style: Remove unsupported style.py commands

Remove the unsupported style.py subcommands (fixwhite, chkwhite),
which leaves the chkformat command as the only remaining
command. Since the script now only supports one command, remove the
sub-command support altogether.

Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Nathanael Premillieu <nathananel.premillieu@arm.com>

--HG--
extra : rebase_source : 548081a5f5358064bffd941b51dd895cff1e2df8

util/style.py

@@ -730,56 +730,23 @@ cmdtable = {
 }
 
 if __name__ == '__main__':
-    import getopt
+    import argparse
 
-    progname = sys.argv[0]
-    if len(sys.argv) < 2:
-        sys.exit('usage: %s <command> [<command args>]' % progname)
+    parser = argparse.ArgumentParser(
+        description="Check a file for style violations")
 
-    fixwhite_usage = '%s fixwhite [-t <tabsize> ] <path> [...] \n' % progname
-    chkformat_usage = '%s chkformat <path> [...] \n' % progname
-    chkwhite_usage = '%s chkwhite <path> [...] \n' % progname
+    parser.add_argument("--verbose", "-v", action="count",
+                        help="Produce verbose output")
 
-    command = sys.argv[1]
-    if command == 'fixwhite':
-        flags = 't:'
-        usage = fixwhite_usage
-    elif command == 'chkwhite':
-        flags = 'nv'
-        usage = chkwhite_usage
-    elif command == 'chkformat':
-        flags = 'nv'
-        usage = chkformat_usage
-    else:
-        sys.exit(fixwhite_usage + chkwhite_usage + chkformat_usage)
+    parser.add_argument("file", metavar="FILE", nargs="+",
+                        type=str,
+                        help="Source file to inspect")
 
-    opts, args = getopt.getopt(sys.argv[2:], flags)
+    args = parser.parse_args()
 
-    code = 1
-    verbose = 1
-    for opt,arg in opts:
-        if opt == '-n':
-            code = None
-        if opt == '-t':
-            tabsize = int(arg)
-        if opt == '-v':
-            verbose += 1
-
-    if command == 'fixwhite':
-        for filename in args:
-            fixwhite(filename, tabsize)
-    elif command == 'chkwhite':
-        for filename in args:
-            for line,num in checkwhite(filename):
-                print 'invalid whitespace: %s:%d' % (filename, num)
-                if verbose:
-                    print '>>%s<<' % line[:-1]
-    elif command == 'chkformat':
     stats = ValidationStats()
-        for filename in args:
-            validate(filename, stats=stats, verbose=verbose, exit_code=code)
+    for filename in args.file:
+        validate(filename, stats=stats, verbose=args.verbose, exit_code=1)
 
-        if verbose > 0:
+        if args.verbose > 0:
             stats.dump()
-    else:
-        sys.exit("command '%s' not found" % command)