patman: Allow use outside of u-boot tree

To make it usable in git trees not providing a patch checker
implementation, add a command line option, allowing to suppress patch
check. While we are at it, sort debug options alphabetically.

Also, do not raise an exception if checkpatch.pl is not found - just
print an error message suggesting to use the new option, and return
nonzero status.

   . unit test passes:
    $ ./patman  -t
    <unittest.result.TestResult run=7 errors=0 failures=0>
   . successfully used patman in the autotest tree to generate a patch
     email (with --no-check option)
   . successfully used patman in the u-boot tree to generate a patch
     email
   . `patman --help' now shows command line options ordered
     alphabetically

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Acked-by: Doug Anderson <dianders@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

tools/patman/checkpatch.py

@@ -23,6 +23,7 @@ import command
 import gitutil
 import os
 import re
+import sys
 import terminal
 
 def FindCheckPatch():
@@ -47,8 +48,10 @@ def FindCheckPatch():
         if os.path.isfile(fname):
             return fname
         path = os.path.dirname(path)
-    print 'Could not find checkpatch.pl'
-    return None
+
+    print >> sys.stderr, ('Cannot find checkpatch.pl - please put it in your ' +
+                '~/bin directory or use --no-check')
+    sys.exit(1)
 
 def CheckPatch(fname, verbose=False):
     """Run checkpatch.pl on a file.
@@ -67,9 +70,6 @@ def CheckPatch(fname, verbose=False):
     error_count, warning_count, lines = 0, 0, 0
     problems = []
     chk = FindCheckPatch()
-    if not chk:
-        raise OSError, ('Cannot find checkpatch.pl - please put it in your ' +
-                '~/bin directory')
     item = {}
     stdout = command.Output(chk, '--no-tree', fname)
     #pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)

tools/patman/patman.py

@@ -50,6 +50,9 @@ parser.add_option('-i', '--ignore-errors', action='store_true',
        help='Send patches email even if patch errors are found')
 parser.add_option('-n', '--dry-run', action='store_true', dest='dry_run',
        default=False, help="Do a try run (create but don't email patches)")
+parser.add_option('-p', '--project', default=project.DetectProject(),
+                  help="Project name; affects default option values and "
+                  "aliases [default: %default]")
 parser.add_option('-s', '--start', dest='start', type='int',
        default=0, help='Commit to start creating patches from (0 = HEAD)')
 parser.add_option('-t', '--test', action='store_true', dest='test',
@@ -58,11 +61,11 @@ parser.add_option('-v', '--verbose', action='store_true', dest='verbose',
        default=False, help='Verbose output of errors and warnings')
 parser.add_option('--cc-cmd', dest='cc_cmd', type='string', action='store',
        default=None, help='Output cc list for patch file (used by git)')
+parser.add_option('--no-check', action='store_false', dest='check_patch',
+                  default=True,
+                  help="Don't check for patch compliance")
 parser.add_option('--no-tags', action='store_false', dest='process_tags',
                   default=True, help="Don't process subject tags as aliaes")
-parser.add_option('-p', '--project', default=project.DetectProject(),
-                  help="Project name; affects default option values and "
-                  "aliases [default: %default]")
 
 parser.usage = """patman [options]
 
@@ -146,7 +149,10 @@ else:
     series.DoChecks()
 
     # Check the patches, and run them through 'git am' just to be sure
-    ok = checkpatch.CheckPatches(options.verbose, args)
+    if options.check_patch:
+        ok = checkpatch.CheckPatches(options.verbose, args)
+    else:
+        ok = True
     if not gitutil.ApplyPatches(options.verbose, args,
             options.count + options.start):
         ok = False