upstream/mercurial-mirror Files · tests/md5sum.py

patch: support diff data loss detection and upgrade...

patch: support diff data loss detection and upgrade In worst case, generating diff in upgrade mode can be two times more expensive than generating it in git mode directly: we may have to regenerate the whole diff again whenever a git feature is detected. Also, the first diff attempt is completely buffered instead of being streamed. That said, even without having profiled it yet, I am convinced we can fast-path the upgrade mode if necessary were it to be used in regular diff commands, and not only in mq where avoiding data loss is worth the price.

Patrick Mezard - - Load All Authors

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             md5sum.py
        
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      #!/usr/bin/env python

      #

      # Based on python's Tools/scripts/md5sum.py

      #

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

      # of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is

      # GPL-compatible.

      import sys, os

      try:

          from hashlib import md5

      except ImportError:

          from md5 import md5

      try:

          import msvcrt

          msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)

          msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)

      except ImportError:

          pass

      for filename in sys.argv[1:]:

          try:

              fp = open(filename, 'rb')

          except IOError, msg:

              sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))

              sys.exit(1)

          m = md5()

          try:

              while 1:

                  data = fp.read(8192)

                  if not data:

                      break

                  m.update(data)

          except IOError, msg:

              sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))

              sys.exit(1)

          sys.stdout.write('%s  %s\n' % (m.hexdigest(), filename))

      sys.exit(0)

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				#!/usr/bin/env python
				#
				# Based on python's Tools/scripts/md5sum.py
				#
				# This software may be used and distributed according to the terms
				# of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is
				# GPL-compatible.

				import sys, os

				try:
				from hashlib import md5
				except ImportError:
				from md5 import md5

				try:
				import msvcrt
				msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
				msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
				except ImportError:
				pass

				for filename in sys.argv[1:]:
				try:
				fp = open(filename, 'rb')
				except IOError, msg:
				sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
				sys.exit(1)

				m = md5()
				try:
				while 1:
				data = fp.read(8192)
				if not data:
				break
				m.update(data)
				except IOError, msg:
				sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
				sys.exit(1)
				sys.stdout.write('%s %s\n' % (m.hexdigest(), filename))

				sys.exit(0)