Re: [imapsync] --userregextrans :-) No.

[Gilles LAMIRAL <gilles dot lamiral at laposte dot net>]

Hello Peer,

> Very often it's necessary to change usernames during the migration from 
> one server to another.

Ok.

> Sure, it's easy to write a little script to use different usernames on 
> host1 and host2.

Yes.

> But consequently it would be necessary to migratione usernamens in ACL-
> rules too. Otherweise the whole ACL-setup is broken.

I don't understand. When you migrate Bill account to Joe account
then Bill' acls are synced to Joe' acls, no?
Bill becomes Joe and the acls follow.

> That's nothing we can do with just some parameters, because each 
> imapsync migration process has to know *all* pairs of old/new usernames. 
> -A single account will have several ACL-rules for different users.

I don't understand. A single account with different users with different acls?

> Migrating ACLs would be easy if imapsync would understand a parameter 
> like --user-translation-file:
>
> olduser1 newuser1
> olduser2 newuser2
> olduser3 newuser3

No. Migration is already easy with a file.

    A file.csv file contains:
    user0001;password0001;user0002;password0002
    user0011;password0011;user0012;password0012 ...
    A shell program:
     { while IFS=';' read  u1 p1 u2 p2; do
            imapsync --user1 "$u1" --password1  PWCHANGED --user2 "$u2" --password2  PWCHANGED ...
     done ; } < file.csv


> And sometimes it's possible to describe all changes by a simple regular 
> expressions. A parameter like "--userregextrans" would be nice to (for 
> stuff like s/(.+)@(.+)/\2_\1/).

No since with this regex it's then easy to generate the file.csv

> imapsync should migrate all usernames during the --syncacl-process.

No.
Write a small script doing that, document it, I'll add them in the distribution.
(I don't understand the multi-user acls issue)

> Having that kind of translation-file the parameter "--user2" could be 
> optional:

The --user1 too.
All parameters could be optional by putting them in a file.
So write this file and add imapsync at the beginning of each line.

> If no "--user2" is given, then "--user1" is used (same for --
> password2/--password1).

No, since "very often it's necessary to change usernames during the migration".

> If furthermore --user-translation-file or --userregextrans exists, then 
> imapsync should migrate the username used for the login (and for ACLs) 
> automatically from old to new.

imapsync works for one account to another, that's enough job to deal with.


--
Au revoir,                               02 99 64 31 77
Gilles Lamiral. France, Chavagne (35310) 06 20 79 76 06