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Subject[PATCH v2 3/3] package: {mkdebian,Makefile}: ignore .config in dpkg-source diffs
* We'd like to make dpkg-source ignore certain filepath patterns while
producing the .diff.gz as part of a Debian source package.
The relationship between dpkg-source's -i and --extend-diff-ignore
options is quite complicated[1]. It's thus not very convenient to
specify file path patterns to ignore on dpkg-buildpackage's command
line (they do not end up in the source package as well), so we turn
`-i.git' into a record in debian/source/options.
Besides, the dot in `-i.git' is a metacharacter and matches a tad
too much.

* In cases where a .config exists in the source tree, but the .config
in the source tarball is provided by wherever KCONFIG_CONFIG pointed
to, dpkg-source would attempt to replace the second, proper one with
the first one, which is undesirable and nullifies the effort made
to put the proper config in the source tarball.
To prevent this, force dpkg-source to ignore /^[.]config$/ as well.

This makes it possible to build working Debian source packages with a
- that file is put in the source tarball at its traditional place,
and the diff.gz does not dare touch it;
- when the source package is rebuilt, debian/rules initiates the build
process with the desired config already in the standard location.


Signed-off-by: Arseny Maslennikov <>
scripts/package/Makefile | 2 +-
scripts/package/mkdebian | 6 ++++++
2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 134cefee068d..f2fca7e7d9fa 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -73,7 +73,7 @@ deb-pkg: FORCE
$(call cmd,src_tar,$(KDEB_SOURCENAME))
origversion=$$(dpkg-parsechangelog -SVersion |sed 's/-[^-]*$$//');\
mv $(KDEB_SOURCENAME).tar.gz ../$(KDEB_SOURCENAME)_$${origversion}.orig.tar.gz
- +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) -i.git -us -uc
+ +dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) -us -uc

bindeb-pkg: FORCE
$(CONFIG_SHELL) $(srctree)/scripts/package/mkdebian
diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index d276eb671a27..74158c7f28ea 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -135,6 +135,12 @@ fi
mkdir -p debian/source/
echo "1.0" > debian/source/format

+cat <<EOF > debian/source/options
+# The regexes are matched against paths from the source tree.
+diff-ignore = "[.]git"
+extend-diff-ignore = "^[.]config$"
echo $debarch > debian/arch

# Generate a simple changelog template
 \ /
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