2.github.com/libgit2/#HEAD/group/repository
  git_repository *repo;
  if (argc > 1) {
    git_repository_open(&repo, argv[1]);
  } else {
    git_repository_open(&repo, "/opt/libgit2-test/.git");
  }

  // ### SHA-1 Value Conversions

  // For our first example, we will convert a 40 character hex value to the 20 byte raw SHA1 value.
  printf("*Hex to Raw*\n");
  char hex[] = "fd6e612585290339ea8bf39c692a7ff6a29cb7c3";

  // The `git_oid` is the structure that keeps the SHA value. We will use this throughout the example
  // for storing the value of the current SHA key we're working with.
  git_oid oid;
  git_oid_fromstr(&oid, hex);

  // Once we've converted the string into the oid value, we can get the raw value of the SHA.
  printf("Raw 20 bytes: [%.20s]\n", (&oid)->id);

  // Next we will convert the 20 byte raw SHA1 value to a human readable 40 char hex value.
  printf("\n*Raw to Hex*\n");
  char out[41];
  out[40] = '\0';

  // If you have a oid, you can easily get the hex value of the SHA as well.
  git_oid_fmt(out, &oid);
  printf("SHA hex string: %s\n", out);

  // ### Working with the Object Database
  // **libgit2** provides [direct access][odb] to the object database.
  // The object database is where the actual objects are stored in Git. For
  // working with raw objects, we'll need to get this structure from the
  // repository.
  // [odb]: http://libgit2.github.com/libgit2/#HEAD/group/odb
  git_odb *odb;
  git_repository_odb(&odb, repo);

  // #### Raw Object Reading

  printf("\n*Raw Object Read*\n");
  git_odb_object *obj;
  git_otype otype;
  const unsigned char *data;
  const char *str_type;
  int error;

  // We can read raw objects directly from the object database if we have the oid (SHA)
  // of the object.  This allows us to access objects without knowing thier type and inspect
  // the raw bytes unparsed.
  error = git_odb_read(&obj, odb, &oid);

  // A raw object only has three properties - the type (commit, blob, tree or tag), the size
  // of the raw data and the raw, unparsed data itself.  For a commit or tag, that raw data
  // is human readable plain ASCII text. For a blob it is just file contents, so it could be
  // text or binary data. For a tree it is a special binary format, so it's unlikely to be
  // hugely helpful as a raw object.
  data = (const unsigned char *)git_odb_object_data(obj);
  otype = git_odb_object_type(obj);

  // We provide methods to convert from the object type which is an enum, to a string
  // representation of that value (and vice-versa).
  str_type = git_object_type2string(otype);
  printf("object length and type: %d, %s\n",
      (int)git_odb_object_size(obj),
      str_type);

  // For proper memory management, close the object when you are done with it or it will leak
  // memory.
  git_odb_object_free(obj);

  // #### Raw Object Writing

  printf("\n*Raw Object Write*\n");

  // You can also write raw object data to Git. This is pretty cool because it gives you
  // direct access to the key/value properties of Git.  Here we'll write a new blob object
  // that just contains a simple string.  Notice that we have to specify the object type as
  // the `git_otype` enum.
  git_odb_write(&oid, odb, "test data", sizeof("test data") - 1, GIT_OBJ_BLOB);

  // Now that we've written the object, we can check out what SHA1 was generated when the
  // object was written to our database.
  git_oid_fmt(out, &oid);
  printf("Written Object: %s\n", out);

  // ### Object Parsing
  // libgit2 has methods to parse every object type in Git so you don't have to work directly
  // with the raw data. This is much faster and simpler than trying to deal with the raw data
  // yourself.

  // #### Commit Parsing
  // [Parsing commit objects][pco] is simple and gives you access to all the data in the commit
  // - the // author (name, email, datetime), committer (same), tree, message, encoding and parent(s).
  // [pco]: http://libgit2.github.com/libgit2/#HEAD/group/commit

  printf("\n*Commit Parsing*\n");

  git_commit *commit;
  git_oid_fromstr(&oid, "f0877d0b841d75172ec404fc9370173dfffc20d1");

  error = git_commit_lookup(&commit, repo, &oid);

  const git_signature *author, *cmtter;
  const char *message;
  time_t ctime;
  unsigned int parents, p;

  // Each of the properties of the commit object are accessible via methods, including commonly
  // needed variations, such as `git_commit_time` which returns the author time and `_message`
  // which gives you the commit message.
  message  = git_commit_message(commit);
  author   = git_commit_author(commit);
  cmtter   = git_commit_committer(commit);
  ctime    = git_commit_time(commit);

  // The author and committer methods return [git_signature] structures, which give you name, email
  // and `when`, which is a `git_time` structure, giving you a timestamp and timezone offset.
  printf("Author: %s (%s)\n", author->name, author->email);

  // Commits can have zero or more parents. The first (root) commit will have no parents, most commits
  // will have one, which is the commit it was based on, and merge commits will have two or more.
  // Commits can technically have any number, though it's pretty rare to have more than two.
  parents  = git_commit_parentcount(commit);
  for (p = 0;p < parents;p++) {
    git_commit *parent;
    git_commit_parent(&parent, commit, p);
    git_oid_fmt(out, git_commit_id(parent));
    printf("Parent: %s\n", out);
    git_commit_free(parent);
  }

  // Don't forget to close the object to prevent memory leaks. You will have to do this for
  // all the objects you open and parse.
  git_commit_free(commit);

  // #### Writing Commits
  //
  // libgit2 provides a couple of methods to create commit objects easily as well. There are four
  // different create signatures, we'll just show one of them here.  You can read about the other
  // ones in the [commit API docs][cd].
  // [cd]: http://libgit2.github.com/libgit2/#HEAD/group/commit

  printf("\n*Commit Writing*\n");
  git_oid tree_id, parent_id, commit_id;
  git_tree *tree;
  git_commit *parent;

  // Creating signatures for an authoring identity and time is pretty simple - you will need to have
  // this to create a commit in order to specify who created it and when.  Default values for the name
  // and email should be found in the `user.name` and `user.email` configuration options.  See the `config`
  // section of this example file to see how to access config values.
  git_signature_new((git_signature **)&author, "Scott Chacon", "*****@*****.**",
      123456789, 60);
  git_signature_new((git_signature **)&cmtter, "Scott A Chacon", "*****@*****.**",
      987654321, 90);

  // Commit objects need a tree to point to and optionally one or more parents.  Here we're creating oid
  // objects to create the commit with, but you can also use
  git_oid_fromstr(&tree_id, "28873d96b4e8f4e33ea30f4c682fd325f7ba56ac");
  git_tree_lookup(&tree, repo, &tree_id);
  git_oid_fromstr(&parent_id, "f0877d0b841d75172ec404fc9370173dfffc20d1");
  git_commit_lookup(&parent, repo, &parent_id);

  // Here we actually create the commit object with a single call with all the values we need to create
  // the commit.  The SHA key is written to the `commit_id` variable here.
  git_commit_create_v(
    &commit_id, /* out id */
    repo,
    NULL, /* do not update the HEAD */
    author,
    cmtter,
    NULL, /* use default message encoding */
    "example commit",
    tree,
    1, parent);

  // Now we can take a look at the commit SHA we've generated.
  git_oid_fmt(out, &commit_id);
  printf("New Commit: %s\n", out);

  // #### Tag Parsing
  // You can parse and create tags with the [tag management API][tm], which functions very similarly
  // to the commit lookup, parsing and creation methods, since the objects themselves are very similar.
  // [tm]: http://libgit2.github.com/libgit2/#HEAD/group/tag
  printf("\n*Tag Parsing*\n");
  git_tag *tag;
  const char *tmessage, *tname;
  git_otype ttype;

  // We create an oid for the tag object if we know the SHA and look it up in the repository the same
  // way that we would a commit (or any other) object.
  git_oid_fromstr(&oid, "bc422d45275aca289c51d79830b45cecebff7c3a");

  error = git_tag_lookup(&tag, repo, &oid);

  // Now that we have the tag object, we can extract the information it generally contains: the target
  // (usually a commit object), the type of the target object (usually 'commit'), the name ('v1.0'),
  // the tagger (a git_signature - name, email, timestamp), and the tag message.
  git_tag_target((git_object **)&commit, tag);
  tname = git_tag_name(tag);    // "test"
  ttype = git_tag_type(tag);    // GIT_OBJ_COMMIT (otype enum)
  tmessage = git_tag_message(tag); // "tag message\n"
  printf("Tag Message: %s\n", tmessage);

  git_commit_free(commit);

  // #### Tree Parsing
  // [Tree parsing][tp] is a bit different than the other objects, in that we have a subtype which is the
  // tree entry.  This is not an actual object type in Git, but a useful structure for parsing and
  // traversing tree entries.
  //
  // [tp]: http://libgit2.github.com/libgit2/#HEAD/group/tree
  printf("\n*Tree Parsing*\n");

  const git_tree_entry *entry;
  git_object *objt;

  // Create the oid and lookup the tree object just like the other objects.
  git_oid_fromstr(&oid, "2a741c18ac5ff082a7caaec6e74db3075a1906b5");
  git_tree_lookup(&tree, repo, &oid);

  // Getting the count of entries in the tree so you can iterate over them if you want to.
  int cnt = git_tree_entrycount(tree); // 3
  printf("tree entries: %d\n", cnt);

  entry = git_tree_entry_byindex(tree, 0);
  printf("Entry name: %s\n", git_tree_entry_name(entry)); // "hello.c"

  // You can also access tree entries by name if you know the name of the entry you're looking for.
  entry = git_tree_entry_byname(tree, "hello.c");
  git_tree_entry_name(entry); // "hello.c"

  // Once you have the entry object, you can access the content or subtree (or commit, in the case
  // of submodules) that it points to.  You can also get the mode if you want.
  git_tree_entry_to_object(&objt, repo, entry); // blob

  // Remember to close the looked-up object once you are done using it
  git_object_free(objt);

  // #### Blob Parsing
  //
  // The last object type is the simplest and requires the least parsing help. Blobs are just file
  // contents and can contain anything, there is no structure to it. The main advantage to using the
  // [simple blob api][ba] is that when you're creating blobs you don't have to calculate the size
  // of the content.  There is also a helper for reading a file from disk and writing it to the db and
  // getting the oid back so you don't have to do all those steps yourself.
  //
  // [ba]: http://libgit2.github.com/libgit2/#HEAD/group/blob

  printf("\n*Blob Parsing*\n");
  git_blob *blob;

  git_oid_fromstr(&oid, "af7574ea73f7b166f869ef1a39be126d9a186ae0");
  git_blob_lookup(&blob, repo, &oid);

  // You can access a buffer with the raw contents of the blob directly.
  // Note that this buffer may not be contain ASCII data for certain blobs (e.g. binary files):
  // do not consider the buffer a NULL-terminated string, and use the `git_blob_rawsize` attribute to
  // find out its exact size in bytes
  printf("Blob Size: %ld\n", git_blob_rawsize(blob)); // 8
  git_blob_rawcontent(blob); // "content"

  // ### Revwalking
  //
  // The libgit2 [revision walking api][rw] provides methods to traverse the directed graph created
  // by the parent pointers of the commit objects.  Since all commits point back to the commit that
  // came directly before them, you can walk this parentage as a graph and find all the commits that
  // were ancestors of (reachable from) a given starting point.  This can allow you to create `git log`
  // type functionality.
  //
  // [rw]: http://libgit2.github.com/libgit2/#HEAD/group/revwalk

  printf("\n*Revwalking*\n");
  git_revwalk *walk;
  git_commit *wcommit;

  git_oid_fromstr(&oid, "f0877d0b841d75172ec404fc9370173dfffc20d1");

  // To use the revwalker, create a new walker, tell it how you want to sort the output and then push
  // one or more starting points onto the walker.  If you want to emulate the output of `git log` you
  // would push the SHA of the commit that HEAD points to into the walker and then start traversing them.
  // You can also 'hide' commits that you want to stop at or not see any of their ancestors.  So if you
  // want to emulate `git log branch1..branch2`, you would push the oid of `branch2` and hide the oid
  // of `branch1`.
  git_revwalk_new(&walk, repo);
  git_revwalk_sorting(walk, GIT_SORT_TOPOLOGICAL | GIT_SORT_REVERSE);
  git_revwalk_push(walk, &oid);

  const git_signature *cauth;
  const char *cmsg;

  // Now that we have the starting point pushed onto the walker, we can start asking for ancestors. It
  // will return them in the sorting order we asked for as commit oids.
  // We can then lookup and parse the commited pointed at by the returned OID;
  // note that this operation is specially fast since the raw contents of the commit object will
  // be cached in memory
  while ((git_revwalk_next(&oid, walk)) == 0) {
    error = git_commit_lookup(&wcommit, repo, &oid);
    cmsg  = git_commit_message(wcommit);
    cauth = git_commit_author(wcommit);
    printf("%s (%s)\n", cmsg, cauth->email);
    git_commit_free(wcommit);
  }

  // Like the other objects, be sure to free the revwalker when you're done to prevent memory leaks.
  // Also, make sure that the repository being walked it not deallocated while the walk is in
  // progress, or it will result in undefined behavior
  git_revwalk_free(walk);

  // ### Index File Manipulation
  //
  // The [index file API][gi] allows you to read, traverse, update and write the Git index file
  // (sometimes thought of as the staging area).
  //
  // [gi]: http://libgit2.github.com/libgit2/#HEAD/group/index

  printf("\n*Index Walking*\n");

  git_index *index;
  unsigned int i, ecount;

  // You can either open the index from the standard location in an open repository, as we're doing
  // here, or you can open and manipulate any index file with `git_index_open_bare()`. The index
  // for the repository will be located and loaded from disk.
  git_repository_index(&index, repo);

  // For each entry in the index, you can get a bunch of information including the SHA (oid), path
  // and mode which map to the tree objects that are written out.  It also has filesystem properties
  // to help determine what to inspect for changes (ctime, mtime, dev, ino, uid, gid, file_size and flags)
  // All these properties are exported publicly in the `git_index_entry` struct
  ecount = git_index_entrycount(index);
  for (i = 0; i < ecount; ++i) {
    git_index_entry *e = git_index_get(index, i);

    printf("path: %s\n", e->path);
    printf("mtime: %d\n", (int)e->mtime.seconds);
    printf("fs: %d\n", (int)e->file_size);
  }

  git_index_free(index);

  // ### References
  //
  // The [reference API][ref] allows you to list, resolve, create and update references such as
  // branches, tags and remote references (everything in the .git/refs directory).
  //
  // [ref]: http://libgit2.github.com/libgit2/#HEAD/group/reference

  printf("\n*Reference Listing*\n");

  // Here we will implement something like `git for-each-ref` simply listing out all available
  // references and the object SHA they resolve to.
  git_strarray ref_list;
  git_reference_list(&ref_list, repo, GIT_REF_LISTALL);

  const char *refname;
  git_reference *ref;

  // Now that we have the list of reference names, we can lookup each ref one at a time and
  // resolve them to the SHA, then print both values out.
  for (i = 0; i < ref_list.count; ++i) {
    refname = ref_list.strings[i];
    git_reference_lookup(&ref, repo, refname);

    switch (git_reference_type(ref)) {
    case GIT_REF_OID:
      git_oid_fmt(out, git_reference_oid(ref));
      printf("%s [%s]\n", refname, out);
      break;

    case GIT_REF_SYMBOLIC:
      printf("%s => %s\n", refname, git_reference_target(ref));
      break;
    default:
      fprintf(stderr, "Unexpected reference type\n");
      exit(1);
    }
  }

  git_strarray_free(&ref_list);

  // ### Config Files
  //
  // The [config API][config] allows you to list and updatee config values in
  // any of the accessible config file locations (system, global, local).
  //
  // [config]: http://libgit2.github.com/libgit2/#HEAD/group/config

  printf("\n*Config Listing*\n");

  const char *email;
  int32_t j;

  git_config *cfg;

  // Open a config object so we can read global values from it.
  git_config_open_ondisk(&cfg, "~/.gitconfig");

  git_config_get_int32(cfg, "help.autocorrect", &j);
  printf("Autocorrect: %d\n", j);

  git_config_get_string(cfg, "user.email", &email);
  printf("Email: %s\n", email);

  // Finally, when you're done with the repository, you can free it as well.
  git_repository_free(repo);

  return 0;
}
Beispiel #19
0
void QGit::listCommits(QString object, int length)
{
    QList<QGitCommit> commits;
    git_repository *repo = nullptr;
    git_revwalk *walker = nullptr;
    git_commit *parent = nullptr;
    git_commit *commit = nullptr;
    git_diff *diff = nullptr;
    git_oid oid;
    int count = 0;
    int res = 0;

    QGitError error;

    try {

        res = git_repository_open(&repo, m_path.absolutePath().toUtf8().constData());
        if (res)
        {
            throw QGitError("git_repository_open", res);
        }

        res = git_revwalk_new(&walker, repo);
        if (res)
        {
            throw QGitError("git_revwalk_new", res);
        }

        if (object.isEmpty())
        {
            res = git_revwalk_push_head(walker);
            if (res)
            {
                length = 0;
            }
        }
        else
        {
            res = git_oid_fromstr(&oid, object.toLatin1().constData());
            if (res)
            {
                throw QGitError("git_oid_fromstr", res);
            }

            res = git_revwalk_push(walker, &oid);
            if (res)
            {
                throw QGitError("git_revwalk_push", res);
            }

            memset(&oid, 0, sizeof(oid));

            git_revwalk_next(&oid, walker);

            memset(&oid, 0, sizeof(oid));
        }

        while ((!git_revwalk_next(&oid, walker))&&(count < length)) {

            QGitCommit item;
            unsigned int parents = 0;

            QString commit_id;
            QList<QGitCommitDiffParent> commit_parents;
            QDateTime commit_time;
            QGitSignature commit_author;
            QGitSignature commit_commiter;
            QString commit_message;

            res = git_commit_lookup(&commit, repo, &oid);
            if (res)
            {
                throw QGitError("git_commit_lookup", res);
            }

            commit_id = QString::fromUtf8(git_oid_tostr_s(&oid));

            parents = git_commit_parentcount(commit);
            for(unsigned int index = 0; index < parents; index++)
            {
                git_commit *parent = nullptr;
                QByteArray parentStr;

                res = git_commit_parent(&parent, commit, index);
                if (res)
                {
                    throw QGitError("git_commit_parent", res);
                }

                const git_oid *parent_iod =  git_commit_id(parent);
                parentStr = QByteArray(git_oid_tostr_s(parent_iod));

                commit_parents.append(QGitCommitDiffParent(parentStr));

                git_commit_free(parent);
                parent = nullptr;
            }

            auto time = git_commit_time(commit);
            auto timeOffset = git_commit_time_offset(commit);
            commit_time = QDateTime::fromMSecsSinceEpoch(time * 1000);
            commit_time.setOffsetFromUtc(timeOffset * 60);

            QString author_name = QString::fromUtf8(git_commit_author(commit)->name);
            QString author_email = QString::fromUtf8(git_commit_author(commit)->email);
            QDateTime author_when = QDateTime::fromMSecsSinceEpoch(git_commit_author(commit)->when.time * 1000);
            author_when.setOffsetFromUtc(git_commit_author(commit)->when.offset * 60);
            commit_author = QGitSignature(author_name, author_email, author_when);

            QString commiter_name =  QString::fromUtf8(git_commit_committer(commit)->name);
            QString commiter_email = QString::fromUtf8(git_commit_committer(commit)->email);
            QDateTime commiter_when = QDateTime::fromMSecsSinceEpoch(git_commit_committer(commit)->when.time * 1000);
            commiter_when.setOffsetFromUtc(git_commit_committer(commit)->when.offset * 60);
            commit_commiter = QGitSignature(commiter_name, commiter_email, commiter_when);

            commit_message = QString::fromUtf8(git_commit_message(commit));

            item = QGitCommit(commit_id, commit_parents, commit_time, commit_author, commit_commiter, commit_message);

            commits.push_back(item);

            git_diff_free(diff);
            diff = nullptr;

            git_commit_free(parent);
            parent = nullptr;

            git_commit_free(commit);
            commit = nullptr;

            count++;
        }

    } catch(const QGitError &ex) {
        error = ex;
    }

    emit listCommitsReply(commits, error);

    if (diff)
    {
        git_diff_free(diff);
        diff = nullptr;
    }

    if (parent)
    {
        git_commit_free(parent);
        parent = nullptr;
    }

    if (walker)
    {
        git_revwalk_free(walker);
        walker = nullptr;
    }

    if (repo)
    {
        git_repository_free(repo);
        repo = nullptr;
    }
}
Beispiel #20
0
int cmd_rev_list(int argc, const char **argv)
{
    /* Doesn't pass the tests due to bug in libgit2 apparently */
    please_git_do_it_for_me();

    const char *commit_string = NULL;
    const char *format = NULL;
    int i = 0;
    git_repository *repository=NULL;
    git_oid commit_oid;
    git_oid current_oid;
    char commit_oid_string[GIT_OID_HEXSZ+1];
    size_t len;
    int e;

    /* For now, we only implement --format=oneline */
    if (argc != 3) {
        please_git_do_it_for_me();
    }

    for (i = 1; i < 3; ++i) {
        if (*argv[i] == '-') {
            if (!prefixcmp(argv[i], "--pretty=")) {
                format = argv[i] + strlen("--pretty=");
            }
        } else {
            commit_string = argv[i];
        }
    }

    if (!commit_string) {
        /* Show usage : ask git for now */
        please_git_do_it_for_me();
    }
    if (!format) {
        /* No option or not handled option */
        please_git_do_it_for_me();
    }
    if (strcmp(format, "oneline")) {
        /* Format not supported for now */
        please_git_do_it_for_me();
    }

    /* Supported object specifications are full or short oid */
    /* Create the partial oid (filled with '0's) from the given argument */
    len = strlen(commit_string);
    if (len > GIT_OID_HEXSZ) {
        /* It's not a sha1 */
        please_git_do_it_for_me();
    }
    memcpy(commit_oid_string, commit_string, len * sizeof(char));
    memset(commit_oid_string + len, '0', (GIT_OID_HEXSZ - len) * sizeof(char));
    commit_oid_string[GIT_OID_HEXSZ] = '\0';
    e = git_oid_fromstr(&commit_oid, commit_oid_string);
    if (e) {
        /* Not an OID. The object can be specified in a lot
         * of different ways (not supported by libgit2 yet).
         * Fall back to git.
         */
        please_git_do_it_for_me();
    }

    repository = get_git_repository();

    /* Lookup the commit object */
    e = git_object_lookup_prefix((git_object **)&commit, repository, &commit_oid, len, GIT_OBJ_ANY);
    if (e != GIT_OK) {
        if (e == GIT_ENOTFOUND) {
            /* Maybe the given argument is not a sha1
             * but a tag name (which looks like a sha1)
             * Fall back to git.
             */
            please_git_do_it_for_me();
        } else if (e == GIT_EAMBIGUOUS) {
            error("%s is an ambiguous prefix", commit_string);
        } else {
            libgit_error();
        }
    }
    if (git_object_type((git_object *)commit) != GIT_OBJ_COMMIT) {
        /* Not a commit : nothing to do */
        cleanup();

        return EXIT_SUCCESS;
    }

    if (git_revwalk_new(&walk, repository)) {
        cleanup();
        libgit_error();
    }

    git_revwalk_sorting(walk, GIT_SORT_TIME);

    if (git_revwalk_push(walk, &commit_oid)) {
        cleanup();
        libgit_error();
    }

    git_commit_close(commit);
    if ((git_revwalk_next(&current_oid, walk)) == GIT_OK) {
        char oid_string[GIT_OID_HEXSZ+1];
        oid_string[GIT_OID_HEXSZ] = '\0';
        const char *cmsg;

        while (1) {
            git_oid_fmt(oid_string, &current_oid);
            if (git_commit_lookup(&commit, repository, &current_oid)) {
                libgit_error();
            }

            cmsg  = git_commit_message(commit);

            git_oid_fmt(oid_string, git_commit_id(commit));
            printf("%s %s\n", oid_string, cmsg);

            if ((git_revwalk_next(&current_oid, walk)) != GIT_OK)
                break;
            git_commit_close(commit);
        }
    }

    cleanup();

    return EXIT_SUCCESS;
}
Beispiel #21
0
int QGitRevWalk::push(const QGitCommit& commit) const
{
    return git_revwalk_push(m_revWalk, commit.oid().data());
}