add fish and alacritty themes

server/.config/fish/functions/fish_right_prompt.fish

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+# right prompt for agnoster theme
+# shows vim mode status
+
+# ===========================
+# Color setting
+
+# You can set these variables in config.fish like:
+# set -g color_dir_bg red
+# If not set, default color from agnoster will be used.
+# ===========================
+set -q color_vi_mode_indicator; or set color_vi_mode_indicator black
+set -q color_vi_mode_normal; or set color_vi_mode_normal green
+set -q color_vi_mode_insert; or set color_vi_mode_insert blue 
+set -q color_vi_mode_visual; or set color_vi_mode_visual red
+
+
+# ===========================
+# Cursor setting
+
+# You can set these variables in config.fish like:
+# set -g cursor_vi_mode_insert bar_blinking
+# ===========================
+set -q cursor_vi_mode_normal; or set cursor_vi_mode_normal box_steady
+set -q cursor_vi_mode_insert; or set cursor_vi_mode_insert bar_steady
+set -q cursor_vi_mode_visual; or set cursor_vi_mode_visual box_steady
+
+
+function fish_cursor_name_to_code -a cursor_name -d "Translate cursor name to a cursor code"
+  # these values taken from
+  # https://github.com/gnachman/iTerm2/blob/master/sources/VT100Terminal.m#L1646
+  # Beginning with the statement "case VT100CSI_DECSCUSR:"
+  if [ $cursor_name = "box_blinking" ]
+    echo 1
+  else if [ $cursor_name = "box_steady" ]
+    echo 2
+  else if [ $cursor_name = "underline_blinking" ]
+    echo 3
+  else if [ $cursor_name = "underline_steady" ]
+    echo 4
+  else if [ $cursor_name = "bar_blinking" ]
+    echo 5
+  else if [ $cursor_name = "bar_steady" ]
+    echo 6
+  else
+    echo 2
+  end
+end
+
+function prompt_vi_mode -d 'vi mode status indicator'
+  set -l right_segment_separator \uE0B2
+  switch $fish_bind_mode
+      case default
+        set -l mode (fish_cursor_name_to_code $cursor_vi_mode_normal)
+        echo -e "\e[\x3$mode q"
+        set_color $color_vi_mode_normal
+        echo "$right_segment_separator"
+        set_color -b $color_vi_mode_normal $color_vi_mode_indicator
+        echo " N "
+      case insert
+        set -l mode (fish_cursor_name_to_code $cursor_vi_mode_insert)
+        echo -e "\e[\x3$mode q"
+        set_color $color_vi_mode_insert
+        echo "$right_segment_separator"
+        set_color -b $color_vi_mode_insert $color_vi_mode_indicator
+        echo " I "
+      case visual
+        set -l mode (fish_cursor_name_to_code $cursor_vi_mode_visual)
+        echo -e "\e[\x3$mode q"
+        set_color $color_vi_mode_visual
+        echo "$right_segment_separator"
+        set_color -b $color_vi_mode_visual $color_vi_mode_indicator
+        echo " V "
+    end
+end
+
+function fish_right_prompt -d 'Prints right prompt'
+  if not test "$fish_key_bindings" = "fish_default_key_bindings"
+    prompt_vi_mode
+    set_color normal
+  end
+end