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#!/bin/bash
# pbuilder -- personal Debian package builder
# Copyright (C) 2001,2002,2003,2005-2007 Junichi Uekawa
# Copyright (C) 2007 Loïc Minier
#
# 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; common functions
package_versions() {
local PACKAGE="$1"
( $CHROOTEXEC /usr/bin/apt-cache show "$PACKAGE" ) | sed -n 's/^Version: \(.*\)$/\1/p'
}
candidate_version() {
local PACKAGE="$1"
LC_ALL=C $CHROOTEXEC apt-cache policy "$PACKAGE" | sed -n 's/ *Candidate: *\(.*\)/\1/p'
}
checkbuilddep_versiondeps() {
local PACKAGE="$1"
local COMPARESTRING="$2"
local DEPSVERSION="$3"
local PACKAGEVERSIONS=$( package_versions "$PACKAGE" | xargs)
# no versioned provides.
if [ "${FORCEVERSION}" = "yes" ]; then
return 0;
fi
for PACKAGEVERSION in $PACKAGEVERSIONS ; do
if dpkg --compare-versions "$PACKAGEVERSION" "$COMPARESTRING" "$DEPSVERSION"; then
# satisfies depends
return 0;
fi
done
echo " Tried versions: $PACKAGEVERSIONS"
# cannot satisfy depends
return 1;
}
get_control_re() {
# output the field which matches RE of control file in stdout.
control="$1"
re="$2"
cat "$control" |
awk '
BEGIN { source=1 }
/^$/ {
if (p) {
print s
s=""
}
source=0
}
/^Source:/ { source=1 }
/^[^ ]*:/ {
if (source && p) {
print s
s=""
}
p=0
}
/^#/ { next }
tolower($0) ~ /^'"$re"':/ { p=1 }
{ if (p && source) { s=s""$0 } }' |
sed 's/^[^: ]*://'
}
checkbuilddep_archdeps() {
# returns FALSE on INSTALL
local INSTALLPKG="$1"
local ARCH="$2"
# architectures listed between [ and ] for this dep
local DEP_ARCHES="$(echo "$INSTALLPKG" | sed 's/.*\[\(.*\)\].*/\1/')"
# check for !$ARCH in DEP_ARCHES
if echo "$DEP_ARCHES" | egrep -q "(^|[[:space:]/]+)\![[:space:]/]*$ARCH($|[[:space:]/]+)"; then
return 0;
fi
# check for a "!" which would mean there's a !<otherarch> and hence $ARCH
# is included
if ! echo "$DEP_ARCHES" | grep -q '!'; then
# check for $ARCH in DEP_ARCHES
if ! echo "$DEP_ARCHES" | egrep -q "(^|[[:space:]/]+)$ARCH($|[[:space:]/]+)"; then
return 0;
fi
fi
return 1;
}
checkbuilddep_provides() {
local PACKAGENAME="$1"
# PROVIDED needs to be used outside of this function.
PROVIDED=$($CHROOTEXEC /usr/bin/apt-cache showpkg $PACKAGENAME | awk '{p=0}/^Reverse Provides:/,/^$/{p=1}{if(p && ($0 !~ "Reverse Provides:")){PACKAGE=$1}} END{print PACKAGE}')
}
# returns either "package=version", to append to an apt-get install line, or
# package
versioneddep_to_aptcmd() {
local INSTALLPKG="$1"
local PACKAGE
local PACKAGE_WITHVERSION
local PACKAGEVERSIONS
local CANDIDATE_VERSION
local COMPARESTRING
local DEPSVERSION
PACKAGE="$(echo "$INSTALLPKG" | sed -e 's/^[/]*//' -e 's/[[/(].*//')"
PACKAGE_WITHVERSION="$PACKAGE"
# if not versionned, we skip directly to outputting $PACKAGE
if echo "$INSTALLPKG" | grep '[(]' > /dev/null; then
# package versions returned by APT, in reversed order
PACKAGEVERSIONS="$( package_versions "$PACKAGE" | tac | xargs )"
CANDIDATE_VERSION="$( candidate_version "$PACKAGE" )"
COMPARESTRING="$(echo "$INSTALLPKG" | tr "/" " " | sed 's/^.*( *\(<<\|<=\|>=\|=\|<\|>>\|>\) *\(.*\)).*$/\1/')"
DEPSVERSION="$(echo "$INSTALLPKG" | tr "/" " " | sed 's/^.*( *\(<<\|<=\|>=\|=\|<\|>>\|>\) *\(.*\)).*$/\2/')"
# if strictly versionned, we skip to outputting that version
if [ "=" = "$COMPARESTRING" ]; then
PACKAGE_WITHVERSION="$PACKAGE=$DEPSVERSION"
else
# try the candidate version, then all available versions (asc)
for VERSION in $CANDIDATE_VERSION $PACKAGEVERSIONS; do
if dpkg --compare-versions "$VERSION" "$COMPARESTRING" "$DEPSVERSION"; then
if [ $VERSION != $CANDIDATE_VERSION ]; then
PACKAGE_WITHVERSION="$PACKAGE=$VERSION"
fi
break;
fi
done
fi
fi
echo "$PACKAGE_WITHVERSION"
}
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
}
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