upstream/mercurial-mirror Files · mercurial/node.py

state: write the version number in plain text on top of state files...

state: write the version number in plain text on top of state files We will soon be using CBOR format to write the data in state files. But we should not write the version number of the state files in CBOR format and we should rather write it in plain text because in future we can change the format of state files and we should be able to parse the version number of state file without requiring to understand a certain format. This will help us in making sure we have a good compatibility story with other versions of state files. Differential Revision: https://phab.mercurial-scm.org/D3579

Yuya Nishihara - - Load All Authors

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      # node.py - basic nodeid manipulation for mercurial

      #

      # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>

      #

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

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

      from __future__ import absolute_import

      import binascii

      # This ugly style has a noticeable effect in manifest parsing

      hex = binascii.hexlify

      # Adapt to Python 3 API changes. If this ends up showing up in

      # profiles, we can use this version only on Python 3, and forward

      # binascii.unhexlify like we used to on Python 2.

      def bin(s):

          try:

              return binascii.unhexlify(s)

          except binascii.Error as e:

              raise TypeError(e)

      nullrev = -1

      nullid = b"\0" * 20

      nullhex = hex(nullid)

      # Phony node value to stand-in for new files in some uses of

      # manifests.

      newnodeid = '!' * 20

      addednodeid = ('0' * 15) + 'added'

      modifiednodeid = ('0' * 12) + 'modified'

      wdirfilenodeids = {newnodeid, addednodeid, modifiednodeid}

      # pseudo identifiers for working directory

      # (they are experimental, so don't add too many dependencies on them)

      wdirrev = 0x7fffffff

      wdirid = b"\xff" * 20

      wdirhex = hex(wdirid)

      def short(node):

          return hex(node[:6])

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				# node.py - basic nodeid manipulation for mercurial
				#
				# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				from __future__ import absolute_import

				import binascii

				# This ugly style has a noticeable effect in manifest parsing
				hex = binascii.hexlify
				# Adapt to Python 3 API changes. If this ends up showing up in
				# profiles, we can use this version only on Python 3, and forward
				# binascii.unhexlify like we used to on Python 2.
				def bin(s):
				try:
				return binascii.unhexlify(s)
				except binascii.Error as e:
				raise TypeError(e)

				nullrev = -1
				nullid = b"\0" * 20
				nullhex = hex(nullid)

				# Phony node value to stand-in for new files in some uses of
				# manifests.
				newnodeid = '!' * 20
				addednodeid = ('0' * 15) + 'added'
				modifiednodeid = ('0' * 12) + 'modified'

				wdirfilenodeids = {newnodeid, addednodeid, modifiednodeid}

				# pseudo identifiers for working directory
				# (they are experimental, so don't add too many dependencies on them)
				wdirrev = 0x7fffffff
				wdirid = b"\xff" * 20
				wdirhex = hex(wdirid)

				def short(node):
				return hex(node[:6])