Re: [Monotone-devel] Hooks

[Ludovic Brenta]

Daniel Carrera writes:
> Ludovic Brenta wrote:
>> I'm not very comfortable with lua either and my first move was to write a
>> shell script along the lines of:
>>
>> #!/bin/sh
>> head=$(mtn automate get_base_workspace_revision)
>> parent=$(mtn automate select p:$head)
>> sed -i -r 's,old_revision \[.*\],old_revision [$parent],' _MTN/revision
>>
>> but this approach fails as soon as the head has more than one parent.
>> That's why, until now, I stuck to the manual way.
>
> How about this?:
>
>
> count=$(mtn automate parents $head|wc -l|sed 's/ //g')
> if [ $count != "1" ]; then
>     echo "Cannot undo. More than one parent."
>     exit
> fi
>
> parents=$(mtn automate parents $head)
> sed -i -r 's,old_revision \[.*\],old_revision [$parent],' _MTN/revision

Looks reasonable.  Note though that I wrote my proposal directly in
the mail and didn't test it.

-- 
Ludovic Brenta.