upgrade: update only requirements if we can
Upgrade operations which involves just upgrading requirements earlier used to go
through whole revlog cloning business.
Now we just upgrade the requirement and skip the cloning part.
Differential Revision: https://phab.mercurial-scm.org/D9775
setup
$ cat >> $HGRCPATH <<EOF
> [extensions]
> share =
> [format]
> use-share-safe = True
> [storage]
> revlog.persistent-nodemap.slow-path=allow
> EOF
prepare source repo
$ hg init source
$ cd source
$ cat .hg/requires
share-safe
$ cat .hg/store/requires
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
share-safe
sparserevlog
store
$ echo a > a
$ hg ci -Aqm "added a"
$ echo b > b
$ hg ci -Aqm "added b"
$ HGEDITOR=cat hg config --shared
abort: repository is not shared; can't use --shared
[10]
$ cd ..
Create a shared repo and check the requirements are shared and read correctly
$ hg share source shared1
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd shared1
$ cat .hg/requires
share-safe
shared
$ hg debugrequirements -R ../source
dotencode
fncache
generaldelta
revlogv1
share-safe
sparserevlog
store
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
share-safe
shared
sparserevlog
store
$ echo c > c
$ hg ci -Aqm "added c"
Check that config of the source repository is also loaded
$ hg showconfig ui.curses
[1]
$ echo "[ui]" >> ../source/.hg/hgrc
$ echo "curses=true" >> ../source/.hg/hgrc
$ hg showconfig ui.curses
true
Test that extensions of source repository are also loaded
$ hg debugextensions
share
$ hg extdiff -p echo
hg: unknown command 'extdiff'
'extdiff' is provided by the following extension:
extdiff command to allow external programs to compare revisions
(use 'hg help extensions' for information on enabling extensions)
[10]
$ echo "[extensions]" >> ../source/.hg/hgrc
$ echo "extdiff=" >> ../source/.hg/hgrc
$ hg debugextensions -R ../source
extdiff
share
$ hg extdiff -R ../source -p echo
BROKEN: the command below will not work if config of shared source is not loaded
on dispatch but debugextensions says that extension
is loaded
$ hg debugextensions
extdiff
share
$ hg extdiff -p echo
However, local .hg/hgrc should override the config set by share source
$ echo "[ui]" >> .hg/hgrc
$ echo "curses=false" >> .hg/hgrc
$ hg showconfig ui.curses
false
$ HGEDITOR=cat hg config --shared
[ui]
curses=true
[extensions]
extdiff=
$ HGEDITOR=cat hg config --local
[ui]
curses=false
Testing that hooks set in source repository also runs in shared repo
$ cd ../source
$ cat <<EOF >> .hg/hgrc
> [extensions]
> hooklib=
> [hooks]
> pretxnchangegroup.reject_merge_commits = \
> python:hgext.hooklib.reject_merge_commits.hook
> EOF
$ cd ..
$ hg clone source cloned
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd cloned
$ hg up 0
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ echo bar > bar
$ hg ci -Aqm "added bar"
$ hg merge
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m "merge commit"
$ hg push ../source
pushing to ../source
searching for changes
adding changesets
adding manifests
adding file changes
error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
transaction abort!
rollback completed
abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
[255]
$ hg push ../shared1
pushing to ../shared1
searching for changes
adding changesets
adding manifests
adding file changes
error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
transaction abort!
rollback completed
abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
[255]
Test that if share source config is untrusted, we dont read it
$ cd ../shared1
$ cat << EOF > $TESTTMP/untrusted.py
> from mercurial import scmutil, util
> def uisetup(ui):
> class untrustedui(ui.__class__):
> def _trusted(self, fp, f):
> if util.normpath(fp.name).endswith(b'source/.hg/hgrc'):
> return False
> return super(untrustedui, self)._trusted(fp, f)
> ui.__class__ = untrustedui
> EOF
$ hg showconfig hooks
hooks.pretxnchangegroup.reject_merge_commits=python:hgext.hooklib.reject_merge_commits.hook
$ hg showconfig hooks --config extensions.untrusted=$TESTTMP/untrusted.py
[1]
Update the source repository format and check that shared repo works
$ cd ../source
Disable zstd related tests because its not present on pure version
#if zstd
$ echo "[format]" >> .hg/hgrc
$ echo "revlog-compression=zstd" >> .hg/hgrc
$ hg debugupgraderepo --run -q
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store
added: revlog-compression-zstd
processed revlogs:
- all-filelogs
- changelog
- manifest
$ hg log -r .
changeset: 1:5f6d8a4bf34a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: added b
#endif
$ echo "[format]" >> .hg/hgrc
$ echo "use-persistent-nodemap=True" >> .hg/hgrc
$ hg debugupgraderepo --run -q -R ../shared1
abort: cannot upgrade repository; unsupported source requirement: shared
[255]
$ hg debugupgraderepo --run -q
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd !)
preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd !)
added: persistent-nodemap
processed revlogs:
- all-filelogs
- changelog
- manifest
$ hg log -r .
changeset: 1:5f6d8a4bf34a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: added b
Shared one should work
$ cd ../shared1
$ hg log -r .
changeset: 2:155349b645be
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: added c
Testing that nonsharedrc is loaded for source and not shared
$ cd ../source
$ touch .hg/hgrc-not-shared
$ echo "[ui]" >> .hg/hgrc-not-shared
$ echo "traceback=true" >> .hg/hgrc-not-shared
$ hg showconfig ui.traceback
true
$ HGEDITOR=cat hg config --non-shared
[ui]
traceback=true
$ cd ../shared1
$ hg showconfig ui.traceback
[1]
Unsharing works
$ hg unshare
Test that source config is added to the shared one after unshare, and the config
of current repo is still respected over the config which came from source config
$ cd ../cloned
$ hg push ../shared1
pushing to ../shared1
searching for changes
adding changesets
adding manifests
adding file changes
error: pretxnchangegroup.reject_merge_commits hook failed: bcde3522682d rejected as merge on the same branch. Please consider rebase.
transaction abort!
rollback completed
abort: bcde3522682d rejected as merge on the same branch. Please consider rebase.
[255]
$ hg showconfig ui.curses -R ../shared1
false
$ cd ../
Test that upgrading using debugupgraderepo works
=================================================
$ hg init non-share-safe --config format.use-share-safe=false
$ cd non-share-safe
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
$ echo foo > foo
$ hg ci -Aqm 'added foo'
$ echo bar > bar
$ hg ci -Aqm 'added bar'
Create a share before upgrading
$ cd ..
$ hg share non-share-safe nss-share
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugrequirements -R nss-share
dotencode
fncache
generaldelta
revlogv1
shared
sparserevlog
store
$ cd non-share-safe
Upgrade
$ hg debugupgraderepo -q
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
added: share-safe
processed revlogs:
- all-filelogs
- changelog
- manifest
$ hg debugupgraderepo --run
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
added: share-safe
share-safe
Upgrades a repository to share-safe format so that future shares of this repository share its requirements and configs.
processed revlogs:
- all-filelogs
- changelog
- manifest
beginning upgrade...
repository locked and read-only
creating temporary repository to stage upgraded data: $TESTTMP/non-share-safe/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes)
upgrading repository requirements
removing temporary repository $TESTTMP/non-share-safe/.hg/upgrade.* (glob)
repository upgraded to share safe mode, existing shares will still work in old non-safe mode. Re-share existing shares to use them in safe mode New shares will be created in safe mode.
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
share-safe
sparserevlog
store
$ cat .hg/requires
share-safe
$ cat .hg/store/requires
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
$ hg log -GT "{node}: {desc}\n"
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
Make sure existing shares dont work with default config
$ hg log -GT "{node}: {desc}\n" -R ../nss-share
abort: version mismatch: source uses share-safe functionality while the current share does not
[255]
Create a safe share from upgrade one
$ cd ..
$ hg share non-share-safe ss-share
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd ss-share
$ hg log -GT "{node}: {desc}\n"
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
$ cd ../non-share-safe
Test that downgrading works too
$ cat >> $HGRCPATH <<EOF
> [extensions]
> share =
> [format]
> use-share-safe = False
> EOF
$ hg debugupgraderepo -q
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
removed: share-safe
processed revlogs:
- all-filelogs
- changelog
- manifest
$ hg debugupgraderepo --run
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
removed: share-safe
processed revlogs:
- all-filelogs
- changelog
- manifest
beginning upgrade...
repository locked and read-only
creating temporary repository to stage upgraded data: $TESTTMP/non-share-safe/.hg/upgrade.* (glob)
(it is safe to interrupt this process any time before data migration completes)
upgrading repository requirements
removing temporary repository $TESTTMP/non-share-safe/.hg/upgrade.* (glob)
repository downgraded to not use share safe mode, existing shares will not work and needs to be reshared.
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
$ cat .hg/requires
dotencode
fncache
generaldelta
revlogv1
sparserevlog
store
$ test -f .hg/store/requires
[1]
$ hg log -GT "{node}: {desc}\n"
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
Make sure existing shares still works
$ hg log -GT "{node}: {desc}\n" -R ../nss-share
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
$ hg log -GT "{node}: {desc}\n" -R ../ss-share
abort: share source does not support exp-sharesafe requirement
[255]
Testing automatic downgrade of shares when config is set
$ touch ../ss-share/.hg/wlock
$ hg log -GT "{node}: {desc}\n" -R ../ss-share --config share.safe-mismatch.source-not-safe=downgrade-abort
abort: failed to downgrade share, got error: Lock held
[255]
$ rm ../ss-share/.hg/wlock
$ hg log -GT "{node}: {desc}\n" -R ../ss-share --config share.safe-mismatch.source-not-safe=downgrade-abort
repository downgraded to not use share-safe mode
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
$ hg log -GT "{node}: {desc}\n" -R ../ss-share
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
Testing automatic upgrade of shares when config is set
$ hg debugupgraderepo -q --run --config format.use-share-safe=True
upgrade will perform the following actions:
requirements
preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
added: share-safe
processed revlogs:
- all-filelogs
- changelog
- manifest
repository upgraded to share safe mode, existing shares will still work in old non-safe mode. Re-share existing shares to use them in safe mode New shares will be created in safe mode.
$ hg debugrequirements
dotencode
fncache
generaldelta
revlogv1
share-safe
sparserevlog
store
$ hg log -GT "{node}: {desc}\n" -R ../nss-share
abort: version mismatch: source uses share-safe functionality while the current share does not
[255]
Check that if lock is taken, upgrade fails but read operation are successful
$ hg log -GT "{node}: {desc}\n" -R ../nss-share --config share.safe-mismatch.source-safe=upgra
abort: share-safe mismatch with source.
Unrecognized value 'upgra' of `share.safe-mismatch.source-safe` set.
(run `hg help config.share.safe-mismatch.source-safe`)
[255]
$ touch ../nss-share/.hg/wlock
$ hg log -GT "{node}: {desc}\n" -R ../nss-share --config share.safe-mismatch.source-safe=upgrade-allow
failed to upgrade share, got error: Lock held
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
$ hg log -GT "{node}: {desc}\n" -R ../nss-share --config share.safe-mismatch.source-safe=upgrade-allow --config share.safe-mismatch.source-safe.warn=False
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
$ hg log -GT "{node}: {desc}\n" -R ../nss-share --config share.safe-mismatch.source-safe=upgrade-abort
abort: failed to upgrade share, got error: Lock held
[255]
$ rm ../nss-share/.hg/wlock
$ hg log -GT "{node}: {desc}\n" -R ../nss-share --config share.safe-mismatch.source-safe=upgrade-abort
repository upgraded to use share-safe mode
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo
Test that unshare works
$ hg unshare -R ../nss-share
$ hg log -GT "{node}: {desc}\n" -R ../nss-share
@ f63db81e6dde1d9c78814167f77fb1fb49283f4f: added bar
|
o f3ba8b99bb6f897c87bbc1c07b75c6ddf43a4f77: added foo