1 files changed, 98 insertions, 0 deletions
diff --git a/osx/osx_fish_launcher.m b/osx/osx_fish_launcher.m
new file mode 100644
index 00000000..8b24d2ec
--- /dev/null
+++ b/osx/osx_fish_launcher.m
@@ -0,0 +1,98 @@
+#import <Foundation/Foundation.h>
+#import <CoreServices/CoreServices.h>
+#import <Carbon/Carbon.h>
+#import <stdlib.h>
+#import <stdio.h>
+#import <unistd.h>
+#import <errno.h>
+#import <sys/types.h>
+#import <sys/stat.h>
+
+
+// The path to the command file, which we'll delete on death (if it exists)
+static char s_command_path[PATH_MAX];
+
+static void die(const char *format, ...) {
+    va_list ap;
+    va_start(ap, format);
+    vfprintf(stderr, format, ap);
+    va_end(ap);
+    fputc('\n', stderr);
+    
+    if (s_command_path[0] != '\0') {
+        unlink(s_command_path);
+    }
+    
+    exit(EXIT_FAILURE);
+}
+
+static void launch_fish_with_applescript(NSString *fish_binary_path)
+{
+    // load the script from a resource by fetching its URL from within our bundle
+    NSString *path = [[NSBundle mainBundle] pathForResource:@"launch_fish" ofType:@"scpt"];
+    if (! path) die("Couldn't get path to launch_fish.scpt");
+    
+    NSURL *url = [NSURL fileURLWithPath:path isDirectory:NO];
+    if (! url) die("Couldn't get URL to launch_fish.scpt");
+      
+    NSDictionary *errors = nil;
+    NSAppleScript *appleScript = [[NSAppleScript alloc] initWithContentsOfURL:url error:&errors];
+    if (! appleScript) die("Couldn't load AppleScript");
+    
+    // create the first parameter
+    NSAppleEventDescriptor *firstParameter =
+            [NSAppleEventDescriptor descriptorWithString:fish_binary_path];
+
+    // create and populate the list of parameters (in our case just one)
+    NSAppleEventDescriptor *parameters = [NSAppleEventDescriptor listDescriptor];
+    [parameters insertDescriptor:firstParameter atIndex:1];
+
+    // create the AppleEvent target
+    ProcessSerialNumber psn = {0, kCurrentProcess};
+    NSAppleEventDescriptor *target =
+    [NSAppleEventDescriptor
+            descriptorWithDescriptorType:typeProcessSerialNumber
+            bytes:&psn
+            length:sizeof(ProcessSerialNumber)];
+
+    // create an NSAppleEventDescriptor with the script's method name to call,
+    // this is used for the script statement: "on show_message(user_message)"
+    // Note that the routine name must be in lower case.
+    NSAppleEventDescriptor *handler = [NSAppleEventDescriptor descriptorWithString:
+            [@"launch_fish" lowercaseString]];
+
+    // create the event for an AppleScript subroutine,
+    // set the method name and the list of parameters
+    NSAppleEventDescriptor *event =
+            [NSAppleEventDescriptor appleEventWithEventClass:kASAppleScriptSuite
+                    eventID:kASSubroutineEvent
+                    targetDescriptor:target
+                    returnID:kAutoGenerateReturnID
+    transactionID:kAnyTransactionID];
+    [event setParamDescriptor:handler forKeyword:keyASSubroutineName];
+    [event setParamDescriptor:parameters forKeyword:keyDirectObject];
+
+    // call the event in AppleScript
+    if (![appleScript executeAppleEvent:event error:&errors])
+    {
+        // report any errors from 'errors'
+        NSLog(@"Oops: %@", errors);
+    }
+
+    [appleScript release];
+}
+
+/* This approach asks Terminal to open a script that we control */
+int main(void) {
+    [[NSAutoreleasePool alloc] init];
+    
+    /* Get the fish executable. Make sure it's absolute. */
+    NSURL *fish_executable = [[NSBundle mainBundle] URLForResource:@"fish" withExtension:@"" subdirectory:@"base/bin"];
+    if (! fish_executable)
+        die("Could not find fish executable in bundle");
+        
+    launch_fish_with_applescript([fish_executable path]);    
+    
+    /* If we succeeded, it will clean itself up */
+    return 0;
+}