Re: [Monotone-devel] Re: renaming branches

[Gerhard Schuck]

graydon hoare wrote:
> Gerhard Schuck wrote:
>
> > simple question: Is it possible to rename (or delete) branches? The 
[...]
> it's possible, yes. you'd need to reissue new branch certs with the new 
> names, and delete branch certs with the old names. there's no command to 
> do this at the moment. it's possible to add one. doing it by hand at the 
> moment would be a bit of a pain, unfortunately; the cert values (branch 
> names) are all base64 encoded (with a trailing \n), so you need to do 
> something awful like:
>
> FROM=$(echo -n $OLD_BRANCH | mimencode)
> IDS=$(monotone debug "$(printf "select id from manifest_certs where 
> name='branch' and value='%s\n'" $FROM)" | grep -v row)
> monotone debug "$(printf "delete from manifest_certs where name='branch' 
> and value='%s\n'" $FROM)"
> for i in $IDS
> do
>     monotone cert manifest manifest $i branch $NEW_BRANCH
> done

I tried the above commands in the following way:

#!/bin/bash
ARCHIVE=/home/gs/monotone/test.db
OLD_BRANCH=Test
NEW_BRANCH=test

FROM=$(echo -n $OLD_BRANCH | mimencode)
IDS=$(monotone --db=$ARCHIVE debug "$(printf "select id from
manifest_certs where name='branch' and value='%s\n'" $FROM)" | grep -v row)
monotone --db=$ARCHIVE debug "$(printf "delete from manifest_certs where
name='branch' and value='%s\n'" $FROM)"
for i in $IDS
do
   monotone --db=$ARCHIVE cert manifest manifest $i branch $NEW_BRANCH
done


That script failed with the following error message:

'delete from manifest_certs where name='branch' and value='VGVzdA==
'' -> 0 rows
Usage: monotone [OPTION...] command [ARGS...]
[...]


The old branch "Test" vanished from the output of "list branches"
though. So something must have changed in the database. But the new
branch name doesn't appear.

Is there any mistake in my script? What else can I try?


> it'll probably be more sensible to make a "monotone branch rename" 
> command which does this internally, since it's so awful.

Yes, that would be very nice.

Thanks for your help

Gerhard