From d6cf2a702d865e70f82004edc7fc0797cc6ba9fd Mon Sep 17 00:00:00 2001
From: Riccardo Mottola <rm@gnu.org>
Date: Mon, 13 Jan 2014 10:47:44 +0000
Subject: [PATCH] Convenience method to find executables, by Richard
 Frith-Macdonald

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/apps/projectcenter/trunk@37587 72102866-910b-0410-8b05-ffd578937521
---
 Framework/PCFileManager.m             | 36 +++++++++++++++++++++++++++
 Headers/ProjectCenter/PCFileManager.h |  5 +++-
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/Framework/PCFileManager.m b/Framework/PCFileManager.m
index e9324f5..96879a7 100644
--- a/Framework/PCFileManager.m
+++ b/Framework/PCFileManager.m
@@ -330,6 +330,42 @@ static PCFileManager *_mgr = nil;
   return YES;
 }
 
+// ===========================================================================
+// ==== Find Executable
+// Tries to find the first matching executable tool fromt he given, nil-terminated
+// list. Returns the full path for it.
+// ===========================================================================
+- (NSString*) findExecutableToolFrom: (NSArray*)candidates
+{
+  NSFileManager	*manager;
+  NSEnumerator	*relPath;
+  NSEnumerator	*pathEnumerator;
+  NSString	*directory;
+
+  manager = [NSFileManager defaultManager];
+  pathEnumerator = [NSSearchPathForDirectoriesInDomains(NSDeveloperDirectory, NSAllDomainsMask, YES) objectEnumerator];
+
+  while (nil != (directory = [pathEnumerator nextObject]))
+    {
+      NSEnumerator *candidateEnumerator = [candidates objectEnumerator];
+      NSString     *candidate;
+
+      while (nil != (candidate = [candidateEnumerator nextObject]))
+        {
+          NSString *path = [directory stringByAppendingPathComponent: candidate];
+
+          NSLog(@"final candidate path is: %@", path);
+          
+          if ([manager isExecutableFileAtPath: path])
+	    {
+	      return path;
+            }
+        }
+    }
+  return nil;
+}
+
+
 @end
 
 @implementation PCFileManager (UInterface)
diff --git a/Headers/ProjectCenter/PCFileManager.h b/Headers/ProjectCenter/PCFileManager.h
index 1f59a73..c9f9c90 100644
--- a/Headers/ProjectCenter/PCFileManager.h
+++ b/Headers/ProjectCenter/PCFileManager.h
@@ -1,7 +1,7 @@
 /*
    GNUstep ProjectCenter - http://www.gnustep.org/experience/ProjectCenter.html
 
-   Copyright (C) 2000-2004 Free Software Foundation
+   Copyright (C) 2000-2014 Free Software Foundation
 
    Authors: Philippe C.D. Robert
             Serg Stoyan
@@ -112,6 +112,9 @@ enum {
 
 - (BOOL)moveFile:(NSString *)file intoDirectory:(NSString *)directory;
 
+// find an executable from list and return full path
+- (NSString*) findExecutableToolFrom: (NSArray*)candidates;
+
 @end
 
 @interface PCFileManager (UInterface)