linux-kernel - [PATCH 2/2] kbuild: deb-pkg: add KDEB_SOURCE

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Message-Id: <20230417142548.249610-2-masahiroy@kernel.org>
Date:   Mon, 17 Apr 2023 23:25:48 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Ben Hutchings <ben@...adent.org.uk>,
        Bastian Germann <bage@...utronix.de>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>
Subject: [PATCH 2/2] kbuild: deb-pkg: add KDEB_SOURCE_COMPRESS to specify compression type

Add KDEB_SOURCE_COMPRESS to specify the compression for the orig and
debian tarballs. (The existing KDEB_COMPRESS is used to specify the
compression for binary packages.)

Supported algorithms are gzip, bzip2, lzma, and xz, all of which are
supported by dpkg-source.

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

 scripts/Makefile.package | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index d8a36304b26e..ce3d8b4e9cb0 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -41,19 +41,25 @@ check-git:
 		false; \
 	fi
 
-git-config-tar.gz  = -c tar.tar.gz.command="$(KGZIP)"
-git-config-tar.bz2 = -c tar.tar.bz2.command="$(KBZIP2)"
-git-config-tar.xz  = -c tar.tar.xz.command="$(XZ)"
-git-config-tar.zst = -c tar.tar.zst.command="$(ZSTD)"
+git-config-tar.gz   = -c tar.tar.gz.command="$(KGZIP)"
+git-config-tar.bz2  = -c tar.tar.bz2.command="$(KBZIP2)"
+git-config-tar.lzma = -c tar.tar.lzma.command="$(LZMA)"
+git-config-tar.xz   = -c tar.tar.xz.command="$(XZ)"
+git-config-tar.zst  = -c tar.tar.zst.command="$(ZSTD)"
 
 quiet_cmd_archive = ARCHIVE $@
       cmd_archive = git -C $(srctree) $(git-config-tar$(suffix $@)) archive \
                     --output=$$(realpath $@) --prefix=$(basename $@)/ $(archive-args)
 
+suffix-gzip  := .gz
+suffix-bzip2 := .bz2
+suffix-lzma  := .lzma
+suffix-xz    := .xz
+
 # Linux source tarball
 # ---------------------------------------------------------------------------
 
-linux-tarballs := $(addprefix linux, .tar.gz)
+linux-tarballs := $(addprefix linux, .tar.gz .tar.bz2 .tar.lzma .tar.xz)
 
 targets += $(linux-tarballs)
 $(linux-tarballs): archive-args = $$(cat $<)
@@ -88,6 +94,15 @@ binrpm-pkg:
 # deb-pkg srcdeb-pkg bindeb-pkg
 # ---------------------------------------------------------------------------
 
+KDEB_SOURCE_COMPRESS ?= gzip
+
+PHONY += linux.tar.unsupported_deb_compress
+linux.tar.unsupported_deb_compress:
+	@echo "error: $(KDEB_SOURCE_COMPRESS): unsupported debian source compression" >&2
+	@false
+
+debian-orig-suffix := $(if $(filter gzip bzip2 lzma xz, $(KDEB_SOURCE_COMPRESS)),$(suffix-$(KDEB_SOURCE_COMPRESS)),.unsupported_deb_compress)
+
 quiet_cmd_debianize = GEN     $@
       cmd_debianize = $(srctree)/scripts/package/mkdebian $(mkdebian-opts)
 
@@ -97,9 +112,9 @@ debian: FORCE
 PHONY += debian-orig
 debian-orig: private source = $(shell dpkg-parsechangelog -S Source)
 debian-orig: private version = $(shell dpkg-parsechangelog -S Version | sed 's/-[^-]*$$//')
-debian-orig: private orig-name = $(source)_$(version).orig.tar.gz
+debian-orig: private orig-name = $(source)_$(version).orig.tar$(debian-orig-suffix)
 debian-orig: mkdebian-opts = --need-source
-debian-orig: linux.tar.gz debian
+debian-orig: linux.tar$(debian-orig-suffix) debian
 	$(Q)if [ "$(df  --output=target .. 2>/dev/null)" = "$(df --output=target $< 2>/dev/null)" ]; then \
 		ln -f $< ../$(orig-name); \
 	else \
@@ -120,7 +135,7 @@ deb-pkg srcdeb-pkg bindeb-pkg:
 	+$(strip dpkg-buildpackage \
 	--build=$(build-type) --no-pre-clean --unsigned-changes \
 	$(if $(findstring source, $(build-type)), \
-		--unsigned-source) \
+		--unsigned-source --compression=$(KDEB_SOURCE_COMPRESS)) \
 	$(if $(findstring binary, $(build-type)), \
 		-r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch), \
 		--no-check-builddeps) \
-- 
2.37.2