upstream/mercurial-mirror Files · hgext/infinitepush/common.py

phase: add an archived phase...

phase: add an archived phase This phase allows for hidden changesets in the "user space". It differs from the "internal" phase which is intended for internal by-product only. There have been discussions at the 4.8 sprint to use such phase to speedup cleanup after history rewriting operation. Shipping it in the same release as the 'internal-phase' groups the associated `requires` entry. The important bit is to have support for this phase in the earliest version of mercurial possible. Adding the UI to manipulate this new phase later seems fine. The current plan for archived usage and user interface are as follow. On a repository with internal-phase on and evolution off: * history rewriting command set rewritten changeset in the archived phase. (This mean updating the cleanupnodes method). * keep `hg unbundle .hg/strip-backup/X.hg` as a way to restore changeset for now (backup bundle need to contains phase data) * [maybe] add a `hg strip --soft` advance flag (a light way to expose the feature without getting in the way of a better UI) Mercurial 4.8 freeze is too close to get the above in by then. We don't introduce a new repository `requirement` as we reuse the one introduced with the 'archived' phase during the 4.8 cycle.

Mark Thomas - - Load All Authors

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             common.py
        
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      # Copyright 2017 Facebook, Inc.

      #

      # 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 os

      from mercurial.node import hex

      from mercurial import (

          error,

          extensions,

          pycompat,

      )

      def isremotebooksenabled(ui):

          return ('remotenames' in extensions._extensions and

                  ui.configbool('remotenames', 'bookmarks'))

      def downloadbundle(repo, unknownbinhead):

          index = repo.bundlestore.index

          store = repo.bundlestore.store

          bundleid = index.getbundle(hex(unknownbinhead))

          if bundleid is None:

              raise error.Abort('%s head is not known' % hex(unknownbinhead))

          bundleraw = store.read(bundleid)

          return _makebundlefromraw(bundleraw)

      def _makebundlefromraw(data):

          fp = None

          fd, bundlefile = pycompat.mkstemp()

          try:  # guards bundlefile

              try:  # guards fp

                  fp = os.fdopen(fd, r'wb')

                  fp.write(data)

              finally:

                  fp.close()

          except Exception:

              try:

                  os.unlink(bundlefile)

              except Exception:

                  # we would rather see the original exception

                  pass

              raise

          return bundlefile

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				# Copyright 2017 Facebook, Inc.
				#
				# 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 os

				from mercurial.node import hex

				from mercurial import (
				error,
				extensions,
				pycompat,
				)

				def isremotebooksenabled(ui):
				return ('remotenames' in extensions._extensions and
				ui.configbool('remotenames', 'bookmarks'))

				def downloadbundle(repo, unknownbinhead):
				index = repo.bundlestore.index
				store = repo.bundlestore.store
				bundleid = index.getbundle(hex(unknownbinhead))
				if bundleid is None:
				raise error.Abort('%s head is not known' % hex(unknownbinhead))
				bundleraw = store.read(bundleid)
				return _makebundlefromraw(bundleraw)

				def _makebundlefromraw(data):
				fp = None
				fd, bundlefile = pycompat.mkstemp()
				try: # guards bundlefile
				try: # guards fp
				fp = os.fdopen(fd, r'wb')
				fp.write(data)
				finally:
				fp.close()
				except Exception:
				try:
				os.unlink(bundlefile)
				except Exception:
				# we would rather see the original exception
				pass
				raise

				return bundlefile