gitx.m

   1 //
   2 //  gitx.m
   3 //  GitX
   4 //
   5 //  Created by Ciarán Walsh on 15/08/2008.
   6 //  Copyright 2008 __MyCompanyName__. All rights reserved.
   7 //
   8
   9 #import "PBCLIProxy.h"
  10 #import "PBGitBinary.h"
  11 #import "PBEasyPipe.h"
  12
  13 NSDistantObject* connect()
  14 {
  15         id proxy = [NSConnection rootProxyForConnectionWithRegisteredName:ConnectionName host:nil];
  16         [proxy setProtocolForProxy:@protocol(GitXCliToolProtocol)];
  17         return proxy;
  18 }
  19
  20 NSDistantObject *createProxy()
  21 {
  22         NSDistantObject *proxy = connect();
  23
  24         if (proxy)
  25                 return proxy;
  26
  27         // The connection failed, so try to launch the app
  28         [[NSWorkspace sharedWorkspace] launchAppWithBundleIdentifier: @"nl.frim.GitX"
  29                                                                                                                  options: NSWorkspaceLaunchWithoutActivation
  30                                                                   additionalEventParamDescriptor: nil
  31                                                                                                 launchIdentifier: nil];
  32
  33         // Now attempt to connect, allowing the app time to startup
  34         int attempt;
  35         for (attempt = 0; proxy == nil && attempt < 50; ++attempt) {
  36                 if (proxy = connect())
  37                         return proxy;
  38
  39                 usleep(15000);
  40         }
  41
  42         // not succesful!
  43         fprintf(stderr, "Couldn't connect to app server!\n");
  44         exit(1);
  45         return nil;
  46 }
  47
  48 void usage(char const *programName)
  49 {
  50
  51         printf("Usage: %s (--help|--version)\n", programName);
  52         printf("   or: %s (--commit|-h)\n", programName);
  53         printf("   or: %s <revlist options>\n", programName);
  54         printf("\n");
  55         printf("\t-h, --help          print this help\n");
  56         printf("\t--commit, -c        start GitX in commit mode\n");
  57         printf("\n");
  58         printf("RevList options\n");
  59         printf("\tSee 'man git-log' and 'man git-rev-list' for options you can pass to gitx\n");
  60         printf("\n");
  61         printf("\t--all                  show all branches\n");
  62         printf("\t<branch>               show specific branch\n");
  63         printf("\t -- <path>             show commits touching paths\n");
  64         exit(1);
  65 }
  66
  67 void version_info()
  68 {
  69         NSString *version = [[[NSBundle bundleForClass:[PBGitBinary class]] infoDictionary] valueForKey:@"CFBundleVersion"];
  70         printf("This is GitX version %s\n", [version UTF8String]);
  71         if ([PBGitBinary path])
  72                 printf("Using git found at %s, version %s\n", [[PBGitBinary path] UTF8String], [[PBGitBinary version] UTF8String]);
  73         else
  74                 printf("GitX cannot find a git binary\n");
  75         exit(1);
  76 }
  77
  78 void git_path()
  79 {
  80         if (![PBGitBinary path])
  81                 exit(101);
  82
  83         NSString *path = [[PBGitBinary path] stringByDeletingLastPathComponent];
  84         printf("%s", [path UTF8String]);
  85         exit(0);
  86 }
  87
  88 void handleSTDINDiff(id<GitXCliToolProtocol> proxy)
  89 {
  90         NSFileHandle *handle = [NSFileHandle fileHandleWithStandardInput];
  91         NSData *data = [handle readDataToEndOfFile];
  92         NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
  93
  94         if (string && [string length] > 0) {
  95                 [proxy openDiffWindowWithDiff:string];
  96                 exit(0);
  97         }
  98 }
  99
 100 void handleDiffWithArguments(NSArray *arguments, NSString *directory, id<GitXCliToolProtocol> proxy)
 101 {
 102         int ret;
 103         arguments = [[NSArray arrayWithObject:@"diff"] arrayByAddingObjectsFromArray:arguments];
 104         NSString *diff = [PBEasyPipe outputForCommand:[PBGitBinary path] withArgs:arguments inDir:directory retValue:&ret];
 105         if (ret) {
 106                 printf("Invalid diff command\n");
 107                 exit(3);
 108         }
 109
 110         [proxy openDiffWindowWithDiff:diff];
 111         exit(0);
 112 }
 113
 114 int main(int argc, const char** argv)
 115 {
 116         if (argc >= 2 && (!strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")))
 117                 usage(argv[0]);
 118         if (argc >= 2 && (!strcmp(argv[1], "--version") || !strcmp(argv[1], "-v")))
 119                 version_info();
 120         if (argc >= 2 && !strcmp(argv[1], "--git-path"))
 121                 git_path();
 122
 123         if (![PBGitBinary path]) {
 124                 printf("%s\n", [[PBGitBinary notFoundError] cStringUsingEncoding:NSUTF8StringEncoding]);
 125                 exit(2);
 126         }
 127
 128         // Attempt to connect to the app
 129         id proxy = createProxy();
 130
 131         // Create arguments
 132         argv++; argc--;
 133         NSMutableArray* arguments = [NSMutableArray arrayWithCapacity:argc];
 134         int i = 0;
 135         for (i = 0; i < argc; i++)
 136                 [arguments addObject: [NSString stringWithUTF8String:argv[i]]];
 137
 138         if (!isatty(STDIN_FILENO) && fdopen(STDIN_FILENO, "r"))
 139                 handleSTDINDiff(proxy);
 140
 141         // From this point, we require a working directory
 142         NSString *pwd = [[[NSProcessInfo processInfo] environment] objectForKey:@"PWD"];
 143         if (!pwd)
 144                 exit(2);
 145
 146         if ([arguments count] > 0 && ([[arguments objectAtIndex:0] isEqualToString:@"--diff"] ||
 147                 [[arguments objectAtIndex:0] isEqualToString:@"-d"]))
 148                 handleDiffWithArguments([arguments subarrayWithRange:NSMakeRange(1, [arguments count] - 1)], pwd, proxy);
 149
 150         // No diff, just open the current dir
 151         NSURL* url = [NSURL fileURLWithPath:pwd];
 152         NSError* error = nil;
 153
 154         if (![proxy openRepository:url arguments: arguments error:&error]) {
 155                 fprintf(stderr, "Error opening repository at %s\n", [[url path] UTF8String]);
 156                 if (error)
 157                         fprintf(stderr, "\t%s\n", [[error localizedFailureReason] UTF8String]);
 158         }
 159
 160         return 0;
 161 }