pub fn atomic_write(path: &Path, contents: &str) -> Result<()>Expand description
Write contents to a file atomically using write-to-temp + rename.
Writes to a temporary file in the same directory as path, then renames
it to the target. rename() is atomic on POSIX when source and destination
are on the same filesystem (guaranteed here since we use the same directory).
The temp file is cleaned up on error.