int git_branch_tracking(
git_reference **tracking_out,
git_reference *branch)
{
const char *remote_name, *merge_name;
git_buf buf = GIT_BUF_INIT;
int error = -1;
git_remote *remote = NULL;
const git_refspec *refspec;
assert(tracking_out && branch);
if (!git_reference_is_branch(branch))
return not_a_local_branch(branch);
if ((error = retrieve_tracking_configuration(&remote_name, branch, "branch.%s.remote")) < 0)
goto cleanup;
if ((error = retrieve_tracking_configuration(&merge_name, branch, "branch.%s.merge")) < 0)
goto cleanup;
if (strcmp(".", remote_name) != 0) {
if ((error = git_remote_load(&remote, git_reference_owner(branch), remote_name)) < 0)
goto cleanup;
refspec = git_remote_fetchspec(remote);
if (refspec == NULL
|| refspec->src == NULL
|| refspec->dst == NULL) {
error = GIT_ENOTFOUND;
goto cleanup;
}
if (git_refspec_transform_r(&buf, refspec, merge_name) < 0)
goto cleanup;
} else
if (git_buf_sets(&buf, merge_name) < 0)
goto cleanup;
error = git_reference_lookup(
tracking_out,
git_reference_owner(branch),
git_buf_cstr(&buf));
cleanup:
git_remote_free(remote);
git_buf_free(&buf);
return error;
}
/*
* call-seq:
* reference.log -> [reflog_entry, ...]
*
* Return an array with the log of all modifications to this reference
*
* Each +reflog_entry+ is a hash with the following keys:
*
* - +:id_old+: previous OID before the change
* - +:id_new+: OID after the change
* - +:committer+: author of the change
* - +:message+: message for the change
*
* Example:
*
* reference.log #=> [
* # {
* # :id_old => nil,
* # :id_new => '9d09060c850defbc7711d08b57def0d14e742f4e',
* # :committer => {:name => 'Vicent Marti', :email => {'*****@*****.**'}},
* # :message => 'created reference'
* # }, ... ]
*/
static VALUE rb_git_reflog(VALUE self)
{
git_reflog *reflog;
git_reference *ref;
int error;
VALUE rb_log;
size_t i, ref_count;
Data_Get_Struct(self, git_reference, ref);
error = git_reflog_read(&reflog, git_reference_owner(ref), git_reference_name(ref));
rugged_exception_check(error);
ref_count = git_reflog_entrycount(reflog);
rb_log = rb_ary_new2(ref_count);
for (i = 0; i < ref_count; ++i) {
const git_reflog_entry *entry =
git_reflog_entry_byindex(reflog, ref_count - i - 1);
rb_ary_push(rb_log, reflog_entry_new(entry));
}
git_reflog_free(reflog);
return rb_log;
}
/**
* ggit_ref_get_log:
* @ref: a #GgitRef.
* @error: a #GError for error reporting, or %NULL.
*
* Gets the #GgitReflog for @ref. The reflog will be created if it doesn't exist
* yet.
*
* Returns: (transfer full): the reflog.
*/
GgitReflog *
ggit_ref_get_log (GgitRef *ref,
GError **error)
{
git_reflog *reflog;
git_reference *nref;
gint ret;
g_return_val_if_fail (GGIT_IS_REF (ref), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
nref = _ggit_native_get (ref);
ret = git_reflog_read (&reflog,
git_reference_owner (nref),
git_reference_name (nref));
if (ret != GIT_OK)
{
_ggit_error_set (error, ret);
return NULL;
}
return _ggit_reflog_wrap (ref, reflog);
}
int
Reference_oid__set__(Reference *self, PyObject *py_hex)
{
git_oid oid;
int err;
git_reference *new_ref;
CHECK_REFERENCE_INT(self);
/* Get the oid */
err = py_str_to_git_oid_expand(git_reference_owner(self->reference),
py_hex, &oid);
if (err < 0) {
Error_set(err);
return -1;
}
/* Set the oid */
err = git_reference_set_target(&new_ref, self->reference, &oid);
if (err < 0) {
Error_set(err);
return -1;
}
git_reference_free(self->reference);
self->reference = new_ref;
return 0;
}
int git_branch_is_head(
git_reference *branch)
{
git_reference *head;
bool is_same = false;
int error;
assert(branch);
if (!git_reference_is_branch(branch))
return false;
error = git_repository_head(&head, git_reference_owner(branch));
if (error == GIT_EORPHANEDHEAD)
return false;
if (error < 0)
return -1;
is_same = strcmp(
git_reference_name(branch),
git_reference_name(head)) == 0;
git_reference_free(head);
return is_same;
}
static int reference__rename(git_reference **out, git_reference *ref, const char *new_name, int force,
const git_signature *signature, const char *message)
{
git_refname_t normalized;
bool should_head_be_updated = false;
int error = 0;
assert(ref && new_name && signature);
if ((error = reference_normalize_for_repo(
normalized, git_reference_owner(ref), new_name)) < 0)
return error;
/* Check if we have to update HEAD. */
if ((error = git_branch_is_head(ref)) < 0)
return error;
should_head_be_updated = (error > 0);
if ((error = git_refdb_rename(out, ref->db, ref->name, normalized, force, signature, message)) < 0)
return error;
/* Update HEAD it was pointing to the reference being renamed */
if (should_head_be_updated &&
(error = git_repository_set_head(ref->db->repo, normalized)) < 0) {
giterr_set(GITERR_REFERENCE, "Failed to update HEAD after renaming reference");
return error;
}
return 0;
}
/**
* ggit_reflog_rename:
* @reflog: a #GgitReflog.
* @new_name: the new name of the reference.
* @error: a #GError for error reporting, or %NULL.
*
* Renames the reflog for to @new_name, on error @error is set.
*/
gboolean
ggit_reflog_rename (GgitReflog *reflog,
const gchar *new_name,
GError **error)
{
git_reference *nref;
gint ret;
g_return_val_if_fail (reflog != NULL, FALSE);
g_return_val_if_fail (new_name != NULL && *new_name != '\0', FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
nref = _ggit_native_get (reflog->ref);
ret = git_reflog_rename (git_reference_owner (nref),
git_reference_name (nref),
new_name);
if (ret != GIT_OK)
{
_ggit_error_set (error, ret);
return FALSE;
}
return TRUE;
}
int git_branch_is_head(
const git_reference *branch)
{
git_reference *head;
bool is_same = false;
int error;
assert(branch);
if (!git_reference_is_branch(branch))
return false;
error = git_repository_head(&head, git_reference_owner(branch));
if (error == GIT_EUNBORNBRANCH || error == GIT_ENOTFOUND)
return false;
if (error < 0)
return -1;
is_same = strcmp(
git_reference_name(branch),
git_reference_name(head)) == 0;
git_reference_free(head);
return is_same;
}
/**
* ggit_ref_get_owner:
* @ref: a #GgitRef.
*
* Gets the repository where @ref resides.
*
* Returns: (transfer full): the repository where a reference resides.
*/
GgitRepository *
ggit_ref_get_owner (GgitRef *ref)
{
g_return_val_if_fail (ref != NULL, NULL);
return _ggit_repository_wrap (git_reference_owner (_ggit_native_get (ref)),
FALSE);
}
int git_reference_peel(
git_object **peeled,
git_reference *ref,
git_otype target_type)
{
git_reference *resolved = NULL;
git_object *target = NULL;
int error;
assert(ref);
if (ref->type == GIT_REF_OID) {
resolved = ref;
} else {
if ((error = git_reference_resolve(&resolved, ref)) < 0)
return peel_error(error, ref, "Cannot resolve reference");
}
if (!git_oid_iszero(&resolved->peel)) {
error = git_object_lookup(&target,
git_reference_owner(ref), &resolved->peel, GIT_OBJ_ANY);
} else {
error = git_object_lookup(&target,
git_reference_owner(ref), &resolved->target.oid, GIT_OBJ_ANY);
}
if (error < 0) {
peel_error(error, ref, "Cannot retrieve reference target");
goto cleanup;
}
if (target_type == GIT_OBJ_ANY && git_object_type(target) != GIT_OBJ_TAG)
error = git_object_dup(peeled, target);
else
error = git_object_peel(peeled, target, target_type);
cleanup:
git_object_free(target);
if (resolved != ref)
git_reference_free(resolved);
return error;
}
int git_branch_upstream(
git_reference **tracking_out,
const git_reference *branch)
{
int error;
git_buf tracking_name = GIT_BUF_INIT;
if ((error = git_branch_upstream_name(&tracking_name,
git_reference_owner(branch), git_reference_name(branch))) < 0)
return error;
error = git_reference_lookup(
tracking_out,
git_reference_owner(branch),
git_buf_cstr(&tracking_name));
git_buf_free(&tracking_name);
return error;
}
/*
* call-seq:
* reference.log? -> true or false
*
* Return +true+ if the reference has a reflog, +false+ otherwise.
*/
static VALUE rb_git_has_reflog(VALUE self)
{
git_reference *ref;
git_repository *repo;
Data_Get_Struct(self, git_reference, ref);
repo = git_reference_owner(ref);
return git_reference_has_log(repo, git_reference_name(ref)) ? Qtrue : Qfalse;
}
/**
* ggit_ref_has_log:
* @ref: a #GgitRef.
*
* Get whether @ref has an existing log.
*
* Returns: %TRUE if @ref has a log, %FALSE otherwise.
*
**/
gboolean
ggit_ref_has_log (GgitRef *ref)
{
git_reference *nref;
g_return_val_if_fail (GGIT_IS_REF (ref), FALSE);
nref = _ggit_native_get (ref);
return git_reference_has_log (git_reference_owner (nref),
git_reference_name (nref)) == 1;
}
static int retrieve_oid_from_reflog(git_oid *oid, git_reference *ref, size_t identifier)
{
git_reflog *reflog;
int error = -1;
size_t numentries;
const git_reflog_entry *entry;
bool search_by_pos = (identifier <= 100000000);
if (git_reflog_read(&reflog, git_reference_owner(ref), git_reference_name(ref)) < 0)
return -1;
numentries = git_reflog_entrycount(reflog);
if (search_by_pos) {
if (numentries < identifier + 1) {
giterr_set(
GITERR_REFERENCE,
"Reflog for '%s' has only %"PRIuZ" entries, asked for %"PRIuZ,
git_reference_name(ref), numentries, identifier);
error = GIT_ENOTFOUND;
goto cleanup;
}
entry = git_reflog_entry_byindex(reflog, identifier);
git_oid_cpy(oid, git_reflog_entry_id_new(entry));
error = 0;
goto cleanup;
} else {
size_t i;
git_time commit_time;
for (i = 0; i < numentries; i++) {
entry = git_reflog_entry_byindex(reflog, i);
commit_time = git_reflog_entry_committer(entry)->when;
if (commit_time.time > (git_time_t)identifier)
continue;
git_oid_cpy(oid, git_reflog_entry_id_new(entry));
error = 0;
goto cleanup;
}
error = GIT_ENOTFOUND;
}
cleanup:
git_reflog_free(reflog);
return error;
}
/*
* call-seq:
* reference.target_id -> id
* reference.target_id -> ref_name
*
* Return the target of +reference+.
*
* If +reference+ is a symbolic reference, it returns the target
* reference object.
*
* If +reference+ is a direct reference, it returns the target object.
*
* ref1.type #=> :symbolic
* ref1.target #=> #<Rugged::Reference ...>
*
* ref2.type #=> :direct
* ref2.target #=> #<Rugged::Commit ...>
*/
static VALUE rb_git_ref_target(VALUE self)
{
git_reference *ref;
Data_Get_Struct(self, git_reference, ref);
if (git_reference_type(ref) == GIT_REF_OID) {
git_object *target;
rugged_exception_check(
git_object_lookup(&target, git_reference_owner(ref), git_reference_target(ref), GIT_OBJ_ANY)
);
return rugged_object_new(rugged_owner(self), target);
} else {
git_reference *target;
rugged_exception_check(
git_reference_lookup(&target, git_reference_owner(ref), git_reference_symbolic_target(ref))
);
return rugged_ref_new(rb_cRuggedReference, rugged_owner(self), target);
}
}
int git_branch_move(
git_reference **out,
git_reference *branch,
const char *new_branch_name,
int force)
{
git_buf new_reference_name = GIT_BUF_INIT,
old_config_section = GIT_BUF_INIT,
new_config_section = GIT_BUF_INIT,
log_message = GIT_BUF_INIT;
int error;
assert(branch && new_branch_name);
if (!git_reference_is_branch(branch))
return not_a_local_branch(git_reference_name(branch));
if ((error = git_buf_joinpath(&new_reference_name, GIT_REFS_HEADS_DIR, new_branch_name)) < 0)
goto done;
if ((error = git_buf_printf(&log_message, "branch: renamed %s to %s",
git_reference_name(branch), git_buf_cstr(&new_reference_name))) < 0)
goto done;
/* first update ref then config so failure won't trash config */
error = git_reference_rename(
out, branch, git_buf_cstr(&new_reference_name), force,
git_buf_cstr(&log_message));
if (error < 0)
goto done;
git_buf_join(&old_config_section, '.', "branch",
git_reference_name(branch) + strlen(GIT_REFS_HEADS_DIR));
git_buf_join(&new_config_section, '.', "branch", new_branch_name);
error = git_config_rename_section(
git_reference_owner(branch),
git_buf_cstr(&old_config_section),
git_buf_cstr(&new_config_section));
done:
git_buf_free(&new_reference_name);
git_buf_free(&old_config_section);
git_buf_free(&new_config_section);
git_buf_free(&log_message);
return error;
}
int git_reference_rename(
git_reference **out,
git_reference *ref,
const char *new_name,
int force)
{
unsigned int normalization_flags;
char normalized[GIT_REFNAME_MAX];
bool should_head_be_updated = false;
int error = 0;
int reference_has_log;
normalization_flags = ref->type == GIT_REF_SYMBOLIC ?
GIT_REF_FORMAT_ALLOW_ONELEVEL : GIT_REF_FORMAT_NORMAL;
if ((error = git_reference_normalize_name(
normalized, sizeof(normalized), new_name, normalization_flags)) < 0)
return error;
/* Check if we have to update HEAD. */
if ((error = git_branch_is_head(ref)) < 0)
return error;
should_head_be_updated = (error > 0);
if ((error = git_refdb_rename(out, ref->db, ref->name, new_name, force)) < 0)
return error;
/* Update HEAD it was poiting to the reference being renamed. */
if (should_head_be_updated &&
(error = git_repository_set_head(ref->db->repo, new_name)) < 0) {
giterr_set(GITERR_REFERENCE, "Failed to update HEAD after renaming reference");
return error;
}
/* Rename the reflog file, if it exists. */
reference_has_log = git_reference_has_log(ref);
if (reference_has_log < 0)
return reference_has_log;
if (reference_has_log && (error = git_reflog_rename(git_reference_owner(ref), git_reference_name(ref), new_name)) < 0)
return error;
return 0;
}
static int retrieve_tracking_configuration(
const char **out, git_reference *branch, const char *format)
{
git_config *config;
git_buf buf = GIT_BUF_INIT;
int error;
if (git_repository_config__weakptr(&config, git_reference_owner(branch)) < 0)
return -1;
if (git_buf_printf(&buf, format,
git_reference_name(branch) + strlen(GIT_REFS_HEADS_DIR)) < 0)
return -1;
error = git_config_get_string(out, config, git_buf_cstr(&buf));
git_buf_free(&buf);
return error;
}
int reference_is_packed(git_reference *ref)
{
git_buf ref_path = GIT_BUF_INIT;
int packed;
assert(ref);
if (git_buf_joinpath(&ref_path,
git_repository_path(git_reference_owner(ref)),
git_reference_name(ref)) < 0)
return -1;
packed = !git_path_isfile(ref_path.ptr);
git_buf_free(&ref_path);
return packed;
}
int git_branch_move(
git_reference *branch,
const char *new_branch_name,
int force)
{
git_buf new_reference_name = GIT_BUF_INIT,
old_config_section = GIT_BUF_INIT,
new_config_section = GIT_BUF_INIT;
int error;
assert(branch && new_branch_name);
if (!git_reference_is_branch(branch))
return not_a_local_branch(branch);
if ((error = git_buf_joinpath(&new_reference_name, GIT_REFS_HEADS_DIR, new_branch_name)) < 0)
goto cleanup;
if (git_buf_printf(
&old_config_section,
"branch.%s",
git_reference_name(branch) + strlen(GIT_REFS_HEADS_DIR)) < 0)
goto cleanup;
if ((error = git_reference_rename(branch, git_buf_cstr(&new_reference_name), force)) < 0)
goto cleanup;
if (git_buf_printf(&new_config_section, "branch.%s", new_branch_name) < 0)
goto cleanup;
if ((error = git_config_rename_section(
git_reference_owner(branch),
git_buf_cstr(&old_config_section),
git_buf_cstr(&new_config_section))) < 0)
goto cleanup;
cleanup:
git_buf_free(&new_reference_name);
git_buf_free(&old_config_section);
git_buf_free(&new_config_section);
return error;
}
/**
* ggit_ref_delete_log:
* @ref: a #GgitRef.
* @error: a #GError for error reporting, or %NULL.
*
* Deletes the log for @ref, on error @error is set.
*/
void
ggit_ref_delete_log (GgitRef *ref,
GError **error)
{
git_reference *nref;
gint ret;
g_return_if_fail (GGIT_IS_REF (ref));
g_return_if_fail (error == NULL || *error == NULL);
nref = _ggit_native_get (ref);
ret = git_reflog_delete (git_reference_owner (nref),
git_reference_name (nref));
if (ret != GIT_OK)
{
_ggit_error_set (error, ret);
}
}
int git_branch_delete(git_reference *branch)
{
int is_head;
git_buf config_section = GIT_BUF_INIT;
int error = -1;
assert(branch);
if (!git_reference_is_branch(branch) &&
!git_reference_is_remote(branch)) {
giterr_set(GITERR_INVALID, "Reference '%s' is not a valid branch.", git_reference_name(branch));
return -1;
}
if ((is_head = git_branch_is_head(branch)) < 0)
return is_head;
if (is_head) {
giterr_set(GITERR_REFERENCE,
"Cannot delete branch '%s' as it is the current HEAD of the repository.", git_reference_name(branch));
return -1;
}
if (git_buf_printf(&config_section, "branch.%s", git_reference_name(branch) + strlen(GIT_REFS_HEADS_DIR)) < 0)
goto on_error;
if (git_config_rename_section(
git_reference_owner(branch),
git_buf_cstr(&config_section),
NULL) < 0)
goto on_error;
if (git_reference_delete(branch) < 0)
goto on_error;
error = 0;
on_error:
git_buf_free(&config_section);
return error;
}
PyObject *
Reference_log(Reference *self)
{
int err;
RefLogIter *iter;
git_repository *repo;
CHECK_REFERENCE(self);
repo = git_reference_owner(self->reference);
iter = PyObject_New(RefLogIter, &RefLogIterType);
if (iter != NULL) {
err = git_reflog_read(&iter->reflog, repo, git_reference_name(self->reference));
if (err < 0)
return Error_set(err);
iter->size = git_reflog_entrycount(iter->reflog);
iter->i = 0;
}
return (PyObject*)iter;
}
static int reference__rename(git_reference **out, git_reference *ref, const char *new_name, int force,
const git_signature *signature, const char *message)
{
git_repository *repo;
git_refname_t normalized;
bool should_head_be_updated = false;
int error = 0;
assert(ref && new_name && signature);
repo = git_reference_owner(ref);
if ((error = reference_normalize_for_repo(
normalized, repo, new_name, true)) < 0)
return error;
/* Check if we have to update HEAD. */
if ((error = git_branch_is_head(ref)) < 0)
return error;
should_head_be_updated = (error > 0);
if ((error = git_refdb_rename(out, ref->db, ref->name, normalized, force, signature, message)) < 0)
return error;
/* Update HEAD if it was pointing to the reference being renamed */
if (should_head_be_updated) {
error = git_repository_set_head(ref->db->repo, normalized);
} else {
rename_cb_data payload;
payload.old_name = ref->name;
memcpy(&payload.new_name, &normalized, sizeof(normalized));
error = git_repository_foreach_head(repo, update_wt_heads, &payload);
}
return error;
}
/**
* ggit_ref_lookup:
* @ref: a #GgitRef.
* @error: a #GError for error reporting, or %NULL.
*
* Convenient method to resolve a reference to an object.
*
* Returns: (transfer full): a #GgitObject.
*
**/
GgitObject *
ggit_ref_lookup (GgitRef *ref,
GError **error)
{
git_object *obj;
git_reference *r;
gint ret;
GgitRef *lref;
g_return_val_if_fail (GGIT_IS_REF (ref), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
lref = ggit_ref_resolve (ref, error);
if (lref == NULL)
{
return NULL;
}
r = _ggit_native_get (lref);
ret = git_object_lookup (&obj,
git_reference_owner (r),
git_reference_target (r),
GIT_OBJ_ANY);
g_object_unref (lref);
if (ret != GIT_OK)
{
_ggit_error_set (error, ret);
return NULL;
}
return ggit_utils_create_real_object (obj, TRUE);
}
int git_branch_set_upstream(git_reference *branch, const char *upstream_name)
{
git_buf key = GIT_BUF_INIT, value = GIT_BUF_INIT;
git_reference *upstream;
git_repository *repo;
git_remote *remote = NULL;
git_config *config;
const char *name, *shortname;
int local, error;
const git_refspec *fetchspec;
name = git_reference_name(branch);
if (!git_reference__is_branch(name))
return not_a_local_branch(name);
if (git_repository_config__weakptr(&config, git_reference_owner(branch)) < 0)
return -1;
shortname = name + strlen(GIT_REFS_HEADS_DIR);
if (upstream_name == NULL)
return unset_upstream(config, shortname);
repo = git_reference_owner(branch);
/* First we need to figure out whether it's a branch or remote-tracking */
if (git_branch_lookup(&upstream, repo, upstream_name, GIT_BRANCH_LOCAL) == 0)
local = 1;
else if (git_branch_lookup(&upstream, repo, upstream_name, GIT_BRANCH_REMOTE) == 0)
local = 0;
else {
giterr_set(GITERR_REFERENCE,
"Cannot set upstream for branch '%s'", shortname);
return GIT_ENOTFOUND;
}
/*
* If it's local, the remote is "." and the branch name is
* simply the refname. Otherwise we need to figure out what
* the remote-tracking branch's name on the remote is and use
* that.
*/
if (local)
error = git_buf_puts(&value, ".");
else
error = git_branch_remote_name(&value, repo, git_reference_name(upstream));
if (error < 0)
goto on_error;
if (git_buf_printf(&key, "branch.%s.remote", shortname) < 0)
goto on_error;
if (git_config_set_string(config, git_buf_cstr(&key), git_buf_cstr(&value)) < 0)
goto on_error;
if (local) {
git_buf_clear(&value);
if (git_buf_puts(&value, git_reference_name(upstream)) < 0)
goto on_error;
} else {
/* Get the remoe-tracking branch's refname in its repo */
if (git_remote_lookup(&remote, repo, git_buf_cstr(&value)) < 0)
goto on_error;
fetchspec = git_remote__matching_dst_refspec(remote, git_reference_name(upstream));
git_buf_clear(&value);
if (!fetchspec || git_refspec_rtransform(&value, fetchspec, git_reference_name(upstream)) < 0)
goto on_error;
git_remote_free(remote);
remote = NULL;
}
git_buf_clear(&key);
if (git_buf_printf(&key, "branch.%s.merge", shortname) < 0)
goto on_error;
if (git_config_set_string(config, git_buf_cstr(&key), git_buf_cstr(&value)) < 0)
goto on_error;
git_reference_free(upstream);
git_buf_free(&key);
git_buf_free(&value);
return 0;
on_error:
git_reference_free(upstream);
git_buf_free(&key);
git_buf_free(&value);
git_remote_free(remote);
return -1;
}
Repository Reference::owner() const
{
return Repository(git_reference_owner(d.data()));
}
