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revparse: deploy git_object_peel()

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This commit is contained in:
nulltoken 2012-07-15 11:59:31 +02:00
parent db9be9457d
commit e2c81fca8f
1 changed files with 4 additions and 55 deletions
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59
src/revparse.c
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@ -382,57 +382,6 @@ cleanup:
return error; return error;
} }
static int dereference_object(git_object **dereferenced, git_object *obj)
{
git_otype type = git_object_type(obj);
switch (type) {
case GIT_OBJ_COMMIT:
return git_commit_tree((git_tree **)dereferenced, (git_commit*)obj);
break;
case GIT_OBJ_TAG:
return git_tag_target(dereferenced, (git_tag*)obj);
break;
default:
return GIT_ENOTFOUND;
break;
}
}
static int dereference_to_type(git_object **out, git_object *obj, git_otype target_type)
{
git_object *source, *deref = NULL;
if (git_object_type(obj) == target_type)
return git_object_lookup(out, git_object_owner(obj), git_object_id(obj), target_type);
source = obj;
while (true) {
if (dereference_object(&deref, source) < 0)
goto cleanup;
if (source != obj)
git_object_free(source);
if (git_object_type(deref) == target_type) {
*out = deref;
return 0;
}
source = deref;
deref = NULL;
}
cleanup:
if (source != obj)
git_object_free(source);
git_object_free(deref);
return -1;
}
static git_otype parse_obj_type(const char *str) static git_otype parse_obj_type(const char *str)
{ {
if (!strcmp(str, "commit")) if (!strcmp(str, "commit"))
@ -463,7 +412,7 @@ static int handle_caret_parent_syntax(git_object **out, git_object *obj, int n)
git_object *temp_commit = NULL; git_object *temp_commit = NULL;
int error; int error;
if (dereference_to_type(&temp_commit, obj, GIT_OBJ_COMMIT) < 0) if (git_object_peel(&temp_commit, obj, GIT_OBJ_COMMIT) < 0)
return -1; return -1;
if (n == 0) { if (n == 0) {
@ -482,7 +431,7 @@ static int handle_linear_syntax(git_object **out, git_object *obj, int n)
git_object *temp_commit = NULL; git_object *temp_commit = NULL;
int error; int error;
if (dereference_to_type(&temp_commit, obj, GIT_OBJ_COMMIT) < 0) if (git_object_peel(&temp_commit, obj, GIT_OBJ_COMMIT) < 0)
return -1; return -1;
error = git_commit_nth_gen_ancestor((git_commit **)out, (git_commit*)temp_commit, n); error = git_commit_nth_gen_ancestor((git_commit **)out, (git_commit*)temp_commit, n);
@ -500,7 +449,7 @@ static int handle_colon_syntax(
int error = -1; int error = -1;
git_tree_entry *entry = NULL; git_tree_entry *entry = NULL;
if (dereference_to_type(&tree, obj, GIT_OBJ_TREE) < 0) if (git_object_peel(&tree, obj, GIT_OBJ_TREE) < 0)
return -1; return -1;
if (*path == '\0') { if (*path == '\0') {
@ -595,7 +544,7 @@ static int handle_caret_curly_syntax(git_object **out, git_object *obj, const ch
if (expected_type == GIT_OBJ_BAD) if (expected_type == GIT_OBJ_BAD)
return -1; return -1;
return dereference_to_type(out, obj, expected_type); return git_object_peel(out, obj, expected_type);
} }
static int extract_curly_braces_content(git_buf *buf, const char *spec, int *pos) static int extract_curly_braces_content(git_buf *buf, const char *spec, int *pos)