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contrib: add showstack extension This allows getting a Python stack trace at any time on Unix by hitting Ctrl-\ (or Ctrl-T on BSDs). Useful for debugging mysterious hangs on the fly. Sample output: $ hg log -k nosuchmessage ^\ File "/home/mpm/hg/mercurial/revset.py", line 3089, in _iterfilter if cond(x): File "/home/mpm/hg/mercurial/util.py", line 415, in f cache[arg] = func(arg) File "/home/mpm/hg/mercurial/revset.py", line 1215, in matches for t in c.files() + [c.user(), c.description()]) File "/home/mpm/hg/mercurial/context.py", line 525, in files return self._changeset[3] File "/home/mpm/hg/mercurial/util.py", line 531, in __get__ result = self.func(obj) File "/home/mpm/hg/mercurial/context.py", line 498, in _changeset return self._repo.changelog.read(self.rev()) File "/home/mpm/hg/mercurial/changelog.py", line 338, in read text = self.revision(node) File "/home/mpm/hg/mercurial/revlog.py", line 1092, in revision bins = self._chunks(chain) File "/home/mpm/hg/mercurial/revlog.py", line 1013, in _chunks ladd(decompress(buffer(data, chunkstart - offset, chunklength))) File "/home/mpm/hg/mercurial/revlog.py", line 91, in decompress return _decompress(bin) ----

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      # py3kcompat.py - compatibility definitions for running hg in py3k

      #

      # Copyright 2010 Renato Cunha <renatoc@gmail.com>

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      import builtins

      from numbers import Number

      def bytesformatter(format, args):

          '''Custom implementation of a formatter for bytestrings.

          This function currently relies on the string formatter to do the

          formatting and always returns bytes objects.

          >>> bytesformatter(20, 10)

          0

          >>> bytesformatter('unicode %s, %s!', ('string', 'foo'))

          b'unicode string, foo!'

          >>> bytesformatter(b'test %s', 'me')

          b'test me'

          >>> bytesformatter('test %s', 'me')

          b'test me'

          >>> bytesformatter(b'test %s', b'me')

          b'test me'

          >>> bytesformatter('test %s', b'me')

          b'test me'

          >>> bytesformatter('test %d: %s', (1, b'result'))

          b'test 1: result'

          '''

          # The current implementation just converts from bytes to unicode, do

          # what's needed and then convert the results back to bytes.

          # Another alternative is to use the Python C API implementation.

          if isinstance(format, Number):

              # If the fixer erroneously passes a number remainder operation to

              # bytesformatter, we just return the correct operation

              return format % args

          if isinstance(format, bytes):

              format = format.decode('utf-8', 'surrogateescape')

          if isinstance(args, bytes):

              args = args.decode('utf-8', 'surrogateescape')

          if isinstance(args, tuple):

              newargs = []

              for arg in args:

                  if isinstance(arg, bytes):

                      arg = arg.decode('utf-8', 'surrogateescape')

                  newargs.append(arg)

              args = tuple(newargs)

          ret = format % args

          return ret.encode('utf-8', 'surrogateescape')

      builtins.bytesformatter = bytesformatter

      origord = builtins.ord

      def fakeord(char):

          if isinstance(char, int):

              return char

          return origord(char)

      builtins.ord = fakeord

      if __name__ == '__main__':

          import doctest

          doctest.testmod()

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				# py3kcompat.py - compatibility definitions for running hg in py3k
				#
				# Copyright 2010 Renato Cunha <renatoc@gmail.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				import builtins

				from numbers import Number

				def bytesformatter(format, args):
				'''Custom implementation of a formatter for bytestrings.

				This function currently relies on the string formatter to do the
				formatting and always returns bytes objects.

				>>> bytesformatter(20, 10)
				0
				>>> bytesformatter('unicode %s, %s!', ('string', 'foo'))
				b'unicode string, foo!'
				>>> bytesformatter(b'test %s', 'me')
				b'test me'
				>>> bytesformatter('test %s', 'me')
				b'test me'
				>>> bytesformatter(b'test %s', b'me')
				b'test me'
				>>> bytesformatter('test %s', b'me')
				b'test me'
				>>> bytesformatter('test %d: %s', (1, b'result'))
				b'test 1: result'
				'''
				# The current implementation just converts from bytes to unicode, do
				# what's needed and then convert the results back to bytes.
				# Another alternative is to use the Python C API implementation.
				if isinstance(format, Number):
				# If the fixer erroneously passes a number remainder operation to
				# bytesformatter, we just return the correct operation
				return format % args
				if isinstance(format, bytes):
				format = format.decode('utf-8', 'surrogateescape')
				if isinstance(args, bytes):
				args = args.decode('utf-8', 'surrogateescape')
				if isinstance(args, tuple):
				newargs = []
				for arg in args:
				if isinstance(arg, bytes):
				arg = arg.decode('utf-8', 'surrogateescape')
				newargs.append(arg)
				args = tuple(newargs)
				ret = format % args
				return ret.encode('utf-8', 'surrogateescape')
				builtins.bytesformatter = bytesformatter

				origord = builtins.ord
				def fakeord(char):
				if isinstance(char, int):
				return char
				return origord(char)
				builtins.ord = fakeord

				if __name__ == '__main__':
				import doctest
				doctest.testmod()