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std.fs.Dir.atomicFile: provide an option for make path

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It's useful for the API to support creating the parent directory.
This commit is contained in:
Andrew Kelley 2023-12-16 01:49:06 -07:00
parent 9715936472
commit d71e6273b6
1 changed files with 11 additions and 5 deletions
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16
lib/std/fs/Dir.zig
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@ -2416,15 +2416,21 @@ fn copy_file(fd_in: posix.fd_t, fd_out: posix.fd_t, maybe_size: ?u64) CopyFileRa
pub const AtomicFileOptions = struct {
mode: File.Mode = File.default_mode,
make_path: bool = false,
};
/// Directly access the `.file` field, and then call `AtomicFile.finish`
/// to atomically replace `dest_path` with contents.
/// Always call `AtomicFile.deinit` to clean up, regardless of whether `AtomicFile.finish` succeeded.
/// `dest_path` must remain valid until `AtomicFile.deinit` is called.
/// Directly access the `.file` field, and then call `AtomicFile.finish` to
/// atomically replace `dest_path` with contents.
/// Always call `AtomicFile.deinit` to clean up, regardless of whether
/// `AtomicFile.finish` succeeded. `dest_path` must remain valid until
/// `AtomicFile.deinit` is called.
pub fn atomicFile(self: Dir, dest_path: []const u8, options: AtomicFileOptions) !AtomicFile {
if (fs.path.dirname(dest_path)) |dirname| {
const dir = try self.openDir(dirname, .{});
const dir = if (options.make_path)
try self.makeOpenPath(dirname, .{})
else
try self.openDir(dirname, .{});
return AtomicFile.init(fs.path.basename(dest_path), options.mode, dir, true);
} else {
return AtomicFile.init(dest_path, options.mode, self, false);