upstream/mercurial-mirror Files · tests/blackbox-readonly-dispatch.py

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

Yuya Nishihara - - Load All Authors

File last commit:

r36757:f4a508f4 default


                r39673:c7a7c7e8

default

Download file

             blackbox-readonly-dispatch.py
        
                    38 lines
            
             | 1.1 KiB
            
                | text/x-python
            
             |
                PythonLexer
            
             / tests / blackbox-readonly-dispatch.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      from __future__ import absolute_import

      import os

      from mercurial import (

          dispatch,

          ui as uimod,

      )

      def testdispatch(cmd):

          """Simple wrapper around dispatch.dispatch()

          Prints command and result value, but does not handle quoting.

          """

          ui = uimod.ui.load()

          ui.status(b"running: %s\n" % cmd)

          req = dispatch.request(cmd.split(), ui)

          result = dispatch.dispatch(req)

          ui.status(b"result: %r\n" % result)

      # create file 'foo', add and commit

      f = open(b'foo', 'wb')

      f.write(b'foo\n')

      f.close()

      testdispatch(b"--debug add foo")

      testdispatch(b"--debug commit -m commit1 -d 2000-01-01 foo")

      # append to file 'foo' and commit

      f = open(b'foo', 'ab')

      f.write(b'bar\n')

      f.close()

      # remove blackbox.log directory (proxy for readonly log file)

      os.rmdir(b".hg/blackbox.log")

      # replace it with the real blackbox.log file

      os.rename(b".hg/blackbox.log-", b".hg/blackbox.log")

      testdispatch(b"--debug commit -m commit2 -d 2000-01-02 foo")

      # check 88803a69b24 (fancyopts modified command table)

      testdispatch(b"--debug log -r 0")

      testdispatch(b"--debug log -r tip")

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				from __future__ import absolute_import
				import os
				from mercurial import (
				dispatch,
				ui as uimod,
				)

				def testdispatch(cmd):
				"""Simple wrapper around dispatch.dispatch()

				Prints command and result value, but does not handle quoting.
				"""
				ui = uimod.ui.load()
				ui.status(b"running: %s\n" % cmd)
				req = dispatch.request(cmd.split(), ui)
				result = dispatch.dispatch(req)
				ui.status(b"result: %r\n" % result)

				# create file 'foo', add and commit
				f = open(b'foo', 'wb')
				f.write(b'foo\n')
				f.close()
				testdispatch(b"--debug add foo")
				testdispatch(b"--debug commit -m commit1 -d 2000-01-01 foo")

				# append to file 'foo' and commit
				f = open(b'foo', 'ab')
				f.write(b'bar\n')
				f.close()
				# remove blackbox.log directory (proxy for readonly log file)
				os.rmdir(b".hg/blackbox.log")
				# replace it with the real blackbox.log file
				os.rename(b".hg/blackbox.log-", b".hg/blackbox.log")
				testdispatch(b"--debug commit -m commit2 -d 2000-01-02 foo")

				# check 88803a69b24 (fancyopts modified command table)
				testdispatch(b"--debug log -r 0")
				testdispatch(b"--debug log -r tip")