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pacman/scripts/repo-add.sh.in
2011-01-22 10:03:51 -06:00

538 lines
14 KiB
Bash

#!@BASH_SHELL@
#
# repo-add - add a package to a given repo database file
# repo-remove - remove a package entry from a given repo database file
# @configure_input@
#
# Copyright (c) 2006-2008 Aaron Griffin <aaron@archlinux.org>
# Copyright (c) 2007-2008 Dan McGee <dan@archlinux.org>
#
# 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, see <http://www.gnu.org/licenses/>.
# gettext initialization
export TEXTDOMAIN='pacman'
export TEXTDOMAINDIR='@localedir@'
myver='@PACKAGE_VERSION@'
confdir='@sysconfdir@'
QUIET=0
DELTA=0
WITHFILES=0
REPO_DB_FILE=
LOCKFILE=
CLEAN_LOCK=0
# ensure we have a sane umask set
umask 0022
msg() {
(( QUIET )) && return
local mesg=$1; shift
printf "==> ${mesg}\n" "$@" >&1
}
msg2() {
(( QUIET )) && return
local mesg=$1; shift
printf " -> ${mesg}\n" "$@" >&1
}
warning() {
local mesg=$1; shift
printf "==> $(gettext "WARNING:") ${mesg}\n" "$@" >&2
}
error() {
local mesg=$1; shift
printf "==> $(gettext "ERROR:") ${mesg}\n" "$@" >&2
}
# print usage instructions
usage() {
printf "repo-add, repo-remove (pacman) %s\n\n" "$myver"
printf "$(gettext "Usage: repo-add [-d] [-f] [-q] <path-to-db> <package|delta> ...\n")"
printf "$(gettext "Usage: repo-remove [-q] <path-to-db> <packagename|delta> ...\n\n")"
printf "$(gettext "\
repo-add will update a package database by reading a package file.\n\
Multiple packages to add can be specified on the command line.\n\n")"
printf "$(gettext "\
repo-remove will update a package database by removing the package name\n\
specified on the command line from the given repo database. Multiple\n\
packages to remove can be specified on the command line.\n\n")"
printf "$(gettext "\
Use the -q/--quiet flag to minimize output to basic messages, warnings,\n\
and errors.\n\n")"
printf "$(gettext "\
Use the -d/--delta flag to automatically generate and add a delta file\n\
between the old entry and the new one, if the old package file is found\n\
next to the new one.\n\n")"
printf "$(gettext "\
Use the -f/--files flag to update a database including file entries.\n\n")"
echo "$(gettext "Example: repo-add /path/to/repo.db.tar.gz pacman-3.0.0.pkg.tar.gz")"
echo "$(gettext "Example: repo-remove /path/to/repo.db.tar.gz kernel26")"
}
version() {
printf "repo-add, repo-remove (pacman) %s\n\n" "$myver"
printf "$(gettext "\
Copyright (C) 2006-2008 Aaron Griffin <aaron@archlinux.org>.\n\
Copyright (c) 2007-2008 Dan McGee <dan@archlinux.org>.\n\n\
This is free software; see the source for copying conditions.\n\
There is NO WARRANTY, to the extent permitted by law.\n")"
}
# write a list entry
# arg1 - Entry name
# arg2 - List
# arg3 - File to write to
write_list_entry() {
if [[ -n $2 ]]; then
echo "%$1%" >>$3
echo -e $2 >>$3
fi
}
find_pkgentry()
{
local pkgname=$1
local pkgentry
for pkgentry in $tmpdir/$pkgname*; do
name=${pkgentry##*/}
if [[ ${name%-*-*} = $pkgname ]]; then
echo $pkgentry
return 0
fi
done
return 1
}
# Get the package name from the delta filename
get_delta_pkgname() {
local tmp
tmp=${1##*/}
echo ${tmp%-*-*_to*}
}
# write a delta entry
# arg1 - path to delta file
db_write_delta()
{
deltafile="$1"
pkgname="$(get_delta_pkgname $deltafile)"
pkgentry=$(find_pkgentry $pkgname)
if [[ -z $pkgentry ]]; then
error "$(gettext "No database entry for package '%s'.")" "$pkgname"
return 1
fi
deltas="$pkgentry/deltas"
if [[ ! -f $deltas ]]; then
echo -e "%DELTAS%" >$deltas
fi
# get md5sum and compressed size of package
md5sum="$(openssl dgst -md5 "$deltafile")"
md5sum="${md5sum##* }"
csize=$(@SIZECMD@ "$deltafile")
oldfile=$(xdelta3 printhdr $deltafile | grep "XDELTA filename (source)" | sed 's/.*: *//')
newfile=$(xdelta3 printhdr $deltafile | grep "XDELTA filename (output)" | sed 's/.*: *//')
if grep -q "$oldfile.*$newfile" $deltas; then
sed -i.backup "/$oldfile.*$newfile/d" $deltas && rm -f $deltas.backup
fi
msg2 "$(gettext "Adding 'deltas' entry : %s -> %s")" "$oldfile" "$newfile"
echo ${deltafile##*/} $md5sum $csize $oldfile $newfile >> $deltas
return 0
} # end db_write_delta
# remove a delta entry
# arg1 - path to delta file
db_remove_delta()
{
deltafile="$1"
filename=${deltafile##*/}
pkgname="$(get_delta_pkgname $deltafile)"
pkgentry=$(find_pkgentry $pkgname)
if [[ -z $pkgentry ]]; then
return 1
fi
deltas="$pkgentry/deltas"
if [[ ! -f $deltas ]]; then
return 1
fi
if grep -q "$filename" $deltas; then
sed -i.backup "/$filename/d" $deltas && rm -f $deltas.backup
msg2 "$(gettext "Removing existing entry '%s'...")" "$filename"
return 0
fi
return 1
} # end db_remove_delta
# write an entry to the pacman database
# arg1 - path to package
db_write_entry()
{
# blank out all variables
local pkgfile="$1"
local pkgname pkgver pkgdesc csize size md5sum url arch builddate packager \
_groups _licenses _replaces _depends _conflicts _provides _optdepends
local OLDIFS="$IFS"
# IFS (field separator) is only the newline character
IFS="
"
# read info from the zipped package
local line var val
for line in $(bsdtar -xOqf "$pkgfile" .PKGINFO |
grep -v '^#' | sed 's|\(\w*\)\s*=\s*\(.*\)|\1 \2|'); do
# bash awesomeness here- var is always one word, val is everything else
var=${line%% *}
val=${line#* }
declare $var="$val"
case "$var" in
group) _groups="$_groups$group\n" ;;
license) _licenses="$_licenses$license\n" ;;
replaces) _replaces="$_replaces$replaces\n" ;;
depend) _depends="$_depends$depend\n" ;;
conflict) _conflicts="$_conflicts$conflict\n" ;;
provides) _provides="$_provides$provides\n" ;;
optdepend) _optdepends="$_optdepends$optdepend\n" ;;
esac
done
IFS=$OLDIFS
# get md5sum and compressed size of package
md5sum="$(openssl dgst -md5 "$pkgfile")"
md5sum="${md5sum##* }"
csize=$(@SIZECMD@ "$pkgfile")
# ensure $pkgname and $pkgver variables were found
if [[ -z $pkgname || -z $pkgver ]]; then
error "$(gettext "Invalid package file '%s'.")" "$pkgfile"
return 1
fi
pushd "$tmpdir" >/dev/null
if [[ -d $pkgname-$pkgver ]]; then
warning "$(gettext "An entry for '%s' already existed")" "$pkgname-$pkgver"
else
if (( DELTA )); then
pkgentry=$(find_pkgentry $pkgname)
if [[ -n $pkgentry ]]; then
local oldfilename=$(grep -A1 FILENAME $pkgentry/desc | tail -n1)
local oldfile="$(dirname $1)/$oldfilename"
fi
fi
fi
# remove an existing entry if it exists, ignore failures
db_remove_entry "$pkgname"
# create package directory
mkdir "$pkgname-$pkgver"
pushd "$pkgname-$pkgver" >/dev/null
# restore an eventual deltas file
[[ -f ../$pkgname.deltas ]] && mv "../$pkgname.deltas" deltas
# create desc entry
msg2 "$(gettext "Creating 'desc' db entry...")"
echo -e "%FILENAME%\n$(basename "$1")\n" >>desc
echo -e "%NAME%\n$pkgname\n" >>desc
[[ -n $pkgbase ]] && echo -e "%BASE%\n$pkgbase\n" >>desc
echo -e "%VERSION%\n$pkgver\n" >>desc
[[ -n $pkgdesc ]] && echo -e "%DESC%\n$pkgdesc\n" >>desc
write_list_entry "GROUPS" "$_groups" "desc"
[[ -n $csize ]] && echo -e "%CSIZE%\n$csize\n" >>desc
[[ -n $size ]] && echo -e "%ISIZE%\n$size\n" >>desc
# compute checksums
msg2 "$(gettext "Computing md5 checksums...")"
echo -e "%MD5SUM%\n$md5sum\n" >>desc
[[ -n $url ]] && echo -e "%URL%\n$url\n" >>desc
write_list_entry "LICENSE" "$_licenses" "desc"
[[ -n $arch ]] && echo -e "%ARCH%\n$arch\n" >>desc
[[ -n $builddate ]] && echo -e "%BUILDDATE%\n$builddate\n" >>desc
[[ -n $packager ]] && echo -e "%PACKAGER%\n$packager\n" >>desc
write_list_entry "REPLACES" "$_replaces" "desc"
# create depends entry
msg2 "$(gettext "Creating 'depends' db entry...")"
# create the file even if it will remain empty
touch "depends"
write_list_entry "DEPENDS" "$_depends" "depends"
write_list_entry "CONFLICTS" "$_conflicts" "depends"
write_list_entry "PROVIDES" "$_provides" "depends"
write_list_entry "OPTDEPENDS" "$_optdepends" "depends"
popd >/dev/null
popd >/dev/null
# create files file if wanted
if (( WITHFILES )); then
msg2 "$(gettext "Creating 'files' db entry...")"
local files_path="$tmpdir/$pkgname-$pkgver/files"
echo "%FILES%" >$files_path
bsdtar --exclude='.*' -tf "$pkgfile" >>$files_path
fi
# create a delta file
if (( DELTA )); then
if [[ -n $oldfilename ]]; then
if [[ -f $oldfile ]]; then
delta=$(pkgdelta -q $oldfile $1)
if [[ -f $delta ]]; then
db_write_delta $delta
fi
else
warning "$(gettext "Old package file not found: %s")" "$oldfilename"
fi
fi
fi
return 0
} # end db_write_entry
# remove existing entries from the DB
# arg1 - package name
db_remove_entry() {
local pkgname=$1
local notfound=1
local pkgentry=$(find_pkgentry $pkgname)
while [[ -n $pkgentry ]]; do
notfound=0
if [[ -f $pkgentry/deltas ]]; then
mv "$pkgentry/deltas" "$tmpdir/$pkgname.deltas"
fi
msg2 "$(gettext "Removing existing entry '%s'...")" \
"$(basename $pkgentry)"
rm -rf $pkgentry
pkgentry=$(find_pkgentry $pkgname)
done
return $notfound
} # end db_remove_entry
check_repo_db()
{
# check lock file
if ( set -o noclobber; echo "$$" > "$LOCKFILE") 2> /dev/null; then
CLEAN_LOCK=1
else
error "$(gettext "Failed to acquire lockfile: %s.")" "$LOCKFILE"
[[ -f $LOCKFILE ]] && error "$(gettext "Held by process %s")" "$(cat $LOCKFILE)"
exit 1
fi
if [[ -f $REPO_DB_FILE ]]; then
# there are two situations we can have here- a DB with some entries,
# or a DB with no contents at all.
if ! bsdtar -tqf "$REPO_DB_FILE" '*/desc' >/dev/null 2>&1; then
# check empty case
if [[ -n $(bsdtar -tqf "$REPO_DB_FILE" '*' 2>/dev/null) ]]; then
error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE"
exit 1
fi
fi
msg "$(gettext "Extracting database to a temporary location...")"
bsdtar -xf "$REPO_DB_FILE" -C "$tmpdir"
else
case "$cmd" in
repo-remove)
error "$(gettext "Repository file '%s' was not found.")" "$REPO_DB_FILE"
exit 1
;;
repo-add)
# check if the file can be created (write permission, directory existence, etc)
if ! touch "$REPO_DB_FILE"; then
error "$(gettext "Repository file '%s' could not be created.")" "$REPO_DB_FILE"
exit 1
fi
rm -f "$REPO_DB_FILE"
;;
esac
fi
}
add()
{
if [[ ! -f $1 ]]; then
error "$(gettext "File '%s' not found.")" "$1"
return 1
fi
if [[ ${1##*.} == "delta" ]]; then
deltafile=$1
msg "$(gettext "Adding delta '%s'")" "$deltafile"
if ! type xdelta3 &>/dev/null; then
error "$(gettext "Cannot find the xdelta3 binary! Is xdelta3 installed?")"
exit 1
fi
if db_write_delta "$deltafile"; then
return 0
else
return 1
fi
fi
pkgfile=$1
if ! bsdtar -tqf "$pkgfile" .PKGINFO >/dev/null 2>&1; then
error "$(gettext "'%s' is not a package file, skipping")" "$pkgfile"
return 1
fi
msg "$(gettext "Adding package '%s'")" "$pkgfile"
db_write_entry "$pkgfile"
}
remove()
{
if [[ ${1##*.} == "delta" ]]; then
deltafile=$1
msg "$(gettext "Searching for delta '%s'...")" "$deltafile"
if db_remove_delta "$deltafile"; then
return 0
else
error "$(gettext "Delta matching '%s' not found.")" "$deltafile"
return 1
fi
fi
pkgname=$1
msg "$(gettext "Searching for package '%s'...")" "$pkgname"
if db_remove_entry "$pkgname"; then
rm -f "$tmpdir/$pkgname.deltas"
return 0
else
error "$(gettext "Package matching '%s' not found.")" "$pkgname"
return 1
fi
}
trap_exit()
{
echo
error "$@"
exit 1
}
clean_up() {
local exit_code=$?
[[ -d $tmpdir ]] && rm -rf "$tmpdir"
(( CLEAN_LOCK )) && [[ -f $LOCKFILE ]] && rm -f "$LOCKFILE"
exit $exit_code
}
# PROGRAM START
# determine whether we have gettext; make it a no-op if we do not
if ! type gettext &>/dev/null; then
gettext() {
echo "$@"
}
fi
case "$1" in
-h|--help) usage; exit 0;;
-V|--version) version; exit 0;;
esac
# figure out what program we are
cmd="$(basename $0)"
if [[ $cmd != "repo-add" && $cmd != "repo-remove" ]]; then
error "$(gettext "Invalid command name '%s' specified.")" "$cmd"
exit 1
fi
tmpdir=$(mktemp -d /tmp/repo-tools.XXXXXXXXXX) || (\
error "$(gettext "Cannot create temp directory for database building.")"; \
exit 1)
trap 'clean_up' EXIT
trap 'trap_exit "$(gettext "TERM signal caught. Exiting...")"' TERM HUP QUIT
trap 'trap_exit "$(gettext "Aborted by user! Exiting...")"' INT
trap 'trap_exit "$(gettext "An unknown error has occured. Exiting...")"' ERR
success=0
# parse arguments
for arg in "$@"; do
case "$arg" in
-q|--quiet) QUIET=1;;
-d|--delta) DELTA=1;;
-f|--files) WITHFILES=1;;
*)
if [[ -z $REPO_DB_FILE ]]; then
REPO_DB_FILE="$arg"
LOCKFILE="$REPO_DB_FILE.lck"
check_repo_db
else
case "$cmd" in
repo-add) add $arg && success=1 ;;
repo-remove) remove $arg && success=1 ;;
esac
fi
;;
esac
done
# if at least one operation was a success, re-zip database
if (( success )); then
msg "$(gettext "Creating updated database file '%s'")" "$REPO_DB_FILE"
case "$REPO_DB_FILE" in
*tar.gz) TAR_OPT="z" ;;
*tar.bz2) TAR_OPT="j" ;;
*tar.xz) TAR_OPT="J" ;;
*) warning "$(gettext "'%s' does not have a valid archive extension.")" \
"$REPO_DB_FILE" ;;
esac
filename=$(basename "$REPO_DB_FILE")
pushd "$tmpdir" >/dev/null
if [[ -n $(ls) ]]; then
bsdtar -c${TAR_OPT}f "$filename" *
else
# we have no packages remaining? zip up some emptyness
warning "$(gettext "No packages remain, creating empty database.")"
bsdtar -c${TAR_OPT}f "$filename" -T /dev/null
fi
popd >/dev/null
[[ -f $REPO_DB_FILE ]] && mv -f "$REPO_DB_FILE" "${REPO_DB_FILE}.old"
[[ -f $tmpdir/$filename ]] && mv "$tmpdir/$filename" "$REPO_DB_FILE"
dblink="${REPO_DB_FILE%.tar.*}"
target=${REPO_DB_FILE##*/}
ln -sf "$target" "$dblink" 2>/dev/null || \
ln -f "$target" "$dblink" 2>/dev/null || \
cp "$REPO_DB_FILE" "$dblink"
else
msg "$(gettext "No packages modified, nothing to do.")"
exit 1
fi
exit 0
# vim: set ts=2 sw=2 noet: