Esempio n. 1
0
static VALUE
backend_read_blob(VALUE rb_obj, VALUE rb_oid) {
  git_oid oid;
  git_odb *odb;
  git_odb_object *g_obj;
  git_otype type;
  int error, size;
  char *data;
  VALUE rb_content;

  odb = DATA_PTR(rb_obj);

  error = git_oid_fromstr(&oid, RSTRING_PTR(rb_oid));
  backend_exception_check(error);

  error = git_odb_read(&g_obj, odb, &oid);
  backend_exception_check(error);

  data = (char *)git_odb_object_data(g_obj);
  size = git_odb_object_size(g_obj);
  type = git_odb_object_type(g_obj);

  if (type != GIT_OBJ_BLOB) {
    git_odb_object_free(g_obj);
    rb_raise(rb_eArgError, "oid does not belong to a blob");
  }

  rb_content = backend_str_new(data, size, NULL);
  git_odb_object_free(g_obj);
  return rb_content;
}
Esempio n. 2
0
int
py_oid_to_git_oid_expand(git_repository *repo, PyObject *py_str, git_oid *oid)
{
    int err;
    size_t len;
    git_odb *odb = NULL;
    git_odb_object *obj = NULL;

    len = py_oid_to_git_oid(py_str, oid);
    if (len == 0)
        return -1;

    if (len == GIT_OID_HEXSZ)
        return 0;

    /* Short oid */
    err = git_repository_odb(&odb, repo);
    if (err < 0)
        goto error;

    err = git_odb_read_prefix(&obj, odb, oid, len);
    if (err < 0)
        goto error;

    git_oid_cpy(oid, git_odb_object_id(obj));
    git_odb_object_free(obj);
    git_odb_free(odb);
    return 0;

error:
    git_odb_object_free(obj);
    git_odb_free(odb);
    Error_set(err);
    return -1;
}
Esempio n. 3
0
static void *cache_raw(void *arg)
{
	int i;
	git_oid oid;
	git_odb *odb;
	git_odb_object *odb_obj;

	cl_git_pass(git_repository_odb(&odb, g_repo));

	for (i = ((int *)arg)[1]; g_data[i].sha != NULL; i += 2) {
		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
		cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
		cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
		git_odb_object_free(odb_obj);
	}

	for (i = 0; i < ((int *)arg)[1]; i += 2) {
		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
		cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
		cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
		git_odb_object_free(odb_obj);
	}

	git_odb_free(odb);

	return arg;
}
Esempio n. 4
0
PyObject *
Repository_read(Repository *self, PyObject *py_hex)
{
    git_oid oid;
    git_odb_object *obj;
    int len;
    PyObject* tuple;

    len = py_str_to_git_oid(py_hex, &oid);
    if (len < 0)
        return NULL;

    obj = Repository_read_raw(self->repo, &oid, len);
    if (obj == NULL)
        return NULL;

    tuple = Py_BuildValue(
        "(ns#)",
        git_odb_object_type(obj),
        git_odb_object_data(obj),
        git_odb_object_size(obj));

    git_odb_object_free(obj);
    return tuple;
}
Esempio n. 5
0
PyObject *
Repository_read(Repository *self, PyObject *py_hex)
{
    git_oid oid;
    git_odb_object *obj;
    size_t len;
    PyObject* tuple;

    len = py_oid_to_git_oid(py_hex, &oid);
    if (len == 0)
        return NULL;

    obj = Repository_read_raw(self->repo, &oid, len);
    if (obj == NULL)
        return NULL;

    tuple = Py_BuildValue(
    #if PY_MAJOR_VERSION == 2
        "(ns#)",
    #else
        "(ny#)",
    #endif
        git_odb_object_type(obj),
        git_odb_object_data(obj),
        git_odb_object_size(obj));

    git_odb_object_free(obj);
    return tuple;
}
Esempio n. 6
0
void git_blob__free(void *_blob)
{
	git_blob *blob = (git_blob *) _blob;
	if (!blob->raw)
		git_odb_object_free(blob->data.odb);
	git__free(blob);
}
Esempio n. 7
0
int
Repository_contains(Repository *self, PyObject *value)
{
    git_oid oid;
    git_odb *odb;
    int err, len, exists;

    len = py_str_to_git_oid(value, &oid);
    if (len < 0)
        return -1;

    err = git_repository_odb(&odb, self->repo);
    if (err < 0) {
        Error_set(err);
        return -1;
    }

    if (len < GIT_OID_HEXSZ) {
        git_odb_object *obj = NULL;
        err = git_odb_read_prefix(&obj, odb, &oid, len);
        if (err < 0 && err != GIT_ENOTFOUND) {
            Error_set(err);
            exists = -1;
        } else {
            exists = (err == 0);
            if (obj)
                git_odb_object_free(obj);
        }
    } else {
        exists = git_odb_exists(odb, &oid);
    }

    git_odb_free(odb);
    return exists;
}
Esempio n. 8
0
File: oid.c Progetto: cholin/pygit2
int
py_str_to_git_oid_expand(git_repository *repo, PyObject *py_str, git_oid *oid)
{
    int err;
    int len;
    git_odb *odb;
    git_odb_object *obj;

    len = py_str_to_git_oid(py_str, oid);

    if (len == GIT_OID_HEXSZ || len < 0)
        return len;

    err = git_repository_odb(&odb, repo);
    if (err < 0) {
        Error_set(err);
        return -1;
    }

    err = git_odb_read_prefix(&obj, odb, oid, len);
    if (err < 0) {
        git_odb_free(odb);
        Error_set(err);
        return err;
    }

    git_oid_cpy(oid, git_odb_object_id(obj));

    git_odb_object_free(obj);
    git_odb_free(odb);

    return 0;
}
Esempio n. 9
0
void test_odb_mixed__dup_oid(void) {
	const char hex[] = "ce013625030ba8dba906f756967f9e9ca394464a";
	const char short_hex[] = "ce01362";
	git_oid oid;
	git_odb_object *obj;

	cl_git_pass(git_oid_fromstr(&oid, hex));
	cl_git_pass(git_odb_read_prefix(&obj, _odb, &oid, GIT_OID_HEXSZ));
	git_odb_object_free(obj);

	cl_git_pass(git_odb_exists_prefix(NULL, _odb, &oid, GIT_OID_HEXSZ));

	cl_git_pass(git_oid_fromstrn(&oid, short_hex, sizeof(short_hex) - 1));
	cl_git_pass(git_odb_read_prefix(&obj, _odb, &oid, sizeof(short_hex) - 1));
	git_odb_object_free(obj);

	cl_git_pass(git_odb_exists_prefix(NULL, _odb, &oid, sizeof(short_hex) - 1));
}
Esempio n. 10
0
int git_odb_read_header(size_t *len_p, git_otype *type_p, git_odb *db, const git_oid *id)
{
	int error;
	git_odb_object *object;

	error = git_odb__read_header_or_object(&object, len_p, type_p, db, id);

	if (object)
		git_odb_object_free(object);

	return error;
}
Esempio n. 11
0
void test_object_cache__cache_everything(void)
{
	int i, start;
	git_oid oid;
	git_odb_object *odb_obj;
	git_object *obj;
	git_odb *odb;

	git_libgit2_opts(
		GIT_OPT_SET_CACHE_OBJECT_LIMIT, (int)GIT_OBJ_BLOB, (size_t)32767);

	cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
	cl_git_pass(git_repository_odb(&odb, g_repo));

	start = (int)git_cache_size(&g_repo->objects);

	for (i = 0; g_data[i].sha != NULL; ++i) {
		int count = (int)git_cache_size(&g_repo->objects);

		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));

		/* alternate between loading raw and parsed objects */
		if ((i & 1) == 0) {
			cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
			cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
			git_odb_object_free(odb_obj);
		} else {
			cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
			cl_assert(g_data[i].type == git_object_type(obj));
			git_object_free(obj);
		}

		cl_assert_equal_i(count + 1, (int)git_cache_size(&g_repo->objects));
	}

	cl_assert_equal_i(i, (int)git_cache_size(&g_repo->objects) - start);

	git_odb_free(odb);

	for (i = 0; g_data[i].sha != NULL; ++i) {
		int count = (int)git_cache_size(&g_repo->objects);

		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
		cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJ_ANY));
		cl_assert(g_data[i].type == git_object_type(obj));
		git_object_free(obj);

		cl_assert_equal_i(count, (int)git_cache_size(&g_repo->objects));
	}
}
Esempio n. 12
0
void test_odb_packed__mass_read(void)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(packed_objects); ++i) {
		git_oid id;
		git_odb_object *obj;

		cl_git_pass(git_oid_fromstr(&id, packed_objects[i]));
		cl_assert(git_odb_exists(_odb, &id) == 1);
		cl_git_pass(git_odb_read(&obj, _odb, &id));

		git_odb_object_free(obj);
	}
}
Esempio n. 13
0
static int diff_file_content_load_blob(git_diff_file_content *fc)
{
	int error = 0;
	git_odb_object *odb_obj = NULL;

	if (git_oid_iszero(&fc->file->oid))
		return 0;

	if (fc->file->mode == GIT_FILEMODE_COMMIT)
		return diff_file_content_commit_to_str(fc, false);

	/* if we don't know size, try to peek at object header first */
	if (!fc->file->size) {
		git_odb *odb;
		size_t len;
		git_otype type;

		if (!(error = git_repository_odb__weakptr(&odb, fc->repo))) {
			error = git_odb__read_header_or_object(
				&odb_obj, &len, &type, odb, &fc->file->oid);
			git_odb_free(odb);
		}
		if (error)
			return error;

		fc->file->size = len;
	}

	if (diff_file_content_binary_by_size(fc))
		return 0;

	if (odb_obj != NULL) {
		error = git_object__from_odb_object(
			(git_object **)&fc->blob, fc->repo, odb_obj, GIT_OBJ_BLOB);
		git_odb_object_free(odb_obj);
	} else {
		error = git_blob_lookup(
			(git_blob **)&fc->blob, fc->repo, &fc->file->oid);
	}

	if (!error) {
		fc->flags |= GIT_DIFF_FLAG__FREE_BLOB;
		fc->map.data = (void *)git_blob_rawcontent(fc->blob);
		fc->map.len  = (size_t)git_blob_rawsize(fc->blob);
	}

	return error;
}
Esempio n. 14
0
static void test_read_object(object_data *data)
{
    git_oid id;
    git_odb_object *obj;
	git_odb *odb;

    write_object_files(data);

    cl_git_pass(git_odb_open(&odb, "test-objects"));
    cl_git_pass(git_oid_fromstr(&id, data->id));
    cl_git_pass(git_odb_read(&obj, odb, &id));

    cmp_objects((git_rawobj *)&obj->raw, data);

    git_odb_object_free(obj);
	git_odb_free(odb);
}
Esempio n. 15
0
void test_odb_largefiles__read_into_memory_rejected_on_32bit(void)
{
	git_oid oid;
	git_odb_object *obj = NULL;

#ifdef GIT_ARCH_64
	cl_skip();
#endif

	if (!cl_is_env_set("GITTEST_INVASIVE_FS_SIZE") ||
		!cl_is_env_set("GITTEST_INVASIVE_MEMORY") ||
		!cl_is_env_set("GITTEST_SLOW"))
		cl_skip();

	writefile(&oid);
	cl_git_fail(git_odb_read(&obj, odb, &oid));

	git_odb_object_free(obj);
}
Esempio n. 16
0
PyObject *
Object_read_raw(Object *self)
{
    const git_oid *oid;
    git_odb_object *obj;
    PyObject *aux;

    oid = git_object_id(self->obj);

    obj = Repository_read_raw(self->repo->repo, oid, GIT_OID_HEXSZ);
    if (obj == NULL)
        return NULL;

    aux = PyBytes_FromStringAndSize(
        git_odb_object_data(obj),
        git_odb_object_size(obj));

    git_odb_object_free(obj);
    return aux;
}
Esempio n. 17
0
int git_commit_list_parse(git_revwalk *walk, git_commit_list_node *commit)
{
	git_odb_object *obj;
	int error;

	if (commit->parsed)
		return 0;

	if ((error = git_odb_read(&obj, walk->odb, &commit->oid)) < 0)
		return error;

	if (obj->raw.type != GIT_OBJ_COMMIT) {
		giterr_set(GITERR_INVALID, "Object is no commit object");
		error = -1;
	} else
		error = commit_quick_parse(walk, commit, &obj->raw);

	git_odb_object_free(obj);
	return error;
}
Esempio n. 18
0
static int diff_file_content_load_blob(
	git_diff_file_content *fc,
	git_diff_options *opts)
{
	int error = 0;
	git_odb_object *odb_obj = NULL;

	if (git_oid_iszero(&fc->file->id))
		return 0;

	if (fc->file->mode == GIT_FILEMODE_COMMIT)
		return diff_file_content_commit_to_str(fc, false);

	/* if we don't know size, try to peek at object header first */
	if (!fc->file->size) {
		if ((error = git_diff_file__resolve_zero_size(
				fc->file, &odb_obj, fc->repo)) < 0)
			return error;
	}

	if ((opts->flags & GIT_DIFF_SHOW_BINARY) == 0 &&
		diff_file_content_binary_by_size(fc))
		return 0;

	if (odb_obj != NULL) {
		error = git_object__from_odb_object(
			(git_object **)&fc->blob, fc->repo, odb_obj, GIT_OBJECT_BLOB);
		git_odb_object_free(odb_obj);
	} else {
		error = git_blob_lookup(
			(git_blob **)&fc->blob, fc->repo, &fc->file->id);
	}

	if (!error) {
		fc->flags |= GIT_DIFF_FLAG__FREE_BLOB;
		fc->map.data = (void *)git_blob_rawcontent(fc->blob);
		fc->map.len  = (size_t)git_blob_rawsize(fc->blob);
	}

	return error;
}
Esempio n. 19
0
void test_odb_packed__read_header_0(void)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(packed_objects); ++i) {
		git_oid id;
		git_odb_object *obj;
		size_t len;
		git_object_t type;

		cl_git_pass(git_oid_fromstr(&id, packed_objects[i]));

		cl_git_pass(git_odb_read(&obj, _odb, &id));
		cl_git_pass(git_odb_read_header(&len, &type, _odb, &id));

		cl_assert(obj->cached.size == len);
		cl_assert(obj->cached.type == type);

		git_odb_object_free(obj);
	}
}
Esempio n. 20
0
static gboolean
checksum_object_id (struct TreeWalkData  *twdata,
                    const git_oid *oid,
                    GError       **error)
{
  gboolean ret = FALSE;
  int r;
  git_odb_object *odbobj = NULL;

  r = git_odb_read (&odbobj, twdata->odb, oid);
  if (!handle_libgit_ret (r, error))
    goto out;

  checksum_odb_object (twdata->evtag, odbobj);
  
  ret = TRUE;
 out:
  if (odbobj)
    git_odb_object_free (odbobj);
  return ret;
}
Esempio n. 21
0
static void test_read_object(object_data *data)
{
    git_oid id;
    git_odb_object *obj;
	git_odb *odb;
	git_rawobj tmp;

    write_object_files(data);

    cl_git_pass(git_odb_open(&odb, "test-objects"));
    cl_git_pass(git_oid_fromstr(&id, data->id));
    cl_git_pass(git_odb_read(&obj, odb, &id));

	tmp.data = obj->buffer;
	tmp.len = obj->cached.size;
	tmp.type = obj->cached.type;

    cmp_objects(&tmp, data);

    git_odb_object_free(obj);
	git_odb_free(odb);
}
Esempio n. 22
0
int each_object(const git_oid *id, void *payload){
  struct pl *p=payload;
  git_odb_object *out;


  check_error(git_odb_read(&out,p->odb,id),"odb_read");
  struct object *oo=(struct object *)malloc(sizeof(struct object));
  oo->size=git_odb_object_size(out);
  git_oid_tostr(oo->strid,GIT_OID_HEXSZ+1,id);
  /*
  if(osize>1024*1024) {
	osize /= 1024 *1024;
	uom='M';
  } else if (osize > 10*1024){
	osize /= 1024;
	uom='K';
	}*/
  oo->otype=git_odb_object_type(out);
  git_odb_object_free(out);
  ary_add(p->ary,(void*)oo);
  //printf("%05d: %s %5ld%c %s\n",p->count++,strid,osize,uom,git_object_type2string(otype));
  return 0;
}
Esempio n. 23
0
int git_odb_exists(git_odb *db, const git_oid *id)
{
	git_odb_object *object;
	size_t i;
	bool found = false;

	assert(db && id);

	if ((object = git_cache_get_raw(odb_cache(db), id)) != NULL) {
		git_odb_object_free(object);
		return (int)true;
	}

	for (i = 0; i < db->backends.length && !found; ++i) {
		backend_internal *internal = (backend_internal *) git_vector_get(&db->backends, i);
		git_odb_backend *b = internal->backend;

		if (b->exists != NULL)
			found = (bool)b->exists(b, id);
	}

	return (int)found;
}
Esempio n. 24
0
void test_odb_packed__read_header_1(void)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(loose_objects); ++i) {
		git_oid id;
		git_odb_object *obj;
		size_t len;
		git_otype type;

		cl_git_pass(git_oid_fromstr(&id, loose_objects[i]));

		cl_assert(git_odb_exists(_odb, &id) == 1);

		cl_git_pass(git_odb_read(&obj, _odb, &id));
		cl_git_pass(git_odb_read_header(&len, &type, _odb, &id));

		cl_assert(obj->raw.len == len);
		cl_assert(obj->raw.type == type);

		git_odb_object_free(obj);
	}
}
Esempio n. 25
0
int git_commit_extract_signature(git_buf *signature, git_buf *signed_data, git_repository *repo, git_oid *commit_id, const char *field)
{
	git_odb_object *obj;
	git_odb *odb;
	const char *buf;
	const char *h, *eol;
	int error;

	git_buf_clear(signature);
	git_buf_clear(signed_data);

	if (!field)
		field = "gpgsig";

	if ((error = git_repository_odb__weakptr(&odb, repo)) < 0)
		return error;

	if ((error = git_odb_read(&obj, odb, commit_id)) < 0)
		return error;

	if (obj->cached.type != GIT_OBJECT_COMMIT) {
		giterr_set(GITERR_INVALID, "the requested type does not match the type in ODB");
		error = GIT_ENOTFOUND;
		goto cleanup;
	}

	buf = git_odb_object_data(obj);

	while ((h = strchr(buf, '\n')) && h[1] != '\0') {
		h++;
		if (git__prefixcmp(buf, field)) {
			if (git_buf_put(signed_data, buf, h - buf) < 0)
				return -1;

			buf = h;
			continue;
		}

		h = buf;
		h += strlen(field);
		eol = strchr(h, '\n');
		if (h[0] != ' ') {
			buf = h;
			continue;
		}
		if (!eol)
			goto malformed;

		h++; /* skip the SP */

		git_buf_put(signature, h, eol - h);
		if (git_buf_oom(signature))
			goto oom;

		/* If the next line starts with SP, it's multi-line, we must continue */
		while (eol[1] == ' ') {
			git_buf_putc(signature, '\n');
			h = eol + 2;
			eol = strchr(h, '\n');
			if (!eol)
				goto malformed;

			git_buf_put(signature, h, eol - h);
		}

		if (git_buf_oom(signature))
			goto oom;

		error = git_buf_puts(signed_data, eol+1);
		git_odb_object_free(obj);
		return error;
	}

	giterr_set(GITERR_OBJECT, "this commit is not signed");
	error = GIT_ENOTFOUND;
	goto cleanup;

malformed:
	giterr_set(GITERR_OBJECT, "malformed header");
	error = -1;
	goto cleanup;
oom:
	giterr_set_oom();
	error = -1;
	goto cleanup;

cleanup:
	git_odb_object_free(obj);
	git_buf_clear(signature);
	git_buf_clear(signed_data);
	return error;
}
Esempio n. 26
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;
}
Esempio n. 27
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/* The wiki handler */
static int wiki_handler(request_rec *r)
{
    wiki_conf *conf;
    git_repository *repo;
    const git_oid *tree_oid;
    char *path;

    const git_oid *oid;
    char hash[41];
    hash[40] = '\0';
    int ret;
    int type;

    MMIOT *doc;

    if (strcmp(r->handler, "wiki")) {
        return DECLINED;
    }

    if (r->header_only) {
        return OK;
    }

    conf =
        (wiki_conf *) ap_get_module_config(r->per_dir_config,
                                           &wiki_module);

    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "filename=%s",
                  r->filename);
    if (conf->basepath) {
        path = ltrim(conf->basepath, r->parsed_uri.path);
    } else {
        path = r->parsed_uri.path + 1;
    }

    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "path=%s", path);
    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
                  "r->content_type=%s", r->content_type);

    if (conf->repo == NULL) {
        ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
                      "WikiRepository is not set.");
        return HTTP_INTERNAL_SERVER_ERROR;
    }
    ret = git_repository_open(&repo, conf->repo);
    if (ret) {
        ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
                      "Cannot open git repository.(%s)", conf->repo);
        return HTTP_INTERNAL_SERVER_ERROR;
    }

    tree_oid = lookup_master_tree(repo);
    if (tree_oid == NULL) {
        ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
                      "Not found master tree.");
        git_repository_free(repo);
    }

    type = lookup_object_oid(r, repo, tree_oid, path, &oid);
    if (type == WIKI_NOTFOUND) {
        ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
                      "Object is not found.");
        git_repository_free(repo);
        return HTTP_NOT_FOUND;
    } else if(type == WIKI_DIR) {
        ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
                      "Directory listing is not implement yet.");
        git_repository_free(repo);
        return HTTP_FORBIDDEN;
    } else if(type == WIKI_ERROR) {
        ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
                      "Error at lookup.");
        git_repository_free(repo);
        return HTTP_NOT_FOUND;
    }

    git_oid_fmt(hash, oid);
    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "object hash=%s", hash);

    const char *data;
    size_t size;

    git_odb *odb;
    ret = git_repository_odb(&odb, repo);
    git_odb_object *odb_object;
    ret = git_odb_read(&odb_object, odb, oid);
    data = git_odb_object_data(odb_object);
    size = git_odb_object_size(odb_object);

    git_odb_object_free(odb_object);	// is this safe?

    if (type == WIKI_FOUND) {
        ap_rwrite(data, size, r);
    } else if(type == WIKI_MARKDOWN) {
        r->content_type = "text/html";
        doc = mkd_string(data, size, 0);
        if (doc == NULL) {
            ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
                          "mkd_string() returned NULL\n");
            git_repository_free(repo);
            return HTTP_INTERNAL_SERVER_ERROR;
        }
        wiki_output(doc, r);
        mkd_cleanup(doc);
    } else {
        ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
                      "Unknown Error.\n");
        git_repository_free(repo);
        return HTTP_INTERNAL_SERVER_ERROR;
    }

    git_repository_free(repo);
    return OK;
}
Esempio n. 28
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int git_object_lookup_prefix(
	git_object **object_out,
	git_repository *repo,
	const git_oid *id,
	size_t len,
	git_otype type)
{
	git_object *object = NULL;
	git_odb *odb = NULL;
	git_odb_object *odb_obj = NULL;
	int error = 0;

	assert(repo && object_out && id);

	if (len < GIT_OID_MINPREFIXLEN) {
		giterr_set(GITERR_OBJECT, "Ambiguous lookup - OID prefix is too short");
		return GIT_EAMBIGUOUS;
	}

	error = git_repository_odb__weakptr(&odb, repo);
	if (error < 0)
		return error;

	if (len > GIT_OID_HEXSZ)
		len = GIT_OID_HEXSZ;

	if (len == GIT_OID_HEXSZ) {
		git_cached_obj *cached = NULL;

		/* We want to match the full id : we can first look up in the cache,
		 * since there is no need to check for non ambiguousity
		 */
		cached = git_cache_get_any(&repo->objects, id);
		if (cached != NULL) {
			if (cached->flags == GIT_CACHE_STORE_PARSED) {
				object = (git_object *)cached;

				if (type != GIT_OBJ_ANY && type != object->cached.type) {
					git_object_free(object);
					giterr_set(GITERR_INVALID,
						"The requested type does not match the type in ODB");
					return GIT_ENOTFOUND;
				}

				*object_out = object;
				return 0;
			} else if (cached->flags == GIT_CACHE_STORE_RAW) {
				odb_obj = (git_odb_object *)cached;
			} else {
				assert(!"Wrong caching type in the global object cache");
			}
		} else {
			/* Object was not found in the cache, let's explore the backends.
			 * We could just use git_odb_read_unique_short_oid,
			 * it is the same cost for packed and loose object backends,
			 * but it may be much more costly for sqlite and hiredis.
			 */
			error = git_odb_read(&odb_obj, odb, id);
		}
	} else {
		git_oid short_oid;

		/* We copy the first len*4 bits from id and fill the remaining with 0s */
		memcpy(short_oid.id, id->id, (len + 1) / 2);
		if (len % 2)
			short_oid.id[len / 2] &= 0xF0;
		memset(short_oid.id + (len + 1) / 2, 0, (GIT_OID_HEXSZ - len) / 2);

		/* If len < GIT_OID_HEXSZ (a strict short oid was given), we have
		 * 2 options :
		 * - We always search in the cache first. If we find that short oid is
		 *	ambiguous, we can stop. But in all the other cases, we must then
		 *	explore all the backends (to find an object if there was match,
		 *	or to check that oid is not ambiguous if we have found 1 match in
		 *	the cache)
		 * - We never explore the cache, go right to exploring the backends
		 * We chose the latter : we explore directly the backends.
		 */
		error = git_odb_read_prefix(&odb_obj, odb, &short_oid, len);
	}

	if (error < 0)
		return error;

	error = git_object__from_odb_object(object_out, repo, odb_obj, type);

	git_odb_object_free(odb_obj);

	return error;
}
Esempio n. 29
0
void git_blob__free(void *blob)
{
	git_odb_object_free(((git_blob *)blob)->odb_object);
	git__free(blob);
}
Esempio n. 30
0
/** Entry point for this command */
int main(int argc, char *argv[])
{
	git_repository *repo;
	struct opts o = { ".", NULL, 0, 0 };
	git_object *obj = NULL;
	char oidstr[GIT_OID_HEXSZ + 1];

	git_libgit2_init();

	parse_opts(&o, argc, argv);

	check_lg2(git_repository_open_ext(&repo, o.dir, 0, NULL),
			"Could not open repository", NULL);
	check_lg2(git_revparse_single(&obj, repo, o.rev),
			"Could not resolve", o.rev);

	if (o.verbose) {
		char oidstr[GIT_OID_HEXSZ + 1];
		git_oid_tostr(oidstr, sizeof(oidstr), git_object_id(obj));

		printf("%s %s\n--\n",
			git_object_type2string(git_object_type(obj)), oidstr);
	}

	switch (o.action) {
	case SHOW_TYPE:
		printf("%s\n", git_object_type2string(git_object_type(obj)));
		break;
	case SHOW_SIZE: {
		git_odb *odb;
		git_odb_object *odbobj;

		check_lg2(git_repository_odb(&odb, repo), "Could not open ODB", NULL);
		check_lg2(git_odb_read(&odbobj, odb, git_object_id(obj)),
			"Could not find obj", NULL);

		printf("%ld\n", (long)git_odb_object_size(odbobj));

		git_odb_object_free(odbobj);
		git_odb_free(odb);
		}
		break;
	case SHOW_NONE:
		/* just want return result */
		break;
	case SHOW_PRETTY:

		switch (git_object_type(obj)) {
		case GIT_OBJ_BLOB:
			show_blob((const git_blob *)obj);
			break;
		case GIT_OBJ_COMMIT:
			show_commit((const git_commit *)obj);
			break;
		case GIT_OBJ_TREE:
			show_tree((const git_tree *)obj);
			break;
		case GIT_OBJ_TAG:
			show_tag((const git_tag *)obj);
			break;
		default:
			printf("unknown %s\n", oidstr);
			break;
		}
		break;
	}

	git_object_free(obj);
	git_repository_free(repo);

	git_libgit2_shutdown();

	return 0;
}