[Rd] [PATCH] Makefile: add support for git svn clones

[Duncan Murdoch]

On 19/01/2015 2:33 PM, Felipe Balbi wrote:
> git has an interface for cloning SVN repositories into git which
> some users might decide to use. For those users' surprise, the
> repository will always fail to build on svnonly target and it will
> exit early.
> 
> The problem is simple enough to fix by just checking if a .git
> directory exists in top_builddir and, if so, call git svn info insstead
> of svn info.
> 

I think we are unlikely to accept this change.  Nobody in R Core uses
git this way, so it would never be tested, and would likely soon fail.
Indeed, it already fails if someone were to try it on Windows, since you
didn't patch the makefiles for that platform.

The R sources are kept in an SVN repository, and as long as that's true,
we're only likely to support direct SVN access.

Duncan Murdoch




> Signed-off-by: Felipe Balbi <balbi at kernel.org>
> ---
> 
> Resending the patch as I believe the previous version didn't
> reach the mailing list.
> 
>  Makefile.in | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/Makefile.in b/Makefile.in
> index 44b0a3b4b99f..221c437972ad 100644
> --- a/Makefile.in
> +++ b/Makefile.in
> @@ -9,6 +9,9 @@ top_builddir = .
>  
>  include $(top_builddir)/Makeconf
>  
> +GIT := $(shell if [ -d "$(top_builddir)/.git" ]; then \
> +	echo "git"; fi)
> +
>  distdir = $(PACKAGE)-$(VERSION)
>  INSTFILES = COPYING
>  NON_SVN_INSTFILES = SVN-REVISION
> @@ -104,7 +107,7 @@ svnonly:
>  	@if test ! -f "$(srcdir)/doc/FAQ" || test -f non-tarball ; then \
>  	  (cd doc/manual && $(MAKE) front-matter html-non-svn) ; \
>  	  touch non-tarball ; \
> -	  (cd $(srcdir); LC_ALL=C TZ=GMT svn info || $(ECHO) "Revision: -99") 2> /dev/null \
> +	  (cd $(srcdir); LC_ALL=C TZ=GMT $(GIT) svn info || $(ECHO) "Revision: -99") 2> /dev/null \
>  	    | sed -n -e '/^Revision/p' -e '/^Last Changed Date/'p \
>  	    | cut -d' ' -f1,2,3,4 > SVN-REVISION-tmp ; \
>  	  if test "`cat SVN-REVISION-tmp`" = "Revision: -99"; then \
>