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

Create an atomic opener that does not automatically rename on close...

Create an atomic opener that does not automatically rename on close The revlog.checkinlinesize() uses an atomic opener to replace the index file after converting it from inline to traditional .i and .d files. If this operation is interrupted, the atomic file class can overwrite a valid file with a partially written one. This patch introduces an atomic opener that does not automatically replace the destination file with the tempfile. This way an interrupted checkinlinesize() call turns into a noop.

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      # statichttprepo.py - simple http repository class for mercurial

      #

      # This provides read-only repo access to repositories exported via static http

      #

      # Copyright 2005 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.

      from demandload import demandload

      demandload(globals(), "changelog filelog httprangereader")

      demandload(globals(), "localrepo manifest os urllib urllib2")

      class rangereader(httprangereader.httprangereader):

          def read(self, size=None):

              try:

                  return httprangereader.httprangereader.read(self, size)

              except urllib2.HTTPError, inst:

                  raise IOError(None, inst)

              except urllib2.URLError, inst:

                  raise IOError(None, inst.reason[1])

      def opener(base):

          """return a function that opens files over http"""

          p = base

          def o(path, mode="r"):

              f = os.path.join(p, urllib.quote(path))

              return rangereader(f)

          return o

      class statichttprepository(localrepo.localrepository):

          def __init__(self, ui, path):

              self.path = (path + "/.hg")

              self.ui = ui

              self.revlogversion = 0

              self.opener = opener(self.path)

              self.manifest = manifest.manifest(self.opener)

              self.changelog = changelog.changelog(self.opener)

              self.tagscache = None

              self.nodetagscache = None

              self.encodepats = None

              self.decodepats = None

          def dev(self):

              return -1

          def local(self):

              return False

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				# statichttprepo.py - simple http repository class for mercurial
				#
				# This provides read-only repo access to repositories exported via static http
				#
				# Copyright 2005 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.

				from demandload import demandload
				demandload(globals(), "changelog filelog httprangereader")
				demandload(globals(), "localrepo manifest os urllib urllib2")

				class rangereader(httprangereader.httprangereader):
				def read(self, size=None):
				try:
				return httprangereader.httprangereader.read(self, size)
				except urllib2.HTTPError, inst:
				raise IOError(None, inst)
				except urllib2.URLError, inst:
				raise IOError(None, inst.reason[1])

				def opener(base):
				"""return a function that opens files over http"""
				p = base
				def o(path, mode="r"):
				f = os.path.join(p, urllib.quote(path))
				return rangereader(f)
				return o

				class statichttprepository(localrepo.localrepository):
				def __init__(self, ui, path):
				self.path = (path + "/.hg")
				self.ui = ui
				self.revlogversion = 0
				self.opener = opener(self.path)
				self.manifest = manifest.manifest(self.opener)
				self.changelog = changelog.changelog(self.opener)
				self.tagscache = None
				self.nodetagscache = None
				self.encodepats = None
				self.decodepats = None

				def dev(self):
				return -1

				def local(self):
				return False