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GTReference.m
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GTReference.m
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//
// GTReference.m
// ObjectiveGitFramework
//
// Created by Timothy Clem on 3/2/11.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import "dct_weak.h"
#import "GTReference.h"
#import "GTRepository.h"
#import "NSError+Git.h"
#import "NSString+Git.h"
@implementation GTReference
- (NSString *)description {
return [NSString stringWithFormat:@"<%@: %p> type: %@, repository: %@", NSStringFromClass([self class]), self, self.type, self.repository];
}
- (void)dealloc {
self.repository = nil;
if(self.git_reference != NULL) git_reference_free(self.git_reference);
}
#pragma mark API
@synthesize git_reference;
@synthesize repository;
+ (id)referenceByLookingUpReferencedNamed:(NSString *)refName inRepository:(GTRepository *)theRepo error:(NSError **)error {
return [[self alloc] initByLookingUpReferenceNamed:refName inRepository:theRepo error:error];
}
+ (id)referenceByCreatingReferenceNamed:(NSString *)refName fromReferenceTarget:(NSString *)target inRepository:(GTRepository *)theRepo error:(NSError **)error {
return [[self alloc] initByCreatingReferenceNamed:refName fromReferenceTarget:target inRepository:theRepo error:error];
}
+ (id)referenceByResolvingSymbolicReference:(GTReference *)symbolicRef error:(NSError **)error {
return [[self alloc] initByResolvingSymbolicReference:symbolicRef error:error];
}
- (id)initByLookingUpReferenceNamed:(NSString *)refName inRepository:(GTRepository *)theRepo error:(NSError **)error {
if((self = [super init])) {
self.repository = theRepo;
int gitError = git_reference_lookup(&git_reference, self.repository.git_repository, [refName UTF8String]);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to lookup reference."];
return nil;
}
}
return self;
}
- (id)initByCreatingReferenceNamed:(NSString *)refName fromReferenceTarget:(NSString *)theTarget inRepository:(GTRepository *)theRepo error:(NSError **)error {
if((self = [super init])) {
git_oid oid;
int gitError;
self.repository = theRepo;
if (git_oid_fromstr(&oid, [theTarget UTF8String]) == GIT_SUCCESS) {
gitError = git_reference_create_oid(&git_reference,
self.repository.git_repository,
[refName UTF8String],
&oid,
0);
}
else {
gitError = git_reference_create_symbolic(&git_reference,
self.repository.git_repository,
[refName UTF8String],
[theTarget UTF8String],
0);
}
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to create symbolic reference."];
return nil;
}
}
return self;
}
- (id)initByResolvingSymbolicReference:(GTReference *)symbolicRef error:(NSError **)error {
if((self = [super init])) {
int gitError = git_reference_resolve(&git_reference, symbolicRef.git_reference);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to resolve reference."];
return nil;
}
self.repository = symbolicRef.repository;
}
return self;
}
- (NSString *)name {
const char *refName = git_reference_name(self.git_reference);
if(refName == NULL) return nil;
return [NSString stringWithUTF8String:refName];
}
- (BOOL)setName:(NSString *)newName error:(NSError **)error {
int gitError = git_reference_rename(self.git_reference, [newName UTF8String], 0);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to rename reference."];
return NO;
}
return YES;
}
- (NSString *)type {
return [NSString stringWithUTF8String:git_object_type2string((git_otype)git_reference_type(self.git_reference))];
}
- (NSString *)target {
if(git_reference_type(self.git_reference) == GIT_REF_OID) {
return [NSString git_stringWithOid:git_reference_oid(self.git_reference)];
}
else {
return [NSString stringWithUTF8String:git_reference_target(self.git_reference)];
}
}
- (BOOL)setTarget:(NSString *)newTarget error:(NSError **)error {
int gitError;
if(git_reference_type(self.git_reference) == GIT_REF_OID) {
git_oid oid;
gitError = git_oid_fromstr(&oid, [newTarget UTF8String]);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorForMkStr:gitError];
return NO;
}
gitError = git_reference_set_oid(self.git_reference, &oid);
}
else {
gitError = git_reference_set_target(self.git_reference, [newTarget UTF8String]);
}
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to set reference target."];
return NO;
}
return YES;
}
- (BOOL)packAllWithError:(NSError **)error {
int gitError = git_reference_packall(self.repository.git_repository);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to pack all references in repo."];
return NO;
}
return YES;
}
- (BOOL)deleteWithError:(NSError **)error {
int gitError = git_reference_delete(self.git_reference);
if(gitError < GIT_SUCCESS) {
if(error != NULL)
*error = [NSError git_errorFor:gitError withDescription:@"Failed to delete reference."];
return NO;
}
self.git_reference = NULL; /* this has been free'd */
return YES;
}
- (GTReference *)resolvedReferenceWithError:(NSError **)error {
return [GTReference referenceByResolvingSymbolicReference:self error:error];
}
- (const git_oid *)oid {
return git_reference_oid(self.git_reference);
}
@end