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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 "GTReference.h"
#import "GTRepository.h"
#import "GTLib.h"
#import "NSString+Git.h"
#import "NSError+Git.h"
@implementation GTReference
- (void)dealloc {
self.repository = nil;
[super dealloc];
}
- (const git_oid *)oid {
return git_reference_oid(self.ref);
}
#pragma mark -
#pragma mark API
@synthesize ref;
@synthesize repository;
@synthesize type;
- (id)initByLookingUpReferenceNamed:(NSString *)refName inRepository:(GTRepository *)theRepo error:(NSError **)error {
if((self = [super init])) {
self.repository = theRepo;
int gitError = git_reference_lookup(&ref, self.repository.repo, [NSString utf8StringForString:refName]);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForLookupRef:gitError];
return nil;
}
}
return self;
}
+ (id)referenceByLookingUpReferencedNamed:(NSString *)refName inRepository:(GTRepository *)theRepo error:(NSError **)error {
return [[[self alloc] initByLookingUpReferenceNamed:refName inRepository:theRepo error:error] autorelease];
}
- (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_mkstr(&oid, [NSString utf8StringForString:theTarget]) == GIT_SUCCESS) {
gitError = git_reference_create_oid(&ref,
self.repository.repo,
[NSString utf8StringForString:refName],
&oid);
}
else {
gitError = git_reference_create_symbolic(&ref,
self.repository.repo,
[NSString utf8StringForString:refName],
[NSString utf8StringForString:theTarget]);
}
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForCreateRef:gitError];
return nil;
}
}
return self;
}
+ (id)referenceByCreatingReferenceNamed:(NSString *)refName fromReferenceTarget:(NSString *)target inRepository:(GTRepository *)theRepo error:(NSError **)error {
return [[[self alloc] initByCreatingReferenceNamed:refName fromReferenceTarget:target inRepository:theRepo error:error] autorelease];
}
- (id)initByResolvingSymbolicReference:(GTReference *)symbolicRef error:(NSError **)error {
if((self = [super init])) {
int gitError = git_reference_resolve(&ref, symbolicRef.ref);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForResloveRef:gitError];
return nil;
}
self.repository = symbolicRef.repository;
}
return self;
}
+ (id)referenceByResolvingSymbolicReference:(GTReference *)symbolicRef error:(NSError **)error {
return [[[self alloc] initByResolvingSymbolicReference:symbolicRef error:error] autorelease];
}
- (NSString *)name {
return [NSString stringForUTF8String:git_reference_name(self.ref)];
}
- (BOOL)setName:(NSString *)newName error:(NSError **)error {
int gitError = git_reference_rename(self.ref, [NSString utf8StringForString:newName]);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForRenameRef:gitError];
return NO;
}
return YES;
}
- (NSString *)type {
return [NSString stringForUTF8String:git_object_type2string(git_reference_type(self.ref))];
}
+ (NSArray *)referenceNamesInRepository:(GTRepository *)theRepo types:(GTReferenceTypes)types error:(NSError **)error {
NSParameterAssert(theRepo != nil);
NSParameterAssert(theRepo.repository != nil);
git_strarray array;
int gitError = git_reference_listall(&array, theRepo.repo, types);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForListAllRefs:gitError];
return nil;
}
NSMutableArray *references = [NSMutableArray arrayWithCapacity:array.count];
for(int i=0; i< array.count; i++) {
[references addObject:[NSString stringForUTF8String:array.strings[i]]];
}
return references;
}
+ (NSArray *)referenceNamesInRepository:(GTRepository *)theRepo error:(NSError **)error {
return [self referenceNamesInRepository:theRepo types:GTReferenceTypesListAll error:error];
}
- (NSString *)target {
if(git_reference_type(self.ref) == GIT_REF_OID) {
return [GTLib convertOidToSha:git_reference_oid(self.ref)];
}
else {
return [NSString stringForUTF8String:git_reference_target(self.ref)];
}
}
- (BOOL)setTarget:(NSString *)newTarget error:(NSError **)error {
int gitError;
if(git_reference_type(self.ref) == GIT_REF_OID) {
git_oid oid;
gitError = git_oid_mkstr(&oid, [NSString utf8StringForString:newTarget]);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForMkStr:gitError];
return NO;
}
gitError = git_reference_set_oid(self.ref, &oid);
}
else {
gitError = git_reference_set_target(self.ref, [NSString utf8StringForString:newTarget]);
}
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForSetRefTarget:gitError];
return NO;
}
return YES;
}
- (BOOL)packAllWithError:(NSError **)error {
int gitError = git_reference_packall(self.repository.repo);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForPackAllRefs:gitError];
return NO;
}
return YES;
}
- (BOOL)deleteWithError:(NSError **)error {
int gitError = git_reference_delete(self.ref);
if(gitError != GIT_SUCCESS) {
if(error != NULL)
*error = [NSError gitErrorForDeleteRef:gitError];
return NO;
}
self.ref = NULL; /* this has been free'd */
return YES;
}
- (GTReference *)resolvedReferenceWithError:(NSError **)error {
return [GTReference referenceByResolvingSymbolicReference:self error:error];
}
@end