Re: Allow the TERM env variable to be overwritten by .ssh/config

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Hi

.terminfo/ should work on OpenBSD too (as well as .terminfo.db), at
least it does on -current and I don't remember any recent changes.


On Tue, Sep 23, 2014 at 11:01:02AM -0700, Iain Morgan wrote:
> On Mon, Sep 22, 2014 at 20:35:06 -0700, Palmer Dabbelt wrote:
> > On Mon, 22 Sep 2014 19:06:51 PDT (-0700), imorgan@xxxxxxxxxxxx wrote:
> > > On Mon, Sep 22, 2014 at 15:33:29 -0700, Palmer Dabbelt wrote:
> > > > This is pretty much the same request as an old mailing list thread
> > > >
> > > > http://marc.info/?l=openssh-unix-dev&m=134073696320230&w=2
> > > >
> > > > for almost exactly the same reason: some machines don't have
> > > > new-enough terminal info databases to support newer TERM strings
> > > > ("rxvt-unicode-256color" in my case).  As such, I'd like to be able to
> > > > override the TERM that is forwarded to some machines from my
> > > > .ssh/config.
> > > >
> > > > The solutions proposed in that post don't work well for me because I
> > > > like having a shared .bashrc and don't want to go making it super long
> > > > just to have a big list of hosts that don't support "*-256color".
> > > >
> > > 
> > > Perhaps you could use tput to test for terminal capabilities rather than
> > > keeping a list of hosts.
> > > 
> > > I've had to deal with a somewhat different issue; preferring to suppress
> > > color support. I used to use "tput colors" to test for the number of
> > > colors supported, and re-define TERM as needed. More recently, I taken
> > > to simply overriding the terminfo definitions for those terminal types
> > > that I use by creating a ~/.terminfo directory or ~/.terminfo.db
> > > database.
> > 
> > These are all hosts that are managed by the university, so I've got to
> > have some username overrides in there anyway.  This way just seemed
> > like the path of least resistance.
> > 
> > Just doing a "tput colors" doesn't seem to do it for me:
> > 
> > $ tput colors
> > tput: unknown terminal "rxvt-unicode-256color"
> > 
> > I could just check for a "tput" failure and redefine the terminal, I
> > don't really like overriding TERM because I worry about how it'll
> > interact with screen and such.
> > 
> > I think overriding the terminfo database is probably the best way to
> > do this, I didn't know that was possible!  Unfortunately it doesn't
> > appear to work on OSX, but that might just be user error...
> 
> OS X may need a ~/.terminfo.db file rather than a ~/.terminfo directory.
> On Linux (RHEL and SLES) ~/.terminfo works, whereas on OpenBSD you need
> ~/.terminfo.db. I haven't experimented with OS X.
> 
> -- 
> Iain Morgan
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