fix: better warning and cache handling

bench/cli.py

@@ -1,16 +1,27 @@
+# imports - standard imports
 import atexit
+import json
+import logging
+import os
+import pwd
+import subprocess
+import sys
+
+# imports - third party imports
 import click
-import os, sys, logging, json, pwd, subprocess
-from bench.utils import is_root, PatchError, drop_privileges, get_env_cmd, get_cmd_output, get_frappe, log, is_dist_editable, find_parent_bench, check_latest_version
+
+# imports - module imports
 from bench.app import get_apps
-from bench.config.common_site_config import get_config
 from bench.commands import bench_command
+from bench.config.common_site_config import get_config
+from bench.utils import PatchError, bench_cache_file, check_latest_version, drop_privileges, find_parent_bench, generate_command_cache, get_cmd_output, get_env_cmd, get_frappe, is_bench_directory, is_dist_editable, is_root, log
 
 
 logger = logging.getLogger('bench')
 from_command_line = False
 change_uid_msg = "You should not run this command as root"
 
+
 def cli():
 	global from_command_line
 	from_command_line = True
@@ -20,46 +31,50 @@ def cli():
 	change_dir()
 	change_uid()
 
-	if is_dist_editable("bench"):
+	if is_dist_editable("bench") and len(sys.argv) > 1 and sys.argv[1] != "src":
 		log("bench is installed in editable mode!\n\nThis is not the recommended mode of installation for production. Instead, install the package from PyPI with: `pip install frappe-bench`\n", level=3)
 
+	if not is_bench_directory() and not cmd_requires_root() and len(sys.argv) > 1 and sys.argv[1] not in ("init", "find", "src"):
+		log("Command not being executed in bench directory", level=3)
+
 	if len(sys.argv) > 2 and sys.argv[1] == "frappe":
 		return old_frappe_cli()
 
-	elif len(sys.argv) > 1 and sys.argv[1] in get_frappe_commands():
-		return frappe_cmd()
+	elif len(sys.argv) > 1:
+		if sys.argv[1] in get_frappe_commands() + ["--site", "--verbose", "--force", "--profile"]:
+			return frappe_cmd()
 
-	elif len(sys.argv) > 1 and sys.argv[1] in ("--site", "--verbose", "--force", "--profile"):
-		return frappe_cmd()
+		elif sys.argv[1] == "--help":
+			print(click.Context(bench_command).get_help())
+			print(get_frappe_help())
+			return
 
-	elif len(sys.argv) > 1 and sys.argv[1]=="--help":
-		print(click.Context(bench_command).get_help())
-		print(get_frappe_help())
-		return
+		elif sys.argv[1] in get_apps():
+			return app_cmd()
 
-	elif len(sys.argv) > 1 and sys.argv[1] in get_apps():
-		return app_cmd()
+	if not (len(sys.argv) > 1 and sys.argv[1] == "src"):
+		atexit.register(check_latest_version)
+
+	try:
+		bench_command()
+	except PatchError:
+		sys.exit(1)
 
-	else:
-		try:
-			atexit.register(check_latest_version)
-			bench_command()
-		except PatchError:
-			sys.exit(1)
 
 def check_uid():
 	if cmd_requires_root() and not is_root():
 		log('superuser privileges required for this command', level=3)
 		sys.exit(1)
 
+
 def cmd_requires_root():
 	if len(sys.argv) > 2 and sys.argv[2] in ('production', 'sudoers', 'supervisor', 'lets-encrypt', 'fonts',
-		'print', 'firewall', 'ssh-port', 'role', 'fail2ban', 'wildcard-ssl'):
+		'print', 'firewall', 'ssh-port', 'role', 'fail2ban', 'wildcard-ssl', 'install'):
 		return True
-	if len(sys.argv) >= 2 and sys.argv[1] in ('patch', 'renew-lets-encrypt', 'disable-production',
-		'install'):
+	if len(sys.argv) >= 2 and sys.argv[1] in ('patch', 'renew-lets-encrypt', 'disable-production'):
 		return True
 
+
 def change_dir():
 	if os.path.exists('config.json') or "init" in sys.argv:
 		return
@@ -70,6 +85,7 @@ def change_dir():
 		if os.path.exists(dir_path):
 			os.chdir(dir_path)
 
+
 def change_uid():
 	if is_root() and not cmd_requires_root():
 		frappe_user = get_config(".").get('frappe_user')
@@ -80,35 +96,37 @@ def change_uid():
 			log(change_uid_msg, level=3)
 			sys.exit(1)
 
+
 def old_frappe_cli(bench_path='.'):
 	f = get_frappe(bench_path=bench_path)
 	os.chdir(os.path.join(bench_path, 'sites'))
 	os.execv(f, [f] + sys.argv[2:])
 
+
 def app_cmd(bench_path='.'):
 	f = get_env_cmd('python', bench_path=bench_path)
 	os.chdir(os.path.join(bench_path, 'sites'))
 	os.execv(f, [f] + ['-m', 'frappe.utils.bench_helper'] + sys.argv[1:])
 
+
 def frappe_cmd(bench_path='.'):
 	f = get_env_cmd('python', bench_path=bench_path)
 	os.chdir(os.path.join(bench_path, 'sites'))
 	os.execv(f, [f] + ['-m', 'frappe.utils.bench_helper', 'frappe'] + sys.argv[1:])
 
-def get_frappe_commands(bench_path='.'):
-	python = get_env_cmd('python', bench_path=bench_path)
-	sites_path = os.path.join(bench_path, 'sites')
-	if not os.path.exists(sites_path):
-		log("Command not being executed in bench directory", level=3)
-		return []
-	try:
-		output = get_cmd_output("{python} -m frappe.utils.bench_helper get-frappe-commands".format(python=python), cwd=sites_path)
-		return json.loads(output)
-	except subprocess.CalledProcessError as e:
-		if hasattr(e, "stderr"):
-			print(e.stderr.decode('utf-8'))
+
+def get_frappe_commands():
+	if not is_bench_directory():
 		return []
 
+	if os.path.exists(bench_cache_file):
+		command_dump = open(bench_cache_file, 'r').read() or '[]'
+		return json.loads(command_dump)
+
+	else:
+		return generate_command_cache()
+
+
 def get_frappe_help(bench_path='.'):
 	python = get_env_cmd('python', bench_path=bench_path)
 	sites_path = os.path.join(bench_path, 'sites')
@@ -118,6 +136,7 @@ def get_frappe_help(bench_path='.'):
 	except:
 		return ""
 
+
 def change_working_directory():
 	"""Allows bench commands to be run from anywhere inside a bench directory"""
 	cur_dir = os.path.abspath(".")