general: Export envar FFF_LEVEL to make programs aware if fff is the parent

1 files changed, 5 insertions, 0 deletions

diff --git a/fff b/fff
index 0c16e26..af5c282 100755
--- a/fff
+++ b/fff
@@ -713,6 +713,11 @@ key() {
         # Spawn a shell.
         "${FFF_KEY_SHELL:=!}")
             reset_terminal
+
+            # Make fff aware of how many times it is nested.
+            export FFF_LEVEL
+            ((FFF_LEVEL++))
+
             cd "$PWD" && "$SHELL"
             setup_terminal
             redraw