Mercurial > hg
diff mercurial/requirements.py @ 45373:d7dcc75a3eae
localrepo: move requirements constant to requirements module
We now have a dedicated module for requirements constant, let's move the ones in
localrepo there.
Differential Revision: https://phab.mercurial-scm.org/D8918
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Sat, 08 Aug 2020 16:37:59 +0530 |
parents | 77b8588dd84e |
children | bd56597b2254 |
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--- a/mercurial/requirements.py Sat Aug 08 16:24:12 2020 +0530 +++ b/mercurial/requirements.py Sat Aug 08 16:37:59 2020 +0530 @@ -20,3 +20,27 @@ # Stores manifest in Tree structure TREEMANIFEST_REQUIREMENT = b'treemanifest' + +# Increment the sub-version when the revlog v2 format changes to lock out old +# clients. +REVLOGV2_REQUIREMENT = b'exp-revlogv2.1' + +# A repository with the sparserevlog feature will have delta chains that +# can spread over a larger span. Sparse reading cuts these large spans into +# pieces, so that each piece isn't too big. +# Without the sparserevlog capability, reading from the repository could use +# huge amounts of memory, because the whole span would be read at once, +# including all the intermediate revisions that aren't pertinent for the chain. +# This is why once a repository has enabled sparse-read, it becomes required. +SPARSEREVLOG_REQUIREMENT = b'sparserevlog' + +# A repository with the sidedataflag requirement will allow to store extra +# information for revision without altering their original hashes. +SIDEDATA_REQUIREMENT = b'exp-sidedata-flag' + +# A repository with the the copies-sidedata-changeset requirement will store +# copies related information in changeset's sidedata. +COPIESSDC_REQUIREMENT = b'exp-copies-sidedata-changeset' + +# The repository use persistent nodemap for the changelog and the manifest. +NODEMAP_REQUIREMENT = b'persistent-nodemap'