|
|
# upgrade.py - functions for in place upgrade of Mercurial repository
|
|
|
#
|
|
|
# Copyright (c) 2016-present, Gregory Szorc
|
|
|
#
|
|
|
# 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
|
|
|
|
|
|
from .i18n import _
|
|
|
from . import (
|
|
|
error,
|
|
|
hg,
|
|
|
localrepo,
|
|
|
lock as lockmod,
|
|
|
pycompat,
|
|
|
requirements as requirementsmod,
|
|
|
scmutil,
|
|
|
)
|
|
|
|
|
|
from .upgrade_utils import (
|
|
|
actions as upgrade_actions,
|
|
|
engine as upgrade_engine,
|
|
|
)
|
|
|
|
|
|
from .utils import (
|
|
|
stringutil,
|
|
|
)
|
|
|
|
|
|
allformatvariant = upgrade_actions.allformatvariant
|
|
|
|
|
|
|
|
|
def upgraderepo(
|
|
|
ui,
|
|
|
repo,
|
|
|
run=False,
|
|
|
optimize=None,
|
|
|
backup=True,
|
|
|
manifest=None,
|
|
|
changelog=None,
|
|
|
filelogs=None,
|
|
|
):
|
|
|
"""Upgrade a repository in place."""
|
|
|
if optimize is None:
|
|
|
optimize = {}
|
|
|
repo = repo.unfiltered()
|
|
|
|
|
|
revlogs = set(upgrade_engine.UPGRADE_ALL_REVLOGS)
|
|
|
specentries = (
|
|
|
(upgrade_engine.UPGRADE_CHANGELOG, changelog),
|
|
|
(upgrade_engine.UPGRADE_MANIFEST, manifest),
|
|
|
(upgrade_engine.UPGRADE_FILELOGS, filelogs),
|
|
|
)
|
|
|
specified = [(y, x) for (y, x) in specentries if x is not None]
|
|
|
if specified:
|
|
|
# we have some limitation on revlogs to be recloned
|
|
|
if any(x for y, x in specified):
|
|
|
revlogs = set()
|
|
|
for upgrade, enabled in specified:
|
|
|
if enabled:
|
|
|
revlogs.add(upgrade)
|
|
|
else:
|
|
|
# none are enabled
|
|
|
for upgrade, __ in specified:
|
|
|
revlogs.discard(upgrade)
|
|
|
|
|
|
# Ensure the repository can be upgraded.
|
|
|
upgrade_actions.check_source_requirements(repo)
|
|
|
|
|
|
default_options = localrepo.defaultcreateopts(repo.ui)
|
|
|
newreqs = localrepo.newreporequirements(repo.ui, default_options)
|
|
|
newreqs.update(upgrade_actions.preservedrequirements(repo))
|
|
|
|
|
|
upgrade_actions.check_requirements_changes(repo, newreqs)
|
|
|
|
|
|
# Find and validate all improvements that can be made.
|
|
|
alloptimizations = upgrade_actions.findoptimizations(repo)
|
|
|
|
|
|
# Apply and Validate arguments.
|
|
|
optimizations = []
|
|
|
for o in alloptimizations:
|
|
|
if o.name in optimize:
|
|
|
optimizations.append(o)
|
|
|
optimize.discard(o.name)
|
|
|
|
|
|
if optimize: # anything left is unknown
|
|
|
raise error.Abort(
|
|
|
_(b'unknown optimization action requested: %s')
|
|
|
% b', '.join(sorted(optimize)),
|
|
|
hint=_(b'run without arguments to see valid optimizations'),
|
|
|
)
|
|
|
|
|
|
format_upgrades = upgrade_actions.find_format_upgrades(repo)
|
|
|
up_actions = upgrade_actions.determine_upgrade_actions(
|
|
|
repo, format_upgrades, optimizations, repo.requirements, newreqs
|
|
|
)
|
|
|
removed_actions = upgrade_actions.find_format_downgrades(repo)
|
|
|
|
|
|
removedreqs = repo.requirements - newreqs
|
|
|
addedreqs = newreqs - repo.requirements
|
|
|
|
|
|
if revlogs != upgrade_engine.UPGRADE_ALL_REVLOGS:
|
|
|
incompatible = upgrade_actions.RECLONES_REQUIREMENTS & (
|
|
|
removedreqs | addedreqs
|
|
|
)
|
|
|
if incompatible:
|
|
|
msg = _(
|
|
|
b'ignoring revlogs selection flags, format requirements '
|
|
|
b'change: %s\n'
|
|
|
)
|
|
|
ui.warn(msg % b', '.join(sorted(incompatible)))
|
|
|
revlogs = upgrade_engine.UPGRADE_ALL_REVLOGS
|
|
|
|
|
|
upgrade_op = upgrade_actions.UpgradeOperation(
|
|
|
ui,
|
|
|
newreqs,
|
|
|
repo.requirements,
|
|
|
up_actions,
|
|
|
removed_actions,
|
|
|
revlogs,
|
|
|
)
|
|
|
|
|
|
if not run:
|
|
|
fromconfig = []
|
|
|
onlydefault = []
|
|
|
|
|
|
for d in format_upgrades:
|
|
|
if d.fromconfig(repo):
|
|
|
fromconfig.append(d)
|
|
|
elif d.default:
|
|
|
onlydefault.append(d)
|
|
|
|
|
|
if fromconfig or onlydefault:
|
|
|
|
|
|
if fromconfig:
|
|
|
ui.status(
|
|
|
_(
|
|
|
b'repository lacks features recommended by '
|
|
|
b'current config options:\n\n'
|
|
|
)
|
|
|
)
|
|
|
for i in fromconfig:
|
|
|
ui.status(b'%s\n %s\n\n' % (i.name, i.description))
|
|
|
|
|
|
if onlydefault:
|
|
|
ui.status(
|
|
|
_(
|
|
|
b'repository lacks features used by the default '
|
|
|
b'config options:\n\n'
|
|
|
)
|
|
|
)
|
|
|
for i in onlydefault:
|
|
|
ui.status(b'%s\n %s\n\n' % (i.name, i.description))
|
|
|
|
|
|
ui.status(b'\n')
|
|
|
else:
|
|
|
ui.status(_(b'(no format upgrades found in existing repository)\n'))
|
|
|
|
|
|
ui.status(
|
|
|
_(
|
|
|
b'performing an upgrade with "--run" will make the following '
|
|
|
b'changes:\n\n'
|
|
|
)
|
|
|
)
|
|
|
|
|
|
upgrade_op.print_requirements()
|
|
|
upgrade_op.print_optimisations()
|
|
|
upgrade_op.print_upgrade_actions()
|
|
|
upgrade_op.print_affected_revlogs()
|
|
|
|
|
|
if upgrade_op.unused_optimizations:
|
|
|
ui.status(
|
|
|
_(
|
|
|
b'additional optimizations are available by specifying '
|
|
|
b'"--optimize <name>":\n\n'
|
|
|
)
|
|
|
)
|
|
|
upgrade_op.print_unused_optimizations()
|
|
|
return
|
|
|
|
|
|
if not (upgrade_op.upgrade_actions or upgrade_op.removed_actions):
|
|
|
ui.status(_(b'nothing to do\n'))
|
|
|
return
|
|
|
# Else we're in the run=true case.
|
|
|
ui.write(_(b'upgrade will perform the following actions:\n\n'))
|
|
|
upgrade_op.print_requirements()
|
|
|
upgrade_op.print_optimisations()
|
|
|
upgrade_op.print_upgrade_actions()
|
|
|
upgrade_op.print_affected_revlogs()
|
|
|
|
|
|
ui.status(_(b'beginning upgrade...\n'))
|
|
|
with repo.wlock(), repo.lock():
|
|
|
ui.status(_(b'repository locked and read-only\n'))
|
|
|
# Our strategy for upgrading the repository is to create a new,
|
|
|
# temporary repository, write data to it, then do a swap of the
|
|
|
# data. There are less heavyweight ways to do this, but it is easier
|
|
|
# to create a new repo object than to instantiate all the components
|
|
|
# (like the store) separately.
|
|
|
tmppath = pycompat.mkdtemp(prefix=b'upgrade.', dir=repo.path)
|
|
|
backuppath = None
|
|
|
try:
|
|
|
ui.status(
|
|
|
_(
|
|
|
b'creating temporary repository to stage upgraded '
|
|
|
b'data: %s\n'
|
|
|
)
|
|
|
% tmppath
|
|
|
)
|
|
|
|
|
|
# clone ui without using ui.copy because repo.ui is protected
|
|
|
repoui = repo.ui.__class__(repo.ui)
|
|
|
dstrepo = hg.repository(repoui, path=tmppath, create=True)
|
|
|
|
|
|
with dstrepo.wlock(), dstrepo.lock():
|
|
|
backuppath = upgrade_engine.upgrade(
|
|
|
ui, repo, dstrepo, upgrade_op
|
|
|
)
|
|
|
if not backup:
|
|
|
ui.status(
|
|
|
_(b'removing old repository content %s\n') % backuppath
|
|
|
)
|
|
|
repo.vfs.rmtree(backuppath, forcibly=True)
|
|
|
backuppath = None
|
|
|
|
|
|
finally:
|
|
|
ui.status(_(b'removing temporary repository %s\n') % tmppath)
|
|
|
repo.vfs.rmtree(tmppath, forcibly=True)
|
|
|
|
|
|
if backuppath and not ui.quiet:
|
|
|
ui.warn(
|
|
|
_(b'copy of old repository backed up at %s\n') % backuppath
|
|
|
)
|
|
|
ui.warn(
|
|
|
_(
|
|
|
b'the old repository will not be deleted; remove '
|
|
|
b'it to free up disk space once the upgraded '
|
|
|
b'repository is verified\n'
|
|
|
)
|
|
|
)
|
|
|
|
|
|
upgrade_op.print_post_op_messages()
|
|
|
|
|
|
|
|
|
def upgrade_share_to_safe(
|
|
|
ui,
|
|
|
hgvfs,
|
|
|
storevfs,
|
|
|
current_requirements,
|
|
|
mismatch_config,
|
|
|
mismatch_warn,
|
|
|
):
|
|
|
"""Upgrades a share to use share-safe mechanism"""
|
|
|
wlock = None
|
|
|
store_requirements = localrepo._readrequires(storevfs, False)
|
|
|
original_crequirements = current_requirements.copy()
|
|
|
# after upgrade, store requires will be shared, so lets find
|
|
|
# the requirements which are not present in store and
|
|
|
# write them to share's .hg/requires
|
|
|
diffrequires = current_requirements - store_requirements
|
|
|
# add share-safe requirement as it will mark the share as share-safe
|
|
|
diffrequires.add(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
current_requirements.add(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
# in `allow` case, we don't try to upgrade, we just respect the source
|
|
|
# state, update requirements and continue
|
|
|
if mismatch_config == b'allow':
|
|
|
return
|
|
|
try:
|
|
|
wlock = lockmod.trylock(ui, hgvfs, b'wlock', 0, 0)
|
|
|
# some process might change the requirement in between, re-read
|
|
|
# and update current_requirements
|
|
|
locked_requirements = localrepo._readrequires(hgvfs, True)
|
|
|
if locked_requirements != original_crequirements:
|
|
|
removed = current_requirements - locked_requirements
|
|
|
# update current_requirements in place because it's passed
|
|
|
# as reference
|
|
|
current_requirements -= removed
|
|
|
current_requirements |= locked_requirements
|
|
|
diffrequires = current_requirements - store_requirements
|
|
|
# add share-safe requirement as it will mark the share as share-safe
|
|
|
diffrequires.add(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
current_requirements.add(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
scmutil.writerequires(hgvfs, diffrequires)
|
|
|
ui.warn(_(b'repository upgraded to use share-safe mode\n'))
|
|
|
except error.LockError as e:
|
|
|
hint = _(
|
|
|
"see `hg help config.format.use-share-safe` for more information"
|
|
|
)
|
|
|
if mismatch_config == b'upgrade-abort':
|
|
|
raise error.Abort(
|
|
|
_(b'failed to upgrade share, got error: %s')
|
|
|
% stringutil.forcebytestr(e.strerror),
|
|
|
hint=hint,
|
|
|
)
|
|
|
elif mismatch_warn:
|
|
|
ui.warn(
|
|
|
_(b'failed to upgrade share, got error: %s\n')
|
|
|
% stringutil.forcebytestr(e.strerror),
|
|
|
hint=hint,
|
|
|
)
|
|
|
finally:
|
|
|
if wlock:
|
|
|
wlock.release()
|
|
|
|
|
|
|
|
|
def downgrade_share_to_non_safe(
|
|
|
ui,
|
|
|
hgvfs,
|
|
|
sharedvfs,
|
|
|
current_requirements,
|
|
|
mismatch_config,
|
|
|
mismatch_warn,
|
|
|
):
|
|
|
"""Downgrades a share which use share-safe to not use it"""
|
|
|
wlock = None
|
|
|
source_requirements = localrepo._readrequires(sharedvfs, True)
|
|
|
original_crequirements = current_requirements.copy()
|
|
|
# we cannot be 100% sure on which requirements were present in store when
|
|
|
# the source supported share-safe. However, we do know that working
|
|
|
# directory requirements were not there. Hence we remove them
|
|
|
source_requirements -= requirementsmod.WORKING_DIR_REQUIREMENTS
|
|
|
current_requirements |= source_requirements
|
|
|
current_requirements.remove(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
if mismatch_config == b'allow':
|
|
|
return
|
|
|
|
|
|
try:
|
|
|
wlock = lockmod.trylock(ui, hgvfs, b'wlock', 0, 0)
|
|
|
# some process might change the requirement in between, re-read
|
|
|
# and update current_requirements
|
|
|
locked_requirements = localrepo._readrequires(hgvfs, True)
|
|
|
if locked_requirements != original_crequirements:
|
|
|
removed = current_requirements - locked_requirements
|
|
|
# update current_requirements in place because it's passed
|
|
|
# as reference
|
|
|
current_requirements -= removed
|
|
|
current_requirements |= locked_requirements
|
|
|
current_requirements |= source_requirements
|
|
|
current_requirements -= set(requirementsmod.SHARESAFE_REQUIREMENT)
|
|
|
scmutil.writerequires(hgvfs, current_requirements)
|
|
|
ui.warn(_(b'repository downgraded to not use share-safe mode\n'))
|
|
|
except error.LockError as e:
|
|
|
hint = _(
|
|
|
"see `hg help config.format.use-share-safe` for more information"
|
|
|
)
|
|
|
# If upgrade-abort is set, abort when upgrade fails, else let the
|
|
|
# process continue as `upgrade-allow` is set
|
|
|
if mismatch_config == b'downgrade-abort':
|
|
|
raise error.Abort(
|
|
|
_(b'failed to downgrade share, got error: %s')
|
|
|
% stringutil.forcebytestr(e.strerror),
|
|
|
hint=hint,
|
|
|
)
|
|
|
elif mismatch_warn:
|
|
|
ui.warn(
|
|
|
_(b'failed to downgrade share, got error: %s\n')
|
|
|
% stringutil.forcebytestr(e.strerror),
|
|
|
hint=hint,
|
|
|
)
|
|
|
finally:
|
|
|
if wlock:
|
|
|
wlock.release()
|
|
|
|
