This is an archive of the discontinued Mercurial Phabricator instance.

actions: introduce function to calculate downgrades
ClosedPublic

Authored by pulkit on Dec 16 2020, 5:14 AM.

Download Raw Diff

Details

Reviewers

marmoute
mharbison72

Group Reviewers

hg-reviewers

Commits

rHGc97d8e0406a6: actions: introduce function to calculate downgrades

Summary

An ugrade operation can also downgrade/remove some format variants. Before this
patch there was no clean way to find out all such variants which will be
removed. This patch adds a function for that.

It will be used in next patch.

Diff Detail

Repository

rHG Mercurial

Branch

default

Lint

No Linters Available

Unit

No Unit Test Coverage

Event Timeline

pulkit created this revision.Dec 16 2020, 5:14 AM

Herald added a reviewer: hg-reviewers. · View Herald TranscriptDec 16 2020, 5:14 AM

Herald added a subscriber: mercurial-patches. · View Herald Transcript

pulkit added a child revision: D9619: upgrade: introduce post upgrade and downgrade message for improvements.Dec 16 2020, 5:15 AM

marmoute mentioned this in D9616: upgrade: rename actions to upgrade_actions.Dec 22 2020, 3:45 AM

pulkit updated this revision to Diff 24547.Dec 30 2020, 5:31 AM

marmoute accepted this revision.Jan 7 2021, 7:23 PM

mharbison72 accepted this revision.Jan 12 2021, 6:45 PM

This revision is now accepted and ready to land.Jan 12 2021, 6:45 PM

pulkit added a commit: rHGc97d8e0406a6: actions: introduce function to calculate downgrades.Jan 12 2021, 6:53 PM

Closed by commit rHGc97d8e0406a6: actions: introduce function to calculate downgrades (authored by pulkit). · Explain Why

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

			Path	Packages
M			mercurial/upgrade_utils/actions.py (15 lines)

Diff	ID	Description	Created	Lint	Unit
Base		Base
Diff 1	24304		Dec 16 2020, 5:14 AM	★	★
Diff 2	24547		Dec 30 2020, 5:31 AM	★	★
Diff 3	24756	rHGc97d8e0406a6edc3a353dbb302824d05222f59b0	Dec 16 2020, 4:34 AM	★	★

Commit	Parents	Author	Summary	Date
92a3b880bb14	a85224050a45	Pulkit Goyal		Dec 16 2020, 4:34 AM

Status	Author	Revision
Closed	pulkit	D9775 upgrade: update only requirements if we can
Closed	pulkit	D9774 engine: add `if True` to prepare for next patch
Closed	pulkit	D9773 test: unquiet few tests to demonstrate changes in upcoming patches
Closed	pulkit	D9772 upgrade: mark sharesafe improvement as only touching requirements
Closed	pulkit	D9771 actions: calculate what all parts does the operation touches
Closed	pulkit	D9770 upgrade: don't create store backup if `--no-backup` is passed
Changes Planned	pulkit	D9677 upgrade: use copy+delete instead of rename while creating backup
Closed	pulkit	D9695 upgrade: don't perform anything if nothing to do
Closed	pulkit	D9676 upgrade: migrated -> upgraded in ui messages
Closed	pulkit	D9675 upgrade: remove unnecessary `is None` check
Closed	pulkit	D9674 engine: refactor code to replace stores in separate function
Closed	pulkit	D9694 upgrade: demonstrate that a no-op upgrade still performs everything
Closed	pulkit	D9693 downgrade: if a compression is removed, consider that too
Closed	pulkit	D9673 engine: prevent a function call for each store file
Closed	pulkit	D9672 engine: make hook point for extension a public function
Closed	pulkit	D9669 engine: prevent multiple checking of re-delta-multibase
Closed	pulkit	D9668 engine: pass upgrade operation inside `_perform_clone()`
Closed	pulkit	D9667 engine: pass upgrade operation inside _clonerevlogs()
Closed	pulkit	D9666 actions: store deltareuse mode of whole operation in UpgradeOperation
Closed	pulkit	D9665 engine: refactor how total dstsize is calculated
Closed	pulkit	D9619 upgrade: introduce post upgrade and downgrade message for improvements
Closed	pulkit	D9618 actions: introduce function to calculate downgrades
Closed	pulkit	D9617 debugupgraderepo: minor documentation fix
Closed	pulkit	D9616 upgrade: rename actions to upgrade_actions
Closed	pulkit	D9615 upgrade: move optimization addition to determineactions()
Closed	pulkit	D9614 upgrade: drop support for old style optimization names
Closed	pulkit	D9583 upgrade: add a missing space in status message
Closed	pulkit	D9664 actions: rename DEFICIENCY constant to FORMAT_VARIANT
Closed	pulkit	D9582 upgrade: rename finddeficiences() to find_format_upgrades()
Closed	pulkit	D9580 engine: unwrap a hard to understand for loop
Closed	pulkit	D9579 engine: refactor actual cloning code into separate function
Closed	pulkit	D9578 upgrade: move printing of unused optimizations to UpgradeOperation class
Closed	pulkit	D9577 upgrade: move `printrequirements()` to UpgradeOperation class
Closed	pulkit	D9576 upgrade: move `printoptimisations() to UpgradeOperation class
Closed	pulkit	D9575 upgrade: move `printupgradeactions()` to UpgradeOperation class
Closed	pulkit	D9574 upgrade: move `print_affected_revlogs()` to UpgradeOperation class

Diff 24547

mercurial/upgrade_utils/actions.py


	for fv in allformatvariant:			for fv in allformatvariant:
	if not fv.fromrepo(repo):			if not fv.fromrepo(repo):
	upgrades.append(fv)			upgrades.append(fv)

	return upgrades			return upgrades


				def find_format_downgrades(repo):
				"""returns a list of format downgrades which will be performed on the repo
				because of disabled config option for them"""

				downgrades = []

				for fv in allformatvariant:
				# format variant exist in repo but does not exist in new repository
				# config
				if fv.fromrepo(repo) and not fv.fromconfig(repo):
				downgrades.append(fv)

				return downgrades


	ALL_OPTIMISATIONS = []			ALL_OPTIMISATIONS = []


	def register_optimization(obj):			def register_optimization(obj):
	ALL_OPTIMISATIONS.append(obj)			ALL_OPTIMISATIONS.append(obj)
	return obj			return obj