Mercurial > hg
view tests/test-sqlitestore.t @ 47072:4c041c71ec01
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 | cc3ad5c3af3b |
children | 40b51c28b242 |
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#require sqlite no-chg The sqlitestore backend leaves transactions around when used with chg. Since this backend is primarily intended as proof-of-concept for alternative storage backends, disable it for chg test runs to avoid the instability. $ cat >> $HGRCPATH <<EOF > [extensions] > sqlitestore = > EOF New repo should not use SQLite by default $ hg init empty-no-sqlite $ cat empty-no-sqlite/.hg/requires dotencode fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd (zstd !) revlogv1 sparserevlog store storage.new-repo-backend=sqlite is recognized $ hg --config storage.new-repo-backend=sqlite init empty-sqlite $ cat empty-sqlite/.hg/requires dotencode exp-sqlite-001 exp-sqlite-comp-001=zstd (zstd !) exp-sqlite-comp-001=$BUNDLE2_COMPRESSIONS$ (no-zstd !) fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd (zstd !) revlogv1 sparserevlog store $ cat >> $HGRCPATH << EOF > [storage] > new-repo-backend = sqlite > EOF Can force compression to zlib $ hg --config storage.sqlite.compression=zlib init empty-zlib $ cat empty-zlib/.hg/requires dotencode exp-sqlite-001 exp-sqlite-comp-001=$BUNDLE2_COMPRESSIONS$ fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd (zstd !) revlogv1 sparserevlog store Can force compression to none $ hg --config storage.sqlite.compression=none init empty-none $ cat empty-none/.hg/requires dotencode exp-sqlite-001 exp-sqlite-comp-001=none fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd (zstd !) revlogv1 sparserevlog store Can make a local commit $ hg init local-commit $ cd local-commit $ echo 0 > foo $ hg commit -A -m initial adding foo That results in a row being inserted into various tables $ sqlite3 .hg/store/db.sqlite -init /dev/null << EOF > SELECT * FROM filepath; > EOF 1|foo $ sqlite3 .hg/store/db.sqlite -init /dev/null << EOF > SELECT * FROM fileindex; > EOF 1|1|0|-1|-1|0|0|1||6/\xef(L\xe2\xca\x02\xae\xcc\x8d\xe6\xd5\xe8\xa1\xc3\xaf\x05V\xfe (esc) $ sqlite3 .hg/store/db.sqlite -init /dev/null << EOF > SELECT * FROM delta; > EOF 1|1| \xd2\xaf\x8d\xd2"\x01\xdd\x8dH\xe5\xdc\xfc\xae\xd2\x81\xff\x94"\xc7|0 (esc) Tracking multiple files works $ echo 1 > bar $ hg commit -A -m 'add bar' adding bar $ sqlite3 .hg/store/db.sqlite -init /dev/null << EOF > SELECT * FROM filedata ORDER BY id ASC; > EOF 1|1|foo|0|6/\xef(L\xe2\xca\x02\xae\xcc\x8d\xe6\xd5\xe8\xa1\xc3\xaf\x05V\xfe|-1|-1|0|0|1| (esc) 2|2|bar|0|\xb8\xe0/d3s\x80!\xa0e\xf9Au\xc7\xcd#\xdb_\x05\xbe|-1|-1|1|0|2| (esc) Multiple revisions of a file works $ echo a >> foo $ hg commit -m 'modify foo' $ sqlite3 .hg/store/db.sqlite -init /dev/null << EOF > SELECT * FROM filedata ORDER BY id ASC; > EOF 1|1|foo|0|6/\xef(L\xe2\xca\x02\xae\xcc\x8d\xe6\xd5\xe8\xa1\xc3\xaf\x05V\xfe|-1|-1|0|0|1| (esc) 2|2|bar|0|\xb8\xe0/d3s\x80!\xa0e\xf9Au\xc7\xcd#\xdb_\x05\xbe|-1|-1|1|0|2| (esc) 3|1|foo|1|\xdd\xb3V\xcd\xde1p@\xf7\x8e\x90\xb8*\x8b,\xe9\x0e\xd6j+|0|-1|2|0|3|1 (esc) $ cd ..