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#!/bin/bash
# Queries the ABS
# License: GPL3
## TODO
# * Add license text
# * Create symlinks from pkgbase to pkgname[@] for easy package finding
## GOALS
# * Have a searchable database of PKGBUILD metadata
# * Have an interface for source-only builds
# * Possibility to hook up ABS dirs besides ABSROOT (low priority)
# * Tell updates and non available binary packages (working on this)
source /etc/abs.conf
source /etc/libretools.conf
if [ ! -w "$TORUPATH" ]; then
error "Toru's path isn't writable. Please check $TORUPATH"
exit 1
fi
# TODO move to common functions
function in_array { # usage : in_array( $needle, $haystack )
[[ $2 ]] || return 1 # Not found
local needle=$1; shift
local item
for item in "$@"; do
[[ ${item#@} = $needle ]] && return 0 # Found
done
return 1 # Not Found
}
# Stores the lastsync date
lastsync() {
local lastsyncfile
lastsyncfile=$1
[ -e ${lastsyncfile} -a ! -w ${lastsyncfile} ] && {
error "The sync date can't be saved. ${lastsyncfile} isn't writable."
return 1
}
date +%s > ${lastsyncfile}
touch ${lastsyncfile}
}
# Saves contents on a named cache
# $1 cache name (repo)
# $2+ contents
store_cache() {
cache=$1; shift
[ -z "$cache" ] && return 1
cat $@ > ${TORUPATH}/${cache}.cache
return $?
}
# Return cache contents
# $1 cache name
read_cache() {
cat ${TORUPATH}/${1}.cache 2>/dev/null
return $?
}
##
# usage : get_full_version( $epoch, $pkgver, $pkgrel )
# return : full version spec, including epoch (if necessary), pkgver, pkgrel
##
get_full_version() {
if [[ $1 -eq 0 ]]; then
# zero epoch case, don't include it in version
echo $2-$3
else
echo $1:$2-$3
fi
}
# Outputs an ordered package-fullpkgver array
print_package_array() {
echo "$@" | tr " " "\n" | sort -u
}
# Gets repo.db contents (unordered)
# $1 repo
get_db_contents() {
[ ! -r /var/lib/pacman/sync/$1.db ] && return 0
bsdtar -tf /var/lib/pacman/sync/$1.db | cut -d'/' -f1 | sort -u
}
# Get the pkgname
# pkgname from pkgver separator can be either '-' or ' '
extract_pkgname() {
echo "$@" | tr " " "\n" | sed "s/^\(.\+\)[- ][^-]\+-[^-]\+$/\1/"
}
# Get all the pkgnames from a file
# pkgname from pkgver separator can be either '-' or ' '
extract_pkgname_from_file() {
sed "s/^\(.\+\)[- ][^-]\+-[^-]\+$/\1/" $1
}
# Split pkgnames from pkgvers
split_pkgname_from_pkgver() {
sed "s/^\(.\+\)-\([^-]\+-[^-]\+\)$/\1 \2/" $1
}
# Get the fullpkgver
# pkgname from pkgver separator can be either '-' or ' '
extract_fullpkgver() {
echo "$@" | tr " " "\n" | sed "s/^.\+[ -]\([^-]\+-[^-]\+\)$/\1/"
}
# Checks if $1 is a valid repo
is_repo() {
if ! in_array ${1} ${REPOS[@]}; then
$quiet || warning "${1} is not a valid repo (check REPOS array at libretools.conf)"
return 1
fi
}
# Updates the database by finding all PKGBUILDS
# Workflow:
# * Find all PKGBUILDs on the ABS repo specified
# * Get all packages already on package repos
# * Compare them
# Args:
update() {
local update_sync_file=false
# The PKGBUILDs found
local -a pkgbuilds=()
# The list of pkgname-fullpkgver
local -a packages_in_abs=()
local -a pkg_updates=()
local -a package_paths=()
# Traverse all specified repos
for _repo in $@; do
# Check if the repo is set as such, otherwise skip
is_repo ${_repo} || continue
# This is the syncfile, stores the last date as content and mtime
local lastsyncfile=${TORUPATH}/${_repo}.lastsync
# Find all the PKGBUILDs newer than the last update
# Update newer, otherwise everything
if [[ $force = true || ! -e ${lastsyncfile} ]]; then
$quiet || warning "Forcing upgrade"
pkgbuilds=($(find ${_repo} -maxdepth 2 -type f -name 'PKGBUILD'))
else
pkgbuilds=($(find ${_repo} -maxdepth 2 -type f -name 'PKGBUILD' -newer ${lastsyncfile}))
packages_in_abs=($(read_cache ${_repo}))
package_paths=($(read_cache paths))
$quiet || msg2 "Getting ${#packages_in_abs[@]} packages from cache"
fi
# Inform how many PKGBUILDS were found and quit immediately if none
$quiet || msg "Found $((${#pkgbuilds[*]}-1)) PKGBUILDs to update"
# Traverse all found PKGBUILDs
for _pkgbuild in ${pkgbuilds[@]}; do
# Update the sync file because there are pkgbuilds to update
update_sync_file=true
# Guess pkgbase from PKGBUILD's basedir
_pkgpath=$(dirname "${_pkgbuild}")
_pkgbase=$(basename "${_pkgpath}")
# Load PKGBUILD's metadata
source ${_pkgbuild}
# We won't need this (all unsets are for memory efficiency)
unset build package url md5sums install pkgdesc backup options
# TODO fill a license list
unset license
# TODO create source tarballs?
unset mksource
# TODO solve dependency tree?
unset depends makedepends
for _pkg in ${pkgname[@]}; do
# Keep removing unneeded stuff
unset package_${_pkg} >/dev/null 2>&1
# Fill the list of packages to find
packages_in_abs+=($_pkg-$(get_full_version ${epoch:-0} $pkgver $pkgrel))
package_paths+=($_pkg:$_pkgpath)
done # end pkgnames
unset pkgbase pkgname pkgver pkgrel source epoch
done # end pkgbuilds
# Sync! (Only if there was an actual sync)
${update_sync_file} && lastsync ${lastsyncfile}
if [ "${lastsyncfile}" -nt "${TORUPATH}/paths.cache" ]; then
print_package_array "${package_paths[@]}" > $TMPDIR/paths
store_cache paths $TMPDIR/paths
fi
# If there isn't an update cache or it's older than the last update, we check
if [ "${lastsyncfile}" -nt "${TORUPATH}/${_repo}.updates.cache" ]; then
# Get repo database contents
packages_in_sync=($(get_db_contents ${_repo}))
# Drops arrays into files
print_package_array "${packages_in_abs[@]}" > ${TMPDIR}/packages_in_abs
print_package_array "${packages_in_sync[@]}" > ${TMPDIR}/packages_in_sync
# Work with files
unset packages_in_abs package_in_sync
# Use a different separator for pkgnames and pkgvers
# so we can join them by pkgname (first field)
split_pkgname_from_pkgver ${TMPDIR}/packages_in_abs | sort -k1b,1 > ${TMPDIR}/in_abs
split_pkgname_from_pkgver ${TMPDIR}/packages_in_sync | sort -k1b,1 > ${TMPDIR}/in_sync
$quiet || msg "This packages are available to update"
# Join both files by pkgname, the end result is:
# pkgname syncver absver
join ${TMPDIR}/in_sync ${TMPDIR}/in_abs | \
while read need_line; do
_pkg=$(echo "${need_line}" | cut -d' ' -f1)
_syncver=$(echo "${need_line}" | cut -d' ' -f2)
_absver=$(echo "${need_line}" | cut -d' ' -f3)
# If the versions differ we need an update
# TODO move this to update query
if [ "${_syncver}" != "${_absver}" ]; then
$quiet || msg2 "$_pkg update from $_syncver to $_absver"
$quiet && echo "$_pkg"
# FIXME this works all right but it's unset once the while ends
#pkg_updates+=("$_pkg")
# Fix for the above problem, but it access the file every time instead of
# puting all packages together once
echo $_pkg >> ${TMPDIR}/updates
fi
done # end need_line
unset _pkg _syncver _absver need_line
# Save the cache
store_cache ${_repo} ${TMPDIR}/packages_in_abs
# See above FIXME
# print_package_array "${updates[@]}" > ${TMPDIR}/updates
store_cache ${_repo}.updates ${TMPDIR}/updates
else
msg "Reading updates from cache..."
read_cache ${_repo}.updates
fi
done # end repos
}
# Find all the packages that are missing from the repo dbs (aka not built)
missing() {
true
}
## MAIN
commands=()
repos=()
quiet=false
force=false
while getopts 'hqfum' arg; do
case $arg in
h) usage; exit 0 ;;
q) quiet=true ;;
f) force=true ;;
u) commands+=(update);;
m) commands+=(missing);;
esac
shift $((OPTIND-1))
done
TMPDIR=$(mktemp -d)
[[ -z ${TMPDIR} ]] && exit 1
# TODO this is all for debugging
msg2 "force: $force quiet: $quiet repos: $@ commands: ${commands[@]}"
msg2 "read lastsync: $([ -e $lastsyncfile ])"
${commands[0]} ${@}
#rm -rf ${TMPDIR}
exit $?
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