0e061f9cc8
`delete()` and other functions would check `exists` to do certain behaviors, but `exists` will validate a symlink if the entry is a symlink, thus instead we check if the path is an actual entry now instead.
69 lines
2.3 KiB
Swift
69 lines
2.3 KiB
Swift
import Foundation
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#if os(Linux)
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import func Glibc.access
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#else
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import Darwin
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#endif
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public extension Path {
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//MARK: Filesystem Properties
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/**
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- Returns: `true` if the path represents an actual filesystem entry.
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- Note: If `self` is a symlink the return value represents the destination.
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*/
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var exists: Bool {
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return FileManager.default.fileExists(atPath: string)
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}
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/// Returns true if the path represents an actual filesystem entry that is *not* a directory.
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var isFile: Bool {
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var isDir: ObjCBool = true
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return FileManager.default.fileExists(atPath: string, isDirectory: &isDir) && !isDir.boolValue
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}
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/// Returns true if the path represents an actual directory.
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var isDirectory: Bool {
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var isDir: ObjCBool = false
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return FileManager.default.fileExists(atPath: string, isDirectory: &isDir) && isDir.boolValue
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}
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/// Returns true if the path represents an actual file that is also readable by the current user.
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var isReadable: Bool {
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return FileManager.default.isReadableFile(atPath: string)
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}
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/// Returns true if the path represents an actual file that is also writable by the current user.
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var isWritable: Bool {
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return FileManager.default.isWritableFile(atPath: string)
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}
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/// Returns true if the path represents an actual file that is also deletable by the current user.
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var isDeletable: Bool {
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#if os(Linux) && !swift(>=5.1)
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return exists && access(parent.string, W_OK) == 0
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#else
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// FileManager.isDeletableFile returns true if there is *not* a file there
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return exists && FileManager.default.isDeletableFile(atPath: string)
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#endif
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}
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/// Returns true if the path represents an actual file that is also executable by the current user.
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var isExecutable: Bool {
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if access(string, X_OK) == 0 {
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// FileManager.isExxecutableFile returns true even if there is *not*
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// a file there *but* if there was it could be *made* executable
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return FileManager.default.isExecutableFile(atPath: string)
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} else {
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return false
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}
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}
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/// Returns `true` if the file is a symbolic-link (symlink).
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var isSymlink: Bool {
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var sbuf = stat()
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lstat(string, &sbuf)
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return (sbuf.st_mode & S_IFMT) == S_IFLNK
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}
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}
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