implementing edit conflict & collision detection

[mw] / src / mw / metadir.py

diff --git a/src/mw/metadir.py b/src/mw/metadir.py
index 295481901682441c55276068db16d605f7f53f30..3f8d96782551c01bb2f4cf66c34b6b72bebb67ea 100644 (file)
--- a/src/mw/metadir.py
+++ b/src/mw/metadir.py
@@ -78,6 +78,18 @@ class Metadir(object):
         # create cache/pages/
         os.mkdir(os.path.join(self.location, 'cache', 'pages'), 0755)
 
+
+
+    def clean_page(self, pagename):
+        filename = mw.api.pagename_to_filename(pagename) + '.wiki'
+        cur_content = codecs.open(filename, 'r', 'utf-8').read()
+        if ( (len(cur_content) != 0) and (cur_content[-1] == '\n') ):
+           cur_content = cur_content[:-1]
+
+        fd = file(filename, 'w')
+        fd.write(cur_content.encode('utf-8'))   
+        fd.close()
+
     def pagedict_add(self, pagename, pageid, currentrv):
         fd = file(os.path.join(self.location, 'cache', 'pagedict'), 'r+')
         pagedict = json.loads(fd.read())
@@ -155,7 +167,7 @@ class Metadir(object):
                     rvid = self.pages_get_rv_list(pageid)[-1]
                     rv = self.pages_get_rv(pageid, rvid)
                     cur_content = codecs.open(full, 'r', 'utf-8').read()
-                    if cur_content[-1] == '\n':
+                    if (len(cur_content) != 0) and (cur_content[-1] == '\n'):
                         cur_content = cur_content[:-1]
                     if cur_content != rv['content']:
                         status[os.path.relpath(full, self.root)] = 'U'
@@ -176,7 +188,7 @@ class Metadir(object):
             old = [i + '\n' for i in oldrv['content'].split('\n')]
             if newrvid == 0:
                 cur_content = codecs.open(filename, 'r', 'utf-8').read()
-                if cur_content[-1] == '\n':
+                if (len(cur_content) != 0) and (cur_content[-1] == '\n'):
                     cur_content = cur_content[:-1]
                 newname = 'b/%s (working copy)' % filename
                 new = [i + '\n' for i in cur_content.split('\n')]