PBGitRepository: add a handle for in-worktree-commands

PBGitCommitController.h

@@ -14,4 +14,5 @@
 	NSArray *cachedFiles;
 }
 
+@property (retain) NSArray *unstagedFiles, *cachedFiles;
 @end

PBGitRepository.h

@@ -21,6 +21,7 @@ extern NSString* PBGitRepositoryErrorDomain;
 
 - (NSFileHandle*) handleForCommand:(NSString*) cmd;
 - (NSFileHandle*) handleForArguments:(NSArray*) args;
+- (NSFileHandle *) handleInWorkDirForArguments:(NSArray *)args;
 - (NSString*) outputForCommand:(NSString*) cmd;
 - (NSString*) outputForCommand:(NSString *)str retValue:(int *)ret;
 - (NSString*) outputForArguments:(NSArray*) args;

PBGitRepository.m

@@ -257,6 +257,22 @@ - (void) readCurrentBranch
 		[self selectBranch: [self addBranch: [self headRef]]];
 }
 
+- (NSString *) workingDirectory
+{
+	if ([self.fileURL.path hasSuffix:@"/.git"])
+		return [self.fileURL.path substringToIndex:[self.fileURL.path length] - 5];
+	else if ([[self outputForCommand:@"rev-parse --is-inside-work-tree"] isEqualToString:@"true"])
+		return gitPath;
+
+	return nil;
+}		
+
+- (int) returnValueForCommand:(NSString *)cmd
+{
+	int i;
+	[self outputForCommand:cmd retValue: &i];
+	return i;
+}
 
 - (NSFileHandle*) handleForArguments:(NSArray *)args
 {
@@ -266,6 +282,14 @@ - (NSFileHandle*) handleForArguments:(NSArray *)args
 	return [PBEasyPipe handleForCommand:gitPath withArgs:arguments];
 }
 
+- (NSFileHandle*) handleInWorkDirForArguments:(NSArray *)args
+{
+	NSString* gitDirArg = [@"--git-dir=" stringByAppendingString:self.fileURL.path];
+	NSMutableArray* arguments =  [NSMutableArray arrayWithObject: gitDirArg];
+	[arguments addObjectsFromArray: args];
+	return [PBEasyPipe handleForCommand:gitPath withArgs:arguments inDir:[self workingDirectory]];
+}
+
 - (NSFileHandle*) handleForCommand:(NSString *)cmd
 {
 	NSArray* arguments = [cmd componentsSeparatedByString:@" "];