S55_playground

mknginxconf() {
    tempdir="$1"
    port="$2"
    cat << EOF > "$tempdir/.nginx.conf"
pid "$tempdir/.nginx.pid";
events { worker_connections  1024; }
http {
    default_type  application/octet-stream;
    server {
        access_log "$tempdir/nginx.log";
        listen "$port" default;
        location / {
            root   "$tempdir";
        }
    }
    types { text/html html htm shtml; text/css css; text/xml xml; application/x-javascript js; image/jpeg jpeg jpg;
            image/png png; application/x-shockwave-flash swf; video/mp4 mp4; }
}
EOF
}

entertempdir() {
    tempdir=$(mktemp -d /tmp/playground.XXXXXX)
    if [ $? -ne 0 ]; then echo "$0: can't create temporary directory"; return 1; fi
    cd "$tempdir"
}
leavetempdir() {
    cd -
    echo "Hit [enter] to destroy your playground ($tempdir)"
    read
    rm -fr "$tempdir"
}

safeopen() {
    if ! isexe open; then
        echo "please open $1 and hit [enter]"
        read
    else
        if [ -n "$2" ]; then
            open -g "$1" -a "$2"
        else
            open -g "$1"
        fi
    fi
}

freeport() {
    while true; do
        port=$(($RANDOM+1024))
        if nc -z localhost $port > /dev/null; then continue; fi
        echo $port
        break
    done
}

_playground() {
    entertempdir || return 1
    cp ~/.zsh.d/static/"$1"/* .
    port="$(freeport)"
    mknginxconf "$tempdir" "$port"
    alias nginx='nginx -c "$tempdir"/.nginx.conf'
    nginx -c "$tempdir"/.nginx.conf
    safeopen http://localhost:$port
    vim "$tempdir"/$2
    nginx -c "$tempdir"/.nginx.conf -s stop
    leavetempdir
}

playground() {
    _playground playground index.html
}

mdplayground() {
    _playground mdplayground playground.markdown
}