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|
#!/bin/sh
#
# get-packages <type> <package> ... | <update> ...
#
# Download deb or udeb package with the help of apt-get
# type : deb | udeb
#
# Files:
# sources.list.udeb / sources.list.udeb.local
# sources.list.deb / sources.list.deb.local
# preferences.udeb.local
# preferences.deb.local
#
# Environment:
# APTDIR - basename for the apt directory (default: apt.$TYPE)
# DEBUG - build debug udebs from source (default: n)
# DEBUGUDEBDIR - directory for debug udebs (default: debugudebs)
# UDEBDIR - directory for ready-to-use udebs (default: udebs)
# LOCALUDEBDIR - directory for locally provided udebs (default: localudebs)
# ONLINE - update Packages files (default: y)
set -e
# parse parameters
TYPE=$1
shift
PACKAGES=$*
# Setup environment
if [ ! $APTDIR ]; then
APTDIR="apt"
fi
if [ ! $DEBUGUDEBDIR ]; then
DEBUGUDEBDIR="debugudebs"
fi
if [ ! $UDEBDIR ]; then
UDEBDIR="udebs"
fi
if [ ! $LOCALUDEBDIR ]; then
LOCALUDEBDIR="localudebs"
fi
if [ ! $ONLINE ]; then
ONLINE="y"
fi
if [ ! $KEYRING ]; then
KEYRING=/etc/apt/trusted.gpg
fi
if [ ! -e "$LOCALUDEBDIR" ]; then
mkdir -p "$LOCALUDEBDIR"
fi
# Set APTDIR according to type
# debs are kept in another apt cache so only the needed Packages files
# are downloaded and autoclean doesnt run wild.
APTDIR=$APTDIR.$TYPE
# Set sources.list file
if [ -f sources.list.$TYPE.local ]; then
LIST=sources.list.$TYPE.local
else
LIST=sources.list.$TYPE
make sources.list.$TYPE
fi
# localudebs support
apt-ftparchive packages $LOCALUDEBDIR > $LOCALUDEBDIR/Packages
cat $LOCALUDEBDIR/Packages | gzip > $LOCALUDEBDIR/Packages.gz
if [ -s $LOCALUDEBDIR/Packages ]; then
echo "*" >&2
echo "* Warning: Building with localudebs." >&2
echo "* This build should not be used for official purposes." >&2
echo "*" >&2
fi
# All these options make apt read the right sources list, and use APTDIR for
# everything so it need not run as root.
APT_GET="apt-get --assume-yes \
-o Dir::Etc::sourcelist=`pwd`/$LIST \
-o Dir::Etc::sourceparts=/dev/null \
-o Dir::Etc::Preferences=`pwd`/preferences.$TYPE.local \
-o Dir::State=`pwd`/$APTDIR/state \
-o Debug::NoLocking=true \
-o Debug::pkgDepCache::AutoInstall=true \
-o Dir::Cache=`pwd`/$APTDIR/cache \
-o Acquire::Retries=3 \
-o APT::Install-Recommends=false
-o Apt::Architecture=`dpkg-architecture -qDEB_HOST_ARCH` \
-o Dir::Etc::trusted="$KEYRING"
"
# Prepare APTDIR
mkdir -p $APTDIR/state/lists/partial
mkdir -p $APTDIR/state/mirrors/partial
mkdir -p $APTDIR/cache/archives/partial
echo -n > $APTDIR/state/status
if [ "$TYPE" = "deb" ]; then
APT_GET="$APT_GET -o Dir::State::Status=`pwd`/$APTDIR/state/status"
else
# Prime status file with a few system libraries that don't
# currently have udebs, or which udebs still depend on for various
# reasons.
echo -n > $APTDIR/state/status
# dpkg -s needs to be passed arch-qualified package names to
# avoid ambiguity.
if dpkg --assert-multi-arch; then
arch_qualifier=:$DEB_HOST_ARCH
fi
# Some archs have libc6, others have libc6.1. libgcc1 is not used
# on all architectures.
# NOTE: Please keep the edos udeb checker in sync with this list:
for i in libc0.1 libc0.3 libc6 libc6.1 libnewt0.52 libgcc1; do
if dpkg -s $i$arch_qualifier >/dev/null 2>&1; then
dpkg -s $i$arch_qualifier | grep -v Depends: >> $APTDIR/state/status
echo >> $APTDIR/state/status
fi
done
APT_GET="$APT_GET -o Dir::State::Status=`pwd`/$APTDIR/state/status"
fi
# Update package lists and autoclean cache.
if [ "$ONLINE" = "y" ]; then
$APT_GET update || {
echo "Failed to update the Packages file. This usually means either of:"
echo
echo "A) $LIST does not contain a valid repository."
echo " You can override the generated sources.list.$TYPE"
echo " with sources.list.$TYPE.local if you haven't done so yet."
echo
echo "B) The repository in $LIST is not reachable."
echo " If you are not working online, use 'export ONLINE=n' to skip updating"
echo " the Packages files. Beware that this can result in images with"
echo " out-of-date packages and should be used for private development only."
exit 1
}
$APT_GET autoclean
else
# A Release.gpg may not be cached, allow continuing w/o it in
# offline mode.
APT_GET="$APT_GET --allow-unauthenticated"
$APT_GET --no-list-cleanup update || echo "Ignoring update failure in offline mode"
fi
if [ "$PACKAGES" = update ]; then
exit 0
fi
# We do Kernel-Version filtering in pkg-list as well, but for some reason
# apt pulls in multiple providers of virtual packages unnecessarily which
# causes problems.
if [ "$KERNELVERSION" ]; then
for packages in `find $APTDIR/state -maxdepth 2 -type f -name \*_Packages ! -name \*_localudebs_Packages -print`; do
KV_COND=
for KV in $KERNELVERSION; do
KV_COND="${KV_COND:+$KV_COND }-o -XFKernel-Version $KV"
done
grep-dctrl -! -rFKernel-Version . $KV_COND "$packages" > "$packages.tmp" || true
ln "$packages" "$packages.orig"
mv "$packages.tmp" "$packages"
done
# Ensure the original Packages files get restored
cleanup () {
for file in `find $APTDIR/state -maxdepth 2 -type f -name \*_Packages.orig -print`; do
mv "$file" "${file%.orig}" || true
done
}
trap cleanup EXIT HUP INT QUIT TERM
fi
# Get udebs.
if [ "$DEBUG" = y ]; then
mkdir -p $DEBUGUDEBDIR
cd $DEBUGUDEBDIR
export DEB_BUILD_OPTIONS="debug"
$APT_GET source --build --yes $PACKAGES
cd ..
else
echo Need to download: $PACKAGES
if [ -n "$PACKAGES" ]; then
$APT_GET -dy install $PACKAGES
fi
fi
# Now the (u)debs are in APTDIR/cache/archives/ (and maybe DEBUGUDEBDIR)
# but there may be other (u)debs there too besides those we asked for. So
# link those we asked for to UDEBDIR, renaming them to more useful names.
rm -rf $UDEBDIR
mkdir -p $UDEBDIR
lnpkg() {
local pkg=$1; local dir=$2 debdir=$3
local L LV l lv
for l in `find $dir -name "${pkg}_*" 2>/dev/null`; do
lv=$(dpkg -f "$l" Version); lv=${lv%"Version: "}
if dpkg --compare-versions "$lv" gt "$LV"; then
L=$l LV=$lv
fi
done
if [ -e "$L" ]; then
ln -f $L $debdir/$pkg.$TYPE
fi
}
for package in $PACKAGES; do
lnpkg $package $APTDIR/cache/archives $UDEBDIR
lnpkg $package $DEBUGUDEBDIR $UDEBDIR
if [ ! -e $UDEBDIR/$package.$TYPE ]; then
echo "Needed $package not found (looked in $APTDIR/cache/archives/, $DEBUGUDEBDIR/)";
exit 1
fi
done
|
