ID

b7fe765

date

2024-09-07 19:58:47+00:00

author

Alex Chan <alex@alexwlchan.net>

parent

2c9ba9c

message

Use exclusive open `x` when writing a file

This is almost certainly overkill because the UUID suffix should ensure
nobody else is trying to write to the same path, but it's a useful
defensive measure.

changed files

1 file, 4 additions, 1 deletion

• src/javascript/__init__.py

Changed files

src/javascript/__init__.py (5886) → src/javascript/__init__.py (5933)

diff --git a/src/javascript/__init__.py b/src/javascript/__init__.py
index 6f44d4f..54e993b 100644
--- a/src/javascript/__init__.py
+++ b/src/javascript/__init__.py
@@ -88,7 +88,10 @@ def write_js(p: pathlib.Path | str, *, value: typing.Any, varname: str) -> None:
     # The UUID is probably overkill because it would be very unusual for
     # me to have multiple, concurrent writes going on, but it doesn't hurt.
     tmp_p = p.with_suffix(f".{uuid.uuid4()}.js.tmp")
-    tmp_p.write_text(js_string)
+
+    with tmp_p.open("x") as out_file:
+        out_file.write_text(js_string)
+
     tmp_p.rename(p)