hmApps, refactor, clean up, break groups

hmModules/apps/nnn/app.nix

@@ -0,0 +1,20 @@
+{ config, lib, ... }:
+
+{
+  options.nnn = {
+    enable = lib.mkEnableOption "Enables nnn";
+  };
+
+  config = lib.mkIf config.nnn.enable {
+    programs.nnn.enable = true;
+    home.sessionVariables = {
+      NNN_FCOLORS = "0000E6310000000000000000";
+      NNN_OPTS = "eH";
+      NNN_FIFO = "/tmp/nnn.fifo";
+      NNN_TRASH = lib.mkIf config.trash.enable "1";
+    };
+    fish.extraFunctions = lib.mkIf config.fish.enable {
+      n = ''${builtins.readFile ./nnn_fish_function.fish}'';
+    };
+  };
+}

hmModules/apps/nnn/nnn_fish_function.fish

@@ -0,0 +1,30 @@
+# Block nesting of nnn in subshells
+if test -n "$NNNLVL"
+    if [ (expr $NNNLVL + 0) -ge 1 ]
+  exit
+        return
+    end
+end
+
+# The default behaviour is to cd on quit (nnn checks if NNN_TMPFILE is set)
+# To cd on quit only on ^G, remove the "-x" as in:
+#    set NNN_TMPFILE "$XDG_CONFIG_HOME/nnn/.lastd"
+# NOTE: NNN_TMPFILE is fixed, should not be modified
+if test -n "$XDG_CONFIG_HOME"
+    set -x NNN_TMPFILE "$XDG_CONFIG_HOME/nnn/.lastd"
+else
+    set -x NNN_TMPFILE "$HOME/.config/nnn/.lastd"
+end
+
+# Unmask ^Q (, ^V etc.) (if required, see `stty -a`) to Quit nnn
+# stty start undef
+# stty stop undef
+# stty lwrap undef
+# stty lnext undef
+
+nnn -T v $argv
+
+if test -e $NNN_TMPFILE
+    source $NNN_TMPFILE
+    rm $NNN_TMPFILE
+end