Mercurial > hg
view tests/test-remotefilelog-strip.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 | 47a9527731c3 |
children |
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#require no-windows $ . "$TESTDIR/remotefilelog-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [remotefilelog] > server=True > EOF $ echo x > x $ hg commit -qAm x $ cd .. $ hgcloneshallow ssh://user@dummy/master shallow -q 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) $ cd shallow $ cat >> $TESTTMP/get_file_linknode.py <<EOF > from mercurial import node, registrar, scmutil > cmdtable = {} > command = registrar.command(cmdtable) > @command(b'debug-file-linknode', [(b'r', b'rev', b'.', b'rev')], b'hg debug-file-linknode FILE') > def debug_file_linknode(ui, repo, file, **opts): > rflctx = scmutil.revsingle(repo.unfiltered(), opts['rev']).filectx(file) > ui.status(b'%s\n' % node.hex(rflctx.ancestormap()[rflctx._filenode][2])) > EOF $ cat >> .hg/hgrc <<EOF > [ui] > interactive=1 > [extensions] > strip= > get_file_linknode=$TESTTMP/get_file_linknode.py > [experimental] > evolution=createmarkers,allowunstable > EOF $ echo a > a $ hg commit -qAm msg1 $ hg commit --amend 're:^$' -m msg2 $ hg commit --amend 're:^$' -m msg3 $ hg --hidden log -G -T '{rev} {node|short}' @ 3 df91f74b871e | | x 2 70494d7ec5ef |/ | x 1 1e423846dde0 |/ o 0 b292c1e3311f $ hg debug-file-linknode -r 70494d a df91f74b871e064c89afa1fe9e2f66afa2c125df $ hg --hidden strip -r 1 3 0 files updated, 0 files merged, 1 files removed, 0 files unresolved saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/df91f74b871e-c94d67be-backup.hg $ hg --hidden log -G -T '{rev} {node|short}' o 1 70494d7ec5ef | @ 0 b292c1e3311f Demonstrate that the linknode points to a commit that is actually in the repo after the strip operation. Otherwise remotefilelog has to search every commit in the repository looking for a valid linkrev every time it's queried, such as during push. $ hg debug-file-linknode -r 70494d a 70494d7ec5ef6cd3cd6939a9fd2812f9956bf553