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utils.py
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845 lines (738 loc) · 27.3 KB
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# -*- coding: utf-8 -*-
#
# Copyright © 2012 Pierre Raybaut
# 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
"""
import os
from pathlib import Path
import subprocess
import re
import tarfile
import zipfile
import tempfile
import shutil
import atexit
import sys
import stat
import locale
import io
import configparser as cp
# Local imports
import winreg
def get_python_executable(path = None):
"""return the python executable"""
my_path = sys.executable if path == None else path # default = current one
my_path = my_path if Path(my_path).is_dir() else str(Path(my_path).parent)
exec_py = str(Path(my_path) / 'python.exe')
exec_pypy = str(Path(my_path) / 'pypy3.exe') # PyPy !
# PyPy >=7.3.6 3.8 aligns to python.exe and Lib\site-packages
python_executable = exec_py if Path(exec_py).is_file() else exec_pypy
return python_executable
def get_site_packages_path(path = None):
"""return the python site-packages"""
my_path = sys.executable if path == None else path # default = current one
my_path = my_path if Path(my_path).is_dir() else str(Path(my_path).parent)
site_py = str(Path(my_path) / 'Lib' / 'site-packages')
site_pypy = str(Path(my_path) / 'site-packages') # PyPy !!
site_packages_path = site_pypy if Path(site_pypy).is_dir() else site_py
return site_packages_path
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, onexc=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
def getFileProperties(fname):
"""
Read all properties of the given file return them as a dictionary.
"""
# from https://stackoverflow.com/questions/580924/how-to-access-a-files-properties-on-windows
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
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(
f"{path_name} is an unknown path ID"
)
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 str(Path(folder) / 'WinPython')
def remove_winpython_start_menu_folder(current=True):
"""Remove WinPython Start menu folder -- remove it if it already exists"""
path = get_winpython_start_menu_folder(current=current)
if Path(path).is_dir():
try:
shutil.rmtree(path, onexc=onerror)
except WindowsError:
print(
f"Directory {path} could not be removed",
file=sys.stderr,
)
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 Path(path).is_dir():
try:
shutil.rmtree(path, onexc=onerror)
except WindowsError:
print(
f"Directory {path} could not be removed",
file=sys.stderr,
)
# create, or re-create !
os.mkdir(path)
return path
def create_shortcut(
path,
description,
filename,
arguments="",
workdir="",
iconpath="",
iconindex=0,
verbose=True,
):
"""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'
if verbose:
print(f'create menu *{filename}*')
try:
ipf.Save(filename, 0)
except:
print ("a fail !")
pass
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
has_exec = Path(get_python_executable(path)).is_file()
has_site = Path(get_site_packages_path(path)).is_dir()
return has_exec and has_site
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,
capture_output=True,
cwd=path, text=True)
#return decode_fs_string(process.stdout)
return process.stdout
else:
process = subprocess.run(args,
capture_output=True,
cwd=path, text=True)
#return decode_fs_string(process.stdout)
return process.stdout
def get_r_version(path):
"""Return version of the R installed in *path*"""
return (
exec_shell_cmd(r'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*"""
the_exe = get_python_executable(path)
# debug2021-09-12
# print(f'"{the_exe}" -c "{cmd}"', ' * ', path)
return exec_shell_cmd(f'"{the_exe}" -c "{cmd}"', path).splitlines()[0]
def python_execmodule(cmd, path):
"""Execute Python command using the Python interpreter located in *path*"""
the_exe = get_python_executable(path)
exec_shell_cmd(f'{the_exe} -m {cmd}', path)
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(f'{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(f'{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
def patch_shebang_line(
fname, pad=b' ', to_movable=True, targetdir=""
):
"""Remove absolute path to python.exe in shebang lines in binary files, 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(
rb"(#!.*pythonw?\.exe)\"?"
) # Python3+
if 'pypy3' in sys.executable:
shebang_line = re.compile(
rb"(#!.*pypy3w?\.exe)\"?"
) # Pypy3+
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)
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 = r'#!.\python.exe'
if 'pypy3' in sys.executable: # PyPy !
exec_path = r'#!.\pypy3.exe'
else:
exec_path = '#!' + sys.executable
for line in fileinput.input(fname, inplace=True):
if re.match(r'^#\!.*python\.exe$', line) is not None:
print(exec_path)
elif re.match(r'^#\!.*pypy3\.exe$', line) is not None:# PyPy !
print(exec_path)
else:
print(line, end='')
def guess_encoding(csv_file):
"""guess the encoding of the given file"""
# UTF_8_BOM = "\xEF\xBB\xBF"
# Python behavior on UTF-16 not great on write, so we drop it
with io.open(csv_file, "rb") as f:
data = f.read(5)
if data.startswith(b"\xEF\xBB\xBF"): # UTF-8 with a "BOM" (normally no BOM in utf-8)
return ["utf-8-sig"]
else: # in Windows, guessing utf-8 doesn't work, so we have to try
try:
with io.open(csv_file, encoding="utf-8") as f:
preview = f.read(222222)
return ["utf-8"]
except:
return [locale.getdefaultlocale()[1], "utf-8"]
def patch_sourcefile(
fname, in_text, out_text, silent_mode=False
):
"""Replace a string in a source file"""
import io
if Path(fname).is_file() and not in_text == out_text:
the_encoding = guess_encoding(fname)[0]
with io.open(fname, 'r', encoding=the_encoding) 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', encoding=the_encoding) as fh:
fh.write(new_content)
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
if Path(fname).is_file():
the_encoding = guess_encoding(fname)[0]
with io.open(fname, 'r', encoding=the_encoding) 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', encoding=the_encoding) as fh:
try:
fh.write(new_content)
except:
print(
"impossible to patch",
fname,
"from",
content,
"to",
new_content,
)
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, onexc=onerror),
tmpdir,
)
return tmpdir
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 Path(fname).suffix in ('.zip', '.exe'):
obj = zipfile.ZipFile(fname, mode="r")
elif fname.endswith('.tar.gz'):
obj = tarfile.open(fname, mode='r:gz')
else:
raise RuntimeError(
f"Unsupported archive filename {fname}"
)
obj.extractall(path=targetdir)
return targetdir
# 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 Path(fname).name.split("-")[:2]
match = re.match(SOURCE_PATTERN, Path(fname).name)
if match is not None:
return match.groups()[:2]
def buildflit_wininst(
root,
python_exe=None,
copy_to=None,
verbose=False,
):
"""Build Wheel from Python package located in *root*
with flit"""
if python_exe is None:
python_exe = sys.executable
assert Path(python_exe).is_file()
cmd = [python_exe, '-m' ,'flit', 'build']
# 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 = str(Path(root) / 'dist')
if not Path(distdir).is_dir():
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 -m filt build`"
)
for distname in os.listdir(distdir):
# 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(
f"Build failed: not a pure Python package? {distdir}"
)
src_fname = str(Path(distdir) / distname)
if copy_to is None:
return src_fname
else:
dst_fname = str(Path(copy_to) / distname)
shutil.move(src_fname, dst_fname)
if verbose:
print(
(
f"Move: {src_fname} --> {dst_fname}"
)
)
# remove tempo dir 'root' no more needed
shutil.rmtree(root, onexc=onerror)
return dst_fname
def direct_pip_install(
fname,
python_exe=None,
verbose=False,
install_options=None,
):
"""Direct install via python -m pip !"""
copy_to = str(Path(fname).parent)
if python_exe is None:
python_exe = sys.executable
assert Path(python_exe).is_file()
myroot = str(Path(python_exe).parent)
cmd = [python_exe, '-m', 'pip', 'install']
if install_options:
cmd += install_options # typically ['--no-deps']
print('python -m 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 = f"{stdout}" + f"\n {stderr}"
if (
' not find ' in the_log
or ' not found ' in the_log
):
print(f"Failed to Install: \n {fname} \n")
print(f"msg: {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(f"Installed {src_fname}")
return src_fname
def do_script(
this_script,
python_exe=None,
copy_to=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'
def columns_width(list_of_lists):
"""return the maximum string length of each column of a list of list"""
if not isinstance(list_of_lists, list):
return [0]
# Transpose the list of lists using zip
transposed_lists = list(zip(*list_of_lists))
# Calculate the maximum width for each column
column_widths = [max(len(str(item)) for item in sublist) for sublist in transposed_lists]
return column_widths
def formatted_list(list_of_list, full=False, max_width=70):
"""format a list_of_list to fix length columns"""
columns_size = columns_width(list_of_list)
nb_columns = len(columns_size)
# normalize each columns to columns_size[col] width, in the limit of max_width
zz = [
list(
line[col].ljust(columns_size[col])[:max_width] for col in range(nb_columns)
)
for line in list_of_list
]
return zz
def normalize(this):
"""apply https://peps.python.org/pep-0503/#normalized-names"""
return re.sub(r"[-_.]+", "-", this).lower()
def get_package_metadata(database, name, update=False, suggested_summary=None):
"""Extract infos (description, url) from the local database"""
# for package.ini safety belt
# Note: we could use the PyPI database but this has been written on
# machine which is not connected to the internet
# we store only normalized names now (PEP 503)
DATA_PATH = str(Path(sys.modules['winpython'].__file__).parent /'data')
db = cp.ConfigParser()
filepath = Path(database) if Path(database).is_absolute() else Path(DATA_PATH) / database
try:
db.read_file(open(str(filepath), encoding = 'utf-8'))
except:
db.read_file(open(str(filepath)))
my_metadata = dict(
description="",
url="https://pypi.org/project/" + name,
)
for key in my_metadata:
# wheel replace '-' per '_' in key
for name2 in (name, normalize(name)):
try:
my_metadata[key] = db.get(name2, key)
break
except (cp.NoSectionError, cp.NoOptionError):
pass
db_desc = my_metadata.get("description")
if my_metadata.get("description") == "" and suggested_summary:
# nothing in package.ini, we look in our installed packages
try:
my_metadata["description"] = (
suggested_summary + "\n"
).splitlines()[0]
except:
pass
if update == True and db_desc == "" and my_metadata["description"] != "":
# we add new findings in our packgages.ini list, if it's required
try:
db[normalize(name)] = {}
db[normalize(name)]["description"] = my_metadata["description"]
with open(str(Path(DATA_PATH) / database), "w", encoding='UTF-8') as configfile:
db.write(configfile)
except:
pass
return my_metadata
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 Path(tmpdir).is_dir():
os.mkdir(tmpdir)
print(
(
extract_archive(
str(Path(r'D:\WinP\bd37') / 'packages.win-amd64' /
'python-3.7.3.amd64.zip'),
tmpdir,
)
)
)