view tests/test-mac-packages.t @ 39638:d292328e0143

exchangev2: fetch manifest revisions

Now that the server has support for retrieving manifest data, we can
implement the client bits to call it.

We teach the changeset fetching code to capture the manifest revisions
that are encountered on incoming changesets. We then feed this into a
new function which filters out known manifests and then batches up
manifest data requests to the server.

This is different from the previous wire protocol in a few notable
ways.

First, the client fetches manifest data separately and explicitly.
Before, we'd ask the server for data pertaining to some changesets
(via a "getbundle" command) and manifests (and files) would be sent
automatically. Providing an API for looking up just manifest data
separately gives clients much more flexibility for manifest management.
For example, a client may choose to only fetch manifest data on demand
instead of prefetching it (i.e. partial clone).

Second, we send N commands to the server for manifest retrieval instead
of 1. This property has a few nice side-effects. One is that the
deterministic nature of the requests lends itself to server-side
caching. For example, say the remote has 50,000 manifests. If the
server is configured to cache responses, each time a new commit
arrives, you will have a cache miss and need to regenerate all outgoing
data. But if you makes N requests requesting 10,000 manifests each,
a new commit will still yield cache hits on the initial, unchanged
manifest batches/requests.

A derived benefit from these properties is that resumable clone is
conceptually simpler to implement. When making a monolithic request
for all of the repository data, recovering from an interrupted clone
is hard because the server was in the driver's seat and was maintaining
state about all the data that needed transferred. With the client
driving fetching, the client can persist the set of unfetched entities
and retry/resume a fetch if something goes wrong. Or we can fetch all
data N changesets at a time and slowly build up a repository. This
approach is drastically easier to implement when we have server APIs
exposing low-level repository primitives (such as manifests and files).

We don't yet support tree manifests. But it should be possible to
implement that with the existing wire protocol command.

Differential Revision: https://phab.mercurial-scm.org/D4489

#require test-repo slow osx osxpackaging

  $ . "$TESTDIR/helpers-testrepo.sh"
  $ testrepohgenv

  $ OUTPUTDIR="`pwd`"
  $ export OUTPUTDIR
  $ KEEPMPKG=yes
  $ export KEEPMPKG

  $ cd "$TESTDIR"/..
  $ contrib/genosxversion.py --selftest ignoredarg
  $ make osx > "$OUTPUTDIR/build.log" 2>&1
  $ cd "$OUTPUTDIR"
  $ ls -d *.pkg
  Mercurial-*-macosx10.*.pkg (glob)

  $ xar -xf Mercurial*.pkg

Gather list of all installed files:
  $ lsbom mercurial.pkg/Bom > boms.txt

We've had problems with the filter logic in the past. Make sure no
.DS_Store files ended up in the final package:
  $ grep DS_S boms.txt
  [1]

Spot-check some randomly selected files:
  $ grep bdiff boms.txt | cut -d '	' -f 1,2,3
  ./Library/Python/2.7/site-packages/mercurial/cext/bdiff.so	100755	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.py	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.pyc	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiff.pyo	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.py	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.pyc	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/cffi/bdiffbuild.pyo	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.py	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.pyc	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/pure/bdiff.pyo	100644	0/0
  $ grep zsh/site-functions/_hg boms.txt | cut -d '	' -f 1,2,3
  ./usr/local/share/zsh/site-functions/_hg	100644	0/0
  $ grep hg-completion.bash boms.txt | cut -d '	' -f 1,2,3
  ./usr/local/hg/contrib/hg-completion.bash	100644	0/0
  $ egrep 'man[15]' boms.txt | cut -d '	' -f 1,2,3
  ./usr/local/share/man/man1	40755	0/0
  ./usr/local/share/man/man1/chg.1	100644	0/0
  ./usr/local/share/man/man1/hg.1	100644	0/0
  ./usr/local/share/man/man5	40755	0/0
  ./usr/local/share/man/man5/hgignore.5	100644	0/0
  ./usr/local/share/man/man5/hgrc.5	100644	0/0
  $ grep bser boms.txt | cut -d '	' -f 1,2,3
  ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/bser.so	100755	0/0
  ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.py	100644	0/0
  ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.pyc	100644	0/0
  ./Library/Python/2.7/site-packages/hgext/fsmonitor/pywatchman/pybser.pyo	100644	0/0
  $ grep localrepo boms.txt | cut -d '	' -f 1,2,3
  ./Library/Python/2.7/site-packages/mercurial/localrepo.py	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/localrepo.pyc	100644	0/0
  ./Library/Python/2.7/site-packages/mercurial/localrepo.pyo	100644	0/0
  $ egrep 'bin/' boms.txt | cut -d '	' -f 1,2,3
  ./usr/local/bin/chg	100755	0/0
  ./usr/local/bin/hg	100755	0/0

Make sure the built binary uses the system Python interpreter
  $ bsdtar xf mercurial.pkg/Payload usr/local/bin
Use a glob to find this to avoid check-code whining about a fixed path.
  $ head -n 1 usr/local/b?n/hg
  #!/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python

Note that we're not currently installing any /etc/mercurial stuff,
including merge-tool configurations.