Mercurial > hg
view tests/test-bundle2-remote-changegroup.t @ 33289:abd7dedbaa36
sparse: vendor Facebook-developed extension
Facebook has developed an extension to enable "sparse" checkouts -
a working directory with a subset of files. This feature is a critical
component in enabling repositories to scale to infinite number of
files while retaining reasonable performance. It's worth noting
that sparse checkout is only one possible solution to this problem:
another is virtual filesystems that realize files on first access.
But given that virtual filesystems may not be accessible to all
users, sparse checkout is necessary as a fallback.
Per mailing list discussion at
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-March/095868.html
we want to add sparse checkout to the Mercurial distribution via
roughly the following mechanism:
1. Vendor extension as-is with minimal modifications (this patch)
2. Refactor extension so it is more clearly experimental and inline
with Mercurial practices
3. Move code from extension into core where possible
4. Drop experimental labeling and/or move feature into core
after sign-off from narrow clone feature owners
This commit essentially copies the sparse extension and tests
from revision 71e0a2aeca92a4078fe1b8c76e32c88ff1929737 of the
https://bitbucket.org/facebook/hg-experimental repository.
A list of modifications made as part of vendoring is as follows:
* "EXPERIMENTAL" added to module docstring
* Imports were changed to match Mercurial style conventions
* "testedwith" value was updated to core Mercurial special value and
comment boilerplate was inserted
* A "clone_sparse" function was renamed to "clonesparse" to appease
the style checker
* Paths to the sparse extension in tests reflect built-in location
* test-sparse-extensions.t was renamed to test-sparse-fsmonitor.t
and references to "simplecache" were removed. The test always skips
because it isn't trivial to run it given the way we currently run
fsmonitor tests
* A double empty line was removed from test-sparse-profiles.t
There are aspects of the added code that are obviously not ideal.
The goal is to make a minimal number of modifications as part of
the vendoring to make it easier to track changes from the original
implementation. Refactoring will occur in subsequent patches.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sat, 01 Jul 2017 10:43:29 -0700 |
parents | 2428e8ec0793 |
children | 5ede882c249c |
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#require killdaemons Create an extension to test bundle2 remote-changegroup parts $ cat > bundle2.py << EOF > """A small extension to test bundle2 remote-changegroup parts. > > Current bundle2 implementation doesn't provide a way to generate those > parts, so they must be created by extensions. > """ > from mercurial import bundle2, changegroup, discovery, exchange, util > > def _getbundlechangegrouppart(bundler, repo, source, bundlecaps=None, > b2caps=None, heads=None, common=None, > **kwargs): > """this function replaces the changegroup part handler for getbundle. > It allows to create a set of arbitrary parts containing changegroups > and remote-changegroups, as described in a bundle2maker file in the > repository .hg/ directory. > > Each line of that bundle2maker file contain a description of the > part to add: > - changegroup common_revset heads_revset > Creates a changegroup part based, using common_revset and > heads_revset for outgoing > - remote-changegroup url file > Creates a remote-changegroup part for a bundle at the given > url. Size and digest, as required by the client, are computed > from the given file. > - raw-remote-changegroup <python expression> > Creates a remote-changegroup part with the data given in the > Python expression as parameters. The Python expression is > evaluated with eval, and is expected to be a dict. > """ > def newpart(name, data=''): > """wrapper around bundler.newpart adding an extra part making the > client output information about each processed part""" > bundler.newpart('output', data=name) > part = bundler.newpart(name, data=data) > return part > > for line in open(repo.vfs.join('bundle2maker'), 'r'): > line = line.strip() > try: > verb, args = line.split(None, 1) > except ValueError: > verb, args = line, '' > if verb == 'remote-changegroup': > url, file = args.split() > bundledata = open(file, 'rb').read() > digest = util.digester.preferred(b2caps['digests']) > d = util.digester([digest], bundledata) > part = newpart('remote-changegroup') > part.addparam('url', url) > part.addparam('size', str(len(bundledata))) > part.addparam('digests', digest) > part.addparam('digest:%s' % digest, d[digest]) > elif verb == 'raw-remote-changegroup': > part = newpart('remote-changegroup') > for k, v in eval(args).items(): > part.addparam(k, str(v)) > elif verb == 'changegroup': > _common, heads = args.split() > common.extend(repo.lookup(r) for r in repo.revs(_common)) > heads = [repo.lookup(r) for r in repo.revs(heads)] > outgoing = discovery.outgoing(repo, common, heads) > cg = changegroup.getchangegroup(repo, 'changegroup', outgoing) > newpart('changegroup', cg.getchunks()) > else: > raise Exception('unknown verb') > > exchange.getbundle2partsmapping['changegroup'] = _getbundlechangegrouppart > EOF Start a simple HTTP server to serve bundles $ $PYTHON "$TESTDIR/dumbhttp.py" -p $HGPORT --pid dumb.pid $ cat dumb.pid >> $DAEMON_PIDS $ cat >> $HGRCPATH << EOF > [ui] > ssh=$PYTHON "$TESTDIR/dummyssh" > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline} > EOF $ hg init repo $ hg -R repo unbundle $TESTDIR/bundles/rebase.hg adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg -R repo log -G o 7:02de42196ebe draft Nicolas Dumazet <nicdumz.commits@gmail.com> H | | o 6:eea13746799a draft Nicolas Dumazet <nicdumz.commits@gmail.com> G |/| o | 5:24b6387c8c8c draft Nicolas Dumazet <nicdumz.commits@gmail.com> F | | | o 4:9520eea781bc draft Nicolas Dumazet <nicdumz.commits@gmail.com> E |/ | o 3:32af7686d403 draft Nicolas Dumazet <nicdumz.commits@gmail.com> D | | | o 2:5fddd98957c8 draft Nicolas Dumazet <nicdumz.commits@gmail.com> C | | | o 1:42ccdea3bb16 draft Nicolas Dumazet <nicdumz.commits@gmail.com> B |/ o 0:cd010b8cd998 draft Nicolas Dumazet <nicdumz.commits@gmail.com> A $ hg clone repo orig updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat > repo/.hg/hgrc << EOF > [extensions] > bundle2=$TESTTMP/bundle2.py > EOF Test a pull with an remote-changegroup $ hg bundle -R repo --type v1 --base '0:4' -r '5:7' bundle.hg 3 changesets found $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/bundle.hg bundle.hg > EOF $ hg clone orig clone -r 3 -r 4 adding changesets adding manifests adding file changes added 5 changesets with 5 changes to 5 files (+1 heads) updating to branch default 4 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup adding changesets adding manifests adding file changes added 3 changesets with 2 changes to 2 files (+1 heads) (run 'hg heads .' to see heads, 'hg merge' to merge) $ hg -R clone log -G o 7:02de42196ebe public Nicolas Dumazet <nicdumz.commits@gmail.com> H | | o 6:eea13746799a public Nicolas Dumazet <nicdumz.commits@gmail.com> G |/| o | 5:24b6387c8c8c public Nicolas Dumazet <nicdumz.commits@gmail.com> F | | | o 4:9520eea781bc public Nicolas Dumazet <nicdumz.commits@gmail.com> E |/ | @ 3:32af7686d403 public Nicolas Dumazet <nicdumz.commits@gmail.com> D | | | o 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | | | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B |/ o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A $ rm -rf clone Test a pull with an remote-changegroup and a following changegroup $ hg bundle -R repo --type v1 --base 2 -r '3:4' bundle2.hg 2 changesets found $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/bundle2.hg bundle2.hg > changegroup 0:4 5:7 > EOF $ hg clone orig clone -r 2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) remote: changegroup adding changesets adding manifests adding file changes added 3 changesets with 2 changes to 2 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg -R clone log -G o 7:02de42196ebe public Nicolas Dumazet <nicdumz.commits@gmail.com> H | | o 6:eea13746799a public Nicolas Dumazet <nicdumz.commits@gmail.com> G |/| o | 5:24b6387c8c8c public Nicolas Dumazet <nicdumz.commits@gmail.com> F | | | o 4:9520eea781bc public Nicolas Dumazet <nicdumz.commits@gmail.com> E |/ | o 3:32af7686d403 public Nicolas Dumazet <nicdumz.commits@gmail.com> D | | | @ 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | | | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B |/ o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A $ rm -rf clone Test a pull with a changegroup followed by an remote-changegroup $ hg bundle -R repo --type v1 --base '0:4' -r '5:7' bundle3.hg 3 changesets found $ cat > repo/.hg/bundle2maker << EOF > changegroup 000000000000 :4 > remote-changegroup http://localhost:$HGPORT/bundle3.hg bundle3.hg > EOF $ hg clone orig clone -r 2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: changegroup adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) remote: remote-changegroup adding changesets adding manifests adding file changes added 3 changesets with 2 changes to 2 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg -R clone log -G o 7:02de42196ebe public Nicolas Dumazet <nicdumz.commits@gmail.com> H | | o 6:eea13746799a public Nicolas Dumazet <nicdumz.commits@gmail.com> G |/| o | 5:24b6387c8c8c public Nicolas Dumazet <nicdumz.commits@gmail.com> F | | | o 4:9520eea781bc public Nicolas Dumazet <nicdumz.commits@gmail.com> E |/ | o 3:32af7686d403 public Nicolas Dumazet <nicdumz.commits@gmail.com> D | | | @ 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | | | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B |/ o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A $ rm -rf clone Test a pull with two remote-changegroups and a changegroup $ hg bundle -R repo --type v1 --base 2 -r '3:4' bundle4.hg 2 changesets found $ hg bundle -R repo --type v1 --base '3:4' -r '5:6' bundle5.hg 2 changesets found $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/bundle4.hg bundle4.hg > remote-changegroup http://localhost:$HGPORT/bundle5.hg bundle5.hg > changegroup 0:6 7 > EOF $ hg clone orig clone -r 2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 1 changes to 1 files remote: changegroup adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg -R clone log -G o 7:02de42196ebe public Nicolas Dumazet <nicdumz.commits@gmail.com> H | | o 6:eea13746799a public Nicolas Dumazet <nicdumz.commits@gmail.com> G |/| o | 5:24b6387c8c8c public Nicolas Dumazet <nicdumz.commits@gmail.com> F | | | o 4:9520eea781bc public Nicolas Dumazet <nicdumz.commits@gmail.com> E |/ | o 3:32af7686d403 public Nicolas Dumazet <nicdumz.commits@gmail.com> D | | | @ 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | | | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B |/ o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A $ rm -rf clone Hash digest tests $ hg bundle -R repo --type v1 -a bundle6.hg 8 changesets found $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'sha1', 'digest:sha1': '2c880cfec23cff7d8f80c2f12958d1563cbdaba6'} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf clone $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'md5', 'digest:md5': 'e22172c2907ef88794b7bea6642c2394'} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf clone Hash digest mismatch throws an error $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'sha1', 'digest:sha1': '0' * 40} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) transaction abort! rollback completed abort: bundle at http://localhost:$HGPORT/bundle6.hg is corrupted: sha1 mismatch: expected 0000000000000000000000000000000000000000, got 2c880cfec23cff7d8f80c2f12958d1563cbdaba6 [255] Multiple hash digests can be given $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'md5 sha1', 'digest:md5': 'e22172c2907ef88794b7bea6642c2394', 'digest:sha1': '2c880cfec23cff7d8f80c2f12958d1563cbdaba6'} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ rm -rf clone If either of the multiple hash digests mismatches, an error is thrown $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'md5 sha1', 'digest:md5': '0' * 32, 'digest:sha1': '2c880cfec23cff7d8f80c2f12958d1563cbdaba6'} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) transaction abort! rollback completed abort: bundle at http://localhost:$HGPORT/bundle6.hg is corrupted: md5 mismatch: expected 00000000000000000000000000000000, got e22172c2907ef88794b7bea6642c2394 [255] $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle6.hg', 'size': 1663, 'digests': 'md5 sha1', 'digest:md5': 'e22172c2907ef88794b7bea6642c2394', 'digest:sha1': '0' * 40} > EOF $ hg clone ssh://user@dummy/repo clone requesting all changes remote: remote-changegroup adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) transaction abort! rollback completed abort: bundle at http://localhost:$HGPORT/bundle6.hg is corrupted: sha1 mismatch: expected 0000000000000000000000000000000000000000, got 2c880cfec23cff7d8f80c2f12958d1563cbdaba6 [255] Corruption tests $ hg clone orig clone -r 2 adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 3 files updating to branch default 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/bundle4.hg bundle4.hg > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle5.hg', 'size': 578, 'digests': 'sha1', 'digest:sha1': '0' * 40} > changegroup 0:6 7 > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 1 changes to 1 files transaction abort! rollback completed abort: bundle at http://localhost:$HGPORT/bundle5.hg is corrupted: sha1 mismatch: expected 0000000000000000000000000000000000000000, got f29485d6bfd37db99983cfc95ecb52f8ca396106 [255] The entire transaction has been rolled back in the pull above $ hg -R clone log -G @ 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B | o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A No params $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: remote-changegroup: missing "url" param [255] Missing size $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle4.hg'} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: remote-changegroup: missing "size" param [255] Invalid size $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle4.hg', 'size': 'foo'} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: remote-changegroup: invalid value for param "size" [255] Size mismatch $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle4.hg', 'size': 42} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) transaction abort! rollback completed abort: bundle at http://localhost:$HGPORT/bundle4.hg is corrupted: size mismatch: expected 42, got 581 [255] Unknown digest $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle4.hg', 'size': 581, 'digests': 'foo', 'digest:foo': 'bar'} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: missing support for remote-changegroup - digest:foo [255] Missing digest $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'http://localhost:$HGPORT/bundle4.hg', 'size': 581, 'digests': 'sha1'} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: remote-changegroup: missing "digest:sha1" param [255] Not an HTTP url $ cat > repo/.hg/bundle2maker << EOF > raw-remote-changegroup {'url': 'ssh://localhost:$HGPORT/bundle4.hg', 'size': 581} > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: remote-changegroup does not support ssh urls [255] Not a bundle $ cat > notbundle.hg << EOF > foo > EOF $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/notbundle.hg notbundle.hg > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: http://localhost:$HGPORT/notbundle.hg: not a Mercurial bundle [255] Not a bundle 1.0 $ cat > notbundle10.hg << EOF > HG20 > EOF $ cat > repo/.hg/bundle2maker << EOF > remote-changegroup http://localhost:$HGPORT/notbundle10.hg notbundle10.hg > EOF $ hg pull -R clone ssh://user@dummy/repo pulling from ssh://user@dummy/repo searching for changes remote: remote-changegroup abort: http://localhost:$HGPORT/notbundle10.hg: not a bundle version 1.0 [255] $ hg -R clone log -G @ 2:5fddd98957c8 public Nicolas Dumazet <nicdumz.commits@gmail.com> C | o 1:42ccdea3bb16 public Nicolas Dumazet <nicdumz.commits@gmail.com> B | o 0:cd010b8cd998 public Nicolas Dumazet <nicdumz.commits@gmail.com> A $ rm -rf clone $ killdaemons.py