alt getting there

alt/fish.nix

@@ -0,0 +1,54 @@
+{ config, pkgs, ... }:
+{
+  programs.fish = {
+    enable = true;
+    interactiveShellInit = "fish_add_path ${config.xdg.dataHome}/npm/packages/bin";
+    shellInit = ''
+      set -gx EDITOR "nvim"
+      set -gx VISUAL "nvim"
+
+      function fish_greeting; end
+
+      function startrloft --description 'Starts R with custom environment'
+        set -lx R_ENVIRON_USER "~/.config/rloft/RLoft_environ"
+        R -q
+      end
+
+      function vd --wraps vim --description 'vim with date in filename'
+        nvim (ymd)_$argv.md
+      end
+
+      function lipsum --description 'Create placeholder text'
+        nix-shell -p perl536Packages.TextLorem --run 'lorem '(echo $argv)
+      end
+
+      set -U fish_prompt_pwd_dir_length 0
+
+      function fish_prompt --description "Write out the prompt"
+        echo -s (set_color brblack) (basename $PWD) (set_color normal) (set_color magenta) ' $ ' (set_color normal)
+      end
+
+      function fish_right_prompt --description "Display info to the right of the prompt"
+        echo -s (__fish_git_prompt) 
+      end
+
+      function fish_mode_prompt; end
+
+      set fish_cursor_default     line blink
+
+      set __fish_git_prompt_showdirtystate 'yes'
+      set __fish_git_prompt_showstashstate 'yes'
+      set __fish_git_prompt_showuntrackedfiles 'yes'
+      set __fish_git_prompt_showupstream 'yes'
+      set __fish_git_prompt_color_upstream_ahead green
+      set __fish_git_prompt_color_upstream_behind red
+      set __fish_git_prompt_char_dirtystate '*'
+      set __fish_git_prompt_char_stagedstate '→'
+      set __fish_git_prompt_char_untrackedfiles '☡'
+      set __fish_git_prompt_char_stashstate '↩'
+      set __fish_git_prompt_char_upstream_ahead '+'
+      set __fish_git_prompt_char_upstream_behind '-'
+
+    '';
+  };
+}