#!/bin/bash
# Solves issue165

. "$(dirname $0)/db-functions"
. "$(dirname $0)/config"

# Find all pkgnames on old with pkgvers
    on_repo=($(find ${CLEANUP_DESTDIR} -name "*.pkg.tar.?z" -printf "%f\n" | \
        sed "s/^\(.\+-[^-]\+\)-[^-]\+-[^-]\+$/\1/"))

# Traverse all repos
for _repo in ${PKGREPOS[@]}; do
    msg "Restoring [${_repo}]"

# Find all pkgnames on this repo's abs
    on_abs=($(
        find ${SVNREPO}/${_repo} -name PKGBUILD | \
        while read pkgbuild; do
            source ${pkgbuild} >/dev/null 2>&1
# cleanup to save memory
            unset build package source md5sums pkgdesc pkgrel epoch \
                  url license arch depends makedepends optdepends options \
                  >/dev/null 2>&1

# also cleanup package functions
            for _pkg in ${pkgname[@]}; do
                unset package_${pkg} >/dev/null 2>&1
            done
            
# this fills the on_abs array
            echo ${pkgname[@]}-${pkgver}
        done
    ))

# quit if abs is empty
    if [ ${#on_abs[*]} -eq 0 ]; then
        warning "[${_repo}]'s ABS tree is empty, skipping"
        break
    fi

# Compares them, whatever is on abs should be restored
    restore=($(comm -12 <(echo ${on_abs[@]} | tr ' ' "\n" | sort -u) \
             <(echo ${on_repo[@]} | tr ' ' "\n" | sort -u)))

    msg2 "Restoring the following packages:"
    plain "$(echo ${restore[@]} | tr ' ' "\n")"

    for _pkg in ${restore[@]}; do
        find ${CLEANUP_DESTDIR} -name "${_pkg}*" -exec mv -v '{}' ${STAGING}/${_repo}
    done

done

exit $?