[Buildroot] [PATCH 02/15] package: enhance infrastructure to support source dir override

[Arnout Vandecappelle <arnout@mind.be>]

On Wednesday 31 August 2011 23:31:10, Thomas Petazzoni wrote:
> Those <pkg>_OVERRIDE_SRCDIR variables will be defined by a local
> makefile included by Buildroot, which will be handled in a later
> commit.

 Or on the make command line...

> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> ---
>  package/Makefile.package.in |   54
> +++++++++++++++++++++++++++++++++++++++++- 1 files changed, 52
> insertions(+), 2 deletions(-)
> 
> diff --git a/package/Makefile.package.in b/package/Makefile.package.in
> index 6dae8f7..1de2838 100644
> --- a/package/Makefile.package.in
> +++ b/package/Makefile.package.in
> @@ -251,6 +251,25 @@ $(BUILD_DIR)/%/.stamp_extracted:
>  	$(foreach hook,$($(PKG)_POST_EXTRACT_HOOKS),$(call $(hook))$(sep))
>  	$(Q)touch $@
> 
> +# Rsync the source directory if the <pkg>_OVERRIDE_SRCDIR feature is
> +# used.
> +$(BUILD_DIR)/%/.stamp_rsynced:
> +	@$(call MESSAGE,"Syncing from source dir $(SRCDIR)")
> +	@test -d $(SRCDIR) || (echo "ERROR: $(SRCDIR) does not exist" ; exit 1)
> +	rsync -au $(SRCDIR)/ $(@D)

 I use rsync -rltDO --exclude=.svn --exclude=.git:

 * -rltD instead of -a because I don't want to keep group, owner and 
permissions (otherwise you'll probably have to fixup permissions anyway).

 * -O because otherwise the directory times will be reset to the past, which 
does not correspond to reality if there are still object files lying around.  
If there would be a dependency on a directory, it will be incorrect.

 * --exclude=.git: if you're doing this for the kernel, you know why :-)  
There should probably be a --exclude=.hg as well.


 [snip]


 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
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