setup $ cat >> $HGRCPATH < [extensions] > share = > [format] > use-share-safe = True > [storage] > revlog.persistent-nodemap.slow-path=allow > # enforce zlib to ensure we can upgrade to zstd later > [format] > revlog-compression=zlib > # we want to be able to enable it later > use-persistent-nodemap=no > EOF prepare source repo $ hg init source $ cd source $ cat .hg/requires dirstate-v2 (dirstate-v2 !) share-safe $ cat .hg/store/requires dotencode fncache generaldelta revlogv1 sparserevlog store $ hg debugrequirements dotencode dirstate-v2 (dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) share-safe shared $ hg debugrequirements -R ../source dotencode dirstate-v2 (dirstate-v2 !) fncache generaldelta revlogv1 share-safe sparserevlog store $ hg debugrequirements dotencode dirstate-v2 (dirstate-v2 !) 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 <> .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 (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (dirstate-v2 !) 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 no-dirstate-v2 !) preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) fncache generaldelta revlogv1 shared sparserevlog store $ cd non-share-safe Upgrade $ hg debugupgraderepo -q requirements preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !) 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 (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) fncache generaldelta revlogv1 share-safe sparserevlog store $ cat .hg/requires dirstate-v2 (dirstate-v2 !) 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 (see `hg help config.format.use-share-safe` for more information) [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 < [extensions] > share = > [format] > use-share-safe = False > EOF $ hg debugupgraderepo -q requirements preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !) 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 (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) fncache generaldelta revlogv1 sparserevlog store $ cat .hg/requires dotencode dirstate-v2 (dirstate-v2 !) 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 share-safe requirement (see `hg help config.format.use-share-safe` for more information) [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 (see `hg help config.format.use-share-safe` for more information) [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 (no-dirstate-v2 !) preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !) 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 dirstate-v2 (dirstate-v2 !) 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 (see `hg help config.format.use-share-safe` for more information) [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. (see `hg help config.format.use-share-safe` for more information) [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 (see `hg help config.format.use-share-safe` for more information) [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