Subject: Re: [PATCH] SKIP_DASHED_BUILT_INS: do not skip the bin/ programs

From: Taylor Blau <[email-masked]>
Date: Wed, 21 Oct 2020 13:25:16 -0400

On Wed, Oct 21, 2020 at 03:13:31PM +0000, Johannes Schindelin via GitGitGadget wrote:
> From: Johannes Schindelin <[email-masked]>
>
> The idea of the `SKIP_DASHED_BUILT_INS` option is to stop hard-linking
> the built-in commands as separate executables. The patches to do that
> specifically excluded the three commands `receive-pack`,
> `upload-archive` and `upload-pack`, though: these commands are expected
> to be present in the `PATH` in their dashed form on the server side of
> any fetch/push.
>
> However, due to an oversight by myself, even if those commands were
> still hard-linked, they were not installed into `bin/`.
>
> Noticed-by: Michael Forney <[email-masked]>
> Signed-off-by: Johannes Schindelin <[email-masked]>
> ---
>     SKIP_DASHED_BUILT_INS: do not skip the bin/ programs
>
>     As reported by Michael in
>     https://lore.kernel.org/git/CAGw6cBsEjOnh-ZqXCPfFha=NYEdy7JDddha=[email-masked]
>     , the SKIP_DASHED_BUILT_INS feature had a bug I wish we had caught in
>     the -rc cycle. But at least SKIP_DASHED_BUILT_INS is still strictly
>     opt-in, so the damage is somewhat contained.
>
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-768%2Fdscho%2Fskip-dashed-built-ins-still-must-install-install_bindir_programs-v1
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-768/dscho/skip-dashed-built-ins-still-must-install-install_bindir_programs-v1
> Pull-Request: https://github.com/gitgitgadget/git/pull/768
>
>  Makefile | 15 ++++++---------
>  1 file changed, 6 insertions(+), 9 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 95571ee3fc..1fb0ec1705 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -2981,15 +2981,12 @@ endif
>  	} && \
>  	for p in $(filter $(install_bindir_programs),$(BUILT_INS)); do \

This does still install 'git-shell' into my installation's 'bin'
directory. I'm not up-to-date whether or not we mean to still be
installing that, but, doing the same 'SKIP_DASHED_BUILT_INS=1 make
install' on 'master' also installs git-shell, so I'm fine with that.

>  		$(RM) "$$bindir/$$p" && \
> -		if test -z "$(SKIP_DASHED_BUILT_INS)"; \
> -		then \
> -			test -n "$(INSTALL_SYMLINKS)" && \
> -			ln -s "git$X" "$$bindir/$$p" || \
> -			{ test -z "$(NO_INSTALL_HARDLINKS)" && \
> -			  ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \
> -			  ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \
> -			  cp "$$bindir/git$X" "$$bindir/$$p" || exit; }; \
> -		fi \
> +		test -n "$(INSTALL_SYMLINKS)" && \
> +		ln -s "git$X" "$$bindir/$$p" || \
> +		{ test -z "$(NO_INSTALL_HARDLINKS)" && \
> +		  ln "$$bindir/git$X" "$$bindir/$$p" 2>/dev/null || \
> +		  ln -s "git$X" "$$bindir/$$p" 2>/dev/null || \
> +		  cp "$$bindir/git$X" "$$bindir/$$p" || exit; }; \

OK. $(install_bindir_programs) is the set of programs that we want to
install; that makes sense. And for those, we definitely don't want to
skip them because SKIP_DASHED_BUILT_INS was set. So removing that test
makes sense to me.

>  	done && \
>  	for p in $(BUILT_INS); do \
>  		$(RM) "$$execdir/$$p" && \
>
> base-commit: a5fa49ff0a8f3252c6bff49f92b85e7683868f8a
> --
> gitgitgadget

Looks great, thanks for turning my thoughts into a real patch.

  Reviewed-by: Taylor Blau <[email-masked]>

Thanks,
Taylor