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revlog: introduce an explicit tracking of what the revlog is about
Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.
In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.
So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.
The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.
Differential Revision: https://phab.mercurial-scm.org/D10352
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Tue, 06 Apr 2021 05:20:24 +0200 |
| parents | 965b11c1bd82 |
| children |
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SVN-fs-dump-format-version: 2 UUID: a9c3b03d-cffa-4248-8023-ecf4b2bdf5d5 Revision-number: 0 Prop-content-length: 56 Content-length: 56 K 8 svn:date V 27 2009-04-29T19:26:51.708679Z PROPS-END Revision-number: 1 Prop-content-length: 112 Content-length: 112 K 7 svn:log V 10 init projA K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:26:52.115023Z PROPS-END Node-path: branches Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: tags Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: trunk Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Node-path: unrelated Node-kind: dir Node-action: add Prop-content-length: 10 Content-length: 10 PROPS-END Revision-number: 2 Prop-content-length: 105 Content-length: 105 K 7 svn:log V 4 adda K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:26:53.109819Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b Content-length: 12 PROPS-END a Revision-number: 3 Prop-content-length: 108 Content-length: 108 K 7 svn:log V 7 changea K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:26:54.073017Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: change Text-content-length: 4 Text-content-md5: 0d227f1abf8c2932d342e9b99cc957eb Text-content-sha1: d7c8127a20a396cff08af086a1c695b0636f0c29 Content-length: 4 a a Revision-number: 4 Prop-content-length: 109 Content-length: 109 K 7 svn:log V 8 changea2 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:26:55.076032Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: change Text-content-length: 6 Text-content-md5: 7d4ebf8f298d22fc349a91725b00af1c Text-content-sha1: 92f31bc48f52339253fce6cad9f2f0c95b302f7e Content-length: 6 a a a Revision-number: 5 Prop-content-length: 117 Content-length: 117 K 7 svn:log V 15 unrelatedchange K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:26:56.095784Z PROPS-END Node-path: unrelated/dummy Node-kind: file Node-action: add Prop-content-length: 10 Text-content-length: 2 Text-content-md5: 60b725f10c9c85c70d97880dfe8191b3 Text-content-sha1: 3f786850e387550fdab836ed7e6dc881de23001b Content-length: 12 PROPS-END a Revision-number: 6 Prop-content-length: 131 Content-length: 131 K 7 svn:log V 29 tagging trunk.v1 trunk.badtag K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:00.074864Z PROPS-END Node-path: tags/trunk.badtag Node-kind: dir Node-action: add Node-copyfrom-rev: 5 Node-copyfrom-path: trunk Node-path: tags/trunk.v1 Node-kind: dir Node-action: add Node-copyfrom-rev: 5 Node-copyfrom-path: trunk Revision-number: 7 Prop-content-length: 109 Content-length: 109 K 7 svn:log V 8 changea3 K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:01.073910Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: change Text-content-length: 8 Text-content-md5: d12178e74d8774e34361e0a08d1fd2b7 Text-content-sha1: cce0b2a263066e26610df9082b7b3c810f71262e Content-length: 8 a a a a Revision-number: 8 Prop-content-length: 118 Content-length: 118 K 7 svn:log V 16 fix trunk.badtag K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:04.073542Z PROPS-END Node-path: tags/trunk.goodtag Node-kind: dir Node-action: add Node-copyfrom-rev: 7 Node-copyfrom-path: tags/trunk.badtag Node-path: tags/trunk.badtag Node-action: delete Revision-number: 9 Prop-content-length: 108 Content-length: 108 K 7 svn:log V 7 changea K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:05.095204Z PROPS-END Node-path: trunk/a Node-kind: file Node-action: change Text-content-length: 10 Text-content-md5: 3f65cbdca1b64c2f8f574fccae24f3a4 Text-content-sha1: 5c077263421de2abff9dbe867921bc6810811aa2 Content-length: 10 a a a a a Revision-number: 10 Prop-content-length: 115 Content-length: 115 K 7 svn:log V 13 removegoodtag K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:06.089193Z PROPS-END Node-path: tags/trunk.goodtag Node-action: delete Revision-number: 11 Prop-content-length: 117 Content-length: 117 K 7 svn:log V 15 recreategoodtag K 10 svn:author V 7 pmezard K 8 svn:date V 27 2009-04-29T19:27:09.070471Z PROPS-END Node-path: tags/trunk.goodtag Node-kind: dir Node-action: add Node-copyfrom-rev: 10 Node-copyfrom-path: trunk