upstream/mercurial-mirror Files · tests/test-extensions-afterloaded.t

wireprotov2: define and implement "manifestdata" command...

wireprotov2: define and implement "manifestdata" command The added command can be used for obtaining manifest data. Given a manifest path and set of manifest nodes, data about manifests can be retrieved. Unlike changeset data, we wish to emit deltas to describe manifest revisions. So the command uses the relatively new API for building delta requests and emitting them. The code calls into deltaparent(), which I'm not very keen of. There's still work to be done in delta generation land so implementation details of storage (e.g. exactly one delta is stored/available) don't creep into higher levels. But we can worry about this later (there is already a TODO on imanifestorage tracking this). On the subject of parent deltas, the server assumes parent revisions exist on the receiving end. This is obviously wrong for shallow clone. I've added TODOs to add a mechanism to the command to allow clients to specify desired behavior. This shouldn't be too difficult to implement. Another big change is that the client must explicitly request manifest nodes to retrieve. This is a major departure from "getbundle," where the server derives relevant manifests as it iterates changesets and sends them automatically. As implemented, the client must transmit each requested node to the server. At 20 bytes per node, we're looking at 2 MB per 100,000 nodes. Plus wire encoding overhead. This isn't ideal for clients with limited upload bandwidth. I plan to address this in the future by allowing alternate mechanisms for defining the revisions to retrieve. One idea is to define a range of changeset revisions whose manifest revisions to retrieve (similar to how "changesetdata" works). We almost certainly want an API to look up an individual manifest by node. And that's where I've chosen to start with the implementation. Again, a theme of this early exchangev2 work is I want to start by building primitives for accessing raw repository data first and see how far we can get with those before we need more complexity. Differential Revision: https://phab.mercurial-scm.org/D4488

Pulkit Goyal - - Load All Authors

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      Test the extensions.afterloaded() function

        $ cat > foo.py <<EOF

        > from mercurial import extensions

        > def uisetup(ui):

        >     ui.write(b"foo.uisetup\\n")

        >     ui.flush()

        >     def bar_loaded(loaded):

        >         ui.write(b"foo: bar loaded: %r\\n" % (loaded,))

        >         ui.flush()

        >     extensions.afterloaded(b'bar', bar_loaded)

        > EOF

        $ cat > bar.py <<EOF

        > def uisetup(ui):

        >     ui.write(b"bar.uisetup\\n")

        >     ui.flush()

        > EOF

        $ basepath=`pwd`

        $ hg init basic

        $ cd basic

        $ echo foo > file

        $ hg add file

        $ hg commit -m 'add file'

        $ echo '[extensions]' >> .hg/hgrc

        $ echo "foo = $basepath/foo.py" >> .hg/hgrc

        $ echo "bar = $basepath/bar.py" >> .hg/hgrc

        $ hg log -r. -T'{rev}\n'

        foo.uisetup

        foo: bar loaded: True

        bar.uisetup

        0

      Test afterloaded with the opposite extension load order

        $ cd ..

        $ hg init basic_reverse

        $ cd basic_reverse

        $ echo foo > file

        $ hg add file

        $ hg commit -m 'add file'

        $ echo '[extensions]' >> .hg/hgrc

        $ echo "bar = $basepath/bar.py" >> .hg/hgrc

        $ echo "foo = $basepath/foo.py" >> .hg/hgrc

        $ hg log -r. -T'{rev}\n'

        bar.uisetup

        foo.uisetup

        foo: bar loaded: True

        0

      Test the extensions.afterloaded() function when the requested extension is not

      loaded

        $ cd ..

        $ hg init notloaded

        $ cd notloaded

        $ echo foo > file

        $ hg add file

        $ hg commit -m 'add file'

        $ echo '[extensions]' >> .hg/hgrc

        $ echo "foo = $basepath/foo.py" >> .hg/hgrc

        $ hg log -r. -T'{rev}\n'

        foo.uisetup

        foo: bar loaded: False

        0

      Test the extensions.afterloaded() function when the requested extension is not

      configured but fails the minimum version check

        $ cd ..

        $ cat > minvers.py <<EOF

        > minimumhgversion = b'9999.9999'

        > def uisetup(ui):

        >     ui.write(b"minvers.uisetup\\n")

        >     ui.flush()

        > EOF

        $ hg init minversion

        $ cd minversion

        $ echo foo > file

        $ hg add file

        $ hg commit -m 'add file'

        $ echo '[extensions]' >> .hg/hgrc

        $ echo "foo = $basepath/foo.py" >> .hg/hgrc

        $ echo "bar = $basepath/minvers.py" >> .hg/hgrc

        $ hg log -r. -T'{rev}\n'

        (third party extension bar requires version 9999.9999 or newer of Mercurial; disabling)

        foo.uisetup

        foo: bar loaded: False

        0

      Test the extensions.afterloaded() function when the requested extension is not

      configured but fails the minimum version check, using the opposite load order

      for the two extensions.

        $ cd ..

        $ hg init minversion_reverse

        $ cd minversion_reverse

        $ echo foo > file

        $ hg add file

        $ hg commit -m 'add file'

        $ echo '[extensions]' >> .hg/hgrc

        $ echo "bar = $basepath/minvers.py" >> .hg/hgrc

        $ echo "foo = $basepath/foo.py" >> .hg/hgrc

        $ hg log -r. -T'{rev}\n'

        (third party extension bar requires version 9999.9999 or newer of Mercurial; disabling)

        foo.uisetup

        foo: bar loaded: False

        0

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				Test the extensions.afterloaded() function

				$ cat > foo.py <<EOF
				> from mercurial import extensions
				> def uisetup(ui):
				> ui.write(b"foo.uisetup\\n")
				> ui.flush()
				> def bar_loaded(loaded):
				> ui.write(b"foo: bar loaded: %r\\n" % (loaded,))
				> ui.flush()
				> extensions.afterloaded(b'bar', bar_loaded)
				> EOF
				$ cat > bar.py <<EOF
				> def uisetup(ui):
				> ui.write(b"bar.uisetup\\n")
				> ui.flush()
				> EOF
				$ basepath=`pwd`

				$ hg init basic
				$ cd basic
				$ echo foo > file
				$ hg add file
				$ hg commit -m 'add file'

				$ echo '[extensions]' >> .hg/hgrc
				$ echo "foo = $basepath/foo.py" >> .hg/hgrc
				$ echo "bar = $basepath/bar.py" >> .hg/hgrc
				$ hg log -r. -T'{rev}\n'
				foo.uisetup
				foo: bar loaded: True
				bar.uisetup
				0

				Test afterloaded with the opposite extension load order

				$ cd ..
				$ hg init basic_reverse
				$ cd basic_reverse
				$ echo foo > file
				$ hg add file
				$ hg commit -m 'add file'

				$ echo '[extensions]' >> .hg/hgrc
				$ echo "bar = $basepath/bar.py" >> .hg/hgrc
				$ echo "foo = $basepath/foo.py" >> .hg/hgrc
				$ hg log -r. -T'{rev}\n'
				bar.uisetup
				foo.uisetup
				foo: bar loaded: True
				0

				Test the extensions.afterloaded() function when the requested extension is not
				loaded

				$ cd ..
				$ hg init notloaded
				$ cd notloaded
				$ echo foo > file
				$ hg add file
				$ hg commit -m 'add file'

				$ echo '[extensions]' >> .hg/hgrc
				$ echo "foo = $basepath/foo.py" >> .hg/hgrc
				$ hg log -r. -T'{rev}\n'
				foo.uisetup
				foo: bar loaded: False
				0

				Test the extensions.afterloaded() function when the requested extension is not
				configured but fails the minimum version check

				$ cd ..
				$ cat > minvers.py <<EOF
				> minimumhgversion = b'9999.9999'
				> def uisetup(ui):
				> ui.write(b"minvers.uisetup\\n")
				> ui.flush()
				> EOF
				$ hg init minversion
				$ cd minversion
				$ echo foo > file
				$ hg add file
				$ hg commit -m 'add file'

				$ echo '[extensions]' >> .hg/hgrc
				$ echo "foo = $basepath/foo.py" >> .hg/hgrc
				$ echo "bar = $basepath/minvers.py" >> .hg/hgrc
				$ hg log -r. -T'{rev}\n'
				(third party extension bar requires version 9999.9999 or newer of Mercurial; disabling)
				foo.uisetup
				foo: bar loaded: False
				0

				Test the extensions.afterloaded() function when the requested extension is not
				configured but fails the minimum version check, using the opposite load order
				for the two extensions.

				$ cd ..
				$ hg init minversion_reverse
				$ cd minversion_reverse
				$ echo foo > file
				$ hg add file
				$ hg commit -m 'add file'

				$ echo '[extensions]' >> .hg/hgrc
				$ echo "bar = $basepath/minvers.py" >> .hg/hgrc
				$ echo "foo = $basepath/foo.py" >> .hg/hgrc
				$ hg log -r. -T'{rev}\n'
				(third party extension bar requires version 9999.9999 or newer of Mercurial; disabling)
				foo.uisetup
				foo: bar loaded: False
				0