[PATCH v3] hg: allow usage of XDG_CONFIG_HOME and $HOME/.config/hg/hgrc

[Yuya Nishihara]

On Tue, 14 Feb 2017 15:53:24 +0100, David Demelier wrote:
> Le 14/02/2017 à 14:34, Yuya Nishihara a écrit :
> > On Mon, 13 Feb 2017 09:37:48 -0800, Jun Wu wrote:
> >> Excerpts from David Demelier's message of 2017-02-13 15:43:45 +0100:
> >>> Le 10/02/2017 à 10:08, Raffaele Salmaso a écrit :
> >>>> Hi,
> >>>>
> >>>> On Fri, Feb 10, 2017 at 9:19 AM, David Demelier
> >>>> <demelier.david at gmail.com <mailto:demelier.david at gmail.com>> wrote:
> >>>>
> >>>>     I've updated the code so that hg config --edit still create a
> >>>>     ~/.hgrc file first if no file is found.
> >>>>
> >>>> Why?
> >>>> If you support this specs, I expect it does the right thing by default
> >>>> (or at least ask, if any)
> >>>>
> >>>> A lot of things can go wrong even for $HOME/.hgrc, so I don't think it
> >>>> is a bigger problem creating a directory first
> >>>>
> >>>
> >>> I have no problem with this but I would like to know if everybody agree
> >>> with that.
> >>>
> >>
> >> I'm +1 on creating the directory and editing XDG_CONFIG_HOME/hg/hgrc if
> >> ~/.hgrc does not exist.
> >
> > -1 for compatibility with old versions. Since old hg won't read .config/hg/hgrc,
> > creating it by default could confuse users.
> >
> 
> So if I understand correctly, that means:
> 
> 1. the user installs a recent version of Mercurial
> 2. the user init a config using hg config --edit
> 3. the user downgrades Mercurial

Yes. Alternatively,

 3. the user switch to another host sharing HOME