feat: initial commit; NixOS Era

pkgs/fish/prompt.fish

@@ -0,0 +1,76 @@
+function fish_mode_prompt; end
+
+function fish_prompt
+    set -l command_status $status;
+
+	set -l duration '';
+	begin
+		[ $CMD_DURATION -gt 700 ]; and set -l seconds \
+			"$(round -p 2 (math $CMD_DURATION / 1000 % 60))s";
+		[ $CMD_DURATION -gt 60000 ]; and set -l minutes \
+			"$(round (math $CMD_DURATION / 60000))m";
+		
+		[ $CMD_DURATION -gt 700 ]; and set duration (string join '' -- \
+			 (set_color normal) \
+			 'took ' \
+			 (set_color yellow) \
+			 (string join ' ' -- $minutes $seconds) \
+		);
+	end
+
+    set -l mode
+	begin
+		function color_and_wrap -a color char
+			string join '' -- (set_color --bold $color) "[$char]"
+			functions -e color_and_wrap
+		end
+
+		set -l indicator \
+			(switch $fish_bind_mode
+				case default;     color_and_wrap red 'N'
+				case insert;      color_and_wrap cyan 'I'
+				case replace_one; color_and_wrap green 'R'
+				case visual;      color_and_wrap brmagenta 'V'
+				case '*';         color_and_wrap red '?'
+			end) 
+		set mode (string join '' -- $indicator (set_color normal) ' ')
+	end
+
+	set -l nix_shell
+	begin
+		set -l packages (string split ' ' -- $FISH_NIX_PACKAGES)
+
+		if [ -n "$IN_NIX_SHELL" ]
+			set nix_shell "$(set_color brblue)  "
+			
+			set -ql packages[1]; and set nix_shell "$nix_shell($packages[1]";
+			set -ql packages[2]; and set nix_shell "$nix_shell, $packages[2]";
+			set -ql packages[3]; and not set -ql packages[4]; and set nix_shell "$nix_shell, $packages[3]";
+
+			set -ql packages[4]; and set nix_shell "$nix_shell, +$(math (count $packages) - 2) more"
+
+			set -ql packages[1]; set nix_shell "$nix_shell) "
+		end
+	end
+
+	set -l cursor_color (set_color green)
+    [ $command_status -ne 0 ]; and set -l cursor_color (set_color red)
+
+    set -l pwd (string join '' -- \
+		$cursor_color \
+		(prompt_pwd -D 2 -d 1) \
+		(set_color normal) \
+	);
+
+	[ (fish_vcs_prompt) ]; and set -l git (string join '' -- \
+		(set_color yellow) \
+		' 󰘬 ' \
+		(string sub -s 3 -e -1 -- (fish_vcs_prompt)) \
+		' ' \
+	);
+
+	[ $command_status -ne 0 ]; and set -l last_status "[$command_status]";
+
+	[ -n $duration ]; and echo $duration
+    string join '' -- $mode $nix_shell $pwd $git $cursor_color $last_status '|> '
+end