// Copyright 2024 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package pluginrpc

import (
	"io"
	"os"
)

// OSEnv is an Env using os.Args, os.Stdin, os.Stdout, and os.Stderr.
var OSEnv = Env{
	Args:   os.Args[1:],
	Stdin:  os.Stdin,
	Stdout: os.Stdout,
	Stderr: os.Stderr,
}

// Env specifies an environment used to invoke a plugin.
//
// This abstracts away args, stdin, stdout, and stderr. Envs are used
// by Runners and Servers.
type Env struct {
	Args   []string
	Stdin  io.Reader
	Stdout io.Writer
	Stderr io.Writer
}