Merge pull request #420 from alcatraz/kattrali/check-git-paths

[ATZGit] Check possible git executable paths
alcatraz · Jan 29, 2016 · a414a89 · a414a89
2 parents 874f4d3 + 9a0fe15
commit a414a89
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Showing 2 changed files with 28 additions and 14 deletions.
diff --git a/Alcatraz/Helpers/ATZGit.h b/Alcatraz/Helpers/ATZGit.h
@@ -22,7 +22,6 @@
 
 #import <Foundation/Foundation.h>
 
-static NSString *const GIT = @"/usr/bin/git";
 static NSString *const IGNORE_PUSH_CONFIG = @"-c push.default=matching";
 static NSString *const CLONE = @"clone";
 static NSString *const FETCH = @"fetch";

diff --git a/Alcatraz/Helpers/ATZGit.m b/Alcatraz/Helpers/ATZGit.m
@@ -48,22 +48,37 @@ + (NSString *)parseRevisionFromDictionary:(NSDictionary *)dict {
 }
 
 + (BOOL)areCommandLineToolsAvailable {
-    BOOL areAvailable = YES;
-    @try {
-        [NSTask launchedTaskWithLaunchPath:@"/usr/bin/git" arguments:@[@"--version"]];
-    }
-    @catch (NSException *exception) {
-        areAvailable = NO;
-    }
-    return areAvailable;
+    return [self gitExecutablePath] != nil;
+}
+
++ (NSString *)gitExecutablePath {
+    static dispatch_once_t onceToken;
+    static NSString *gitPath;
+    dispatch_once(&onceToken, ^{
+        NSArray *gitPathOptions = @[
+            @"/usr/bin/git",
+            @"/usr/local/bin/git"
+        ];
+        for (NSString *path in gitPathOptions) {
+            @try {
+                [NSTask launchedTaskWithLaunchPath:path arguments:@[@"--version"]];
+            }
+            @catch (NSException *exception) {
+                continue;
+            }
+            gitPath = path;
+            break;
+        }
+    });
+    return gitPath;
 }
 
 #pragma mark - Private
 
 + (void)clone:(NSString *)remotePath to:(NSString *)localPath completion:(void (^)(NSString *, NSError *))completion {
     ATZShell *shell = [ATZShell new];
-    
-    [shell executeCommand:GIT withArguments:@[CLONE, remotePath, localPath, IGNORE_PUSH_CONFIG]
+
+    [shell executeCommand:[self gitExecutablePath] withArguments:@[CLONE, remotePath, localPath, IGNORE_PUSH_CONFIG]
                completion:^(NSString *output, NSError *error) {
 
         NSLog(@"Git Clone output: %@", output);
@@ -89,7 +104,7 @@ + (void)updateLocalProject:(NSString *)localPath revision:(NSString *)revision
 + (void)fetch:(NSString *)localPath completion:(void (^)(NSString *, NSError *))completion {
 
     ATZShell *shell = [ATZShell new];
-    [shell executeCommand:GIT withArguments:@[FETCH, ORIGIN] inWorkingDirectory:localPath
+    [shell executeCommand:[self gitExecutablePath] withArguments:@[FETCH, ORIGIN] inWorkingDirectory:localPath
                completion:^(NSString *output, NSError *error) {
 
         NSLog(@"Git fetch output: %@", output);
@@ -102,8 +117,8 @@ + (void)resetHard:(NSString *)localPath revision:(NSString *)revision
 
     ATZShell *shell = [ATZShell new];
     NSArray *resetArguments = @[RESET, HARD, revision ?: ORIGIN_MASTER];
-    
-    [shell executeCommand:GIT withArguments:resetArguments inWorkingDirectory:localPath
+
+    [shell executeCommand:[self gitExecutablePath] withArguments:resetArguments inWorkingDirectory:localPath
                completion:^(NSString *output, NSError *error) {
 
         NSLog(@"Git reset output: %@", output);