setup

  $ cat >> $HGRCPATH <<EOF

  > [extensions]

  > share =

  > [format]

  > exp-share-safe = True

  > EOF

prepare source repo

  $ hg init source

  $ cd source

  $ cat .hg/requires

  exp-sharesafe

  $ cat .hg/store/requires

  dotencode

  fncache

  generaldelta

  revlogv1

  sparserevlog

  store

  $ hg debugrequirements

  dotencode

  exp-sharesafe

  fncache

  generaldelta

  revlogv1

  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

  [255]

  $ 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

  exp-sharesafe

  shared

  $ hg debugrequirements -R ../source

  dotencode

  exp-sharesafe

  fncache

  generaldelta

  revlogv1

  sparserevlog

  store

  $ hg debugrequirements

  dotencode

  exp-sharesafe

  fncache

  generaldelta

  revlogv1

  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

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

  $ 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, exp-sharesafe, fncache, generaldelta, revlogv1, sparserevlog, store

     added: revlog-compression-zstd

  $ 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, exp-sharesafe, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !)

     preserved: dotencode, exp-sharesafe, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)

     added: persistent-nodemap

  $ 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

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