#!/bin/bash

. <(ffoom init)

ffoo import core
ffoo import ini
ffoo import yummy

usage() {
    usage_is "[-d] [-f] NVRLIST" \
             "[-d] -n NVR -t DEST"
}

while true; do case $1 in
    -b|--brewroot)  brewroot=$2;        shift 2;        ;;
    -f|--file)      nvrlist=$2;         shift 2; break; ;;
    -n|--nvr)       nvr=$2;             shift 2;        ;;
    -t|--to)        dest=$2;            shift 2;        ;;
    -d|--debug)     FFOO_DEBUG=true;   shift;          ;;
    *)              nvrlist=$1;         shift;   break  ;;
esac done

test -n "$brewroot" || brewroot=$(saturnin-ini -p get.brewroot)
test -n "$brewroot" || die "specify '-b /path/to/brewroot or get.brewroot in get.ini"
test -d "$brewroot" || die "cannot access brewroot: $brewroot"

get_nvr() {
    local nvr=$1
    local dest=$2

    local arch="$(nvc_parse arch $nvr)"
    local release="$(nvc_parse release $nvr)"
    local version="$(nvc_parse version $nvr)"
    local name="$(nvc_parse name $nvr)"

    debug -v nvr arch release version name dest

    rm -rf $dest
    mkdir -p $dest
    local pkgroot="$brewroot/packages/$name/$version/$release"
    rsync -u "$pkgroot/$arch/"* "$dest"
    test -f "$pkgroot/noarch/"* && rsync -u "$pkgroot/noarch/"* "$dest"
    $FFOO_VERBOSE && find $dest -type f

}

if test -n "$nvrlist";     # NVR list provided; make up DESTs and call self
then
    dirname="rpms.$(basename $nvrlist)"
    rm -f rpms
    archs=$(iniread -k arch - < $nvrlist | paste -sd,)
    if test -z "$archs";
    then
        warn "archs not specified, using $(which arch)"
        archs=$(arch)
    fi
    for arch in $(tr "," " " <<<"$archs");
    do
        get_nvr $(iniread -k old - < $nvrlist).$arch "$dirname/old/$arch"
        get_nvr $(iniread -k new - < $nvrlist).$arch "$dirname/new/$arch"
    done
    ln -s $dirname rpms

elif test -n "$nvr" -a -n "$dest";      # NVR and DEST provided -- do your job
then
    get_nvr "$nvr" "$dest"
else
    usage
fi

# tigervnc-1.2.80/0.23.20130314svn5065.el7$
#   |||||
#   vvvvv
# /brewroot/packages/tigervnc/1.2.80/0.23.20130314svn5065.el7$