setup

  $ cat >> $HGRCPATH <<EOF

  > [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 <<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 (no-dirstate-v2 !)

     preserved: dotencode, exp-rc-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, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd dirstate-v2 !)

     preserved: dotencode, exp-rc-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, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)

     added: share-safe

  $ hg debugupgraderepo --run

  upgrade will perform the following actions:

  requirements

     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)

     preserved: dotencode, exp-rc-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.

  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 !)