Merge pull request libgit2#290 from libgit2/removal-by-path

Add removal by path.

Author: Bigboybad

Classes/GTIndex.h

@@ -108,7 +108,7 @@
 // Returns YES if successful, NO otherwise.
 - (BOOL)addEntry:(GTIndexEntry *)entry error:(NSError **)error;
 
-// Add an entry by path to the index.
+// Add an entry (by relative path) to the index.
 // Will fail if the receiver's repository is nil.
 //
 // file  - The path (relative to the root of the repository) of the file to add.
@@ -117,6 +117,16 @@
 // Returns YES if successful, NO otherwise.
 - (BOOL)addFile:(NSString *)file error:(NSError **)error;
 
+// Remove an entry (by relative path) from the index.
+// Will fail if the receiver's repository is nil.
+//
+// file  - The path (relative to the root of the repository) of the file to
+//         remove.
+// error - The error, if one occurred.
+//
+// Returns YES if successful, NO otherwise.
+- (BOOL)removeFile:(NSString *)file error:(NSError **)error;
+
 // Write the index to the repository.
 // Will fail if the receiver's repository is nil.
 //

Classes/GTIndex.m

@@ -120,7 +120,7 @@ - (GTIndexEntry *)entryWithName:(NSString *)name {
 
 - (GTIndexEntry *)entryWithName:(NSString *)name error:(NSError **)error {
 	size_t pos = 0;
-	int gitError = git_index_find(&pos, self.git_index, name.UTF8String);
+	int gitError = git_index_find(&pos, self.git_index, name.fileSystemRepresentation);
 	if (gitError != GIT_OK) {
 		if (error != NULL) *error = [NSError git_errorFor:gitError description:@"%@ not found in index", name];
 		return NULL;
@@ -139,7 +139,7 @@ - (BOOL)addEntry:(GTIndexEntry *)entry error:(NSError **)error {
 }
 
 - (BOOL)addFile:(NSString *)file error:(NSError **)error {
-	int status = git_index_add_bypath(self.git_index, file.UTF8String);
+	int status = git_index_add_bypath(self.git_index, file.fileSystemRepresentation);
 	if (status != GIT_OK) {
 		if (error != NULL) *error = [NSError git_errorFor:status description:@"Failed to add file %@ to index.", file];
 		return NO;
@@ -148,6 +148,16 @@ - (BOOL)addFile:(NSString *)file error:(NSError **)error {
 	return YES;
 }
 
+- (BOOL)removeFile:(NSString *)file error:(NSError **)error {
+	int status = git_index_remove_bypath(self.git_index, file.fileSystemRepresentation);
+	if (status != GIT_OK) {
+		if (error != NULL) *error = [NSError git_errorFor:status description:@"Failed to remove file %@ from index.", file];
+		return NO;
+	}
+	
+	return YES;
+}
+
 - (BOOL)write:(NSError **)error {
 	int status = git_index_write(self.git_index);
 	if (status != GIT_OK) {