This is an archive of the discontinued Mercurial Phabricator instance.

Status	Author	Revision
Abandoned	pulkit	D2596 state: raise ProgrammingError if an invalid key is being accessed
Abandoned	pulkit	D2595 graft: start using the new state file class
Abandoned	pulkit	D2594 graft: move logic to read current graft state file in separate function
Abandoned	pulkit	D2593 state: add logic to parse the state file in old way if cbor fails
Needs Revision	pulkit	D2945 state: add a magicheader to each state file
Abandoned	pulkit	D2592 state: add registrar to register function to read old state files

Diff 7298

mercurial/state.py

	to serialize and deserialize data.			to serialize and deserialize data.
	"""			"""

	from __future__ import absolute_import			from __future__ import absolute_import

	from .thirdparty import cbor			from .thirdparty import cbor

	from . import (			from . import (
				error,
	util,			util,
	)			)

	class cmdstate(object):			class cmdstate(object):
	"""a wrapper class to store the state of commands like `rebase`, `graft`,			"""a wrapper class to store the state of commands like `rebase`, `graft`,
	`histedit`, `shelve` etc. Extensions can also use this to write state files.			`histedit`, `shelve` etc. Extensions can also use this to write state files.

	All the data for the state is stored in the form of key-value pairs in a			All the data for the state is stored in the form of key-value pairs in a

	def delete(self):			def delete(self):
	"""drop the state file if exists"""			"""drop the state file if exists"""
	util.unlinkpath(self._repo.vfs.join(self.fname), ignoremissing=True)			util.unlinkpath(self._repo.vfs.join(self.fname), ignoremissing=True)

	def exists(self):			def exists(self):
	"""check whether the state file exists or not"""			"""check whether the state file exists or not"""
	return self._repo.vfs.exists(self.fname)			return self._repo.vfs.exists(self.fname)

				oldstatefilefns = {}

				def readoldstatefile(path):
				"""decorator for registering function which can read the old format of state
				files.

				Using the state class defined above, all the state files will be using cbor
				to serialize data to write to disk. But a user can update hg while in
				conflict. This decorator registers function for reading old statefiles in
				such cases."""
				def dec(func):
				"""func here should accept the file object of the state file and
				should return a dict of data stored in state file."""
				if path in oldstatefilefns:
				martinvonzUnsubmitted Done I think we're used ProgrammingError elsewhere for this kind of thing martinvonz: I think we're used ProgrammingError elsewhere for this kind of thing
				raise error.ProgrammingError("duplicate entry for reading old %s"
				" found" % path)
				oldstatefilefns[path] = func
				return func
				return dec

Diff	ID	Description	Created	Lint	Unit
Base		Base
Diff 1	6443		Mar 3 2018, 2:19 PM	★	★
Diff 2	7298		Mar 26 2018, 1:09 PM	★	★

This is an archive of the discontinued Mercurial Phabricator instance.

state: add registrar to register function to read old state filesAbandonedPublic

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Diff 7298

mercurial/state.py

state: add registrar to register function to read old state files
AbandonedPublic

Revision Contents
Changeset List