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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2024 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 Foundation
package import LanguageServerProtocol
import SKLogging
package import SKOptions
import SwiftExtensions
import TSCExtensions
import ToolchainRegistry
import struct TSCBasic.AbsolutePath
import struct TSCBasic.RelativePath
private func searchForCompilationDatabaseConfig(
in workspaceFolder: URL,
options: SourceKitLSPOptions
) -> BuildSystemSpec? {
let searchPaths =
(options.compilationDatabaseOrDefault.searchPaths ?? []).compactMap {
try? RelativePath(validating: $0)
} + [
// These default search paths match the behavior of `clangd`
try! RelativePath(validating: "."),
try! RelativePath(validating: "build"),
]
return
searchPaths
.lazy
.compactMap { searchPath in
let path = workspaceFolder.appending(searchPath)
let jsonPath = path.appendingPathComponent(JSONCompilationDatabaseBuildSystem.dbName)
if FileManager.default.isFile(at: jsonPath) {
return BuildSystemSpec(kind: .jsonCompilationDatabase, projectRoot: workspaceFolder, configPath: jsonPath)
}
let fixedPath = path.appendingPathComponent(FixedCompilationDatabaseBuildSystem.dbName)
if FileManager.default.isFile(at: fixedPath) {
return BuildSystemSpec(kind: .fixedCompilationDatabase, projectRoot: workspaceFolder, configPath: fixedPath)
}
return nil
}
.first
}
/// Determine which build system should be started to handle the given workspace folder and at which folder that build
/// system's project root is (see `BuiltInBuildSystem.projectRoot(for:options:)`). `onlyConsiderRoot` controls whether
/// paths outside the root should be considered (eg. configuration files in the user's home directory).
///
/// Returns `nil` if no build system can handle this workspace folder.
package func determineBuildSystem(
forWorkspaceFolder workspaceFolder: DocumentURI,
onlyConsiderRoot: Bool,
options: SourceKitLSPOptions,
hooks: BuildSystemHooks
) -> BuildSystemSpec? {
if let injectBuildServer = hooks.injectBuildServer {
return BuildSystemSpec(
kind: .injected(injectBuildServer),
projectRoot: workspaceFolder.arbitrarySchemeURL,
configPath: workspaceFolder.arbitrarySchemeURL
)
}
var buildSystemPreference: [WorkspaceType] = [
.buildServer, .swiftPM, .compilationDatabase,
]
if let defaultBuildSystem = options.defaultWorkspaceType {
buildSystemPreference.removeAll(where: { $0 == defaultBuildSystem })
buildSystemPreference.insert(defaultBuildSystem, at: 0)
}
guard let workspaceFolderUrl = workspaceFolder.fileURL else {
return nil
}
for buildSystemType in buildSystemPreference {
var spec: BuildSystemSpec? = nil
switch buildSystemType {
case .buildServer:
spec = ExternalBuildSystemAdapter.searchForConfig(
in: workspaceFolderUrl,
onlyConsiderRoot: onlyConsiderRoot,
options: options
)
case .compilationDatabase:
spec = searchForCompilationDatabaseConfig(in: workspaceFolderUrl, options: options)
case .swiftPM:
#if !NO_SWIFTPM_DEPENDENCY
spec = SwiftPMBuildSystem.searchForConfig(in: workspaceFolderUrl, options: options)
#endif
}
if let spec {
return spec
}
}
return nil
}
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