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kbuild: deb-pkg: make .orig tarball a hard link if possible

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If '..' belongs to the same filesystem, create a hard link instead of
a copy. In most cases, you can save disk space.

I do not want to use 'mv' because keeping linux.tar.gz is useful to
avoid unneeded rebuilding of the tarball.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
This commit is contained in:
Masahiro Yamada 2023-02-15 10:20:28 +09:00
parent 6eabebb1b6
commit b44aa8c96e
1 changed files with 5 additions and 1 deletions
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6
scripts/Makefile.package
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@ -96,7 +96,11 @@ 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: linux.tar.gz debian
$(Q)cp $< ../$(orig-name)
$(Q)if [ "$(df --output=target .. 2>/dev/null)" = "$(df --output=target $< 2>/dev/null)" ]; then \
ln -f $< ../$(orig-name); \
else \
cp $< ../$(orig-name); \
fi
PHONY += deb-pkg
deb-pkg: debian-orig