Mercurial > hg
view tests/test-relink.t @ 47682:78f7f0d490ee
dirstate-v2: Move fixed-size tree metadata into the docket file
Before this changeset, the dirstate-v2 data file contained not only nodes
and paths that may be reused when appending to an existing file,
but also some fixed-size metadata that applies to the entire tree
and was added at the end of the data file for every append.
This moves that metadata into the docket file, so that repeated "append"
operations without meaningful changes don’t actually need to grow any file.
Differential Revision: https://phab.mercurial-scm.org/D11098
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Thu, 15 Jul 2021 23:02:17 +0200 |
parents | 43f0a37bd9ed |
children | 42d2b31cee0b |
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#require hardlink $ echo "[extensions]" >> $HGRCPATH $ echo "relink=" >> $HGRCPATH $ fix_path() { > tr '\\' / > } $ cat > arelinked.py <<EOF > from __future__ import absolute_import, print_function > import os > import sys > from mercurial import ( > pycompat, > util, > ) > path1, path2 = sys.argv[1:3] > if util.samefile(pycompat.fsencode(path1), pycompat.fsencode(path2)): > print('%s == %s' % (path1, path2)) > else: > print('%s != %s' % (path1, path2)) > EOF create source repository $ hg init repo $ cd repo $ echo a > a $ echo b > b $ hg ci -Am addfile adding a adding b $ cat "$TESTDIR/binfile.bin" >> a $ cat "$TESTDIR/binfile.bin" >> b $ hg ci -Am changefiles make another commit to create files larger than 1 KB to test formatting of final byte count $ cat "$TESTDIR/binfile.bin" >> a $ cat "$TESTDIR/binfile.bin" >> b $ hg ci -m anotherchange don't sit forever trying to double-lock the source repo $ hg relink . relinking $TESTTMP/repo/.hg/store to $TESTTMP/repo/.hg/store there is nothing to relink Test files are read in binary mode $ "$PYTHON" -c "open('.hg/store/data/dummy.i', 'wb').write(b'a\r\nb\n')" $ cd .. clone and pull to break links $ hg clone --pull -r0 repo clone adding changesets adding manifests adding file changes added 1 changesets with 2 changes to 2 files new changesets 008c0c271c47 updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd clone $ hg pull -q $ echo b >> b $ hg ci -m changeb created new head $ "$PYTHON" -c "open('.hg/store/data/dummy.i', 'wb').write(b'a\nb\r\n')" relink #if no-reposimplestore $ hg relink --debug --config progress.debug=true | fix_path relinking $TESTTMP/repo/.hg/store to $TESTTMP/clone/.hg/store tip has 2 files, estimated total number of files: 3 collecting: 00changelog.i 1/3 files (33.33%) collecting: 00manifest.i 2/3 files (66.67%) collecting: a.i 3/3 files (100.00%) collecting: b.i 4/3 files (133.33%) collecting: dummy.i 5/3 files (166.67%) collected 5 candidate storage files not linkable: 00changelog.i not linkable: 00manifest.i pruning: data/a.i 3/5 files (60.00%) not linkable: data/b.i pruning: data/dummy.i 5/5 files (100.00%) pruned down to 2 probably relinkable files relinking: data/a.i 1/2 files (50.00%) not linkable: data/dummy.i relinked 1 files (1.36 KB reclaimed) $ cd .. check hardlinks $ "$PYTHON" arelinked.py repo/.hg/store/data/a.i clone/.hg/store/data/a.i repo/.hg/store/data/a.i == clone/.hg/store/data/a.i $ "$PYTHON" arelinked.py repo/.hg/store/data/b.i clone/.hg/store/data/b.i repo/.hg/store/data/b.i != clone/.hg/store/data/b.i #endif