Re: Bug#246491: diff: --dry-run does not check backup file names (fwd)

[Paul Eggert]

Santiago Vila <address@hidden> writes:

> When running with --dry-run, diff should probably check that it
> will be possible to create the requested backup files.

diff doesn't have a --dry-run option.  Perhaps you meant 'patch'?

Anyway, it's not possible to do that in general for patch --dry-run.
There are too many things that could go wrong, and it's impossible to
anticipate them in general.  For example, the file system could run
out of space.