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

revisions: allow "x123" to refer to nodeid prefix "123"...

revisions: allow "x123" to refer to nodeid prefix "123" When resolving "123" to a revision, we try to interpret it as revnum before we try to interpret it as a nodeid hex prefix. This can lead to the shortest valid prefix being longer than necessary. This patch lets us write such nodeids in a shorter form by prefixing them with "x" instead of adding more hex digits until they're longer than the longest decimal revnum. On my hg repo with almost 69k revisions, turning this feature on saves on average 0.4% on the average nodeid length. That clearly doesn't justify this patch. However, it becomes more usefule when combined with the earlier patches in this series that let you disambiguate nodeid prefixes within a configured revset. Note that we attempt to resolve symbols as nodeid prefixes after we've exhausted all other posibilities, so this is a backwards compatible change (only queries that would previously fail may now succeed). I've still hidden this feature behind an experiemntal config option so we can roll it back if needed. Differential Revision: https://phab.mercurial-scm.org/D4041

Yuya Nishihara - - Load All Authors

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      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")

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				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")