[projects/git-slug: 169/170] slug_watch: Avoid error if projects.list.head does not exist

[glen]

commit 1b97e58e91806093a321a501c9a86a1b5ca09cbc
Author: Kacper Kornet <draenog at pld-linux.org>
Date:   Thu Aug 15 13:35:59 2013 +0100

    slug_watch: Avoid error if projects.list.head does not exist

 slug_watch | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/slug_watch b/slug_watch
index 7b64460..70a7b2b 100755
--- a/slug_watch
+++ b/slug_watch
@@ -63,10 +63,11 @@ def process_file(pathname):
         print('{} is not an ordinary file'.format(pathname))
         return
 
-    try:
-        shutil.copyfile(PROJECTS_LIST_HEAD, PROJECTS_LIST_NEW)
-    except (OSError, shutil.Error):
-        logger.error('Cannot write {}'.format(PROJECTS_LIST_NEW))
+    if os.path.isfile(PROJECTS_LIST_HEAD):
+        try:
+            shutil.copyfile(PROJECTS_LIST_HEAD, PROJECTS_LIST_NEW)
+        except (OSError, shutil.Error):
+            logger.error('Cannot write {}'.format(PROJECTS_LIST_NEW))
 
     with open(os.path.join(REFREPO_WDIR, REFFILE),'w') as headfile_new, open(pathname, 'r') as newfile, \
             open(PROJECTS_LIST_NEW,'a') as projects:
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/projects/git-slug.git/commitdiff/4ed64f73960519a2f4fd04c42950b2c96ae795c5