From d54b49ce78293f61586e9b5df890ad4cc3a6b536 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 20 Aug 2009 11:16:23 -0600
Subject: [PATCH] IGN:...

---
 src/calibre/utils/filenames.py | 13 ++++++++++++-
 src/calibre/utils/sigil.py     | 17 +++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 src/calibre/utils/sigil.py

diff --git a/src/calibre/utils/filenames.py b/src/calibre/utils/filenames.py
index 0aab96522b..bf3cbe2f67 100644
--- a/src/calibre/utils/filenames.py
+++ b/src/calibre/utils/filenames.py
@@ -8,7 +8,7 @@ from math import ceil
 
 from calibre.ebooks.unidecode.unidecoder import Unidecoder
 from calibre import sanitize_file_name
-from calibre.constants import preferred_encoding
+from calibre.constants import preferred_encoding, iswindows
 udc = Unidecoder()
 
 def ascii_text(orig):
@@ -65,3 +65,14 @@ def shorten_components_to(length, components):
         ans.append(r)
     return ans
 
+def find_executable_in_path(name, path=None):
+    if path is None:
+        path = os.environ.get('PATH', '')
+    sep = ';' if iswindows else ':'
+    if iswindows and not name.endswith('.exe'):
+        name += '.exe'
+    path = path.split(sep)
+    for x in path:
+        q = os.path.abspath(os.path.join(x, name))
+        if os.access(q, os.X_OK):
+            return q
diff --git a/src/calibre/utils/sigil.py b/src/calibre/utils/sigil.py
new file mode 100644
index 0000000000..c87cd5ea93
--- /dev/null
+++ b/src/calibre/utils/sigil.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
+from __future__ import with_statement
+
+__license__   = 'GPL v3'
+__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
+__docformat__ = 'restructuredtext en'
+
+from calibre.utils.filenames import find_executable_in_path
+from calibre.constants import iswindows
+
+def find_executable():
+    name = 'sigil' + ('.exe' if iswindows else '')
+    path = find_executable_in_path(name)
+    #if path is None and iswindows:
+    #    path = search_program_files()
+