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#!/bin/bash
# pbuilder -- personal Debian package builder
# Copyright (C) 2001,2002,2003,2005-2007 Junichi Uekawa
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# module to satisfy build dependencies; default flavor
# The original pbuilder-satisfydepends code, which is now called 'classic'
set -e
export PBUILDER_PKGLIBDIR="${PBUILDER_PKGLIBDIR:-$PBUILDER_ROOT/usr/lib/pbuilder}"
. "$PBUILDER_PKGLIBDIR"/pbuilder-satisfydepends-funcs
# splits lines of deps (possibly with alternates) separated by commas into one
# dep (possibly with alternates) per line; also changes all spaces to slashes
# first as to iterate on deps with "for"; e.g. "foo, bar | baz", "foobar (>=
# 2)" becomes "foo", "bar/|/baz", "foobar/(>=/2)"
split_deps() {
sed 's#, *#\n#g; s# #/#g'
}
# and build-conflicts
# splits build-dep with alternates into one alternate per line; e.g. "foo|bar"
# becomes "foo", "bar"
split_alternates() {
echo "$*" | sed 's/ *| */\n/g'
}
# filters package name out of a "/" escaped simple build-dep, possibly with
# architecture or version specifier; e.g. "/foo/(>=/2)/[i386/amd64]" becomes
# "foo"
get_pkg_name() {
echo "$*" | sed 's#^/*##; s#[[/(].*##'
}
# filter operator and version of a "/" escaped versioned build-dep; e.g.
# "foo/(>=/2)" becomes ">= 2"
get_dep_op_and_ver() {
echo "$*" | sed -n 's#/# #g; s/.*( *\(<<\|<=\|>=\|=\|<\|>>\|>\) *\([^ )]*\) *).*/\1 \2/p'
}
# call apt-get in chroot in simulate mode
apt_sim() {
$CHROOTEXEC /usr/bin/apt-get -s install "$@"
}
# Use this function to fulfill the dependency (almost)
checkbuilddep_internal() {
local ARCH=$($CHROOTEXEC dpkg-architecture -qDEB_HOST_ARCH)
local INSTALLPKG
local INSTALLPKGLIST
local INSTALLPKGMULTI
local CURRENTREALPKGNAME
local SATISFIED
local APTFLAG="-o APT::Install-Recommends=false"
echo " -> Attempting to parse the build-deps "
for INSTALLPKGMULTI in $(get_build_deps | split_deps); do
echo " -> Considering build-dep$(echo "$INSTALLPKGMULTI" | tr "/" " " )"
SATISFIED="no"
for INSTALLPKG in $(split_alternates "$INSTALLPKGMULTI"); do
CURRENTREALPKGNAME=$(get_pkg_name "$INSTALLPKG")
if echo "$INSTALLPKG" | grep -q '\['; then
if checkbuilddep_archdeps "$INSTALLPKG" "$ARCH"; then
SATISFIED="yes"
echo " -> This package is not for this architecture"
continue
fi
fi
if echo "$INSTALLPKG" | grep -q '('; then
#echo "Debug: $INSTALLPKG"
if ! checkbuilddep_versiondeps "$CURRENTREALPKGNAME" `get_dep_op_and_ver "$INSTALLPKG"`; then
echo " -> Does not satisfy version, not trying"
continue
fi
fi
echo " -> Trying $CURRENTREALPKGNAME"
if apt_sim $APTFLAG $INSTALLPKGLIST $CURRENTREALPKGNAME >& /dev/null; then
SATISFIED="yes"
INSTALLPKGLIST="$INSTALLPKGLIST $CURRENTREALPKGNAME"
else
echo " -> Cannot install $CURRENTREALPKGNAME; apt errors follow:"
if apt_sim $APTFLAG $INSTALLPKGLIST "$CURRENTREALPKGNAME"; then
:
fi
# package could not be found. -- looking for alternative.
PROVIDED=""
checkbuilddep_provides "$CURRENTREALPKGNAME"
if [ -n "$PROVIDED" ]; then
# something provides this package
echo " -> Considering $PROVIDED to satisfy the dependency "
if apt_sim $APTFLAG $INSTALLPKGLIST $PROVIDED >& /dev/null; then
SATISFIED="yes";
INSTALLPKGLIST="$INSTALLPKGLIST $PROVIDED"
else
# show the error for diagnostic purposes
echo " -> Cannot install $PROVIDED; apt errors follow:"
apt_sim $APTFLAG $INSTALLPKGLIST $PROVIDED || true
fi
fi
fi
if [ "$SATISFIED" = "yes" ]; then
break;
fi
done;
if [ "$SATISFIED" = "no" ]; then
echo "E: Could not satisfy build-dependency." >&2
if [ "$CONTINUE_FAIL" != "yes" ]; then
exit 2
fi
fi
done;
# now actually install the packages
echo " -> Installing $INSTALLPKGLIST"
if ! $CHROOTEXEC apt-get -y --force-yes install $APTFLAG $INSTALLPKGLIST; then
echo " -> Trying to fix apt error"
# Work around an apt bug which causes configure to fail.
if $CHROOTEXEC dpkg --configure --pending && $CHROOTEXEC apt-get -y --force-yes install $APTFLAG $INSTALLPKGLIST; then
echo " -> Apt bug workaround succeeded"
elif [ "$CONTINUE_FAIL" != "yes" ]; then
echo "E: Unrecoverable error installing build-dependencies." >&2
exit 1
fi
fi
# start processing build-conflicts.
for INSTALLPKG in $(get_build_conflicts | split_deps); do
CURRENTREALPKGNAME=$(get_pkg_name "$INSTALLPKG")
echo " -> Considering $CURRENTREALPKGNAME"
if echo "$INSTALLPKG" | grep -q '\['; then
# this package has arch-conflicts.
if checkbuilddep_archdeps "$INSTALLPKG" "$ARCH"; then
echo "I: Ignoring other-arch"
continue
fi
fi
if echo "$INSTALLPKG" | grep -q '('; then
# this package has version-conflicts
if ! checkbuilddep_versiondeps "$CURRENTREALPKGNAME" `get_dep_op_and_ver "$INSTALLPKG"`; then
echo "I: Satisfies version, not trying"
continue
fi
fi
# if package exists, remove it.
if $CHROOTEXEC /usr/bin/dpkg -s "$CURRENTREALPKGNAME" 2>&1 | grep -q ^Package:; then
if ! $CHROOTEXEC /usr/bin/apt-get -y remove $CURRENTREALPKGNAME ; then
echo "E: Could not satisfy build-conflicts" >&2
exit 1
fi
else
echo "I: $CURRENTREALPKGNAME package is not installed, no need to remove"
fi
done
echo " -> Finished parsing the build-deps"
}
print_help() {
# print out help message
cat <<EOF
pbuilder-satisfydepends -- satisfy dependencies
Copyright 2002-2007 Junichi Uekawa <dancer@debian.org>
--help: give help
--control: specify control file (debian/control, *.dsc)
--chroot: operate inside chroot
--binary-all: include binary-all
--binary-arch: include binary-arch only
--echo: echo mode, do nothing. (--force-version required for most operation)
--force-version: skip version check.
--continue-fail: continue even when failed.
EOF
}
. "$PBUILDER_PKGLIBDIR"/pbuilder-satisfydepends-checkparams
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