Mercurial > hg
view tests/test-revlog-v2.t @ 48652:6fd9a17c32ab
requirements: add an official `REVLOG_COMPRESSION_ZSTD` const
Such constant was missing and its value was missing from the set of requirements
that needs to be preserved through stream clone. This did not had any
consequence yet as the "bundle 2 does not filter its requirements" is shadowing
the issue.
However we are now in a situation where we can fix this issue. So lets do it
next.
With the preparation work on test, changing the streamreqs value only impact two
tests, where checking the full value seems to remains relevant.
Important note: Since older version of Mercurial used the old `supportedformat`
class attribute to check for stream requirement they supported, older version
will consider this requirements to prevent them from using streaming clone. Even
as they support this requirements for years. Pack for stable will be send to fix
it, but they will have to be backported to older version if needed.
Differential Revision: https://phab.mercurial-scm.org/D12083
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 24 Jan 2022 12:44:20 +0100 |
parents | 5e6542143d40 |
children | 6dde44bb99da |
line wrap: on
line source
#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 dotencode dirstate-v2 (dirstate-v2 !) exp-revlogv2.2 fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd (zstd !) sparserevlog store $ 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