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

revlog.revision: avoid opening the datafile without need....

revlog.revision: avoid opening the datafile without need. If there's no inline data, revlog.revision opens the data file every time it's called. This is useful if we're going to call chunk many times, but, if we're going to call it only once, it's better to let chunk open the file - if we're lucky, all the data we're going to need is already cached and we won't need to even look at the file.

Vadim Gelfer - - Load All Authors

File last commit:

r2859:345bac2b default


                r6144:08e0825b

default

Download file

             httprangereader.py
        
                    28 lines
            
             | 862 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / mercurial / httprangereader.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      # httprangereader.py - just what it says

      #

      # 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, incorporated herein by reference.

      import byterange, urllib2

      class httprangereader(object):

          def __init__(self, url):

              self.url = url

              self.pos = 0

          def seek(self, pos):

              self.pos = pos

          def read(self, bytes=None):

              opener = urllib2.build_opener(byterange.HTTPRangeHandler())

              urllib2.install_opener(opener)

              req = urllib2.Request(self.url)

              end = ''

              if bytes:

                  end = self.pos + bytes - 1

              req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))

              f = urllib2.urlopen(req)

              data = f.read()

              if bytes:

                  data = data[:bytes]

              return data

	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

				# httprangereader.py - just what it says
				#
				# 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, incorporated herein by reference.

				import byterange, urllib2

				class httprangereader(object):
				def __init__(self, url):
				self.url = url
				self.pos = 0
				def seek(self, pos):
				self.pos = pos
				def read(self, bytes=None):
				opener = urllib2.build_opener(byterange.HTTPRangeHandler())
				urllib2.install_opener(opener)
				req = urllib2.Request(self.url)
				end = ''
				if bytes:
				end = self.pos + bytes - 1
				req.add_header('Range', 'bytes=%d-%s' % (self.pos, end))
				f = urllib2.urlopen(req)
				data = f.read()
				if bytes:
				data = data[:bytes]
				return data