Add Cherry Pick to contextual menu for commits.

PBGitRepository.h

@@ -32,6 +32,7 @@ extern NSString* PBGitRepositoryErrorDomain;
 - (BOOL) checkoutRefish:(id <PBGitRefish>)ref;
 - (BOOL) checkoutFiles:(NSArray *)files fromRefish:(id <PBGitRefish>)ref;
 - (BOOL) mergeWithRefish:(id <PBGitRefish>)ref;
+- (BOOL) cherryPickRefish:(id <PBGitRefish>)ref;
 - (BOOL) createBranch:(NSString *)branchName atRefish:(id <PBGitRefish>)ref;
 - (BOOL) createTag:(NSString *)tagName message:(NSString *)message atRefish:(id <PBGitRefish>)commitSHA;
 - (BOOL) deleteRef:(PBGitRef *)ref;

PBGitRepository.m

@@ -494,6 +494,27 @@ NSString* PBGitRepositoryErrorDomain = @"GitXErrorDomain";
 	return YES;
 }
 
+- (BOOL) cherryPickRefish:(id <PBGitRefish>)ref
+{
+	if (!ref)
+		return NO;
+
+	NSString *refName = [ref refishName];
+
+	int retValue = 1;
+	NSArray *arguments = [NSArray arrayWithObjects:@"cherry-pick", refName, nil];
+	NSString *output = [self outputInWorkdirForArguments:arguments retValue:&retValue];
+	if (retValue) {
+		NSString *message = [NSString stringWithFormat:@"There was an error cherry picking the %@ '%@'.\n\nPerhaps your working directory is not clean?", [ref refishType], [ref shortName]];
+		[self.windowController showErrorSheetTitle:@"Cherry pick failed!" message:message arguments:arguments output:output];
+		return NO;
+	}
+
+	[self reloadRefs];
+	[self readCurrentBranch];
+	return YES;
+}
+
 - (BOOL) createBranch:(NSString *)branchName atRefish:(id <PBGitRefish>)ref
 {
 	if (!branchName || !ref)

PBRefController.h

@@ -25,6 +25,7 @@
 
 - (void) checkout:(PBRefMenuItem *)sender;
 - (void) merge:(PBRefMenuItem *)sender;
+- (void) cherryPick:(PBRefMenuItem *)sender;
 - (void) createBranch:(PBRefMenuItem *)sender;
 - (void) copySHA:(PBRefMenuItem *)sender;
 - (void) copyPatch:(PBRefMenuItem *)sender;

PBRefController.m

@@ -57,6 +57,15 @@
 }
 
 
+#pragma mark Cherry Pick
+
+- (void) cherryPick:(PBRefMenuItem *)sender
+{
+	id <PBGitRefish> refish = [sender refish];
+	[historyController.repository cherryPickRefish:refish];
+}
+
+
 #pragma mark Create Branch
 
 - (void) createBranch:(PBRefMenuItem *)sender

PBRefMenuItem.m

@@ -102,6 +102,10 @@
 	NSString *mergeTitle = isOnHeadBranch ? @"Merge commit" : [NSString stringWithFormat:@"Merge commit into %@", headBranchName];
 	[items addObject:[PBRefMenuItem itemWithTitle:mergeTitle action:@selector(merge:) enabled:!isOnHeadBranch]];
 
+	// cherry pick
+	NSString *cherryPickTitle = isOnHeadBranch ? @"Cherry pick commit" : [NSString stringWithFormat:@"Cherry pick commit to %@", headBranchName];
+	[items addObject:[PBRefMenuItem itemWithTitle:cherryPickTitle action:@selector(cherryPick:) enabled:!isOnHeadBranch]];
+
 	for (PBRefMenuItem *item in items) {
 		[item setTarget:target];
 		[item setRefish:commit];