upstream/mercurial-mirror Files · mercurial/scmposix.py

typing: correct pytype mistakes in `mercurial/vfs.py`...

typing: correct pytype mistakes in `mercurial/vfs.py` With the previous changes in this series (prior to merging the *.pyi file), this wasn't too bad- the only definitively wrong things were the `data` argument to `writelines()`, and the return type on `backgroundclosing()` (both of these errors were dropped in the previous commit; for some reason pytype doesn't like `contextlib._GeneratorContextManager`, even though that's what it determined it is): File "/mnt/c/Users/Matt/hg/mercurial/vfs.py", line 411, in abstractvfs: Bad return type 'contextlib._GeneratorContextManager' for generator function abstractvfs.backgroundclosing [bad-yield-annotation] Expected Generator, Iterable or Iterator PyCharm thinks this is `Generator[backgroundfilecloser], Any, None]`, which can be reduced to `Iterator[backgroundfilecloser]`, but pytype flagged the line that calls `yield` without an argument unless it's also `Optional`. PyCharm is happy either way. For some reason, `Iterable` didn't work for pytype: File "/mnt/c/Users/Matt/hg/mercurial/vfs.py", line 390, in abstractvfs: Function contextlib.contextmanager was called with the wrong arguments [wrong-arg-types] Expected: (func: Callable[[Any], Iterator]) Actually passed: (func: Callable[[Any, Any, Any], Iterable[Optional[Any]]]) Attributes of protocol Iterator[_T_co] are not implemented on Iterable[Optional[Any]]: __next__

Matt Harbison - - Load All Authors

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      from __future__ import annotations

      import array

      import errno

      import fcntl

      import os

      import sys

      import typing

      from typing import (

          List,

          Tuple,

      )

      from . import (

          encoding,

          pycompat,

          util,

      )

      if typing.TYPE_CHECKING:

          from . import ui as uimod

      # BSD 'more' escapes ANSI color sequences by default. This can be disabled by

      # $MORE variable, but there's no compatible option with Linux 'more'. Given

      # OS X is widely used and most modern Unix systems would have 'less', setting

      # 'less' as the default seems reasonable.

      fallbackpager = b'less'

      def _rcfiles(path: bytes) -> List[bytes]:

          rcs = [os.path.join(path, b'hgrc')]

          rcdir = os.path.join(path, b'hgrc.d')

          try:

              rcs.extend(

                  [

                      os.path.join(rcdir, f)

                      for f, kind in sorted(util.listdir(rcdir))

                      if f.endswith(b".rc")

                  ]

              )

          except OSError:

              pass

          return rcs

      def systemrcpath() -> List[bytes]:

          path = []

          if pycompat.sysplatform == b'plan9':

              root = b'lib/mercurial'

          else:

              root = b'etc/mercurial'

          # old mod_python does not set sys.argv

          if len(getattr(sys, 'argv', [])) > 0:

              p = os.path.dirname(os.path.dirname(pycompat.sysargv[0]))

              if p != b'/':

                  path.extend(_rcfiles(os.path.join(p, root)))

          path.extend(_rcfiles(b'/' + root))

          return path

      def userrcpath() -> List[bytes]:

          if pycompat.sysplatform == b'plan9':

              return [encoding.environ[b'home'] + b'/lib/hgrc']

          else:

              confighome = encoding.environ.get(b'XDG_CONFIG_HOME')

              if confighome is None or not os.path.isabs(confighome):

                  confighome = os.path.expanduser(b'~/.config')

              return [

                  os.path.expanduser(b'~/.hgrc'),

                  os.path.join(confighome, b'hg', b'hgrc'),

              ]

      def termsize(ui: "uimod.ui") -> Tuple[int, int]:

          try:

              import termios

              TIOCGWINSZ = termios.TIOCGWINSZ  # unavailable on IRIX (issue3449)

          except (AttributeError, ImportError):

              return 80, 24

          for dev in (ui.ferr, ui.fout, ui.fin):

              try:

                  try:

                      fd = dev.fileno()

                  except AttributeError:

                      continue

                  if not os.isatty(fd):

                      continue

                  arri = fcntl.ioctl(fd, TIOCGWINSZ, b'\0' * 8)

                  height, width = array.array('h', arri)[:2]

                  if width > 0 and height > 0:

                      return width, height

              except ValueError:

                  pass

              except IOError as e:

                  if e.errno == errno.EINVAL:

                      pass

                  else:

                      raise

          return 80, 24

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				from __future__ import annotations

				import array
				import errno
				import fcntl
				import os
				import sys
				import typing

				from typing import (
				List,
				Tuple,
				)

				from . import (
				encoding,
				pycompat,
				util,
				)

				if typing.TYPE_CHECKING:
				from . import ui as uimod

				# BSD 'more' escapes ANSI color sequences by default. This can be disabled by
				# $MORE variable, but there's no compatible option with Linux 'more'. Given
				# OS X is widely used and most modern Unix systems would have 'less', setting
				# 'less' as the default seems reasonable.
				fallbackpager = b'less'


				def _rcfiles(path: bytes) -> List[bytes]:
				rcs = [os.path.join(path, b'hgrc')]
				rcdir = os.path.join(path, b'hgrc.d')
				try:
				rcs.extend(
				[
				os.path.join(rcdir, f)
				for f, kind in sorted(util.listdir(rcdir))
				if f.endswith(b".rc")
				]
				)
				except OSError:
				pass
				return rcs


				def systemrcpath() -> List[bytes]:
				path = []
				if pycompat.sysplatform == b'plan9':
				root = b'lib/mercurial'
				else:
				root = b'etc/mercurial'
				# old mod_python does not set sys.argv
				if len(getattr(sys, 'argv', [])) > 0:
				p = os.path.dirname(os.path.dirname(pycompat.sysargv[0]))
				if p != b'/':
				path.extend(_rcfiles(os.path.join(p, root)))
				path.extend(_rcfiles(b'/' + root))
				return path


				def userrcpath() -> List[bytes]:
				if pycompat.sysplatform == b'plan9':
				return [encoding.environ[b'home'] + b'/lib/hgrc']
				else:
				confighome = encoding.environ.get(b'XDG_CONFIG_HOME')
				if confighome is None or not os.path.isabs(confighome):
				confighome = os.path.expanduser(b'~/.config')

				return [
				os.path.expanduser(b'~/.hgrc'),
				os.path.join(confighome, b'hg', b'hgrc'),
				]


				def termsize(ui: "uimod.ui") -> Tuple[int, int]:
				try:
				import termios

				TIOCGWINSZ = termios.TIOCGWINSZ # unavailable on IRIX (issue3449)
				except (AttributeError, ImportError):
				return 80, 24

				for dev in (ui.ferr, ui.fout, ui.fin):
				try:
				try:
				fd = dev.fileno()
				except AttributeError:
				continue
				if not os.isatty(fd):
				continue
				arri = fcntl.ioctl(fd, TIOCGWINSZ, b'\0' * 8)
				height, width = array.array('h', arri)[:2]
				if width > 0 and height > 0:
				return width, height
				except ValueError:
				pass
				except IOError as e:
				if e.errno == errno.EINVAL:
				pass
				else:
				raise
				return 80, 24