upstream/mercurial-mirror Files · contrib/memory.py

windows: disable pager when packaged with py2exe...

windows: disable pager when packaged with py2exe With Windows and py3, all output that got directed to the pager was lost. It can be worked around by the user piping to `more`, but that's easy to forget, and can be dangerous if `hg diff` or similar incorrectly shows no changes. The problem appears to be the new WindowsConsoleIO in py3.6[1]. We've worked around it with PyOxidizer by setting the `Py_LegacyWindowsStdioFlag` interpreter option, and worked around it with `hg.bat` and `exewrapper.c` by internally setting `PYTHONLEGACYWINDOWSSTDIO=1`. Unfortunately, py2exe doesn't appear to be able to set the interpreter option, and somehow seems to also ignore the environment variable. The latter isn't a good fix anyway, since setting it in the environment would affect other python programs too. We can't install a global config for this because a config closer to the user (e.g. from before pager was turned on by default) can override it. [1] https://peps.python.org/pep-0528/ Differential Revision: https://phab.mercurial-scm.org/D12556

Gregory Szorc - - Load All Authors

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      # memory.py - track memory usage

      #

      # Copyright 2009 Olivia Mackall <olivia@selenic.com> and others

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      '''helper extension to measure memory usage

      Reads current and peak memory usage from ``/proc/self/status`` and

      prints it to ``stderr`` on exit.

      '''

      def memusage(ui):

          """Report memory usage of the current process."""

          result = {'peak': 0, 'rss': 0}

          with open('/proc/self/status', 'r') as status:

              # This will only work on systems with a /proc file system

              # (like Linux).

              for line in status:

                  parts = line.split()

                  key = parts[0][2:-1].lower()

                  if key in result:

                      result[key] = int(parts[1])

          ui.write_err(

              ", ".join(

                  ["%s: %.1f MiB" % (k, v / 1024.0) for k, v in result.iteritems()]

              )

              + "\n"

          )

      def extsetup(ui):

          ui.atexit(memusage, ui)

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				# memory.py - track memory usage
				#
				# Copyright 2009 Olivia Mackall <olivia@selenic.com> and others
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				'''helper extension to measure memory usage

				Reads current and peak memory usage from ``/proc/self/status`` and
				prints it to ``stderr`` on exit.
				'''


				def memusage(ui):
				"""Report memory usage of the current process."""
				result = {'peak': 0, 'rss': 0}
				with open('/proc/self/status', 'r') as status:
				# This will only work on systems with a /proc file system
				# (like Linux).
				for line in status:
				parts = line.split()
				key = parts[0][2:-1].lower()
				if key in result:
				result[key] = int(parts[1])
				ui.write_err(
				", ".join(
				["%s: %.1f MiB" % (k, v / 1024.0) for k, v in result.iteritems()]
				)
				+ "\n"
				)


				def extsetup(ui):
				ui.atexit(memusage, ui)