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

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Date:	Tue, 3 Sep 2013 15:13:49 +0200
From:	Johannes Thumshirn <johannes.thumshirn@....de>
To:	Michal Marek <mmarek@...e.cz>
CC:	Johannes Thumshirn <johannes.thumshirn@....de>,
	Tim Bird <tbird20d@...il.com>, Sam Ravnborg <sam@...nborg.org>,
	<linux-kernel@...r.kernel.org>, <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH] kconfig: Make diffconfig work with Python 3

On Tue, Sep 03, 2013 at 03:08:09PM +0200, Michal Marek wrote:
> On 29.8.2013 17:10, Johannes Thumshirn wrote:
> > 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?
>
> I merged a nearly identical patch by Mike Pagano
> (http://www.spinics.net/lists/linux-kbuild/msg08503.html), seems like
> you guys had the same idea at the same time.
>
> Michal

lol, ok. At least it doesn't anoy me anymore :-D
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