[PATCH 3 of 8] extensions: split retrieval of the extensions file paths

[Cédric Duval]

# HG changeset patch
# User Cédric Duval <cedricduval at free.fr>
# Date 1246737838 -7200
# Node ID 9ed801746dffaa8093991c959436bd2f34ead2bb
# Parent  fcb323504f182c854d1704367c745494abd59fae
extensions: split retrieval of the extensions file paths

Function returning the paths of extensions, meant to be later
moved into extdoc.

diff --git a/mercurial/extensions.py b/mercurial/extensions.py
--- a/mercurial/extensions.py
+++ b/mercurial/extensions.py
@@ -118,6 +118,24 @@
     setattr(container, funcname, wrap)
     return origfn
 
+def extfiles(path):
+    '''return a dict of {name: filename} for all extensions in the given path'''
+    try: # might not be a filesystem path
+        list = os.listdir(path)
+    except OSError:
+        return {}
+   
+    exts = {}
+    abspath = os.path.abspath(path)
+    for e in list:
+        if e.endswith('.py') and e != '__init__.py':
+            exts[e.rsplit('.', 1)[0]] = os.path.join(abspath, e)
+        else:
+            path = os.path.join(abspath, e, '__init__.py')
+            if os.path.exists(path):
+                exts[e] = path
+    return exts
+
 def disabled():
     '''find disabled extensions
     returns a dict of {name: desc}, and the max name length'''
@@ -135,27 +153,8 @@
 def extractdoc(extpath):
     '''extract descriptions from extensions in extpath
     returns a dict of {name: desc}'''
-
-    try: # might not be a filesystem path
-        files = os.listdir(extpath)
-    except OSError:
-        return {}
-
     exts = {}
-    for e in files:
-
-        if e.endswith('.py'):
-            name = e.rsplit('.', 1)[0]
-            path = os.path.join(extpath, e)
-        else:
-            name = e
-            path = os.path.join(extpath, e, '__init__.py')
-            if not os.path.exists(path):
-                continue
-
-        if name in exts or name == '__init__':
-            continue
-
+    for name, path in extfiles(extpath).iteritems():
         try:
             file = open(path)
         except IOError: