sync_tests

#!/bin/bash

declare -A mappings
mappings=(
    [parsetest]='syntax'
    [sematest]='semantic'
)
declare -A suffixes
suffixes=(
    # order matters for import matching
    [invalid]='.invalid'
    [valid]=''
)
our_testpath='test'
mjt_testpath='tests'

shopt -s globstar

edo() {
    echo "${@}"
    "${@}" || exit 100
}

_copy_if_different() {
    local copied=1
    if ! diff -q -N "${1}" "${2}" &> /dev/null; then
        [[ -d ${2%/*} ]] || edo mkdir -p "${2%/*}"
        edo cp -f "${1}" "${2}"
        copied=0
    fi
    
    return ${copied}
}

_export_tests() {
    local mjt=${1}
    local mypath=${2}
    local exported=0
    for phase in "${!mappings[@]}"; do
        for result in "${!suffixes[@]}"; do
            for f in "${mypath}/${our_testpath}/${phase}/${result}/"*.java; do
                base=${f##*/}
                _copy_if_different "${f}" "${mjt}/${mjt_testpath}/${mappings[${phase}]}/${base%.java}${suffixes[${result}]}.mj" \
                    && exported=1
            done
        done
    done

    for f in "${mypath}/${our_testpath}/exec/"*.java; do
        base=${f##*/}
        target="${mjt}/${mjt_testpath}/exec/${base}"
        [[ -e ${target} ]] || target=${target%.java}.mj
        _copy_if_different "${f}" "${target}" \
            && exported=1
    done

    for f in "${mypath}/${our_testpath}/testlib/lib/"**/*.java; do
        base=${f#"${mypath}/${our_testpath}/testlib/"}
        p="${mjt}/${mjt_testpath}/exec/${base%/*}"
        [[ ${base%/*} != */* || -d ${p} ]] || edo mkdir -p "${p}"
        _copy_if_different "${f}" "${mjt}/${mjt_testpath}/exec/${base}" \
            && exported=1
    done

    [[ ${exported} -gt 0 ]] && echo -e "\e[1;31m!!!\e[0m Exported tests, please add, commit and submit in mjtests"
}

_import_tests() {
    local mjt=${1}
    local mypath=${2}
    local imported=0
    for phase in "${!mappings[@]}"; do
        for f in "${mjt}/${mjt_testpath}/${mappings[${phase}]}/"*.mj; do
            for result in "${!suffixes[@]}"; do
                base=${f##*/}
                if [[ ${base} =~ .*"${suffixes[${result}]}.mj" ]]; then
                    _copy_if_different "${f}" "${mypath}/${our_testpath}/${phase}/${result}/${base%${suffixes[${result}]}.mj}.java" \
                        && imported=1
                    break;
                fi
            done
        done
    done

    for f in "${mjt}/${mjt_testpath}/exec/"*.{mj,java}; do
        base=${f##*/}
        _copy_if_different "${f}" "${mypath}/${our_testpath}/exec/${base%.*}.java" \
            && imported=1
    done

    for f in "${mjt}/${mjt_testpath}/exec/lib/"**/*.java; do
        base=${f#"${mjt}/${mjt_testpath}/exec/"}
        p="${mypath}/${our_testpath}/testlib/${base%/*}"
        [[ ${base%/*} != */* || -d ${p} ]] || edo mkdir -p "${p}"
        _copy_if_different "${f}" "${mypath}/${our_testpath}/testlib/${base}" \
            && imported=1
    done

    [[ ${imported} -gt 0 ]] && echo -e "\e[1;31m!!!\e[0m Imported tests, please add and commit"
}

_main() {
    [[ ${#} -eq 1 && -d ${1} && -x ${1}/mjt.py ]] || { echo "Need to pass path to mjtest as the single argument"; exit 1; }

    local dir=${1}
    local mypath=${0%/*}

    [[ -d ${mypath}/${our_testpath} ]] || { echo "Couldn't find our test dir. How did you run this script?"; exit 2; }

    _import_tests "${dir}" "${mypath}"
    _export_tests "${dir}" "${mypath}"

    exit 0
}

_main "${@}"