sneak
8686091f2d
check / check (push) Failing after 27s
downloadFile opened the temp file with os.Create, which opens and empties a file already at that name. If that file was a hard link to a file outside the destination directory, fetch overwrote the outside file. It now removes whatever is at the temp name, which removes only that name, and creates the temp file with O_EXCL, so the create fails if the name reappears in between. A leftover temp file from an interrupted run is still replaced. The new test puts a hard link at the temp name and checks that fetch succeeds and the outside file is unchanged. Model: opus-5-5