upstream/mercurial-mirror Files · contrib/automation/hgautomation/__init__.py

setup: build extensions in parallel by default...

setup: build extensions in parallel by default The build_ext distutils command in Python 3.5+ has a "parallel" option that controls whether to build extensions in parallel. It is disabled by default (None) and can be set to an integer value for number of cores or True to indicate use all available CPU cores. This commit changes our build_ext command override to set "parallel" to True unless a value has been provided by the caller. On my machine, this makes `python setup.py build_ext` 1-4s faster. It is worth noting that at this time, each individual source file constituting the extension is still built serially. For Mercurial, this means that we can't build faster than the slowest-to-build extension, which is the zstd extension by a long shot. This means that setup.py is still not very efficient at utilizing multiple cores. But we're better than before. Differential Revision: https://phab.mercurial-scm.org/D6923 # no-check-commit because of foo_bar naming

Gregory Szorc - - Load All Authors

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      # __init__.py - High-level automation interfaces

      #

      # Copyright 2019 Gregory Szorc <gregory.szorc@gmail.com>

      #

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

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

      # no-check-code because Python 3 native.

      import pathlib

      import secrets

      from .aws import (

          AWSConnection,

      )

      class HGAutomation:

          """High-level interface for Mercurial automation.

          Holds global state, provides access to other primitives, etc.

          """

          def __init__(self, state_path: pathlib.Path):

              self.state_path = state_path

              state_path.mkdir(exist_ok=True)

          def default_password(self):

              """Obtain the default password to use for remote machines.

              A new password will be generated if one is not stored.

              """

              p = self.state_path / 'default-password'

              try:

                  with p.open('r', encoding='ascii') as fh:

                      data = fh.read().strip()

                      if data:

                          return data

              except FileNotFoundError:

                  pass

              password = secrets.token_urlsafe(24)

              with p.open('w', encoding='ascii') as fh:

                  fh.write(password)

                  fh.write('\n')

              p.chmod(0o0600)

              return password

          def aws_connection(self, region: str, ensure_ec2_state: bool=True):

              """Obtain an AWSConnection instance bound to a specific region."""

              return AWSConnection(self, region, ensure_ec2_state=ensure_ec2_state)

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				# __init__.py - High-level automation interfaces
				#
				# Copyright 2019 Gregory Szorc <gregory.szorc@gmail.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				# no-check-code because Python 3 native.

				import pathlib
				import secrets

				from .aws import (
				AWSConnection,
				)


				class HGAutomation:
				"""High-level interface for Mercurial automation.

				Holds global state, provides access to other primitives, etc.
				"""

				def __init__(self, state_path: pathlib.Path):
				self.state_path = state_path

				state_path.mkdir(exist_ok=True)

				def default_password(self):
				"""Obtain the default password to use for remote machines.

				A new password will be generated if one is not stored.
				"""
				p = self.state_path / 'default-password'

				try:
				with p.open('r', encoding='ascii') as fh:
				data = fh.read().strip()

				if data:
				return data

				except FileNotFoundError:
				pass

				password = secrets.token_urlsafe(24)

				with p.open('w', encoding='ascii') as fh:
				fh.write(password)
				fh.write('\n')

				p.chmod(0o0600)

				return password

				def aws_connection(self, region: str, ensure_ec2_state: bool=True):
				"""Obtain an AWSConnection instance bound to a specific region."""

				return AWSConnection(self, region, ensure_ec2_state=ensure_ec2_state)