autosign, led: improve no sudo handling

mmgen/autosign.py

@@ -48,9 +48,9 @@ class SwapMgrBase:
 		return ret
 
 	def disable(self, quiet=False):
-		self.cfg._util.qmsg_r(f'Disabling {self.desc}...')
+		self.cfg._util.qmsg_r(f'Attempting to disable {self.desc}...')
 		ret = self.do_disable()
-		self.cfg._util.qmsg('done')
+		self.cfg._util.qmsg('success')
 		if not quiet:
 			self.cfg._util.qmsg(
 				f'{capfirst(self.desc)} successfully disabled ({fmt_list(ret, fmt="no_quotes")})'
@@ -66,13 +66,14 @@ class SwapMgrBase:
 			for cmd in cmds:
 				run(cmd.split(), check=True)
 		else:
-			nl = '\n' if op == 'disable' else ''
-			fs = blue('{a} {b} by executing the following command{c}:\n{d}')
-			m = nl + fs.format(
-				a = 'Before continuing, please disable' if op == 'disable' else 'Enable',
+			pre = 'failure\n' if op == 'disable' else ''
+			fs = blue('{a} {b} manually by executing the following command{c}:\n{d}')
+			post = orange('[To prevent this message in the future, enable sudo without a password]')
+			m = pre + fs.format(
+				a = 'Please disable' if op == 'disable' else 'Enable',
 				b = self.desc,
 				c = suf(cmds),
-				d = fmt_list(cmds, indent='  ', fmt='col'))
+				d = fmt_list(cmds, indent='  ', fmt='col')) + '\n' + post
 			msg(m)
 			if not self.cfg.test_suite:
 				sys.exit(1)

mmgen/led.py

@@ -20,12 +20,12 @@
 led: Control the LED on a single-board computer
 """
 
-import os,threading
+import sys, os, threading
 from collections import namedtuple
 from subprocess import run
 
 from .util import msg, msg_r, fmt, die, have_sudo
-from .color import orange
+from .color import blue, orange
 
 class LEDControl:
 
@@ -100,9 +100,12 @@ class LEDControl:
 					run(cmd.split(), check=True)
 					write_init_val(init_val)
 				else:
-					die(2,
-						f'\nYou do not have access to the {desc} file\n'
-						f'To allow access, run the following command:\n\n    {cmd}')
+					msg('\n{}\n{}\n{}'.format(
+						blue(f'You do not have access to the {desc} file'),
+						blue(f'To allow access, run the following command:\n\n    {cmd}'),
+						orange('[To prevent this message in the future, enable sudo without a password]')
+					))
+					sys.exit(1)
 
 		check_access(board.status,desc='status LED control')