[PATCH v2] make: add install-stripped target

[Bagas Sanjaya <bagasdotme@gmail.com>]

Add the target that install Git with stripped executables.

install and install-stripped share the almost-same recipe, with the
difference only on passing arguments to $(INSTALL). In order for this to
work properly, installing all programs ($(ALL_PROGRAMS) and
$(install_bindir_programs)) must be splitted into compiled programs and
scripts install portion. For compiled programs, pass $(INSTALL_OPTS),
since stripping is only meaningful for them and not scripts.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
---

 Changes from v1:
 - Share recipes between install-stripped and install targets (suggested
   by Junio)
 - Don't delete 'strip' target. There may exist scripts that depend on
   that target. Once this patch is integrated, deprecation notice can
   be displayed when running the target, but it is done in separate
   patch.

 [1]:
https://lore.kernel.org/git/20210826113824.50078-1-bagasdotme@gmail.com/T/#t

 Makefile | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index d1feab008f..73a97d952c 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 +3014,21 @@ profile-install: profile
 profile-fast-install: profile-fast
 	$(MAKE) install
 
-install: all
+INSTALL_OPTS :=
+
+.PHONY: install-stripped
+
+install-stripped: INSTALL_OPTS = -s --strip-program=$(STRIP)
+
+install-stripped 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.

base-commit: c4203212e360b25a1c69467b5a8437d45a373cac
-- 
2.25.1