linux-kernel - Re: [PATCH] kconfig: Make diffconfig work with Python 3

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Date:	Thu, 29 Aug 2013 17:10:37 +0200
From:	Johannes Thumshirn <johannes.thumshirn@....de>
To:	Tim Bird <tbird20d@...il.com>
CC:	Johannes Thumshirn <johannes.thumshirn@....de>,
	Sam Ravnborg <sam@...nborg.org>,
	<linux-kernel@...r.kernel.org>, Michal Marek <mmarek@...e.cz>,
	<linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH] kconfig: Make diffconfig work with Python 3

On Wed, Aug 28, 2013 at 07:29:53AM -0700, Tim Bird wrote:
> On Fri, Aug 9, 2013 at 5:27 AM, Johannes Thumshirn
> <johannes.thumshirn@....de> wrote:
> > Adjust diffconfig to run cleanly on Python 3 (Tested with 3.3.2) and
> > Python 2 (2.7.5)
> >
> > Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....de>
> > ---
> >  scripts/diffconfig |   26 +++++++++++++-------------
> >  1 file changed, 13 insertions(+), 13 deletions(-)
> >
> > diff --git a/scripts/diffconfig b/scripts/diffconfig
> > index b91f3e3..dd0e75b 100755
> > --- a/scripts/diffconfig
> > +++ b/scripts/diffconfig
> > @@ -10,7 +10,7 @@
> >  import sys, os
> >
> >  def usage():
> > -    print """Usage: diffconfig [-h] [-m] [<config1> <config2>]
> > +    print ("""Usage: diffconfig [-h] [-m] [<config1> <config2>]
> >
> >  Diffconfig is a simple utility for comparing two .config files.
> >  Using standard diff to compare .config files often includes extraneous and
> > @@ -33,7 +33,7 @@ Example usage:
> >   EXT2_FS  y -> n
> >   LOG_BUF_SHIFT  14 -> 16
> >   PRINTK_TIME  n -> y
> > -"""
> > +""")
> >      sys.exit(0)
> >
> >  # returns a dictionary of name/value pairs for config items in the file
> > @@ -54,23 +54,23 @@ def print_config(op, config, value, new_value):
> >      if merge_style:
> >          if new_value:
> >              if new_value=="n":
> > -                print "# CONFIG_%s is not set" % config
> > +                print("# CONFIG_%s is not set" % config)
> >              else:
> > -                print "CONFIG_%s=%s" % (config, new_value)
> > +                print("CONFIG_%s=%s" % (config, new_value))
> >      else:
> >          if op=="-":
> > -            print "-%s %s" % (config, value)
> > +            print("-%s %s" % (config, value))
> >          elif op=="+":
> > -            print "+%s %s" % (config, new_value)
> > +            print("+%s %s" % (config, new_value))
> >          else:
> > -            print " %s %s -> %s" % (config, value, new_value)
> > +            print(" %s %s -> %s" % (config, value, new_value))
> >
> >  def main():
> >      global merge_style
> >
> >      # parse command line args
> >      if ("-h" in sys.argv or "--help" in sys.argv):
> > -       usage()
> > +        usage()
> >
> >      merge_style = 0
> >      if "-m" in sys.argv:
> > @@ -79,13 +79,13 @@ def main():
> >
> >      argc = len(sys.argv)
> >      if not (argc==1 or argc == 3):
> > -        print "Error: incorrect number of arguments or unrecognized option"
> > +        print("Error: incorrect number of arguments or unrecognized option")
> >          usage()
> >
> >      if argc == 1:
> >          # if no filenames given, assume .config and .config.old
> >          build_dir=""
> > -        if os.environ.has_key("KBUILD_OUTPUT"):
> > +        if 'KBUILD_OUTPUT' in os.environ:
> >              build_dir = os.environ["KBUILD_OUTPUT"]+"/"
> >
> >          configa_filename = build_dir + ".config.old"
> > @@ -94,8 +94,8 @@ def main():
> >          configa_filename = sys.argv[1]
> >          configb_filename = sys.argv[2]
> >
> > -    a = readconfig(file(configa_filename))
> > -    b = readconfig(file(configb_filename))
> > +    a = readconfig(open(configa_filename))
> > +    b = readconfig(open(configb_filename))
> >
> >      # print items in a but not b (accumulate, sort and print)
> >      old = []
> > @@ -121,7 +121,7 @@ def main():
> >
> >      # now print items in b but not in a
> >      # (items from b that were in a were removed above)
> > -    new = b.keys()
> > +    new = list(b.keys())
> >      new.sort()
> >      for config in new:
> >          print_config("+", config, None, b[config])
> > --
> > 1.7.9.5
>
> Sorry I missed this earlier.  My new e-mail is tim.bird@...ymobile.com, and
> my old am.sony.com address doesn't work any more.
>
> Thanks - this looks great.
>
> Acked-by Tim Bird <tim.bird@...ymobile.com>
>
>  -- Tim Bird
> Senior Software Engineer, Sony Mobile
> Architecture Group Chair, CE Workgroup, Linux Foundation

Is there any comments from the kbuild maintainers?
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