Re: Question about CVS Trigger Scripts

[Paul Sander]

Or you can write a program that accepts CVS' command line arguments  
and environments, invokes the CVS command line, and calls per-command  
triggers as appropriate based on its input and the CVS exit status.

On Aug 22, 2010, at 3:46 PM, Arthur Barrett wrote:

> Hi appp,
>
> It's really not that simple.
>
> Over at the CVSNT project (GPL/Free Software, runs on Unix/Linux as  
> well as Windows etc) we struggled with this sort of thing when we  
> created the failsafe audit plugin for CVSNT.  Thankfully CVSNT has a  
> 3GL trigger interface as well as the script trigger interface - but  
> we still had to radically alter the core code, I'll explain why.
>
> Not only are scripts called per-directory - CVS processing behaves  
> the same way.  So you can successfully commit half your files, and  
> then some failure occurs (eg: deadlock, revision not up to date  
> because someone else committed a new revision while your process was  
> processing some other module) the server process exits.
>
> Now these 'exits' happen all over the place - whilst some are easy  
> to spot, others take a lot of digging.  In short to ensure that some  
> 'postcommand' process gets ran EVERY time (end of commit) required a  
> lot of work.
>
> CVSNT is ported from CVS 1.11 codeline - so there is a chance that  
> the 1.12 codeline has addressed this - but I'm sceptical.
>
> So in short: you can use precommand/postcommand (I'm not sure which  
> version of CVS has these triggers - all I know is we've got them in  
> CVSNT) and build up a list of what to handle in postcommit and  
> handle the case where postcommand is never called.
>
> If your implementation requires these sorts of functions then I  
> personally recommend CVSNT instead of CVS (but I would wouldn't I -  
> after spending the last 6 years working on it...).
>
> Regards,
>
>
> Arthur Barrett
>
>
>
> -----Original Message-----
> From:	address@hidden on  
> behalf of App Penetrator
> Sent:   Sat 21/08/2010 7:41 AM
> To:     address@hidden
> Cc:     
> Subject:        Question about CVS Trigger Scripts
>
> I've been using the documentation and configuration file comments to  
> come up
> with pre-commit and post-commit hooks for CVS that have been working  
> very
> well, but there is a caveat:
>
> These scripts are run for each different directory that is  
> committed.  This
> means, when I commit multiple updated directories in one commit  
> command, my
> trigger scripts are called more than once.  Precisely once for each
> different directory in the commit.
>
> This is fine for most cases, but I would like to be able to  
> determine when
> the _entire_ commit has begun and when it has ended.  Is it  
> possible?  How
> can I do it?
>
> Thanks,
>
> appp