Archives/wting_autojump
1
0
Fork 0
mirror of https://github.com/wting/autojump synced 2024-10-27 20:34:07 +00:00
Code Issues Releases Wiki Activity

according to T'so, this is the correct way to do atomic writes in a file (http://thunk.org/tytso/blog/2009/03/15/dont-fear-the-fsync/)

Browse Source
This commit is contained in:
Joël Schaerer 2009-03-17 10:39:00 +01:00
parent 29046f4dce
commit 3bd45e5304
1 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
autojump
View File

@ -32,9 +32,14 @@ def match(path,pattern,path_dict,re_flags=0):
return False return False
def save(path_dict,dic_file): def save(path_dict,dic_file):
cPickle.dump(path_dict,open(dic_file+".tmp",'w'),-1) f=open(dic_file+".tmp",'w')
import shutil cPickle.dump(path_dict,f,-1)
shutil.copy(dic_file+".tmp",dic_file) #cPickle.dump doesn't seem to be atomic, so this is more secure f.flush()
os.fsync(f)
f.close()
os.rename(dic_file+".tmp",dic_file) #cf. http://thunk.org/tytso/blog/2009/03/15/dont-fear-the-fsync/
#import shutil
#shutil.copy(dic_file+".tmp",dic_file) #cPickle.dump doesn't seem to be atomic, so this is more secure
def forget(path_dict,dic_file): def forget(path_dict,dic_file):
"""Gradually forget about directories. Only call from the actual jump since it can take time""" """Gradually forget about directories. Only call from the actual jump since it can take time"""