Re: [boost] [bjam] copy a file

Subject: Re: [boost] [bjam] copy a file
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2012-01-23 14:26:02

AMDG

On 01/23/2012 10:26 AM, lcaminiti wrote:
> Hello all,
> 
> I'd have a Jamfile that has a "doc" rule to build documentation `bjam doc`.
> I'd like to program another rule "config_doc" inside the Jamfile that does
> the following:
> 
> bjam config_doc:
> 1) Copy the file /etc/config.txt to ./
> 2) Copy the file ./src/config.txt to /etc/
> 3) Run the doc rule
> 4) Copy the file ./config.txt into /etc/
> Where ./ is the current directory from where I'm running bjam. Ideally, I'd
> like 4) to be executed even if 3) fails.
> 
> Is there a way to do this?
> 

If there's any way to avoid this, you should.

a) This can't safely run in parallel with
other uses of the same rule or anything else
that uses /etc/config.txt
b) You can't guarantee that /etc/config.txt
is restored properly if the process is interrupted.

If you really, /really/ need to do this,
you should probably use a single action
that does all of this.

In Christ,
Steven Watanabe