elct9620/mruby-go

package mruby

import (
    "io"
    "os"
    "os/exec"
)

func Compile(script io.Reader) ([]byte, error) {
    temp, err := os.CreateTemp("", "rb")
    if err != nil {
        return nil, err
    }
    defer os.Remove(temp.Name())
    _, err = io.Copy(temp, script)
    if err != nil {
        return nil, err
    }

    cmd := exec.Command(
        "mrbc",
        "-o",
        "-",
        temp.Name(),
    )
    bin, err := cmd.Output()
    if err != nil {
        return nil, err
    }

    return bin, nil
}