Mercurial > hg
view tests/test-repo-compengines.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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A new repository uses zlib storage, which doesn't need a requirement $ cat << EOF >> $HGRCPATH > [format] > # stabilize test accross variant > revlog-compression=zlib > EOF $ hg init default $ cd default $ cat .hg/requires dotencode fncache generaldelta persistent-nodemap (rust !) revlogv1 sparserevlog store testonly-simplestore (reposimplestore !) $ touch foo $ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text to trigger compression' $ hg debugrevlog -c | grep 0x78 0x78 (x) : 1 (100.00%) 0x78 (x) : 110 (100.00%) $ cd .. Unknown compression engine to format.compression aborts $ hg --config format.revlog-compression=unknown init unknown abort: compression engines "unknown" defined by format.revlog-compression not available (run "hg debuginstall" to list available compression engines) [255] unknown compression engine in a list with known one works fine $ hg --config format.revlog-compression=zlib,unknown init zlib-before-unknow $ hg --config format.revlog-compression=unknown,zlib init unknown-before-zlib A requirement specifying an unknown compression engine results in bail $ hg init unknownrequirement $ cd unknownrequirement $ echo exp-compression-unknown >> .hg/requires $ hg log abort: repository requires features unknown to this Mercurial: exp-compression-unknown (see https://mercurial-scm.org/wiki/MissingRequirement for more information) [255] $ cd .. Specifying a new format.compression on an existing repo won't introduce data with that engine or a requirement $ cd default $ touch bar $ hg --config format.revlog-compression=none -q commit -A -m 'add bar with a lot of repeated repeated repeated text' $ cat .hg/requires dotencode fncache generaldelta persistent-nodemap (rust !) revlogv1 sparserevlog store testonly-simplestore (reposimplestore !) $ hg debugrevlog -c | grep 0x78 0x78 (x) : 2 (100.00%) 0x78 (x) : 199 (100.00%) $ cd .. #if zstd $ hg --config format.revlog-compression=zstd init zstd $ cd zstd $ cat .hg/requires dotencode fncache generaldelta persistent-nodemap (rust !) revlog-compression-zstd revlogv1 sparserevlog store testonly-simplestore (reposimplestore !) $ touch foo $ hg -q commit -A -m 'initial commit with a lot of repeated repeated repeated text' $ hg debugrevlog -c | grep 0x28 0x28 : 1 (100.00%) 0x28 : 98 (100.00%) $ cd .. #endif checking zlib options ===================== $ hg init zlib-level-default $ hg init zlib-level-1 $ cat << EOF >> zlib-level-1/.hg/hgrc > [storage] > revlog.zlib.level=1 > EOF $ hg init zlib-level-9 $ cat << EOF >> zlib-level-9/.hg/hgrc > [storage] > revlog.zlib.level=9 > EOF $ commitone() { > repo=$1 > cp $RUNTESTDIR/bundles/issue4438-r1.hg $repo/a > hg -R $repo add $repo/a > hg -R $repo commit -m some-commit > } $ for repo in zlib-level-default zlib-level-1 zlib-level-9; do > commitone $repo > done $ $RUNTESTDIR/f -s */.hg/store/data/* default/.hg/store/data/bar.i: size=64 default/.hg/store/data/foo.i: size=64 zlib-level-1/.hg/store/data/a.i: size=4146 zlib-level-9/.hg/store/data/a.i: size=4138 zlib-level-default/.hg/store/data/a.i: size=4138 zstd/.hg/store/data/foo.i: size=64 (zstd !) Test error cases $ hg init zlib-level-invalid $ cat << EOF >> zlib-level-invalid/.hg/hgrc > [storage] > revlog.zlib.level=foobar > EOF $ commitone zlib-level-invalid config error: storage.revlog.zlib.level is not a valid integer ('foobar') config error: storage.revlog.zlib.level is not a valid integer ('foobar') [30] $ hg init zlib-level-out-of-range $ cat << EOF >> zlib-level-out-of-range/.hg/hgrc > [storage] > revlog.zlib.level=42 > EOF $ commitone zlib-level-out-of-range abort: invalid value for `storage.revlog.zlib.level` config: 42 abort: invalid value for `storage.revlog.zlib.level` config: 42 [255] checking details of none compression ==================================== $ hg init none-compression --config format.revlog-compression=none $ commitone() { > repo=$1 > cp $RUNTESTDIR/bundles/issue4438-r1.hg $repo/a > hg -R $repo add $repo/a > hg -R $repo commit -m some-commit > } $ commitone none-compression $ hg log -R none-compression changeset: 0:68b53da39cd8 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: some-commit $ cat none-compression/.hg/requires dotencode exp-compression-none fncache generaldelta persistent-nodemap (rust !) revlogv1 sparserevlog store testonly-simplestore (reposimplestore !) $ $RUNTESTDIR/f -s none-compression/.hg/store/data/* none-compression/.hg/store/data/a.i: size=4216 #if zstd checking zstd options ===================== $ hg init zstd-level-default --config format.revlog-compression=zstd $ hg init zstd-level-1 --config format.revlog-compression=zstd $ cat << EOF >> zstd-level-1/.hg/hgrc > [storage] > revlog.zstd.level=1 > EOF $ hg init zstd-level-22 --config format.revlog-compression=zstd $ cat << EOF >> zstd-level-22/.hg/hgrc > [storage] > revlog.zstd.level=22 > EOF $ commitone() { > repo=$1 > cp $RUNTESTDIR/bundles/issue4438-r1.hg $repo/a > hg -R $repo add $repo/a > hg -R $repo commit -m some-commit > } $ for repo in zstd-level-default zstd-level-1 zstd-level-22; do > commitone $repo > done $ $RUNTESTDIR/f -s zstd-*/.hg/store/data/* zstd-level-1/.hg/store/data/a.i: size=4114 zstd-level-22/.hg/store/data/a.i: size=4091 zstd-level-default/\.hg/store/data/a\.i: size=(4094|4102) (re) Test error cases $ hg init zstd-level-invalid --config format.revlog-compression=zstd $ cat << EOF >> zstd-level-invalid/.hg/hgrc > [storage] > revlog.zstd.level=foobar > EOF $ commitone zstd-level-invalid config error: storage.revlog.zstd.level is not a valid integer ('foobar') config error: storage.revlog.zstd.level is not a valid integer ('foobar') [30] $ hg init zstd-level-out-of-range --config format.revlog-compression=zstd $ cat << EOF >> zstd-level-out-of-range/.hg/hgrc > [storage] > revlog.zstd.level=42 > EOF $ commitone zstd-level-out-of-range abort: invalid value for `storage.revlog.zstd.level` config: 42 abort: invalid value for `storage.revlog.zstd.level` config: 42 [255] #endif