#require reporevlogstore

A repo with unknown revlogv2 requirement string cannot be opened

  $ hg init invalidreq

  $ cd invalidreq

  $ echo exp-revlogv2.unknown >> .hg/requires

  $ hg log

  abort: repository requires features unknown to this Mercurial: exp-revlogv2.unknown

  (see https://mercurial-scm.org/wiki/MissingRequirement for more information)

  [255]

  $ cd ..

Can create and open repo with revlog v2 requirement

  $ cat >> $HGRCPATH << EOF

  > [experimental]

  > revlogv2 = enable-unstable-format-and-corrupt-my-data

  > EOF

  $ hg init new-repo

  $ cd new-repo

  $ hg debugrequires | grep revlogv2

  exp-revlogv2.2

  dirstate-v2 (dirstate-v2 !)

  $ hg log

Unknown flags to revlog are rejected

  >>> with open('.hg/store/00changelog.i', 'wb') as fh:

  ...     fh.write(b'\xff\x00\xde\xad') and None

  $ hg log

  abort: unknown flags (0xff00) in version 57005 revlog 00changelog

  [50]

  $ cd ..

Writing a simple revlog v2 works

  $ hg init simple

  $ cd simple

  $ touch foo

  $ hg -q commit -A -m initial

  $ hg log

  changeset:   0:96ee1d7354c4

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     initial

Header written as expected

  $ f --hexdump --bytes 4 .hg/store/00changelog.i

  .hg/store/00changelog.i:

  0000: 00 00 de ad                                     |....|

  $ f --hexdump --bytes 4 .hg/store/data/foo.i

  .hg/store/data/foo.i:

  0000: 00 00 de ad                                     |....|

Bundle use a compatible changegroup format

------------------------------------------

  $ hg bundle --all ../basic.hg

  1 changesets found

  $ hg debugbundle --spec ../basic.hg

  bzip2-v2

The expected files are generated

--------------------------------

We should have have:

- a docket

- a index file with a unique name

- a data file

  $ ls .hg/store/00changelog* .hg/store/00manifest*

  .hg/store/00changelog-1335303a.sda

  .hg/store/00changelog-6b8ab34b.idx

  .hg/store/00changelog-b875dfc5.dat

  .hg/store/00changelog.i

  .hg/store/00manifest-05a21d65.idx

  .hg/store/00manifest-43c37dde.dat

  .hg/store/00manifest-e2c9362a.sda

  .hg/store/00manifest.i

Local clone works

-----------------

  $ hg clone . ../cloned-repo

  updating to branch default

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg tip | tee ../tip-new

  changeset:   0:96ee1d7354c4

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     initial

  $ hg tip -R ../cloned-repo | tee ../tip-cloned

  changeset:   0:96ee1d7354c4

  tag:         tip

  user:        test

  date:        Thu Jan 01 00:00:00 1970 +0000

  summary:     initial

The two repository should be identical, this diff MUST be empty

  $ cmp ../tip-new ../tip-cloned || diff -U8 ../tip-new ../tip-cloned

hg verify should be happy

-------------------------

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checked 1 changesets with 1 changes to 1 files

  $ hg verify -R ../cloned-repo

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  checked 1 changesets with 1 changes to 1 files