Add -[GTBranch isHEAD]

Author: tiennou

ObjectiveGit/GTBranch.h

@@ -50,6 +50,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) GTBranchType branchType;
 @property (nonatomic, readonly, strong) GTRepository *repository;
 @property (nonatomic, readonly, strong) GTReference *reference;
+@property (nonatomic, readonly, getter=isHEAD) BOOL HEAD;
 
 + (NSString *)localNamePrefix;
 + (NSString *)remoteNamePrefix;

ObjectiveGit/GTBranch.m

@@ -152,6 +152,10 @@ - (GTBranchType)branchType {
 	}
 }
 
+- (BOOL)isHEAD {
+	return (git_branch_is_head(self.reference.git_reference) ? YES : NO);
+}
+
 - (NSArray *)uniqueCommitsRelativeToBranch:(GTBranch *)otherBranch error:(NSError **)error {
 	GTEnumerator *enumerator = [self.repository enumeratorForUniqueCommitsFromOID:self.OID relativeToOID:otherBranch.OID error:error];
 	return [enumerator allObjectsWithError:error];