[bug#43539] [PATCH] gnu: vim: Automatically find vim plugins.

[Efraim Flashner]

On Sun, Sep 20, 2020 at 11:57:58PM +0300, Efraim Flashner wrote:
> On Sun, Sep 20, 2020 at 09:50:12PM +0200, Ricardo Wurmus wrote:
> > 
> > Efraim Flashner <efraim@flashner.co.il> writes:
> > 
> > > On Sun, Sep 20, 2020 at 09:29:27PM +0200, Ricardo Wurmus wrote:
> > >> 
> > >> Efraim Flashner <efraim@flashner.co.il> writes:
> > >> 
> > >> > diff --git a/gnu/packages/aux-files/guix.vim 
> > >> > b/gnu/packages/aux-files/guix.vim
> > >> > new file mode 100644
> > >> > index 0000000000..ca97f451d8
> > >> > --- /dev/null
> > >> > +++ b/gnu/packages/aux-files/guix.vim
> > >> > @@ -0,0 +1,7 @@
> > >> > +" This appends all of the vim plugins to the end of Vim's runtimepath.
> > >> > +for directory in ["/run/current-system/profile", $HOME . 
> > >> > "/.guix-profile", $GUIX_ENVIRONMENT]
> > >> 
> > >> How about using $GUIX_PROFILE as well or instead of $HOME/.guix-profile?
> > >> This would allow users to keep a separate profile for Vim things.
> > >
> > > That was the one part I didn't really like about my patch. Unfortunately
> > > I don't seem to have $GUIX_PROFILE set on my machine.
> > >
> > > (ins)efraim@E5400 ~$ echo $GUIX_PROFILE
> > >
> > > (ins)efraim@E5400 ~$
> > 
> > Me neither!  But when loading profiles we suggest this approach:
> > 
> >    export GUIX_PROFILE=/the/location/of/the/.guix-profile
> >    source $GUIX_PROFILE/etc/profile
> > 
> > The variable is set in that case, because that affects whether absolute
> > store file names are used or the symlink
> > “/the/location/of/the/.guix-profile”.
> 
> It seems to be the case for the default profile. And in Guix System. I
> could also just add $GUIX_PROFILE as another location in the list of
> directories to search.

The more I think about it the more I see $HOME/.guix-profile as a
"special profile" which is nearly always included in $PATH and other
variables, similar to /run/current-system/profile. With that in mind I
like the attached patch which keeps that path but adds a search for
$GUIX_PROFILE.

I could use environment variables to override vim's builtin search for
$VIM and $VIMRUNTIME, but then we would have to decide to support vim
installed by the user or system-wide.


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0001-gnu-vim-Automatically-find-vim-plugins.patch
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