Mercurial > hg
view tests/test-fix-metadata.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 | 2d70b1118af2 |
children |
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A python hook for "hg fix" that prints out the number of files and revisions that were affected, along with which fixer tools were applied. Also checks how many times it sees a specific key generated by one of the fixer tools defined below. $ cat >> $TESTTMP/postfixhook.py <<EOF > import collections > def file(ui, repo, rev=None, path=b'', metadata=None, **kwargs): > ui.status(b'fixed %s in revision %d using %s\n' % > (path, rev, b', '.join(metadata.keys()))) > def summarize(ui, repo, replacements=None, wdirwritten=False, > metadata=None, **kwargs): > counts = collections.defaultdict(int) > keys = 0 > for fixername, metadatalist in metadata.items(): > for metadata in metadatalist: > if metadata is None: > continue > counts[fixername] += 1 > if 'key' in metadata: > keys += 1 > ui.status(b'saw "key" %d times\n' % (keys,)) > for name, count in sorted(counts.items()): > ui.status(b'fixed %d files with %s\n' % (count, name)) > if replacements: > ui.status(b'fixed %d revisions\n' % (len(replacements),)) > if wdirwritten: > ui.status(b'fixed the working copy\n') > EOF Some mock output for fixer tools that demonstrate what could go wrong with expecting the metadata output format. $ printf 'new content\n' > $TESTTMP/missing $ printf 'not valid json\0new content\n' > $TESTTMP/invalid $ printf '{"key": "value"}\0new content\n' > $TESTTMP/valid Configure some fixer tools based on the output defined above, and enable the hooks defined above. Disable parallelism to make output of the parallel file processing phase stable. $ cat >> $HGRCPATH <<EOF > [extensions] > fix = > [fix] > metadatafalse:command=cat $TESTTMP/missing > metadatafalse:pattern=metadatafalse > metadatafalse:metadata=false > missing:command=cat $TESTTMP/missing > missing:pattern=missing > missing:metadata=true > invalid:command=cat $TESTTMP/invalid > invalid:pattern=invalid > invalid:metadata=true > valid:command=cat $TESTTMP/valid > valid:pattern=valid > valid:metadata=true > [hooks] > postfixfile = python:$TESTTMP/postfixhook.py:file > postfix = python:$TESTTMP/postfixhook.py:summarize > [worker] > enabled=false > EOF See what happens when we execute each of the fixer tools. Some print warnings, some write back to the file. $ hg init repo $ cd repo $ printf "old content\n" > metadatafalse $ printf "old content\n" > invalid $ printf "old content\n" > missing $ printf "old content\n" > valid $ hg add -q $ hg fix -w ignored invalid output from fixer tool: invalid fixed metadatafalse in revision 2147483647 using metadatafalse ignored invalid output from fixer tool: missing fixed valid in revision 2147483647 using valid saw "key" 1 times fixed 1 files with valid fixed the working copy $ cat metadatafalse new content $ cat missing old content $ cat invalid old content $ cat valid new content $ cd ..