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#!@@SHELL@@
#
# DEB - Download, Edit, Build!
# src/deb.sh
# Main program script.
#
# Copyright (C) 2012 Patrick "P. J." McDermott
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
COMMANDS='init config update download edit builddsc'
CONFIG_NAMES='mirror distribution component remote buildcmd'
main()
{
SCRIPT_NAME="${0}"
if [ ${#} -lt 1 ]; then
print_usage >&2
exit 1
fi
COMMAND_NAME="${1}"
shift
if ! echo " ${COMMANDS} " | grep " ${COMMAND_NAME} " > /dev/null 2>&1; then
print_usage >&2
exit 1
fi
CWD="${PWD}"
cmd_run ${@}
}
print_usage()
{
cat <<EOF
Usage: ${SCRIPT_NAME} <command> <arguments>
Where <command> is one of:
init Initialize a DEB work area
config Get or set a configuration value
update Update the list of source packages
download Download a source package
edit Unpack a source package for editing
builddsc Build an edited source package and debdiff
build Build binary packages
push Synchronize changes with a remote tree
EOF
}
error()
{
msg="${1}"
shift
printf "Error: ${msg}\n" ${@}
exit 2
}
find_deb_dir()
{
until [ "${PWD}" = '/' ]; do
if [ -d '.deb' ]; then
DEB_DIR="${PWD}/.deb"
DEB_TREE="${PWD}"
return 0
fi
cd ..
done
[ ${#} -ge 1 ] && "${1}" && error 'No DEB work area found'
return 1
}
config_load()
{
. "${DEB_DIR}/config"
}
config_save()
{
for name in ${CONFIG_NAMES}; do
printf "CONFIG_%s='%s'\n" "${name}" "$(eval echo \$\{CONFIG_${name}\})"
done > "${DEB_DIR}/config"
}
cmd_run()
{
"cmd_${COMMAND_NAME}" ${@}
}
cmd_init()
{
find_deb_dir false || {
DEB_DIR="${CWD}/.deb"
DEB_TREE="${CWD}"
}
CONFIG_mirror='http://ftp.debian.org/debian'
CONFIG_distribution='sid'
CONFIG_component='main'
CONFIG_buildcmd='sbuild --build=%mirror% -d %distribution% %opts% %dsc%'
cd "${DEB_TREE}"
if [ -d .deb ]; then
rm -Rf .deb dsc build pkgs work
mkdir .deb dsc build pkgs work
config_save
printf 'Reinitialized DEB work area in %s.\n' "${DEB_TREE}"
else
mkdir .deb dsc build pkgs work
config_save
printf 'Initialized DEB work area in %s.\n' "${DEB_TREE}"
fi
}
cmd_config()
{
find_deb_dir
config_load
if [ ${#} -ne 1 -a ${#} -ne 2 ]; then
cat >&2 <<EOF
Usage: ${SCRIPT_NAME} ${COMMAND_NAME} <name> [<value>]
EOF
exit 1
fi
echo " ${CONFIG_NAMES} " | grep " ${1} " > /dev/null 2>&1 || \
error 'Invalid configuration name "%s"' "${1}"
config_name="CONFIG_${1}"
if [ ${#} -eq 1 ]; then
printf '%s\n' "$(eval echo \$\{${config_name}\})"
else
eval "${config_name}=${2}"
config_save
fi
}
cmd_update()
{
find_deb_dir
config_load
if [ ${#} -ne 0 ]; then
cat >&2 <<EOF
Usage: ${SCRIPT_NAME} ${COMMAND_NAME}
EOF
exit 1
fi
printf 'Downloading Sources file...\n'
rm -f "${DEB_DIR}/.Sources.bz2"
sources="${CONFIG_mirror}/dists/${CONFIG_distribution}/${CONFIG_component}/source"
sources="${sources}/Sources.bz2"
curl -o "${DEB_DIR}/.Sources.bz2" "${sources}" || error 'Cannot download Sources file'
printf '\nDecompressing Sources file...\n'
rm -f "${DEB_DIR}/.Sources"
bunzip2 "${DEB_DIR}/.Sources.bz2" || error 'Cannot decompress Sources file'
total=$(grep ^Package: "${DEB_DIR}/.Sources" | wc -l)
count=0
printf '\nReading Sources file...\n'
> "${DEB_DIR}/.dsc.list~"
while read line; do
if [ -z "${line}" ]; then
printf '%s %s\n' "${pkg}" "${dir}/${dsc}" >> "${DEB_DIR}/.dsc.list~"
count=$(($count + 1))
printf "\rFound %${#total}d/%d source packages.%s" \
"${count}" "${total}" \
"$([ ${count} -eq ${total} ] && printf ' ' || printf '..')"
continue
fi
if [ "${line#Package: }" != "${line}" ]; then
pkg="${line#Package: }"
continue
fi
if [ "${line#Directory: }" != "${line}" ]; then
dir="${line#Directory: }"
continue
fi
if [ "${line#Files:}" != "${line}" ]; then
while read sum size file; do
if [ "${file%.dsc}" != "${file}" ]; then
dsc="${file}"
break
fi
done
continue
fi
done < "${DEB_DIR}/.Sources"
printf '\n'
rm "${DEB_DIR}/.Sources"
mv "${DEB_DIR}/.dsc.list~" "${DEB_DIR}/dsc.list"
printf '\nDone.\n'
}
cmd_download()
{
find_deb_dir
config_load
if [ ${#} -ne 1 ]; then
cat >&2 <<EOF
Usage: ${SCRIPT_NAME} ${COMMAND_NAME} <pkg>
EOF
exit 1
fi
[ ! -f "${DEB_DIR}/dsc.list" ] && error 'No source package list found'
pkg="${1}"
line="$(grep "^${pkg} " "${DEB_DIR}/dsc.list")" || \
error 'Package "%s" not found' "${pkg}"
dsc="${line#${pkg} }"
rm -Rf "${DEB_TREE}/dsc/${pkg}"
mkdir -p "${DEB_TREE}/dsc/${pkg}"
cd "${DEB_TREE}/dsc/${pkg}"
printf 'Downloading source package "%s"...\n' "${pkg}"
dget -d "${CONFIG_mirror}/${dsc}" || error 'Cannot download source package'
printf '\nDone.\n'
}
cmd_edit()
{
find_deb_dir
config_load
if [ ${#} -ne 1 ]; then
cat >&2 <<EOF
Usage: ${SCRIPT_NAME} ${COMMAND_NAME} <pkg>
EOF
exit 1
fi
[ ! -f "${DEB_DIR}/dsc.list" ] && error 'No source package list found'
pkg="${1}"
line="$(grep "^${pkg} " "${DEB_DIR}/dsc.list")" || \
error 'Package "%s" not found' "${pkg}"
dsc="${line#${pkg} }"
dsc="${dsc##*/}"
[ ! -f "${DEB_TREE}/dsc/${pkg}/${dsc}" ] && \
error 'Source package "%s" not downloaded' "${pkg}"
ver="${dsc%.dsc}"
ver="${ver#${pkg}_}"
ver="${ver%-*}"
rm -Rf "${DEB_TREE}/work/${pkg}"
mkdir -p "${DEB_TREE}/work/${pkg}"
dpkg-source -x "${DEB_TREE}/dsc/${pkg}/${dsc}" \
"${DEB_TREE}/work/${pkg}/${pkg}-${ver}"
}
cmd_builddsc()
{
find_deb_dir
config_load
if [ ${#} -ne 1 ]; then
cat >&2 <<EOF
Usage: ${SCRIPT_NAME} ${COMMAND_NAME} <pkg>
EOF
exit 1
fi
[ ! -f "${DEB_DIR}/dsc.list" ] && error 'No source package list found'
pkg="${1}"
line="$(grep "^${pkg} " "${DEB_DIR}/dsc.list")" || \
error 'Package "%s" not found' "${pkg}"
dsc="${line#${pkg} }"
dsc="${dsc##*/}"
[ ! -d "${DEB_TREE}/work/${pkg}/${pkg}-*" ] && \
error 'Source package "%s" not unpacked for editing' "${pkg}"
oldverrev="${dsc%.dsc}"
oldverrev="${oldverrev#${pkg}_}"
verrev="$(dpkg-parsechangelog \
-l"${DEB_TREE}/work/${pkg}/${pkg}-*/debian/changelog" | \
sed -n 's/^Version: \(.*\)$/\1/p')"
pkgverrev="${pkg}_${verrev}"
ver="${verrev%-*}"
rev="${verrev#*-}"
dpkg --compare-versions "${verrev}" gt "${oldverrev}" || \
error 'Version not incremented'
cd "${DEB_TREE}/work/${pkg}/${pkg}-*"
dpkg-buildpackage -S -us -uc
cd ..
rm -Rf "${DEB_TREE}/pkgs/${pkg}"
mkdir -p "${DEB_TREE}/pkgs/${pkg}"
# XXX: This assumes source format 3.0.
mv "${pkgverrev}.dsc" "${pkgverrev}_source.changes" "${DEB_TREE}/pkgs/${pkg}"
if [ -n "${rev}" ]; then
cp -p "${pkg}_${ver}.orig.tar.gz" "${DEB_TREE}/pkgs/${pkg}"
mv "${pkgverrev}.diff.gz" "${DEB_TREE}/pkgs/${pkg}"
else
mv "${pkgverrev}.tar.gz" "${DEB_TREE}/pkgs/${pkg}"
fi
debdiff \
"${DEB_TREE}/dsc/${pkg}/${dsc}" "${DEB_TREE}/pkgs/${pkg}/${base}.dsc" \
> "${DEB_TREE}/pkgs/${pkg}/${pkg}.debdiff"
}
main ${@}
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