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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import Foundation
import SWBProtocol
extension ProjectModel {
public struct BuildRule: Sendable, Hashable, Identifiable {
public enum Input: Sendable, Hashable {
case fileType(_ identifier: String)
case filePattern(_ pattern: String)
}
public enum Action: Sendable, Hashable {
case compiler(_ identifier: String)
case shellScriptWithFileList(_ contents: String, inputPaths: [String], inputFileListPaths: [String], outputPaths: [String], outputFileListPaths: [String], outputFilesCompilerFlags: [String]?, dependencyInfo: DependencyInfoFormat?, runOncePerArchitecture: Bool)
public enum DependencyInfoFormat: Sendable, Hashable {
case dependencyInfo(String)
case makefile(String)
case makefiles([String])
}
}
public let id: GUID
public var name: String
public var input: Input
public var action: Action
public init(id: GUID, name: String, input: Input, action: Action) {
self.id = id
self.name = name
self.input = input
self.action = action
}
}
}
extension ProjectModel.BuildRule: Codable {
public init(from decoder: any Decoder) throws {
let container = try decoder.singleValueContainer()
let dict = try container.decode([String: Value].self)
guard let id = dict[PIFKey_guid]?.string,
let name = dict[PIFKey_name]?.string,
let typeId = dict[PIFKey_BuildRule_fileTypeIdentifier]?.string
else {
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Unable to find expected values")
}
self.id = ProjectModel.GUID(id)
self.name = name
if typeId == PIFKey_BuildRule_fileTypeIdentifier_pattern_proxy,
let pattern = dict[PIFKey_BuildRule_filePatterns]?.string {
self.input = .filePattern(pattern)
} else {
self.input = .fileType(typeId)
}
switch dict[PIFKey_BuildRule_compilerSpecificationIdentifier]?.string {
case PIFKey_BuildRule_compilerSpecificationIdentifier_com_apple_compilers_proxy_script:
guard let contents = dict[PIFKey_BuildRule_scriptContents]?.string,
let inputPaths = dict[PIFKey_BuildRule_inputFilePaths]?.array,
let outputPaths = dict[PIFKey_BuildRule_outputFilePaths]?.array
else {
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Failed to decode proxy script information.")
}
let inputFileListPaths = dict[PIFKey_BuildRule_inputFileListPaths]?.array ?? []
let outputFileListPaths = dict[PIFKey_BuildRule_outputFileListPaths]?.array ?? []
let outputFilesCompilerFlags = dict[PIFKey_BuildRule_outputFilesCompilerFlags]?.array
let runOncePerArchitecture = dict[PIFKey_BuildRule_runOncePerArchitecture]?.string == "true"
let dependencyInfo: Action.DependencyInfoFormat?
if let format = dict[PIFKey_BuildRule_dependencyFileFormat]?.string,
let paths = dict[PIFKey_BuildRule_dependencyFilePaths]?.array {
if format == "dependencyInfo" {
dependencyInfo = .dependencyInfo(paths[0])
} else if format == "makefile" {
dependencyInfo = .makefile(paths[0])
} else if format == "makefiles" {
dependencyInfo = .makefiles(paths)
} else {
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Failed to decode dependency info.")
}
} else {
dependencyInfo = nil
}
self.action = .shellScriptWithFileList(contents, inputPaths: inputPaths, inputFileListPaths: inputFileListPaths, outputPaths: outputPaths, outputFileListPaths: outputFileListPaths, outputFilesCompilerFlags: outputFilesCompilerFlags, dependencyInfo: dependencyInfo, runOncePerArchitecture: runOncePerArchitecture)
case let .some(specId):
self.action = .compiler(specId)
case .none:
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Failed to decode action information.")
}
}
public func encode(to encoder: any Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(serialize())
}
private enum Value: Codable {
case str(String)
case arr([String])
fileprivate var string: String? {
switch self {
case .str(let str): return str
case .arr: return nil
}
}
fileprivate var array: [String]? {
switch self {
case .str(_): return nil
case .arr(let arr): return arr
}
}
func encode(to encoder: any Encoder) throws {
switch self {
case .str(let str): try str.encode(to: encoder)
case .arr(let arr): try arr.encode(to: encoder)
}
}
init(from decoder: any Decoder) throws {
let container = try decoder.singleValueContainer()
if let str = try? container.decode(String.self) {
self = .str(str)
} else if let arr = try? container.decode([String].self) {
self = .arr(arr)
} else {
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Expected string or array in container.")
}
}
}
// TODO: fold this into 'encode'
private func serialize() -> [String: Value] {
var dict: [String: Value] = [:]
dict[PIFKey_guid] = .str(id.value)
dict[PIFKey_name] = .str(name)
switch self.input {
case .fileType(let typeId):
dict[PIFKey_BuildRule_fileTypeIdentifier] = .str(typeId)
case .filePattern(let pattern):
dict[PIFKey_BuildRule_fileTypeIdentifier] = .str(PIFKey_BuildRule_fileTypeIdentifier_pattern_proxy)
dict[PIFKey_BuildRule_filePatterns] = .str(pattern)
}
func populateDictFromShellScript(_ contents: String, inputPaths: [String], inputFileListPaths: [String]?, outputPaths: [String], outputFileListPaths: [String]?, outputFilesCompilerFlags: [String]?, dependencyInfo: Action.DependencyInfoFormat?, runOncePerArchitecture: Bool) {
dict[PIFKey_BuildRule_compilerSpecificationIdentifier] = .str(PIFKey_BuildRule_compilerSpecificationIdentifier_com_apple_compilers_proxy_script)
dict[PIFKey_BuildRule_scriptContents] = .str(contents)
dict[PIFKey_BuildRule_inputFilePaths] = .arr(inputPaths)
if let inputFileListPaths {
dict[PIFKey_BuildRule_inputFileListPaths] = .arr(inputFileListPaths)
}
dict[PIFKey_BuildRule_outputFilePaths] = .arr(outputPaths)
if let outputFileListPaths {
dict[PIFKey_BuildRule_outputFileListPaths] = .arr(outputFileListPaths)
}
if let outputFilesCompilerFlags = outputFilesCompilerFlags {
dict[PIFKey_BuildRule_outputFilesCompilerFlags] = .arr(outputFilesCompilerFlags)
}
if let dependencyInfo = dependencyInfo {
let pifInfo: (format: String, paths: [String])
switch dependencyInfo {
case .dependencyInfo(let path):
pifInfo = (format: "dependencyInfo", paths: [path])
case .makefile(let path):
pifInfo = (format: "makefile", paths: [path])
case .makefiles(let paths):
pifInfo = (format: "makefiles", paths: paths)
}
dict[PIFKey_BuildRule_dependencyFileFormat] = .str(pifInfo.format)
dict[PIFKey_BuildRule_dependencyFilePaths] = .arr(pifInfo.paths)
}
dict[PIFKey_BuildRule_runOncePerArchitecture] = runOncePerArchitecture ? .str("true") : .str("false")
}
switch self.action {
case .compiler(let specId):
dict[PIFKey_BuildRule_compilerSpecificationIdentifier] = .str(specId)
case .shellScriptWithFileList(let contents, let inputPaths, let inputFileListPaths, let outputPaths, let outputFileListPaths, let outputFilesCompilerFlags, let dependencyInfo, let runOncePerArchitecture):
populateDictFromShellScript(contents, inputPaths: inputPaths, inputFileListPaths: inputFileListPaths, outputPaths: outputPaths, outputFileListPaths: outputFileListPaths, outputFilesCompilerFlags: outputFilesCompilerFlags, dependencyInfo: dependencyInfo, runOncePerArchitecture: runOncePerArchitecture)
}
return dict
}
}
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