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GTDiffHunk.m
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GTDiffHunk.m
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//
// GTDiffHunk.m
// ObjectiveGitFramework
//
// Created by Danny Greg on 30/11/2012.
// Copyright (c) 2012 GitHub, Inc. All rights reserved.
//
#import "GTDiffHunk.h"
#import "GTDiffDelta.h"
#import "GTDiffLine.h"
@interface GTDiffHunk ()
@property (nonatomic, strong, readonly) GTDiffDelta *delta;
@property (nonatomic, readonly) NSUInteger hunkIndex;
@end
@implementation GTDiffHunk
- (instancetype)initWithDelta:(GTDiffDelta *)delta hunkIndex:(NSUInteger)hunkIndex {
self = [super init];
if (self == nil) return nil;
_delta = delta;
_hunkIndex = hunkIndex;
const char *headerCString;
size_t headerLength;
size_t lineCount;
int result = git_diff_patch_get_hunk(NULL, &headerCString, &headerLength, &lineCount, delta.git_diff_patch, hunkIndex);
if (result != GIT_OK) return nil;
_header = [[[NSString alloc] initWithBytes:headerCString length:headerLength encoding:NSUTF8StringEncoding] stringByTrimmingCharactersInSet:NSCharacterSet.newlineCharacterSet];
_lineCount = lineCount;
return self;
}
- (void)enumerateLinesInHunkUsingBlock:(void (^)(GTDiffLine *line, BOOL *stop))block {
NSParameterAssert(block != nil);
for (NSUInteger idx = 0; idx < self.lineCount; idx ++) {
char lineOrigin;
const char *content;
size_t contentLength;
int oldLineNumber;
int newLineNumber;
int result = git_diff_patch_get_line_in_hunk(&lineOrigin, &content, &contentLength, &oldLineNumber, &newLineNumber, self.delta.git_diff_patch, self.hunkIndex, idx);
if (result != GIT_OK) continue;
NSString *lineString = [[[NSString alloc] initWithBytes:content length:contentLength encoding:NSUTF8StringEncoding] stringByTrimmingCharactersInSet:NSCharacterSet.newlineCharacterSet];
GTDiffLine *line = [[GTDiffLine alloc] initWithContent:lineString oldLineNumber:(NSUInteger)oldLineNumber newLineNumber:(NSUInteger)newLineNumber origin:lineOrigin];
BOOL stop = NO;
block(line, &stop);
if (stop) return;
}
}
@end