Re: [PATCH v2 3/3] Changes for a faster build using less disk space

["Roberto A. Foglietta" <roberto.foglietta@gmail.com>]

On Fri, 6 Jan 2023 at 18:38, Uladzimir Bely <ubely@ilbers.de> wrote:
>
> In the email from Friday, 6 January 2023 18:58:26 +03 user Henning Schild
> wrote:

> Original patch from Roberto included both `--exclude-caches` and `--
> exclude=var/cache/apt/archives"` options for `tar`. First one was expected to
> automatically exclude all directories that contain special CACHEDIR.TAG file
> [1]. But it appeared not to work. Investigating the problem shown that it
> should not be empty file: GNU tar expects file starts with "Signature:
> 8a477f597d28d172789f06886806bc55" line.
>
> It means, all the stuff with multiple "touch CACHEDIR.TAG" was useless and the
> actually only option "--exclude=var/cache/apt/archives" did the trick.
>
> I fixed first and removed second option. But you are right, we can do vice
> versa and it should look even simpler.
>

vice-versa means using --exclude because we know the folders in
advance and left --exclude-caches / --exclude-backups for the pain of
the users...
...as I did because it is simpler in terms of code changes and more
efficient at running time.
:-)

Bests, R-