fix: install supervisor on user if doesnt exist

bench/patches/v5/fix_user_permissions.py

@@ -1,16 +1,20 @@
 # imports - standard imports
 import subprocess
+import sys
 
 # imports - module imports
-from bench.utils import log, get_cmd_output, exec_cmd
+from bench.utils import log, get_cmd_output, exec_cmd, which
 from bench.cli import change_uid_msg
 
 
 def execute(bench_path):
-	"""fix supervisor using root then remove bench sudo later
-	chronology samajhiye"""
 	cmd = ["sudo", "-n", "bench"]
+
 	is_bench_sudoers_set = (not subprocess.call(cmd)) or (change_uid_msg in get_cmd_output(cmd))
+	is_supervisor_installed = which('supervisorctl')
+
+	if not is_supervisor_installed:
+		exec_cmd("{} -m pip install supervisor".format(sys.executable))
 
 	if is_bench_sudoers_set:
 		exec_cmd("sudo bench setup supervisor --yes")