About Mercurial, .hgignore file and glob syntax

Question

Is it possible, while using glob syntax for an .hgignore file, to recursively ignore certain files and folders, except one?

Assuming that you have:

a/
a/b
a/c
a/d

Something like:

syntax globe:
a
^a/b

This should ideally ignore c and d and keep b.

I know this has been discussed in other SO questions, but it seems they're all using regex mode for the syntax.

Answer 1

The glob syntax is transformed to regex in match.py. It seems that this is the syntax you are looking for:

syntax:glob

a/*[!b]

Answer 2

If you want to ignore all but one, just add that one. Adding a file overrides ignoring it, which differs from subversion or cvs, but is incredibly handy.