Files
container/Sources/ContainerPlugin/FilePath+Resolve.swift
T
J Logan ca3a4d6670 Use FilePath for app, install, and log roots. (#1558)
- Closes #1557.
- Replaces `executableURL` utility function for getting app executable
path with `executablePath`.
- Adds `FilePath.resolvingSymlinks()` extension.
- Also converts for FilePath for types in `ContainerVersion` target.
2026-05-26 13:58:55 -07:00

49 lines
2.3 KiB
Swift

//===----------------------------------------------------------------------===//
// Copyright © 2026 Apple Inc. and the container project authors.
//
// 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.
//===----------------------------------------------------------------------===//
import SystemPackage
extension FilePath {
/// Resolves a pathname string relative to this path.
///
/// The result is lexically normalized — `.` components are removed and `..` components
/// collapse the preceding component. Absolute pathnames are returned normalized as-is;
/// relative pathnames are appended to `self` before normalizing.
///
/// - Parameter pathname: The pathname to resolve.
/// - Returns: The resolved ``FilePath``, or `nil` if `pathname` is `nil` or empty.
package func resolve(_ pathname: String?) -> FilePath? {
guard let pathname, !pathname.isEmpty else { return nil }
let path = FilePath(pathname)
guard !path.isAbsolute else { return path.lexicallyNormalized() }
return self.appending(path.components).lexicallyNormalized()
}
/// Resolves a pathname string relative to this path, falling back to a default.
///
/// The result is lexically normalized — `.` components are removed and `..` components
/// collapse the preceding component. Absolute pathnames are returned normalized as-is;
/// relative pathnames are appended to `self` before normalizing.
///
/// - Parameters:
/// - pathname: The pathname to resolve.
/// - defaultPath: The path returned when `pathname` is `nil` or empty.
/// - Returns: The resolved ``FilePath``, or `defaultPath` lexically normalized if `pathname` is `nil` or empty.
package func resolve(_ pathname: String?, defaultPath: FilePath) -> FilePath {
resolve(pathname) ?? defaultPath.lexicallyNormalized()
}
}