50 lines
1.6 KiB
Swift
50 lines
1.6 KiB
Swift
// Copyright 2020 Carton contributors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import ArgumentParser
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import CartonHelpers
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import SwiftToolchain
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import TSCBasic
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struct Local: ParsableCommand {
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static let configuration = CommandConfiguration(abstract: """
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Prints SDK version used for the current project or saves it \
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in the `.swift-version` file if a version is passed as an argument.
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""")
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@Argument() var version: String?
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func run() throws {
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let terminal = InteractiveWriter.stdout
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let toolchainSystem = ToolchainSystem(fileSystem: localFileSystem)
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guard let localVersion = try toolchainSystem.fetchLocalSwiftVersion() else {
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terminal.logLookup("Version file is not present: ", toolchainSystem.swiftVersionPath)
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return
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}
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guard let version = version else {
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terminal.write("\(localVersion)", inColor: .green)
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return
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}
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let versions = try toolchainSystem.fetchAllSwiftVersions()
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if versions.contains(version) {
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_ = try toolchainSystem.setLocalSwiftVersion(version)
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} else {
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terminal.write("The version \(version) hasn't been installed!", inColor: .red)
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}
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}
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}
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