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

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Message-ID: <20230407181223.GD1018455@dev-arch.thelio-3990X>
Date:   Fri, 7 Apr 2023 11:12:23 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nick Terrell <terrelln@...com>,
        Nicolas Schier <nicolas@...sle.eu>
Subject: Re: [PATCH 3/3] kbuild: do not create intermediate *.tar for tar
 packages

On Fri, Apr 07, 2023 at 07:16:29PM +0900, Masahiro Yamada wrote:
> 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>

Reviewed-by: Nathan Chancellor <nathan@...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
>