440 lines
14 KiB
Plaintext
440 lines
14 KiB
Plaintext
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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@imports('sys')
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def die(*args):
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'Print an error and terminate configure.'
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log.error(*args)
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sys.exit(1)
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@imports(_from='mozbuild.configure', _import='ConfigureError')
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def configure_error(message):
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'''Raise a programming error and terminate configure.
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Primarily for use in moz.configure templates to sanity check
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their inputs from moz.configure usage.'''
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raise ConfigureError(message)
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# A wrapper to obtain a process' output that returns the output generated
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# by running the given command if it exits normally, and streams that
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# output to log.debug and calls die or the given error callback if it
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# does not.
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@imports('subprocess')
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@imports('sys')
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@imports(_from='mozbuild.configure.util', _import='LineIO')
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@imports(_from='mozbuild.shellutil', _import='quote')
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def check_cmd_output(*args, **kwargs):
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onerror = kwargs.pop('onerror', None)
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with log.queue_debug():
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log.debug('Executing: `%s`', quote(*args))
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proc = subprocess.Popen(args, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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stdout, stderr = proc.communicate()
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retcode = proc.wait()
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if retcode == 0:
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return stdout
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log.debug('The command returned non-zero exit status %d.',
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retcode)
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for out, desc in ((stdout, 'output'), (stderr, 'error output')):
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if out:
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log.debug('Its %s was:', desc)
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with LineIO(lambda l: log.debug('| %s', l)) as o:
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o.write(out)
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if onerror:
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return onerror()
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die('Command `%s` failed with exit status %d.' %
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(quote(*args), retcode))
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@imports('os')
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def is_absolute_or_relative(path):
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if os.altsep and os.altsep in path:
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return True
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return os.sep in path
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@imports(_import='mozpack.path', _as='mozpath')
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def normsep(path):
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return mozpath.normsep(path)
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@imports('ctypes')
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@imports(_from='ctypes', _import='wintypes')
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@imports(_from='mozbuild.configure.constants', _import='WindowsBinaryType')
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def windows_binary_type(path):
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"""Obtain the type of a binary on Windows.
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Returns WindowsBinaryType constant.
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"""
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GetBinaryTypeW = ctypes.windll.kernel32.GetBinaryTypeW
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GetBinaryTypeW.argtypes = [wintypes.LPWSTR, wintypes.POINTER(wintypes.DWORD)]
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GetBinaryTypeW.restype = wintypes.BOOL
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bin_type = wintypes.DWORD()
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res = GetBinaryTypeW(path, ctypes.byref(bin_type))
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if not res:
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die('could not obtain binary type of %s' % path)
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if bin_type.value == 0:
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return WindowsBinaryType('win32')
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elif bin_type.value == 6:
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return WindowsBinaryType('win64')
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# If we see another binary type, something is likely horribly wrong.
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else:
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die('unsupported binary type on %s: %s' % (path, bin_type))
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@imports('ctypes')
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@imports(_from='ctypes', _import='wintypes')
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def get_GetShortPathNameW():
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GetShortPathNameW = ctypes.windll.kernel32.GetShortPathNameW
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GetShortPathNameW.argtypes = [wintypes.LPCWSTR, wintypes.LPWSTR,
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wintypes.DWORD]
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GetShortPathNameW.restype = wintypes.DWORD
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return GetShortPathNameW
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@template
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@imports('ctypes')
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@imports('platform')
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@imports(_from='mozbuild.shellutil', _import='quote')
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def normalize_path():
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# Until the build system can properly handle programs that need quoting,
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# transform those paths into their short version on Windows (e.g.
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# c:\PROGRA~1...).
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if platform.system() == 'Windows':
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GetShortPathNameW = get_GetShortPathNameW()
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def normalize_path(path):
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path = normsep(path)
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if quote(path) == path:
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return path
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size = 0
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while True:
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out = ctypes.create_unicode_buffer(size)
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needed = GetShortPathNameW(path, out, size)
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if size >= needed:
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if ' ' in out.value:
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die("GetShortPathName returned a long path name. "
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"Are 8dot3 filenames disabled?")
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return normsep(out.value)
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size = needed
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else:
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def normalize_path(path):
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return normsep(path)
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return normalize_path
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normalize_path = normalize_path()
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# Locates the given program using which, or returns the given path if it
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# exists.
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# The `paths` parameter may be passed to search the given paths instead of
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# $PATH.
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@imports(_from='which', _import='which')
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@imports(_from='which', _import='WhichError')
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@imports('itertools')
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@imports(_from='os', _import='pathsep')
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def find_program(file, paths=None):
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try:
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if is_absolute_or_relative(file):
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return normalize_path(which(os.path.basename(file),
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[os.path.dirname(file)]))
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if paths:
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if not isinstance(paths, (list, tuple)):
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die("Paths provided to find_program must be a list of strings, "
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"not %r", paths)
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paths = list(itertools.chain(
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*(p.split(pathsep) for p in paths if p)))
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return normalize_path(which(file, path=paths))
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except WhichError:
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return None
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@imports('os')
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@imports('subprocess')
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@imports(_from='mozbuild.configure.util', _import='LineIO')
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@imports(_from='tempfile', _import='mkstemp')
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def try_invoke_compiler(compiler, language, source, flags=None, onerror=None):
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flags = flags or []
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if not isinstance(flags, (list, tuple)):
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die("Flags provided to try_compile must be a list of strings, "
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"not %r", paths)
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suffix = {
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'C': '.c',
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'C++': '.cpp',
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}[language]
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fd, path = mkstemp(prefix='conftest.', suffix=suffix)
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try:
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source = source.encode('ascii', 'replace')
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log.debug('Creating `%s` with content:', path)
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with LineIO(lambda l: log.debug('| %s', l)) as out:
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out.write(source)
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os.write(fd, source)
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os.close(fd)
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cmd = compiler + list(flags) + [path]
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kwargs = {'onerror': onerror}
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return check_cmd_output(*cmd, **kwargs)
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finally:
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os.remove(path)
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def unique_list(l):
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result = []
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for i in l:
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if l not in result:
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result.append(i)
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return result
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# Get values out of the Windows registry. This function can only be called on
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# Windows.
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# The `pattern` argument is a string starting with HKEY_ and giving the full
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# "path" of the registry key to get the value for, with backslash separators.
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# The string can contains wildcards ('*').
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# The result of this functions is an enumerator yielding tuples for each
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# match. Each of these tuples contains the key name matching wildcards
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# followed by the value.
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#
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# Examples:
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# get_registry_values(r'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\'
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# r'Windows Kits\Installed Roots\KitsRoot*')
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# yields e.g.:
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# ('KitsRoot81', r'C:\Program Files (x86)\Windows Kits\8.1\')
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# ('KitsRoot10', r'C:\Program Files (x86)\Windows Kits\10\')
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#
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# get_registry_values(r'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\'
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# r'Windows Kits\Installed Roots\KitsRoot8.1')
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# yields e.g.:
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# (r'C:\Program Files (x86)\Windows Kits\8.1\',)
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#
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# get_registry_values(r'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\'
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# r'Windows Kits\*\KitsRoot*')
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# yields e.g.:
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# ('Installed Roots', 'KitsRoot81',
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# r'C:\Program Files (x86)\Windows Kits\8.1\')
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# ('Installed Roots', 'KitsRoot10',
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# r'C:\Program Files (x86)\Windows Kits\10\')
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#
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# get_registry_values(r'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\'
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# r'VisualStudio\VC\*\x86\*\Compiler')
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# yields e.g.:
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# ('19.0', 'arm', r'C:\...\amd64_arm\cl.exe')
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# ('19.0', 'x64', r'C:\...\amd64\cl.exe')
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# ('19.0', 'x86', r'C:\...\amd64_x86\cl.exe')
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@imports(_import='_winreg', _as='winreg')
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@imports(_from='__builtin__', _import='WindowsError')
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@imports(_from='fnmatch', _import='fnmatch')
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def get_registry_values(pattern):
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def enum_helper(func, key):
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i = 0
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while True:
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try:
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yield func(key, i)
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except WindowsError:
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break
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i += 1
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def get_keys(key, pattern):
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try:
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s = winreg.OpenKey(key, '\\'.join(pattern[:-1]))
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except WindowsError:
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return
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for k in enum_helper(winreg.EnumKey, s):
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if fnmatch(k, pattern[-1]):
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try:
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yield k, winreg.OpenKey(s, k)
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except WindowsError:
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pass
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def get_values(key, pattern):
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try:
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s = winreg.OpenKey(key, '\\'.join(pattern[:-1]))
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except WindowsError:
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return
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for k, v, t in enum_helper(winreg.EnumValue, s):
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if fnmatch(k, pattern[-1]):
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yield k, v
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def split_pattern(pattern):
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subpattern = []
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for p in pattern:
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subpattern.append(p)
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if '*' in p:
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yield subpattern
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subpattern = []
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if subpattern:
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yield subpattern
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pattern = pattern.split('\\')
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assert pattern[0].startswith('HKEY_')
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keys = [(getattr(winreg, pattern[0]),)]
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pattern = list(split_pattern(pattern[1:]))
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for i, p in enumerate(pattern):
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next_keys = []
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for base_key in keys:
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matches = base_key[:-1]
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base_key = base_key[-1]
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if i == len(pattern) - 1:
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want_name = '*' in p[-1]
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for name, value in get_values(base_key, p):
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yield matches + ((name, value) if want_name else (value,))
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else:
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for name, k in get_keys(base_key, p):
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next_keys.append(matches + (name, k))
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keys = next_keys
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@imports(_from='mozbuild.configure.util', _import='Version', _as='_Version')
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def Version(v):
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'A version number that can be compared usefully.'
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return _Version(v)
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# Denotes a deprecated option. Combines option() and @depends:
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# @deprecated_option('--option')
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# def option(value):
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# ...
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# @deprecated_option() takes the same arguments as option(), except `help`.
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# The function may handle the option like a typical @depends function would,
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# but it is recommended it emits a deprecation error message suggesting an
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# alternative option to use if there is one.
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@template
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def deprecated_option(*args, **kwargs):
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assert 'help' not in kwargs
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kwargs['help'] = 'Deprecated'
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opt = option(*args, **kwargs)
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def decorator(func):
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@depends(opt.option)
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def deprecated(value):
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if value.origin != 'default':
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return func(value)
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return deprecated
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return decorator
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# from mozbuild.util import ReadOnlyNamespace as namespace
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@imports(_from='mozbuild.util', _import='ReadOnlyNamespace')
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def namespace(**kwargs):
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return ReadOnlyNamespace(**kwargs)
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# Turn an object into an object that can be used as an argument to @depends.
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# The given object can be a literal value, a function that takes no argument,
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# or, for convenience, a @depends function.
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@template
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@imports(_from='inspect', _import='isfunction')
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@imports(_from='mozbuild.configure', _import='SandboxDependsFunction')
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def dependable(obj):
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if isinstance(obj, SandboxDependsFunction):
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return obj
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if isfunction(obj):
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return depends(when=True)(obj)
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return depends(when=True)(lambda: obj)
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always = dependable(True)
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never = dependable(False)
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# Some @depends function return namespaces, and one could want to use one
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# specific attribute from such a namespace as a "value" given to functions
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# such as `set_config`. But those functions do not take immediate values.
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# The `delayed_getattr` function allows access to attributes from the result
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# of a @depends function in a non-immediate manner.
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# @depends('--option')
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# def option(value)
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# return namespace(foo=value)
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# set_config('FOO', delayed_getattr(option, 'foo')
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@template
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def delayed_getattr(func, key):
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@depends(func)
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def result(value):
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# The @depends function we're being passed may have returned
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# None, or an object that simply doesn't have the wanted key.
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# In that case, just return None.
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return getattr(value, key, None)
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return result
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# Like @depends, but the decorated function is only called if one of the
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# arguments it would be called with has a positive value (bool(value) is True)
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@template
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def depends_if(*args):
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def decorator(func):
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@depends(*args)
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def wrapper(*args):
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if any(arg for arg in args):
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return func(*args)
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return wrapper
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return decorator
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# Like @depends_if, but a distinguished value passed as a keyword argument
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# "when" is truth tested instead of every argument. This value is not passed
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# to the function if it is called.
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@template
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def depends_when(*args, **kwargs):
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if not len(kwargs) == 1 and kwargs.get('when'):
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die('depends_when requires a single keyword argument, "when"')
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when = kwargs['when']
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if not when:
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return depends(*args)
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def decorator(fn):
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@depends(when, *args)
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def wrapper(val, *args):
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if val:
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return fn(*args)
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return wrapper
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return decorator
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# Hacks related to old-configure
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# ==============================
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@dependable
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def old_configure_assignments():
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return []
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@dependable
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def extra_old_configure_args():
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return []
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@template
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def add_old_configure_assignment(var, value):
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var = dependable(var)
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value = dependable(value)
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@depends(old_configure_assignments, var, value)
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@imports(_from='mozbuild.shellutil', _import='quote')
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def add_assignment(assignments, var, value):
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if var is None or value is None:
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return
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if value is True:
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assignments.append('%s=1' % var)
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elif value is False:
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assignments.append('%s=' % var)
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else:
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if isinstance(value, (list, tuple)):
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value = quote(*value)
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assignments.append('%s=%s' % (var, quote(str(value))))
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@template
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def add_old_configure_arg(arg):
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@depends(extra_old_configure_args, arg)
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def add_arg(args, arg):
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if arg:
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args.append(arg)
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