Mercurial Repositories > eric / file diff

--- a/Utilities/__init__.py	Thu Nov 17 18:59:13 2016 +0100
+++ b/Utilities/__init__.py	Fri Nov 18 18:34:34 2016 +0100
@@ -977,6 +977,50 @@
     return paths
     
 
+def getWindowsExecutablePath(file):
+    """
+    Function to build the full path of an executable file from the environment
+    on Windows platforms.
+    
+    First an executable with the extension .exe is searched for, thereafter one
+    with the extension .bat and finally the given file name as is. The first
+    match is returned.
+    
+    @param file filename of the executable to check (string)
+    @return full executable name, if the executable file is accessible
+        via the searchpath defined by the PATH environment variable, or an
+        empty string otherwise.
+    """
+    if os.path.isabs(file):
+        if os.access(file, os.X_OK):
+            return file
+        else:
+            return ""
+    
+    filenames = [file + ".exe", file + ".bat", file]
+    
+    for filename in filenames:
+        cur_path = os.path.join(os.curdir, filename)
+        if os.path.exists(cur_path):
+            if os.access(cur_path, os.X_OK):
+                return cur_path
+
+    path = os.getenv('PATH')
+    
+    # environment variable not defined
+    if path is None:
+        return ""
+        
+    dirs = path.split(os.pathsep)
+    for dir in dirs:
+        for filename in filenames:
+            exe = os.path.join(dir, filename)
+            if os.access(exe, os.X_OK):
+                return exe
+    
+    return ""
+    
+
 def isExecutable(exe):
     """
     Function to check, if a file is executable.