Introduce themes

conf.d/25_prompt_theme.fish

@@ -0,0 +1,12 @@
+# Prompt theme
+
+# Change "default" to preferred theme name
+set -g FISH_PROMPT_THEME default
+
+set -l theme_dir ~/.config/fish/themes/$FISH_PROMPT_THEME
+
+source $theme_dir/prompt.fish
+
+if test -f $theme_dir/right_prompt.fish
+    source $theme_dir/right_prompt.fish
+end

conf.d/31_right_prompt.fish

@@ -1,2 +0,0 @@
-# Right-side prompt
-# Empty for now

functions/fish_prompt.fish

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+function fish_prompt
+    __fish_theme_prompt
+end

functions/fish_right_prompt.fish

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+function fish_right_prompt
+    if functions -q __fish_theme_right_prompt
+        __fish_theme_right_prompt
+    end
+end

themes/default/prompt.fish

@@ -1,6 +1,7 @@
+# Default theme
 # Shell prompt: Left side
 
-function fish_prompt
+function __fish_theme_prompt
     set -l exit_status $status
     set -l prompt_symbol
     set -l user_color