app: Add -q argument for quiet mode

Add a west argument to decrease the verbosity.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>

src/west/app/main.py

@@ -97,6 +97,9 @@ def consume_more_args(rest):
         elif rest.startswith('v'):
             verbosity += 1
             consume_more_args(rest[1:])
+        elif rest.startswith('q'):
+            verbosity -= 1
+            consume_more_args(rest[1:])
         elif rest.startswith('z'):
             if not rest[1:]:
                 expecting_zephyr_base = True
@@ -121,8 +124,13 @@ def consume_more_args(rest):
         elif arg.startswith('-v'):
             verbosity += 1
             consume_more_args(arg[2:])
+        elif arg.startswith('-q'):
+            verbosity -= 1
+            consume_more_args(arg[2:])
         elif arg == '--verbose':
             verbosity += 1
+        elif arg == '--quiet':
+            verbosity -= 1
         elif arg.startswith('-z'):
             if arg == '-z':
                 expecting_zephyr_base = True
@@ -465,6 +473,10 @@ def make_parsers(self):
                             help='''Display verbose output. May be given
                             multiple times to increase verbosity.''')
 
+        parser.add_argument('-q', '--quiet', default=0, action='count',
+                            help='''Display less verbose output. May be given
+                            multiple times to decrease verbosity.''')
+
         parser.add_argument('-V', '--version', action='version',
                             version=f'West version: v{__version__}',
                             help='print the program version and exit')
@@ -594,8 +606,14 @@ def setup_west_logging(self, verbosity):
             logger.setLevel(logging.DEBUG)
         elif verbosity == 1:
             logger.setLevel(logging.INFO)
-        else:
+        elif verbosity == 0:
             logger.setLevel(logging.WARNING)
+        elif verbosity == -1:
+            logger.setLevel(logging.ERROR)
+        elif verbosity == -2:
+            logger.setLevel(logging.CRITICAL)
+        else:
+            logger.disabled = True
 
         logger.addHandler(LogHandler())
 
@@ -1070,8 +1088,10 @@ def mie_msg(mie):
     return ret
 
 def adjust_command_verbosity(command, args):
-    command.verbosity = min(command.verbosity + args.verbose,
-                            Verbosity.DBG_EXTREME)
+    command.verbosity = max(
+        min(command.verbosity + args.verbose - args.quiet, Verbosity.DBG_EXTREME),
+        Verbosity.QUIET
+    )
 
 def dump_traceback():
     # Save the current exception to a file and return its path.

src/west/commands.py

@@ -422,6 +422,9 @@ def inf(self, *args, colorize: bool = False, end: str = '\n'):
                          is undefined or true, and stdout is a terminal, then
                          the message is printed in green.
         '''
+        if Verbosity.INF > self.verbosity:
+            return
+
         if not self.color_ui:
             colorize = False
 
@@ -460,6 +463,9 @@ def wrn(self, *args, end: str = '\n'):
 
         :param args: sequence of arguments to print.'''
 
+        if Verbosity.WRN > self.verbosity:
+            return
+
         if self.color_ui:
             print(WRN_COLOR, end='', file=sys.stderr)
 
@@ -484,6 +490,9 @@ def err(self, *args, fatal: bool = False, end: str = '\n'):
                       "FATAL ERROR: "; otherwise, "ERROR: " is used.
         '''
 
+        if Verbosity.ERR > self.verbosity:
+            return
+
         if self.color_ui:
             print(ERR_COLOR, end='', file=sys.stderr)