#!/bin/sh

error () {
        echo >&2 "error: $@"
        exit 1
}

find_embedded_trash () {
        while read -r line
        do
                case "$line" in
                *Start\ of\ trash\ directory\ of\ \'t[0-9][0-9][0-9][0-9]-*\':*)
                        test_name="${line#*\'}"
                        test_name="${test_name%\'*}"

                        return 0
                esac
        done

        return 1
}

extract_embedded_trash () {
        while read -r line
        do
                case "$line" in
                *End\ of\ trash\ directory\ of\ \'$test_name\'*)
                        return
                        ;;
                *)
                        printf '%s\n' "$line"
                        ;;
                esac
        done

        error "unexpected end of input"
}

# Raw logs from Linux build jobs have CRLF line endings, while OSX
# build jobs mostly have CRCRLF, except an odd line every now and
# then that has CRCRCRLF.  'base64 -d' from 'coreutils' doesn't like
# CRs and complains about "invalid input", so remove all CRs at the
# end of lines.
sed -e 's/\r*$//' | \
while find_embedded_trash
do
        echo "Extracting trash directory of '$test_name'"

        extract_embedded_trash |base64 -d |tar xzp
done