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dirstate-v2: freeze the on-disk format...
dirstate-v2: freeze the on-disk format It seems the format as reached a good balance. With a core of new capabilities that motivated it initially and enough new feature and room for future improvement to be a clear progress we can set a milestone for. Having the format frozen will help the feature to get real life testing, outside of the test suite. The feature itself stay experimental but the config gains a new name to avoid people enable non-frozen version by default. If too many bugs are reported during the RC we might move the format back to experimental and drop its support in future version (in favor of a new one) Differential Revision: https://phab.mercurial-scm.org/D11709

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test-sqlitestore.t
131 lines | 3.2 KiB | text/troff | Tads3Lexer
#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
exp-rc-dirstate-v2 (dirstate-v2 !)
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-rc-dirstate-v2 (dirstate-v2 !)
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-rc-dirstate-v2 (dirstate-v2 !)
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-rc-dirstate-v2 (dirstate-v2 !)
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 ..