rsplay

#!/bin/bash

if ! [ -x "$(command -v jq)" ]; then
    echo 'jq is not installed.' >&2
    exit 1
fi

URL='https://play.rust-lang.org'
GIST='https://gist.githubusercontent.com/rust-play'

channel="stable"
edition="2018"
mode="debug"
run=0
share=0

usage() {
    cat <<EOF
Usage: rsplay [-h] [-c {stable,beta,nightly}] [-e {2015,2018,2021}]
              [-m {debug,release}] [-g ID] [-r ID] [-s]

Options:
    -c {stable,beta,nightly}    rust version (default to stable)
    -e {2015,2018,2021}         rust edition (default to 2018)
    -m {debug,release}          compiler optimization level (default to debug)
    -g ID                       get source code by ID
    -r ID                       run code by ID
    -s                          create a shareable link
    -h                          show this message and exit

EOF
}

while getopts "c:e:m:g:r:sh" opt; do
    case $opt in
        c)
            if [[ $OPTARG =~ ^(stable|beta|nightly)$ ]]; then
                channel=$OPTARG
            else
                echo "Invalid channel" >&2
                exit 1
            fi
            ;;
        e)
            if [[ $OPTARG =~ ^(2015|2018|2021)$ ]]; then
                if [[ $OPTARG == 2021 ]]; then
                    channel="nightly"
                fi
                edition=$OPTARG
            else
                echo "Invalid edition" >&2
                exit 1
            fi
            ;;
        m)
            if [[ $OPTARG =~ ^(debug|release)$ ]]; then
                mode=$OPTARG
            else
                echo "Invalid mode" >&2
                exit 1
            fi
            ;;
        r)
            run=$OPTARG
            ;;
        g)
            curl "$GIST/$OPTARG/raw" --silent
            exit
            ;;

        s)
            share=1
            ;;
        h)
            usage
            exit
            ;;
        \?)
            echo "Invalid option" >&2
            exit 1
            ;;
    esac
done

data() {
    cat <<EOF 
{
  "backtrace": false,
  "channel": "$channel",
  "code": $code,
  "crateType": "bin",
  "edition": "$edition",
  "mode": "$mode",
  "tests": false
}
EOF
}

if [[ $run == 0 ]]; then
    code="$(jq -Rsc)"
else
    src="$(curl "$GIST/$run/raw" --silent)"
    code="$(jq -Rsc <<< $src)"
fi

if [[ $share == 1 ]]; then
    response="$(curl -H "Content-Type: application/json" -X POST "$URL/meta/gist" --data-raw "{\"code\":$code}" --compressed --silent)"
    id="$(jq -j .id <<< "$response")"
    cat <<EOF
ID: $id
Playground: https://play.rust-lang.org/?version=$channel&mode=$mode&edition=$edition&gist=$id
Gist: https://gist.github.com/rust-play/$id
EOF
    exit
fi

response="$(curl -H "Content-Type: application/json" -X POST "$URL/execute" --data-raw "$(data)" --compressed --silent)"

status="$(jq .success <<< "$response")"
if [[ $status == true ]]; then
    jq -j .stdout <<< "$response"
else
    jq -j .stderr <<< "$response" >&2
    exit 1
fi