linux-kernel - [PATCH 3/3] kbuild: do not create intermediate *.tar for tar packages

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Message-Id: <20230407101629.1298051-3-masahiroy@kernel.org>
Date:   Fri,  7 Apr 2023 19:16:29 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nick Terrell <terrelln@...com>,
        Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH 3/3] kbuild: do not create intermediate *.tar for tar packages

Commit 05e96e96a315 ("kbuild: use git-archive for source package
creation") split the compression as a separate step to factor out
the common build rules.

With the previous commit, we got back to the situation where
compressed source tarballs are created by a single rule.
There is no reason to keep the separate compression rules.

Generate the comressed tar packages directly.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---

 scripts/Makefile.package | 27 +++++++++------------------
 1 file changed, 9 insertions(+), 18 deletions(-)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 7707975f729b..e0e18d7dfbd5 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -2,7 +2,6 @@
 # Makefile for the different targets used to generate full packages of a kernel
 
 include $(srctree)/scripts/Kbuild.include
-include $(srctree)/scripts/Makefile.lib
 
 KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
 KBUILD_PKG_ROOTCMD ?="fakeroot -u"
@@ -27,21 +26,6 @@ fi ; \
 tar -I $(KGZIP) -c $(RCS_TAR_IGNORE) -f $(2).tar.gz \
 	--transform 's:^:$(2)/:S' $(TAR_CONTENT) $(3)
 
-# tarball compression
-# ---------------------------------------------------------------------------
-
-%.tar.gz: %.tar
-	$(call cmd,gzip)
-
-%.tar.bz2: %.tar
-	$(call cmd,bzip2)
-
-%.tar.xz: %.tar
-	$(call cmd,xzmisc)
-
-%.tar.zst: %.tar
-	$(call cmd,zstd)
-
 # Git
 # ---------------------------------------------------------------------------
 
@@ -153,10 +137,17 @@ tar-install: FORCE
 	$(Q)$(MAKE) -f $(srctree)/Makefile
 	+$(Q)$(srctree)/scripts/package/buildtar $@
 
+compress-tar.gz  = -I "$(KGZIP)"
+compress-tar.bz2 = -I "$(KBZIP2)"
+compress-tar.xz  = -I "$(XZ)"
+compress-tar.zst = -I "$(ZSTD)"
+
 quiet_cmd_tar = TAR     $@
-      cmd_tar = cd $<; tar cf ../$@ --owner=root --group=root --sort=name *
+      cmd_tar = cd $<; tar cf ../$@ $(compress-tar$(suffix $@)) --owner=root --group=root --sort=name *
+
+dir-tarballs := $(addprefix linux-$(KERNELRELEASE)-$(ARCH), .tar .tar.gz .tar.bz2 .tar.xz .tar.zst)
 
-linux-$(KERNELRELEASE)-$(ARCH).tar: tar-install
+$(dir-tarballs): tar-install
 	$(call cmd,tar)
 
 PHONY += dir-pkg
-- 
2.37.2