makefile rules for svn

[Vincent McIntyre <Vi...@atnf.csiro.au>]

Hi

I'm trying to write some makefile rules that emulate for svn repos what
make already does with RCS files; if the file is needed for a build,
and does not exist, attempt to check it out from the repository.
For an example, see [1] below.

Has anyone done this?

For historical reasons, I want to be able to work with a clean directory
and just a handful (mostly just one) of the files from a project.[2]
I would use a symlink to the .svn dir of a full checkout of the project
to maintain the status information.

The useage would look like:
   mkdir footest
   cd footest
   ln -s $svncheckoutdir/.svn .svn
   cp $svncheckoutdir/blabulator.f .
   vi blabulator.f
   make
   ...
   svn commit -m"fix typo in help" blabulator.f
   cd .. ; rm -rf footest

I can see that 'svn status <filename>' provides a way of detecting whether 
a given file is in the repository but not on disk (so needs copying), and 
that 'svn update <filename> gives a way of making a copy in the local
directory.

My question is, though, has someone been this way before and if so
what was the answer?
A search of the list archive didn't turn up anything useful.

Any thoughts would be welcome.
Vince

[1]
http://www.gnu.org/software/make/manual/make.html#index-RCS_002c-rule-to-extract-from-831
see also
http://www.gnu.org/software/make/manual/make.html#Pattern-Examples
http://www.gnu.org/software/make/manual/make.html#index-prerequisites_002c-automatic-generation-281

[2]
The project is mostly a collection of monolithic programs that are run
independently, on files of a particular format. This was easy to manage
in RCS.

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