[PATCH 3 of 5] paths: use single loop for both search=None|pattern cases

[Yuya Nishihara]

On Tue, 12 Jan 2016 00:37:25 +0000, Martin von Zweigbergk wrote:
> On Sat, Jan 9, 2016 at 1:49 AM Yuya Nishihara <yuya at tcha.org> wrote:
> 
> > # HG changeset patch
> > # User Yuya Nishihara <yuya at tcha.org>
> > # Date 1450011752 -32400
> > #      Sun Dec 13 22:02:32 2015 +0900
> > # Node ID 2390e7462eec357b23547d2889717ec98710f9b0
> > # Parent  d9f3d8bea3ea4d6e501577bc7e3f32c5788c7550
> > paths: use single loop for both search=None|pattern cases
> >
> > This will help porting to the formatter API. This patch adds test for empty
> > pathitems to make sure "hg paths" never say "not found!".
> >
> > diff --git a/mercurial/commands.py b/mercurial/commands.py
> > --- a/mercurial/commands.py
> > +++ b/mercurial/commands.py
> > @@ -5413,18 +5413,16 @@ def paths(ui, repo, search=None):
> >      Returns 0 on success.
> >      """
> >      if search:
> > -        for name, path in sorted(ui.paths.iteritems()):
> > -            if name == search:
> > -                if not ui.quiet:
> > -                    ui.write("%s\n" % util.hidepassword(path.rawloc))
> > -                return
> > -        if not ui.quiet:
> > -            ui.warn(_("not found!\n"))
> > -        return 1
> > +        pathitems = [(name, path) for name, path in ui.paths.iteritems()
> > +                     if name == search]
> >      else:
> >          pathitems = sorted(ui.paths.iteritems())
> >
> >      for name, path in pathitems:
> > +        if search and not ui.quiet:
> > +            ui.write("%s\n" % util.hidepassword(path.rawloc))
> > +        if search:
> > +            continue
> >          if ui.quiet:
> >              ui.write("%s\n" % name)
> >          else:
> > @@ -5432,6 +5430,13 @@ def paths(ui, repo, search=None):
> >              for subopt, value in sorted(path.suboptions.items()):
> >                  ui.write('%s:%s = %s\n' % (name, subopt, value))
> >
> > +    if search and not pathitems:
> > +        if not ui.quiet:
> > +            ui.warn(_("not found!\n"))
> > +        return 1
> >
> 
> Why delay this until after the loop over an empty array? I didn't see a
> future patch that depended on it either.

fm.end() is necessary to print "[]" by "hg paths -Tjson unknown_name".