code simplification: merge /usr/libexec/default-editor/default_editor.sh into /etc/profile.d/50_default_editor.sh

Author: adrelanos

etc/profile.d/50_default_editor.sh

@@ -14,13 +14,44 @@
 ## <code>XDG_CONFIG_DIRS</code> environment variable.
 #### meta end
 
-if [ -x /usr/libexec/default-editor/default_editor.sh ]; then
-   . /usr/libexec/default-editor/default_editor.sh || true >/dev/null 2>/dev/null
-fi
+## Sets mousepad as the default editor for environment variable 'VISUAL'
+## is unset and if mousepad is installed.
+
+## Environment variable 'VISUAL' will also be honored by 'sudoedit'.
+
+## https://forums.whonix.org/t/use-sudoedit-in-whonix-documentation/7599
+
+## please provide /usr/bin/visual
+## https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758228
 
 if [ -z "$XDG_DATA_DIRS" ]; then
    XDG_DATA_DIRS="/usr/local/share/:/usr/share/"
 fi
 if ! printf '%s\n' "$XDG_DATA_DIRS" | grep -- "/usr/share/usability-misc/xdg-override/" >/dev/null 2>/dev/null ; then
    export XDG_DATA_DIRS="/usr/share/usability-misc/xdg-override/:$XDG_DATA_DIRS"
 fi
+
+if [ "$XDG_SESSION_TYPE" = "tty" ]; then
+   true "$0: INFO: Running inside tty. Stop."
+   return 0
+   exit 0
+fi
+
+if [ ! "$VISUAL" = "" ]; then
+   return 0
+   exit 0
+fi
+
+if command -v featherpad 1>/dev/null 2>/dev/null ; then
+   VISUAL="featherpad"
+   export VISUAL
+   return 0
+   exit 0
+fi
+if command -v mousepad 1>/dev/null 2>/dev/null ; then
+   VISUAL="mousepad"
+   export VISUAL
+   return 0
+   exit 0
+fi
+