ScriptRunner.swift

// Copyright 2019 Google LLC
//
// 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
//
// https://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.

public protocol ScriptRunner: Component {
    var processArguments: [String] { get }
    var env: [(String, String)] { get }

    /// Executes a script, waits for it to complete, and returns the result.
    func run(_ script: String, withTimeout timeout: UInt32) -> Execution

    /// Sets an environment variable for the child process. Must only be called before initialization.
    func setEnvironmentVariable(_ key: String, to value: String)
}