[libgit2-glib] Add ggit_repository_delete_tagAdd ggit_repository_delete_tag

[Jesse van den Kieboom <jessevdk src gnome org>]

commit c1b1f34c363fcd6476deec06d2dcf8fcb8c7e558
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Tue Jun 24 16:22:12 2014 +0200

    Add ggit_repository_delete_tagAdd ggit_repository_delete_tag

 libgit2-glib/ggit-repository.c |   34 ++++++++++++++++++++++++++++++++++
 libgit2-glib/ggit-repository.h |    4 ++++
 2 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/libgit2-glib/ggit-repository.c b/libgit2-glib/ggit-repository.c
index 7669f2f..1eb6c0d 100644
--- a/libgit2-glib/ggit-repository.c
+++ b/libgit2-glib/ggit-repository.c
@@ -1367,6 +1367,40 @@ ggit_repository_list_tags (GgitRepository  *repository,
 }
 
 /**
+ * ggit_repository_delete_tag:
+ * @repository: a #GgitRepository.
+ * @name: the name of the tag.
+ * @error: a #GError.
+ *
+ * Delete an existing tag reference by name.
+ *
+ * Returns: %TRUE if the tag was deleted successfully, %FALSE otherwise.
+ **/
+gboolean
+ggit_repository_delete_tag (GgitRepository  *repository,
+                            gchar const     *name,
+                            GError         **error)
+{
+       gint ret;
+
+       g_return_val_if_fail (GGIT_IS_REPOSITORY (repository), FALSE);
+       g_return_val_if_fail (name != NULL, FALSE);
+       g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+       ret = git_tag_delete (_ggit_native_get (repository), name);
+
+       if (ret != GIT_OK)
+       {
+               _ggit_error_set (error, ret);
+               return FALSE;
+       }
+       else
+       {
+               return TRUE;
+       }
+}
+
+/**
  * ggit_repository_create_branch:
  * @repository: a #GgitRepository.
  * @branch_name: the name of the branch.
diff --git a/libgit2-glib/ggit-repository.h b/libgit2-glib/ggit-repository.h
index 5e443fc..dcf65f4 100644
--- a/libgit2-glib/ggit-repository.h
+++ b/libgit2-glib/ggit-repository.h
@@ -173,6 +173,10 @@ GgitOId            *ggit_repository_create_tag_lightweight (
                                                        GgitCreateFlags        flags,
                                                        GError               **error);
 
+gboolean            ggit_repository_delete_tag        (GgitRepository        *repository,
+                                                       const gchar           *name,
+                                                       GError               **error);
+
 GgitTreeBuilder    *ggit_repository_create_tree_builder_from_tree (
                                                        GgitRepository        *repository,
                                                        GgitTree              *tree,