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

strip: add faster revlog strip computation...

strip: add faster revlog strip computation The previous revlog strip computation would walk every rev in the revlog, from the bottom to the top. Since we're usually stripping only the top few revs of the revlog, this was needlessly expensive on large repos. The new algorithm walks the exact number of revs that will be stripped, thus making the operation not dependent on the number of revs in the repo. This makes amend on a large repo go from 8.7 seconds to 6 seconds.

Matt Mackall - - Load All Authors

File last commit:

r10263:25e57239 stable


                r20074:5fc2ae1c

default

Download file

             node.py
        
                    18 lines
            
             | 449 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / mercurial / node.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      # 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.

      import binascii

      nullrev = -1

      nullid = "\0" * 20

      # This ugly style has a noticeable effect in manifest parsing

      hex = binascii.hexlify

      bin = binascii.unhexlify

      def short(node):

          return hex(node[:6])

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				# 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.

				import binascii

				nullrev = -1
				nullid = "\0" * 20

				# This ugly style has a noticeable effect in manifest parsing
				hex = binascii.hexlify
				bin = binascii.unhexlify

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