winpython/winpython/utils.py at master · mcmetrox/winpython · GitHub

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# -*- coding: utf-8 -*-

# Licensed under the terms of the MIT License

# (see winpython/__init__.py for details)

"""

WinPython utilities

Created on Tue Aug 14 14:08:40 2012

"""

from __future__ import print_function

import os

import os.path as osp

import subprocess

import re

import tarfile

import zipfile

import tempfile

import shutil

import atexit

import sys

import stat

import locale

# Local imports

from winpython.py3compat import winreg

def onerror(function, path, excinfo):

"""Error handler for `shutil.rmtree`.

If the error is due to an access error (read-only file), it

attempts to add write permission and then retries.

If the error is for another reason, it re-raises the error.

Usage: `shutil.rmtree(path, onerror=onerror)"""

if not os.access(path, os.W_OK):

# Is the error an access error?

os.chmod(path, stat.S_IWUSR)

function(path)

else:

raise

# Exact copy of 'spyderlib.utils.programs.is_program_installed' function

def is_program_installed(basename):

"""Return program absolute path if installed in PATH

Otherwise, return None"""

for path in os.environ["PATH"].split(os.pathsep):

abspath = osp.join(path, basename)

if osp.isfile(abspath):

return abspath

# =============================================================================

# Environment variables

# =============================================================================

def get_env(name, current=True):

"""Return HKCU/HKLM environment variable name and value

For example, get_user_env('PATH') may returns:

('Path', u'C:\\Program Files\\Intel\\WiFi\\bin\\')"""

root = (

winreg.HKEY_CURRENT_USER

if current

else winreg.HKEY_LOCAL_MACHINE

)

key = winreg.OpenKey(root, "Environment")

for index in range(0, winreg.QueryInfoKey(key)[1]):

try:

value = winreg.EnumValue(key, index)

if value[0].lower() == name.lower():

# Return both value[0] and value[1] because value[0] could be

# different from name (lowercase/uppercase)

return value[0], value[1]

except:

break

def set_env(name, value, current=True):

"""Set HKCU/HKLM environment variables"""

root = (

winreg.HKEY_CURRENT_USER

if current

else winreg.HKEY_LOCAL_MACHINE

)

key = winreg.OpenKey(root, "Environment")

try:

_x, key_type = winreg.QueryValueEx(key, name)

except WindowsError:

key_type = winreg.REG_EXPAND_SZ

key = winreg.OpenKey(

root, "Environment", 0, winreg.KEY_SET_VALUE

)

winreg.SetValueEx(key, name, 0, key_type, value)

from win32gui import SendMessageTimeout

from win32con import (

HWND_BROADCAST,

WM_SETTINGCHANGE,

SMTO_ABORTIFHUNG,

)

SendMessageTimeout(

HWND_BROADCAST,

WM_SETTINGCHANGE,

"Environment",

SMTO_ABORTIFHUNG,

5000,

)

#==============================================================================

# https://stackoverflow.com/questions/580924/how-to-access-a-files-properties-on-windows

def getFileProperties(fname):

#==============================================================================

"""

Read all properties of the given file return them as a dictionary.

"""

import win32api

propNames = ('Comments', 'InternalName', 'ProductName',

'CompanyName', 'LegalCopyright', 'ProductVersion',

'FileDescription', 'LegalTrademarks', 'PrivateBuild',

'FileVersion', 'OriginalFilename', 'SpecialBuild')

props = {'FixedFileInfo': None, 'StringFileInfo': None, 'FileVersion': None}

try:

# backslash as parm returns dictionary of numeric info corresponding to VS_FIXEDFILEINFO struc

fixedInfo = win32api.GetFileVersionInfo(fname, '\\')

props['FixedFileInfo'] = fixedInfo

props['FileVersion'] = "%d.%d.%d.%d" % (fixedInfo['FileVersionMS'] / 65536,

fixedInfo['FileVersionMS'] % 65536, fixedInfo['FileVersionLS'] / 65536,

fixedInfo['FileVersionLS'] % 65536)

# \VarFileInfo\Translation returns list of available (language, codepage)

# pairs that can be used to retreive string info. We are using only the first pair.

lang, codepage = win32api.GetFileVersionInfo(fname, '\\VarFileInfo\\Translation')[0]

# any other must be of the form \StringfileInfo\%04X%04X\parm_name, middle

# two are language/codepage pair returned from above

strInfo = {}

for propName in propNames:

strInfoPath = u'\\StringFileInfo\\%04X%04X\\%s' % (lang, codepage, propName)

## print str_info

strInfo[propName] = win32api.GetFileVersionInfo(fname, strInfoPath)

props['StringFileInfo'] = strInfo

except:

pass

return props

# =============================================================================

# Shortcuts, start menu

# =============================================================================

def get_special_folder_path(path_name):

"""Return special folder path"""

from win32com.shell import shell, shellcon

for maybe in """

CSIDL_COMMON_STARTMENU CSIDL_STARTMENU CSIDL_COMMON_APPDATA

CSIDL_LOCAL_APPDATA CSIDL_APPDATA CSIDL_COMMON_DESKTOPDIRECTORY

CSIDL_DESKTOPDIRECTORY CSIDL_COMMON_STARTUP CSIDL_STARTUP

CSIDL_COMMON_PROGRAMS CSIDL_PROGRAMS CSIDL_PROGRAM_FILES_COMMON

CSIDL_PROGRAM_FILES CSIDL_FONTS""".split():

if maybe == path_name:

csidl = getattr(shellcon, maybe)

return shell.SHGetSpecialFolderPath(

0, csidl, False

)

raise ValueError(

"%s is an unknown path ID" % (path_name,)

)

def get_winpython_start_menu_folder(current=True):

"""Return WinPython Start menu shortcuts folder"""

if current:

# non-admin install - always goes in this user's start menu.

folder = get_special_folder_path("CSIDL_PROGRAMS")

else:

try:

folder = get_special_folder_path(

"CSIDL_COMMON_PROGRAMS"

)

except OSError:

# No CSIDL_COMMON_PROGRAMS on this platform

folder = get_special_folder_path(

"CSIDL_PROGRAMS"

)

return osp.join(folder, 'WinPython')

def create_winpython_start_menu_folder(current=True):

"""Create WinPython Start menu folder -- remove it if it already exists"""

path = get_winpython_start_menu_folder(current=current)

if osp.isdir(path):

try:

shutil.rmtree(path, onerror=onerror)

except WindowsError:

print(

"Directory %s could not be removed" % path,

file=sys.stderr,

)

else:

os.mkdir(path)

return path

def create_shortcut(

path,

description,

filename,

arguments="",

workdir="",

iconpath="",

iconindex=0,

"""Create Windows shortcut (.lnk file)"""

import pythoncom

from win32com.shell import shell

ilink = pythoncom.CoCreateInstance(

shell.CLSID_ShellLink,

None,

pythoncom.CLSCTX_INPROC_SERVER,

shell.IID_IShellLink,

)

ilink.SetPath(path)

ilink.SetDescription(description)

if arguments:

ilink.SetArguments(arguments)

if workdir:

ilink.SetWorkingDirectory(workdir)

if iconpath or iconindex:

ilink.SetIconLocation(iconpath, iconindex)

# now save it.

ipf = ilink.QueryInterface(pythoncom.IID_IPersistFile)

if not filename.endswith('.lnk'):

filename += '.lnk'

ipf.Save(filename, 0)

# =============================================================================

# Misc.

# =============================================================================

def print_box(text):

"""Print text in a box"""

line0 = "+" + ("-" * (len(text) + 2)) + "+"

line1 = "| " + text + " |"

print(

("\n\n" + "\n".join([line0, line1, line0]) + "\n")

)

def is_python_distribution(path):

"""Return True if path is a Python distribution"""

# XXX: This test could be improved but it seems to be sufficient

return osp.isfile(

osp.join(path, 'python.exe')

) and osp.isdir(osp.join(path, 'Lib', 'site-packages'))

# =============================================================================

# Shell, Python queries

# =============================================================================

def decode_fs_string(string):

"""Convert string from file system charset to unicode"""

charset = sys.getfilesystemencoding()

if charset is None:

charset = locale.getpreferredencoding()

return string.decode(charset)

def exec_shell_cmd(args, path):

"""Execute shell command (*args* is a list of arguments) in *path*"""

# print " ".join(args)

process = subprocess.Popen(

args,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

cwd=path,

shell=True,

)

return decode_fs_string(process.stdout.read())

def exec_run_cmd(args, path=None):

"""run a single command (*args* is a list of arguments) in optional *path*"""

# only applicable to Python-3.5+

# python-3.7+ allows to replace "stdout and stderr ", per "capture_output=True"

if path:

process = subprocess.run(args,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

cwd=path)

else:

process = subprocess.run(args,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE)

return decode_fs_string(process.stdout)

def get_r_version(path):

"""Return version of the R installed in *path*"""

return (

exec_shell_cmd('dir ..\README.R*', path)

.splitlines()[-3]

.split("-")[-1]

)

def get_julia_version(path):

"""Return version of the Julia installed in *path*"""

return (

exec_shell_cmd('julia.exe -v', path)

.splitlines()[0]

.split(" ")[-1]

)

def get_nodejs_version(path):

"""Return version of the Nodejs installed in *path*"""

return exec_shell_cmd('node -v', path).splitlines()[0]

def get_npmjs_version(path):

"""Return version of the Nodejs installed in *path*"""

return exec_shell_cmd('npm -v', path).splitlines()[0]

def get_pandoc_version(path):

"""Return version of the Pandoc executable in *path*"""

return (

exec_shell_cmd('pandoc -v', path)

.splitlines()[0]

.split(" ")[-1]

)

def python_query(cmd, path):

"""Execute Python command using the Python interpreter located in *path*"""

return exec_shell_cmd(

'python -c "%s"' % cmd, path

).splitlines()[0]

def get_python_infos(path):

"""Return (version, architecture) for the Python distribution located in

*path*. The version number is limited to MAJOR.MINOR, the architecture is

an integer: 32 or 64"""

is_64 = python_query(

'import sys; print(sys.maxsize > 2**32)', path

)

arch = {'True': 64, 'False': 32}.get(is_64, None)

ver = python_query(

"import sys; print('%d.%d' % (sys.version_info.major, "

"sys.version_info.minor))",

path,

)

if re.match(r'([0-9]*)\.([0-9]*)', ver) is None:

ver = None

return ver, arch

def get_python_long_version(path):

"""Return long version (X.Y.Z) for the Python distribution located in

*path*"""

ver = python_query(

"import sys; print('%d.%d.%d' % "

"(sys.version_info.major, sys.version_info.minor,"

"sys.version_info.micro))",

path,

)

if (

re.match(r'([0-9]*)\.([0-9]*)\.([0-9]*)', ver)

is None

ver = None

return ver

# =============================================================================

# Patch chebang line (courtesy of Christoph Gohlke)

# =============================================================================

def patch_shebang_line(

fname, pad=b' ', to_movable=True, targetdir=""

"""Remove absolute path to python.exe in shebang lines, or re-add it"""

import re

import sys

import os

target_dir = targetdir # movable option

if to_movable == False:

target_dir = os.path.abspath(os.path.dirname(fname))

target_dir = (

os.path.abspath(os.path.join(target_dir, r'..'))

+ '\\'

)

executable = sys.executable

if sys.version_info[0] == 2:

shebang_line = re.compile(

r"(#!.*pythonw?\.exe)"

) # Python2.7

else:

shebang_line = re.compile(

b"(#!.*pythonw?\.exe)"

) # Python3+

target_dir = target_dir.encode('utf-8')

with open(fname, 'rb') as fh:

initial_content = fh.read()

fh.close

fh = None

content = shebang_line.split(

initial_content, maxsplit=1

)

if len(content) != 3:

return

exe = os.path.basename(content[1][2:])

content[1] = (

b'#!' + target_dir + exe

) # + (pad * (len(content[1]) - len(exe) - 2))

final_content = b''.join(content)

if initial_content == final_content:

return

try:

with open(fname, 'wb') as fo:

fo.write(final_content)

fo.close

fo = None

print("patched", fname)

except Exception:

print("failed to patch", fname)

# =============================================================================

# Patch shebang line in .py files

# =============================================================================

def patch_shebang_line_py(

fname, to_movable=True, targetdir=""

"""Changes shebang line in '.py' file to relative or absolue path"""

import fileinput

import re

import sys

if sys.version_info[0] == 2:

# Python 2.x doesn't create .py files for .exe files. So, Moving

# WinPython doesn't break running executable files.

return

if to_movable:

exec_path = '#!.\python.exe'

else:

exec_path = '#!' + sys.executable

for line in fileinput.input(fname, inplace=True):

if re.match('^#\!.*python\.exe$', line) is not None:

print(exec_path)

else:

print(line, end='')

# =============================================================================

# Patch sourcefile (instead of forking packages)

# =============================================================================

def patch_sourcefile(

fname, in_text, out_text, silent_mode=False

"""Replace a string in a source file"""

import io

if osp.isfile(fname) and not in_text == out_text:

with io.open(fname, 'r') as fh:

content = fh.read()

new_content = content.replace(in_text, out_text)

if not new_content == content:

if not silent_mode:

print(

"patching ",

fname,

"from",

in_text,

"to",

out_text,

)

with io.open(fname, 'wt') as fh:

fh.write(new_content)

# =============================================================================

# Patch sourcelines (instead of forking packages)

# =============================================================================

def patch_sourcelines(

fname,

in_line_start,

out_line,

endline='\n',

silent_mode=False,

"""Replace the middle of lines between in_line_start and endline """

import io

import os.path as osp

if osp.isfile(fname):

with io.open(fname, 'r') as fh:

contents = fh.readlines()

content = "".join(contents)

for l in range(len(contents)):

if contents[l].startswith(in_line_start):

begining, middle = (

in_line_start,

contents[l][len(in_line_start) :],

)

ending = ""

if middle.find(endline) > 0:

ending = endline + endline.join(

middle.split(endline)[1:]

)

middle = middle.split(endline)[0]

middle = out_line

new_line = begining + middle + ending

if not new_line == contents[l]:

if not silent_mode:

print(

"patching ",

fname,

" from\n",

contents[l],

"\nto\n",

new_line,

)

contents[l] = new_line

new_content = "".join(contents)

if not new_content == content:

# if not silent_mode:

# print("patching ", fname, "from", content, "to", new_content)

with io.open(fname, 'wt') as fh:

try:

fh.write(new_content)

except:

print(

"impossible to patch",

fname,

"from",

content,

"to",

new_content,

)

# =============================================================================

# Extract functions

# =============================================================================

def _create_temp_dir():

"""Create a temporary directory and remove it at exit"""

tmpdir = tempfile.mkdtemp(prefix='wppm_')

atexit.register(

lambda path: shutil.rmtree(path, onerror=onerror),

tmpdir,

)

return tmpdir

def extract_exe(fname, targetdir=None, verbose=False):

"""Extract .exe archive to a temporary directory (if targetdir

is None). Return the temporary directory path"""

if targetdir is None:

targetdir = _create_temp_dir()

extract = '7z.exe'

assert is_program_installed(extract), (

"Required program '%s' was not found" % extract

)

bname = osp.basename(fname)

args = ['x', '-o%s' % targetdir, '-aos', bname]

if verbose:

retcode = subprocess.call(

[extract] + args, cwd=osp.dirname(fname)

)

else:

p = subprocess.Popen(

[extract] + args,

cwd=osp.dirname(fname),

stdout=subprocess.PIPE,

)

p.communicate()

p.stdout.close()

retcode = p.returncode

if retcode != 0:

raise RuntimeError(

"Failed to extract %s (return code: %d)"

% (fname, retcode)

)

return targetdir

def extract_archive(fname, targetdir=None, verbose=False):

"""Extract .zip, .exe (considered to be a zip archive) or .tar.gz archive

to a temporary directory (if targetdir is None).

Return the temporary directory path"""

if targetdir is None:

targetdir = _create_temp_dir()

else:

try:

os.mkdir(targetdir)

except:

pass

if osp.splitext(fname)[1] in ('.zip', '.exe'):

obj = zipfile.ZipFile(fname, mode="r")

elif fname.endswith('.tar.gz'):

obj = tarfile.open(fname, mode='r:gz')

else:

raise RuntimeError(

"Unsupported archive filename %s" % fname

)

obj.extractall(path=targetdir)

return targetdir

WININST_PATTERN = r'([a-zA-Z0-9\-\_]*|[a-zA-Z\-\_\.]*)-([0-9\.\-]*[a-z]*[0-9]?)(-Qt-([0-9\.]+))?.(win32|win\-amd64)(-py([0-9\.]+))?(-setup)?\.exe'

# SOURCE_PATTERN defines what an acceptable source package name is

# As of 2014-09-08 :

# - the wheel package format is accepte in source directory

# - the tricky regexp is tuned also to support the odd jolib naming :

# . joblib-0.8.3_r1-py2.py3-none-any.whl,

# . joblib-0.8.3-r1.tar.gz

SOURCE_PATTERN = r'([a-zA-Z0-9\-\_\.]*)-([0-9\.\_]*[a-z]*[\-]?[0-9]*)(\.zip|\.tar\.gz|\-(py[2-7]*|py[2-7]*\.py[2-7]*)\-none\-any\.whl)'

# WHEELBIN_PATTERN defines what an acceptable binary wheel package is

# "cp([0-9]*)" to replace per cp(34) for python3.4

# "win32|win\_amd64" to replace per "win\_amd64" for 64bit

WHEELBIN_PATTERN = r'([a-zA-Z0-9\-\_\.]*)-([0-9\.\_]*[a-z0-9\+]*[0-9]?)-cp([0-9]*)\-[0-9|c|o|n|e|p|m]*\-(win32|win\_amd64)\.whl'

def get_source_package_infos(fname):

"""Return a tuple (name, version) of the Python source package"""

if fname[-4:] == '.whl':

return osp.basename(fname).split("-")[:2]

match = re.match(SOURCE_PATTERN, osp.basename(fname))

if match is not None:

return match.groups()[:2]

def build_wininst(

root,

python_exe=None,

copy_to=None,

architecture=None,

verbose=False,

installer='bdist_wininst',

"""Build wininst installer from Python package located in *root*

and eventually copy it to *copy_to* folder.

Return wininst installer full path."""

if python_exe is None:

python_exe = sys.executable

assert osp.isfile(python_exe)

cmd = [python_exe, 'setup.py', 'build']

if architecture is not None:

archstr = (

'win32' if architecture == 32 else 'win-amd64'

)

cmd += ['--plat-name=%s' % archstr]

cmd += [installer]

# root = a tmp dir in windows\tmp,

if verbose:

subprocess.call(cmd, cwd=root)

else:

p = subprocess.Popen(

cmd,

cwd=root,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

)

p.communicate()

p.stdout.close()

p.stderr.close()

distdir = osp.join(root, 'dist')

if not osp.isdir(distdir):

raise RuntimeError(

"Build failed: see package README file for further"

" details regarding installation requirements.\n\n"

"For more concrete debugging infos, please try to build "

"the package from the command line:\n"

"1. Open a WinPython command prompt\n"

"2. Change working directory to the appropriate folder\n"

"3. Type `python setup.py build install`"

)

pattern = WININST_PATTERN.replace(

r'(win32|win\-amd64)', archstr

)

for distname in os.listdir(distdir):

match = re.match(pattern, distname)

if match is not None:

break

# for wheels (winpython here)

match = re.match(SOURCE_PATTERN, distname)

if match is not None:

break

match = re.match(WHEELBIN_PATTERN, distname)

if match is not None:

break

else:

raise RuntimeError(

"Build failed: not a pure Python package? %s"

% distdir

)

src_fname = osp.join(distdir, distname)

if copy_to is None:

return src_fname

else:

dst_fname = osp.join(copy_to, distname)

shutil.move(src_fname, dst_fname)

if verbose:

print(

(

"Move: %s --> %s"

% (src_fname, (dst_fname))

)

# remove tempo dir 'root' no more needed

shutil.rmtree(root, onerror=onerror)

return dst_fname

def direct_pip_install(

fname,

python_exe=None,

architecture=None,

verbose=False,

install_options=None,

"""Direct install via pip !"""

copy_to = osp.dirname(fname)

if python_exe is None:

python_exe = sys.executable

assert osp.isfile(python_exe)

myroot = os.path.dirname(python_exe)

cmd = [python_exe, '-m', 'pip', 'install']

if install_options:

cmd += install_options # typically ['--no-deps']

print('pip install_options', install_options)

cmd += [fname]

if verbose:

subprocess.call(cmd, cwd=myroot)

else:

p = subprocess.Popen(

cmd,

cwd=myroot,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

)

stdout, stderr = p.communicate()

the_log = "%s" % stdout + "\n %s" % stderr

if (

' not find ' in the_log

or ' not found ' in the_log

print("Failed to Install: \n %s \n" % fname)

print("msg: %s" % the_log)

raise RuntimeError

p.stdout.close()

p.stderr.close()

src_fname = fname

if copy_to is None:

return src_fname

else:

if verbose:

print("Installed %s" % src_fname)

return src_fname

def do_script(

this_script,

python_exe=None,

copy_to=None,

architecture=None,

verbose=False,

install_options=None,

"""Execute a script (get-pip typically)"""

if python_exe is None:

python_exe = sys.executable

myroot = os.path.dirname(python_exe)

# cmd = [python_exe, myroot + r'\Scripts\pip-script.py', 'install']

cmd = [python_exe]

if install_options:

cmd += install_options # typically ['--no-deps']

print('script install_options', install_options)

if this_script:

cmd += [this_script]

# print('build_wheel', myroot, cmd)

print("Executing ", cmd)

if verbose:

subprocess.call(cmd, cwd=myroot)

else:

p = subprocess.Popen(

cmd,

cwd=myroot,

stdout=subprocess.PIPE,

stderr=subprocess.PIPE,

)

p.communicate()

p.stdout.close()

p.stderr.close()

if verbose:

print("Executed " % cmd)

return 'ok'

if __name__ == '__main__':

print_box("Test")

dname = sys.prefix

print((dname + ':', '\n', get_python_infos(dname)))

# dname = r'E:\winpython\sandbox\python-2.7.3'

# print dname+':', '\n', get_python_infos(dname)

tmpdir = r'D:\Tests\winpython_tests'

if not osp.isdir(tmpdir):

os.mkdir(tmpdir)

print(

(

extract_archive(

osp.join(

r'D:\WinP\bd37',

'packages.win-amd64',

'python-3.7.3.amd64.zip',

tmpdir,

)

winpython/winpython/utils.py at master · mcmetrox/winpython · GitHub

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