Github user iilyak commented on a diff in the pull request:
https://github.com/apache/couchdb-couch/pull/27#discussion_r22413903
--- Diff: src/couch_file.erl ---
@@ -257,13 +257,43 @@ nuke_dir(RootDelDir, Dir) ->
init_delete_dir(RootDir) ->
Dir = filename:join(RootDir,".delete"),
- % note: ensure_dir requires an actual filename companent, which is the
- % reason for "foo".
- filelib:ensure_dir(filename:join(Dir,"foo")),
+ ensure_dir(Dir),
+ TmpDir = make_temp_name(Dir),
+ % rename original directory so we can return and delete files
asynchronously
+ ok = file:rename(Dir, TmpDir),
+ % recreate original directory
+ ensure_dir(Dir),
+ spawn(fun() -> delete_temp_dirs(RootDir, Dir) end),
+ ok.
+
+
+make_temp_name(Prefix) ->
+ {A,B,C} = now(),
+ lists:flatten(io_lib:format("~s.tmp-~p.~p.~p",[Prefix, A, B, C])).
+
+
+delete_temp_dirs(RootDir, Prefix) ->
+ Dirs = filelib:wildcard(Prefix ++ ".tmp-" ++ "*", RootDir),
+ [ok = delete_dir(Dir) || Dir <- Dirs],
+ ok.
+
+
+ensure_dir(Dir) ->
+ filelib:ensure_dir(Dir ++ "/").
--- End diff --
According to docs for filename module:
In Windows, all functions return file names with forward slashes only, even
if the arguments contain back slashes.
Also if I remember correctly it worked on windows. However it was long time
ago when I did erlang project on windows. So it might be broken on recent
erlang versions, but I doubt.
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