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//===------- SimpleExecutor.swift - Swift Driver Source Version-----------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import protocol TSCBasic.FileSystem
import struct TSCBasic.ProcessResult
import class TSCBasic.Process
/// A simple executor sufficient for managing processes required during
/// build planning: e.g. querying frontend target info.
///
/// TODO: It would be nice if build planning did not involve an executor.
/// We must hunt down all uses of an executor during planning and move
/// relevant compiler functionality into libSwiftScan.
internal class SimpleExecutor: DriverExecutor {
let resolver: ArgsResolver
let fileSystem: FileSystem
let env: [String: String]
init(resolver: ArgsResolver, fileSystem: FileSystem, env: [String: String]) {
self.resolver = resolver
self.fileSystem = fileSystem
self.env = env
}
func execute(job: Job,
forceResponseFiles: Bool,
recordedInputModificationDates: [TypedVirtualPath : TimePoint]) throws -> ProcessResult {
let arguments: [String] = try resolver.resolveArgumentList(for: job,
useResponseFiles: .heuristic)
var childEnv = env
childEnv.merge(job.extraEnvironment, uniquingKeysWith: { (_, new) in new })
let process = try Process.launchProcess(arguments: arguments, env: childEnv)
return try process.waitUntilExit()
}
func execute(workload: DriverExecutorWorkload, delegate: JobExecutionDelegate,
numParallelJobs: Int, forceResponseFiles: Bool,
recordedInputModificationDates: [TypedVirtualPath : TimePoint]) throws {
fatalError("Unsupported operation on current executor")
}
func checkNonZeroExit(args: String..., environment: [String : String]) throws -> String {
try Process.checkNonZeroExit(arguments: args, environment: environment)
}
func description(of job: Job, forceResponseFiles: Bool) throws -> String {
let useResponseFiles : ResponseFileHandling = forceResponseFiles ? .forced : .heuristic
let (args, usedResponseFile) = try resolver.resolveArgumentList(for: job, useResponseFiles: useResponseFiles)
var result = args.map { $0.spm_shellEscaped() }.joined(separator: " ")
if usedResponseFile {
result += " # \(job.commandLine.joinedUnresolvedArguments)"
}
return result
}
}
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