[PATCH 1 of 2] cat: record the current behavior of wildcard matches in subrepos

[Yuya Nishihara]

On Sun, 26 Nov 2017 19:26:24 +0900, Yuya Nishihara wrote:
> On Sat, 25 Nov 2017 23:37:16 -0500, Matt Harbison wrote:
> > On Sat, 25 Nov 2017 02:35:03 -0500, Yuya Nishihara <yuya at tcha.org> wrote:
> > 
> > > # HG changeset patch
> > > # User Yuya Nishihara <yuya at tcha.org>
> > > # Date 1511591374 -32400
> > > #      Sat Nov 25 15:29:34 2017 +0900
> > > # Node ID 38e952030f0c4746257280d47f0f94b6cb9ddb41
> > > # Parent  8287df8b7be545fdafa22b771012ac65f6264d12
> > > cat: record the current behavior of wildcard matches in subrepos
> > >
> > > It appears that Mercurial subrepo supports any match patterns.
> > >
> > > diff --git a/mercurial/help/subrepos.txt b/mercurial/help/subrepos.txt
> > > --- a/mercurial/help/subrepos.txt
> > > +++ b/mercurial/help/subrepos.txt
> > > @@ -90,7 +90,7 @@ Interaction with Mercurial Commands
> > >  :archive: archive does not recurse in subrepositories unless
> > >      -S/--subrepos is specified.
> > > -:cat: cat currently only handles exact file matches in subrepos.
> > > +:cat: cat currently only handles exact file matches in Git subrepos.
> > 
> > Should this be "cat currently only handles pattern matches in Mercurial  
> > subrepos"?  The test above this new inexact match test is for an exact hg  
> > match.  Git bails early on m.anypats().
> 
> Hmm, how about this?
> 
>   Git subrepositories only support exact file matches. Subversion
>   subrepositories are currently ignored.

Oh, subrepos. "cat" is recursive by default, but "files" and friends aren't.
Is this a bug of "cat"?

  $ hg files 'glob:**'
  .hgsub
  .hgsubstate

  $ hg cat -T '{path}\n' 'glob:**'
  .hgsub
  .hgsubstate
  sub/file