forked from pieter/gitx
-
Notifications
You must be signed in to change notification settings - Fork 1
/
PBGitRevList.m
143 lines (116 loc) · 4.42 KB
/
PBGitRevList.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
//
// PBGitRevList.m
// GitX
//
// Created by Pieter de Bie on 17-06-08.
// Copyright 2008 __MyCompanyName__. All rights reserved.
//
#import "PBGitRevList.h"
#import "PBGitRepository.h"
#import "PBGitCommit.h"
#import "PBGitGrapher.h"
#import "PBGitRevSpecifier.h"
@implementation PBGitRevList
@synthesize commits, grapher;
- initWithRepository: (id) repo
{
repository = repo;
[self readCommits];
[repository addObserver:self forKeyPath:@"currentBranch" options:0 context:nil];
return self;
}
- (void) readCommits
{
// We use refparse to get the commit sha that we will parse. That way,
// we can check if the current branch is the same as the previous one
// and in that case we don't have to reload the revision list.
// If no branch was selected, use the current HEAD
NSArray* selectedBranches = [[repository branches] objectsAtIndexes: [repository currentBranch]];
// Apparently, we don't have a current branch yet. Let's skip it.
if ([selectedBranches count] == 0)
return;
PBGitRevSpecifier* newRev = [selectedBranches objectAtIndex:0];
NSString* newSha = nil;
if (newRev && [newRev isSimpleRef]) {
newSha = [repository parseReference:[newRev simpleRef]];
if ([newSha isEqualToString:lastSha])
return;
}
lastSha = newSha;
NSThread * commitThread = [[NSThread alloc] initWithTarget: self selector: @selector(walkRevisionListWithSpecifier:) object:newRev];
[commitThread start];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)change context:(void *)context
{
if (object == repository)
[self readCommits];
}
- (void) walkRevisionListWithSpecifier: (PBGitRevSpecifier*) rev
{
NSMutableArray* newArray = [NSMutableArray array];
NSMutableArray* arguments;
NSDate* start = [NSDate date];
BOOL showSign = [rev hasLeftRight];
if (showSign)
arguments = [NSMutableArray arrayWithObjects:@"log", @"--topo-order", @"--pretty=format:%H\01%an\01%s\01%P\01%at\01%m", nil];
else
arguments = [NSMutableArray arrayWithObjects:@"log", @"--topo-order", @"--pretty=format:%H\01%an\01%s\01%P\01%at", nil];
if (!rev)
[arguments addObject:@"HEAD"];
else
[arguments addObjectsFromArray:[rev parameters]];
NSFileHandle* handle = [repository handleForArguments: arguments];
int fd = [handle fileDescriptor];
FILE* f = fdopen(fd, "r");
int BUFFERSIZE = 2048;
char buffer[BUFFERSIZE];
buffer[BUFFERSIZE - 2] = 0;
char* l;
int num = 0;
NSMutableString* currentLine = [NSMutableString string];
while (l = fgets(buffer, BUFFERSIZE, f)) {
NSString *s = [NSString stringWithCString:(const char *)l encoding:NSUTF8StringEncoding];
if ([s length] == 0)
s = [NSString stringWithCString:(const char *)l encoding:NSASCIIStringEncoding];
[currentLine appendString: s];
// If buffer is full, we go for another round
if (buffer[BUFFERSIZE - 2] != 0) {
//NSLog(@"Line too long!");
buffer[BUFFERSIZE - 2] = 0;
continue;
}
// If we are here, we currentLine is a full line.
NSArray* components = [currentLine componentsSeparatedByString:@"\01"];
if ([components count] < 5) {
NSLog(@"Can't split string: %@", currentLine);
continue;
}
PBGitCommit* newCommit = [[PBGitCommit alloc] initWithRepository: repository andSha: [components objectAtIndex:0]];
NSArray* parents = [[components objectAtIndex:3] componentsSeparatedByString:@" "];
newCommit.parents = parents;
newCommit.subject = [components objectAtIndex:2];
newCommit.author = [components objectAtIndex:1];
newCommit.date = [NSDate dateWithTimeIntervalSince1970:[[components objectAtIndex:4] intValue]];
if (showSign)
newCommit.sign = [[components objectAtIndex:5] characterAtIndex:0];
[newArray addObject: newCommit];
num++;
if (num % 10000 == 0)
[self performSelectorOnMainThread:@selector(setCommits:) withObject:newArray waitUntilDone:NO];
currentLine = [NSMutableString string];
}
[self performSelectorOnMainThread:@selector(setCommits:) withObject:newArray waitUntilDone:YES];
if (![rev hasPathLimiter]) {
PBGitGrapher* g = [[PBGitGrapher alloc] initWithRepository: repository];
[g parseCommits: self.commits];
[self performSelectorOnMainThread:@selector(setGrapher:) withObject:g waitUntilDone:YES];
[self performSelectorOnMainThread:@selector(setCommits:) withObject:newArray waitUntilDone:YES];
}
else
grapher = nil;
NSTimeInterval duration = [[NSDate date] timeIntervalSinceDate:start];
NSLog(@"Loaded %i commits in %f seconds", num, duration);
[NSThread exit];
}
@end