- implode function + confirmation prompt when invoking gvm implode

- test case

bin/gvm

@@ -15,7 +15,7 @@ fi
 
 command=$1
 if [[ $command == "implode" ]]; then
-	rm -rf "$GVM_ROOT"
+  gvm_implode
 	exit 0
 fi
 

scripts/env/gvm

@@ -26,7 +26,8 @@ function gvm() {
 		shift
 		gvm_use "$@"
 	elif [[ "$1" == "implode" ]]; then
-		rm -rf "$GVM_ROOT"
+		. "$GVM_ROOT/scripts/env/implode"
+		gvm_implode
 	elif [[ "$1" == "pkgset" ]] && [[ "$2" == "use" ]]; then
 		. "$GVM_ROOT/scripts/env/pkgset-use"
 		shift

scripts/env/implode

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+function gvm_implode() {
+  read -p "Are you sure? [Y/n] " -n 1 -r
+  echo
+  if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+   display_message "Action cancelled"
+ else
+   (rm -rf "$GVM_ROOT" && display_message "GVM successfully removed") || display_error "Failed to uninstall gvm"
+ fi
+}

scripts/install

@@ -95,6 +95,7 @@ create_enviroment() {
 	echo "export DYLD_LIBRARY_PATH; DYLD_LIBRARY_PATH=\"\${GVM_OVERLAY_PREFIX}/lib:\${DYLD_LIBRARY_PATH}\"" >> "$new_env_file"
 	echo "export PKG_CONFIG_PATH; PKG_CONFIG_PATH=\"\${GVM_OVERLAY_PREFIX}/lib/pkgconfig:\${PKG_CONFIG_PATH}\"" >> "$new_env_file"
 	. "$GVM_ROOT/scripts/env/use"
+	. "$GVM_ROOT/scripts/env/implode"
 	gvm_use "$GO_NAME" &> /dev/null ||
 		display_fatal "Failed to use installed version"
 	gvm pkgset create global

tests/zzgvm_implode_comment_test.sh

@@ -0,0 +1,3 @@
+source $GVM_ROOT/scripts/gvm
+yes n | gvm implode # status=0; match=/Action cancelled/
+yes | gvm implode # status=0; match=/GVM successfully removed/