[Dovecot] Deleting messages from MailDir

[Benjamin R. Haskell]

On Wed, 13 Feb 2008, mouss wrote:

> Bill Cole wrote:
>> At 12:21 AM -0500 2/13/08, Benjamin R. Haskell  imposed structure on a 
>> stream of electrons, yielding:
>>
>>> [...] Under most *nix filesystems, ctime is the last time the inode 
>>> underlying the file/dir was changed ('c' for "changed", not "created" 
>>> -- [usually]). The inode gets changed when the file's moved from one 
>>> directory to another.
>>> 
>> 
>> Not on all filesystems. Note what HFS+ (MacOS) does:
>> 
>> ~ $ ls -lc foo
>> -rwxr-xr-x   1 wkc  wkc  332 Jan 29 03:32 foo
>> ~ $ mkdir foodir
>> ~ $ mv foo foodir
>> ~ $ ls -lc foodir/foo
>> -rwxr-xr-x   1 wkc  wkc  332 Jan 29 03:32 foodir/foo
>> ~ $ date
>> Wed Feb 13 08:39:24 EST 2008
>> 
>
> The question is whether this is because of an fs limitation or is it for 
> compatibility with some old tools.
>
> Posix says:
>
> Upon successful completion, /rename/() shall mark for update the /st_ctime/ 
> and /st_mtime/ fields of the parent directory of each file.
>

We haven't seen the ctime or mtime of the parent directory. Just of the 
file.


> and ctime is the last status change time. AFAICT, an mv is certainly a status 
> change.
>
>
> but maybe I disgress:)