hgignore: ignore all pdf files, save the ones in a subdirectory

[Malcolm Matalka]

This SO answer might help.  Looks like you need to use regex and specify
a negation in the pattern:

https://stackoverflow.com/questions/1512058/hgignore-help-ignoring-all-files-but-certain-ones

Uwe Brauer <oub at mat.ucm.es> writes:

> Hi
>
> I realised that I would like to hg to ignore all pdf files, save some
> specific ones, which are placed in a certain subdirectory.
>
> How can I achieve that, that is to tell hgignore not to ignore a
> specific subdirectory?
>
> Thanks
>
> Uwe Brauer
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