rxvt-unicode: Terminfo missing

[ertes]

With the last update the terminfo files of rxvt-unicode (e.g. rxvt-unicode-256color) are no longer installed. Looking at the closure of rxvt-unicode reveals that they are still in the store, but they don't get added to the user environment:

% nix-store -qR ~/.nix-profile/bin/urxvt
...
/nix/store/wd411hjbwx6vh5nhz898gi2mxxld6k6l-rxvt-unicode-9.20-with-perl-with-unicode3-terminfo
/nix/store/bzr5jnzjr2kd2xwpljl51vbl1j1lhvhz-rxvt-unicode-9.20-with-perl-with-unicode3
/nix/store/f0mchnya10pg8bx7nj36basszbq4hssc-urxvt-perls
/nix/store/kcn8fwga4803n2nw6md5ykdmswbs9r5n-urxvt-tabbedex
/nix/store/bag91pgd78flx49kzsdpbh4hwgk5wmrb-rxvt-unicode-9.20-with-perl-with-unicode3-with-plugins

While this is probably easy to fix, ultimately we should perhaps start to separate the terminfo files of terminal emulators into separate packages. You often need them where you don't need the corresponding terminal emulator, for example on servers.

[bluescreen303]

@ertes urxvt already provides a separate output for its terminfo files, indeed for use on servers.
https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/misc/rxvt_unicode/default.nix

just install rxvt_unicode.terminfo if you don't need urxvt itself.

[vcunat]

AFAIK the current state is good. Reopen if you have a suggestion how to improve it.

[bluescreen303]

Well perhaps the terminfo output can be propagated to the user env somehow?

[pjones]

Perhaps this is a problem solely with the rxvt_unicode_with-plugins package, but urxvt starts with TERM defaulting to rxvt-unicode-256color. That terminfo file is not installed into the user environment, although it is present in the store.

I believe that @bluescreen303 is correct and this terminfo file needs to be available in the user environment. Right now I have to configure urxvt to set TERM to something other than its default, which shouldn't be necessary.