[RFC] builddeb: Try to determine distribution

[Sedat Dilek <sedat.dilek@gmail.com>]

This is based on ideas of me and Ben.
Thanks goes to Thorsten and Alexander for the vital help in 2012.

Like in my initial patch [1] lsb_release is used to determine
the short codename as distribution name for debian/changelog.

Ben gave some helpful and detailed information in [2].
There he also suggested to have an option to explicitly set the
distribution (see $KDEB_CHANGELOG_DIST variable).

I have hardcoded the script-name when the default distribution
is used. This is a bit ugly.

This patch is based on the snippet of Ben in [2] and tested
against Linux v3.19-rc2.

[1] https://lkml.org/lkml/2012/4/23/516
[2] http://marc.info/?l=linux-kbuild&m=142022188322321&w=2

CC: Ben Hutchings <ben@decadent.org.uk>
CC: maximilian attems <max@stro.at>
CC: Thorsten Glaser <tg@debian.org>
CC: Alexander Wirt <formorer@debian.org>
CC: Michal Marek <mmarek@suse.cz>
CC: linux-kbuild@vger.kernel.org
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
---
 scripts/package/builddeb | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 5972624..be1f4d7 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -217,9 +217,21 @@ else
 fi
 maintainer="$name <$email>"
 
+# Try to determine distribution
+codename=$(lsb_release --codename --short)
+if [ -n "$KDEB_CHANGELOG_DIST" ]; then
+        distribution=$KDEB_CHANGELOG_DIST
+elif [ -n "$codename" ]; then
+        distribution=$codename
+else
+        distribution="unstable"
+        echo "builddeb: Using default distribution of 'unstable' in the changelog"
+        echo "builddeb: Install lsb-release or set \$KDEB_CHANGELOG_DIST to change this"
+fi
+
 # Generate a simple changelog template
 cat <<EOF > debian/changelog
-linux-upstream ($packageversion) unstable; urgency=low
+linux-upstream ($packageversion) $distribution; urgency=low
 
   * Custom built Linux kernel.
 
-- 
2.2.1