diff mbox series

[1/2] make: add install-stripped target

Message ID 20210826113824.50078-2-bagasdotme@gmail.com (mailing list archive)
State New, archived
Headers show
Series make: install stripped Git | expand

Commit Message

Bagas Sanjaya Aug. 26, 2021, 11:38 a.m. UTC
Add the target that install Git with stripped executables

The executables that are going to be stripped are all of $(PROGRAMS) and
git. Because they are installed over various directories (bin and
libexec/git-core) within installation prefix, the location of each
program needs to be found and pass it to $(STRIP) program.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---
 Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Junio C Hamano Aug. 26, 2021, 8:08 p.m. UTC | #1
Bagas Sanjaya <bagasdotme@gmail.com> writes:

> +install-stripped: install
> +	for f in $(PROGRAMS) git$X; do \
> +		find $$prefix -type f -name $$f -exec $(STRIP) $(STRIP_OPTS) {} \; ; \
> +	done
> +

This sounds awfully wasteful.

The recipe for the install target knows exactly each of these
programs are installed, but yet the above is running around inside
$prefix to find them after the fact.

It also looks incorrect, too.

It is not guaranteed that $prefix does not contain any $IFS
whitespace in it, and worse yet, $prefix may not contain $bindir or
$libexecdir in it, so find may never reach these binaries.

It also depends on "strip" not to break handlinks to the same
binary.  "git" is linked to many built-in command binary like
"git-cat-file" and "git-remote-$curl" for various protocols are
installed by creating links to "git-remote-http".  It seems that the
"strip" command from GNU binutils package strips such a binary
in-place, but I do not think there is no fundamental reason to
believe that everybody else's "strip" would behave that way.

I would have expected that 'install-stripped' and 'install' targets
would run the same recipe, and when $(install_bindir_programs) are
installed in $(bindir) using $(INSTALL), we would optionally pass
the '--strip' option to the $(INSTALL) program when the recipe is
run for the install-stripped target.  All the tricky symlinking,
hardlinking and copying happens only on the result of that step, and
the strip step should happen before that, I would think.

> +.PHONY: install-gitweb install-doc install-man install-man-perl install-html install-info install-pdf install-stripped

Split the overly long line like this into two or more.

>  .PHONY: quick-install-doc quick-install-man quick-install-html
>  install-gitweb:
>  	$(MAKE) -C gitweb install
Bagas Sanjaya Aug. 27, 2021, 7:57 a.m. UTC | #2
On 27/08/21 03.08, Junio C Hamano wrote:
> It also depends on "strip" not to break handlinks to the same
> binary.  "git" is linked to many built-in command binary like
> "git-cat-file" and "git-remote-$curl" for various protocols are
> installed by creating links to "git-remote-http".  It seems that the
> "strip" command from GNU binutils package strips such a binary
> in-place, but I do not think there is no fundamental reason to
> believe that everybody else's "strip" would behave that way.
> 

Maybe hardlinks?

> I would have expected that 'install-stripped' and 'install' targets
> would run the same recipe, and when $(install_bindir_programs) are
> installed in $(bindir) using $(INSTALL), we would optionally pass
> the '--strip' option to the $(INSTALL) program when the recipe is
> run for the install-stripped target.  All the tricky symlinking,
> hardlinking and copying happens only on the result of that step, and
> the strip step should happen before that, I would think.
> 

Did you mean copying recipe of 'install' to 'install-stripped' and the 
latter s/$(INSTALL)/$(INSTALL -s --strip-program="$(STRIP)"/)?
Đoàn Trần Công Danh Aug. 27, 2021, 12:41 p.m. UTC | #3
On 2021-08-27 14:57:56+0700, Bagas Sanjaya <bagasdotme@gmail.com> wrote:
> On 27/08/21 03.08, Junio C Hamano wrote:
> > It also depends on "strip" not to break handlinks to the same
> > binary.  "git" is linked to many built-in command binary like
> > "git-cat-file" and "git-remote-$curl" for various protocols are
> > installed by creating links to "git-remote-http".  It seems that the
> > "strip" command from GNU binutils package strips such a binary
> > in-place, but I do not think there is no fundamental reason to
> > believe that everybody else's "strip" would behave that way.
> > 
> 
> Maybe hardlinks?
> 
> > I would have expected that 'install-stripped' and 'install' targets
> > would run the same recipe, and when $(install_bindir_programs) are
> > installed in $(bindir) using $(INSTALL), we would optionally pass
> > the '--strip' option to the $(INSTALL) program when the recipe is
> > run for the install-stripped target.  All the tricky symlinking,
> > hardlinking and copying happens only on the result of that step, and
> > the strip step should happen before that, I would think.
> > 
> 
> Did you mean copying recipe of 'install' to 'install-stripped' and the
> latter s/$(INSTALL)/$(INSTALL -s --strip-program="$(STRIP)"/)?

I think Junio meant something like this:

---- 8< ----

diff --git a/Makefile b/Makefile
index 429c276058..70b7ef9ce1 100644
--- a/Makefile
+++ b/Makefile
@@ -3004,7 +3004,8 @@ mergetools_instdir = $(prefix)/$(mergetoolsdir)
 endif
 mergetools_instdir_SQ = $(subst ','\'',$(mergetools_instdir))
 
-install_bindir_programs := $(patsubst %,%$X,$(BINDIR_PROGRAMS_NEED_X)) $(BINDIR_PROGRAMS_NO_X)
+install_bindir_xprograms := $(patsubst %,%$X,$(BINDIR_PROGRAMS_NEED_X))
+install_bindir_programs := $(install_bindir_xprograms) $(BINDIR_PROGRAMS_NO_X)
 
 .PHONY: profile-install profile-fast-install
 profile-install: profile
@@ -3013,12 +3014,18 @@ profile-install: profile
 profile-fast-install: profile-fast
 	$(MAKE) install
 
-install: all
+INSTALL_OPTS :=
+
+install-strip: INSTALL_OPTS := -s --strip-program=$(STRIP)
+
+install-strip install: all
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
-	$(INSTALL) $(ALL_PROGRAMS) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+	$(INSTALL) $(INSTALL_OPTS) $(PROGRAMS) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+	$(INSTALL) $(SCRIPTS) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
 	$(INSTALL) -m 644 $(SCRIPT_LIB) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
-	$(INSTALL) $(install_bindir_programs) '$(DESTDIR_SQ)$(bindir_SQ)'
+	$(INSTALL) $(INSTALL_OPTS) $(install_bindir_xprograms) '$(DESTDIR_SQ)$(bindir_SQ)'
+	$(INSTALL) $(BINDIR_PROGRAMS_NO_X) '$(DESTDIR_SQ)$(bindir_SQ)'
 ifdef MSVC
 	# We DO NOT install the individual foo.o.pdb files because they
 	# have already been rolled up into the exe's pdb file.
---- >8 -----
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index d1feab008f..b8a3a64422 100644
--- a/Makefile
+++ b/Makefile
@@ -3102,7 +3102,12 @@  endif
 	done && \
 	./check_bindir "z$$bindir" "z$$execdir" "$$bindir/git-add$X"
 
-.PHONY: install-gitweb install-doc install-man install-man-perl install-html install-info install-pdf
+install-stripped: install
+	for f in $(PROGRAMS) git$X; do \
+		find $$prefix -type f -name $$f -exec $(STRIP) $(STRIP_OPTS) {} \; ; \
+	done
+
+.PHONY: install-gitweb install-doc install-man install-man-perl install-html install-info install-pdf install-stripped
 .PHONY: quick-install-doc quick-install-man quick-install-html
 install-gitweb:
 	$(MAKE) -C gitweb install