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|
#! /bin/sh
#
# Prepares to build kernel modules. This script figures out and munges
# version strings. The goal is:
#
# * Set the package name to openafs-modules-$(KVERS) where $(KVERS) is the
# major kernel revision plus the debian subrevision and whatever
# architecture string is appropriate if building against the stock Debian
# kernels. $(KVERS) should be identical to the version component contained
# in the Debian kernel package names.
#
# * Make the package recommend either kernel-image-$(KVERS) or
# linux-image-$(KVERS) as appropriate for the kernel version that we're
# building against. Use recommend rather than depends since the user may
# have built their own kernel outside of the Debian package infrastructure.
#
# * Save the version number of the binary package in debian/VERSION for later
# use by dh_gencontrol. This will be the version number of the source
# package followed by a + and the version number of the kernel package that
# we're building against. If the kernel package version contains an epoch,
# try to hack our way into doing the right thing by using that epoch number
# as our own. This isn't quite the right thing, but seems reasonably good.
#
# This script generates debian/control from debian/control.module using sed.
# Unfortunately, substvars cannot be used since the name of the package is
# modified and substvars happens too late. It also outputs debian/VERSION,
# containing the version of the binary package.
set -e
if [ "$#" -ne 1 ]; then
echo Usage: $0 kernelsource-location
exit 1
fi
# We can get the kernel version from one of three places. If KVERS and KDREV
# are both already set in the environment (which will be the case when invoked
# by make-kpkg or module-assistant), use them. Otherwise, if we have a kernel
# source directory that contains debian/changelog (generated by make-kpkg),
# parse that file to find the version information. Finally, if neither works,
# extract the kernel version from the kernel headers, append INT_SUBARCH to
# that version if it's available, and assume a kernel package revision of -0
# if none is provided.
#
# Set the variables $afs_kvers, which will hold the revision of the kernel,
# and $afs_kdrev, which will hold the version of the kernel package that we're
# building against.
changelog="$1/debian/changelog"
if [ -n "$KVERS" ] && [ -n "$KDREV" ]; then
afs_kvers="${KVERS}${INT_SUBARCH}"
afs_kdrev="${KDREV}"
elif [ ! -f "$changelog" ] ; then
if [ -n "$KVERS" ] ; then
afs_kvers="$KVERS"
else
afs_kvers=`perl debian/kernel-version "$1"`
fi
if [ -z "$KDREV" ] ; then
afs_kdrev="${afs_kvers}-0"
else
afs_kvers="${afs_kvers}${INT_SUBARCH}"
afs_kdrev="${KDREV}"
fi
else
if [ -n "$KVERS" ] ; then
afs_kvers="$KVERS"
else
afs_kvers=`head -1 "$changelog" \
| sed -e 's/.*source-\([^ ]*\) (\([^)]*\)).*/\1/'`
fi
afs_kdrev=`head -1 "$changelog" \
| sed -e 's/.*source-\([^ ]*\) (\([^)]*\)).*/\2/'`
fi
# Determine the kernel package name. For right now, assume linux-image for
# 2.6.12 and later, and kernel-image for anything earlier. If this doesn't
# work for someone, please submit a bug with the details.
if dpkg --compare-versions "$afs_kvers" ge "2.6.12" ; then
afs_image=linux-image
else
afs_image=kernel-image
fi
# Generate the control file from the template.
sed -e "s/=KVERS/${afs_kvers}/g" -e "s/=IMG/${afs_image}/g" \
debian/control.module > debian/control
# Now, calcuate the binary package version. Extract the epoch from the kernel
# package revision and add it to the beginning of the binary package version
# if present. Then, concatenate the source version, '+', and the kernel
# package revision without the epoch.
afs_version=`head -1 debian/changelog | sed -e 's/.*(\([^)]*\)).*/\1/'`
afs_epoch=`echo ${afs_kdrev} | sed -n -e 's/^\([0-9]*\):.*/\1/p'`
afs_version="${afs_version}+`echo ${afs_kdrev} | sed -e 's/^[0-9]*://'`"
if [ -n "$afs_epoch" ] ; then
afs_version="${afs_epoch}:${afs_version}"
fi
echo "$afs_version" > debian/VERSION
|
