Re: DOCS: CG addition--running stable and devel at once

[Jonathan Kulp]

Werner LEMBERG wrote:
> > http://www.jonathankulp.com/stable-devel.pdf
>
> BTW, to run stable and development versions in parallel, I do it a bit
> differently:
>
>   . `stable': Configure and install as normal.
>
>   . `devel': Configure with
>
>       ./configure --prefix=/usr/local/test
>
>     and install as normal.

Aha! An option at the configure stage. I never thought of that.

>   . If I want to use the development version, I then say
>
>       PATH=/usr/local/test/bin:$PATH lilypond ...
>
>     This part can be saved into a file, of course.
>
> So it's the question what exactly you want to achieve if you say `use
> the development version'.  Leaving the binary directly in the
> compilation directory probably makes it difficult to say `git pull'
> without recompilation afterwards.

Yes, when I pull from git I check to see if any of the .cc files have 
changed, and if so I recompile. This method of using two versions was 
suggested to me by Carl Sorensen.  I like it because after recompiling I 
always have the latest changes without having to install or uninstall. 
As long as I don't do "make clean" it works. I should probably explain 
this in there.  On my own machine I don't do this precise method (with 
the "exec ~/lilypond..." file), I always call Lilypond using a personal 
shell script, so I just use the command "~/lilypond/out/bin/lilypond" in 
the script instead of "lilypond". My script has flags to set 
showFirstLength and showLastLength at the command line, open the pdf in 
a viewer, and so forth.

> [Well, I always compile in a separate directory after cloning the
> repository with `git clone -l -s . ../lilypond.compiled' so that `git
> pull' in the original git repository is safe too -- if I want to
> synchronize the compilation directory I simply say `git pull' there
> too.]

Ah, I think I see why you do it this way now. The only development I do 
is on the documentation, so I don't need to keep a separate repo of the 
program files.

Maybe I should add your method as well? It would be easy enough to do. 
Could you write a sentence or two that I can copy in there explaining 
the advantage of this method from a dev's point of view? I think I 
understand the advantage, but I don't want to get it wrong.

Thanks for looking at this, Werner.

Jon
--
Jonathan Kulp
http://www.jonathankulp.com