From d71e6273b6acd766eea6c37b8f53ae03cb2bd9f6 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sat, 16 Dec 2023 01:49:06 -0700
Subject: [PATCH] std.fs.Dir.atomicFile: provide an option for make path

It's useful for the API to support creating the parent directory.
---
 lib/std/fs/Dir.zig | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/lib/std/fs/Dir.zig b/lib/std/fs/Dir.zig
index b637e664f1..4a45975ccc 100644
--- a/lib/std/fs/Dir.zig
+++ b/lib/std/fs/Dir.zig
@@ -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);