Atomic File Writes in Go: Prevent Partial and Corrupted Files
Writing a file with os.WriteFile is simple, but it is not always the safest choice for configuration files, generated metadata, caches, state files, or other data that must never be left half-written.
If a process crashes or the machine loses power while a file is being replaced, readers may observe incomplete content. A common way to reduce this risk is an atomic file write: write the new content to a temporary file first, then replace the destination with a rename.
