Little helper script for using Nim with "runner" extension in Visual Studio Code

vsc-runner

#!/bin/bash

if [ -z "$1" ]; then
    echo "No file given! You may need to save first!"
    exit 5
fi
cd `dirname "$1"`
CMD="c --verbosity:0 --hints:off --parallelBuild:1 "
FULL="`basename "$1"`"

NOPLINE="`grep '^# nop' $FULL | head -n 1`"
if [ -z "$NOPLINE" ]; then
    NIMLINE="`grep '^# nim' $FULL | head -n 1`"
    if [ "${NIMLINE:0:5}" = "# nim" ]; then
        CMD="${NIMLINE:5}"
    fi
    BIN="${FULL%.*}"
    #nim c --verbosity:0 --hints:off -r `basename "$1"`
    trap 'kill -TERM $PID' TERM INT
    rm "./$BIN" &>/dev/null
    rm "./nimcache/$BIN.php" &>/dev/null
    rm "./nimcache/$BIN.js" &>/dev/null
    nim $CMD $FULL
    if [ $? -ne 0 ]; then
        echo "ERROR: Could not compile!"
        exit 5
    fi
else
    NIMLINE=" check"
fi

CMD=""
RUNLINES="`grep '^# run ' $FULL`"
while read -r LINE; do
    LINE=${LINE:6}
    if [ ! -z "$LINE" ]; then
        echo ">" $LINE
        if [ "${LINE:0:5}" = "phpr " ]; then
            CMD="${LINE:5}"
            php -r "$CMD"  2>&1
        elif [ "${LINE:0:4}" = "php " ]; then
            CMD="${LINE:4}"
            php $CMD 2>&1
        elif [ "${LINE:0:5}" = "node " ]; then
            CMD="${LINE:5}"
            node $CMD  2>&1
        elif [ "${LINE:0:5}" = "nimt " ]; then
            CMD="${LINE:5}"
            time nim $CMD  2>&1
        elif [ "${LINE:0:4}" = "nim " ]; then
            CMD="${LINE:4}"
            nim $CMD 2>&1
        elif [ "${LINE:0:5}" = "php7 " ]; then
            CMD="${LINE:5}"
            /usr/local/opt/php70/bin/php $CMD  2>&1
        elif [ "${LINE:0:6}" = "php7r " ]; then
            CMD="${LINE:6}"
            /usr/local/opt/php70/bin/php -r "$CMD"  2>&1
        fi
    fi
done <<< "$RUNLINES"

ECHOLINES="`grep '^# echo ' $FULL`"
while read -r LINE; do
    LINE=${LINE:7}
    if [ ! -z "$LINE" ]; then
        echo ">" $LINE
    fi
done <<< "$ECHOLINES"

if [[ $NIMLINE == *" build"* ]]; then
    CMD="build"
fi

if [[ $NIMLINE == *" check"* ]]; then
    CMD="check"
fi

if [ -z "$CMD" ]; then
    # support for PHP Backend!
    if [ -e "./nimcache/$BIN.php" ]; then
        php "./nimcache/$BIN.php" &
    elif [ -e "./nimcache/$BIN.js" ]; then
        node "./nimcache/$BIN.js" &
    else
        "./$BIN"  2>&1 &
    fi
    PID=$!
    wait $PID
    trap - TERM INT
    wait $PID
    EXIT_STATUS=$?
    rm "./$BIN" &>/dev/null
fi

#time nim c --verbosity:0 --hints:off -d:release --parallelBuild:1 -r `basename "$1"`