def fix_entry_points(*distribution_names):
"""Re-make all entry_points for the given distributions. This is a workaround for
the fact that conda doesn't support GUI scripts. The filenames on disk remain the
same, so conda can still uninstall cleanly - we're just fixing the files in-place"""
# There are many places scripts can go, but we're in conda so the main scripts dir
# at sysconfig.get_path('scripts') is the only possibility for us:
maker = ScriptMaker(None, sysconfig.get_path('scripts'))
maker.clobber = True # Overwrite existing scripts
maker.variants = {''} # Don't make variants with Python major.minor suffixes
for name in distribution_names:
# Get the script specs and format them how Scriptmaker wants them
distribution = importlib_metadata.Distribution.from_name(name)
# I've seen enough bugs with entry_points in conda that I feel the need to
# clobber its console_scripts too, even though they are officially supported:
console_scripts = [
f'{e.name} = {e.value}'
for e in distribution.entry_points
if e.group == 'console_scripts'
]
gui_scripts = [
f'{e.name} = {e.value}'
for e in distribution.entry_points
if e.group == 'gui_scripts'
]
# Make 'em:
maker.make_multiple(console_scripts)
maker.make_multiple(gui_scripts, {'gui': True})
def _create_console_entry_point(self, name, value, to_folder):
result = []
from distlib.scripts import ScriptMaker
maker = ScriptMaker(None, str(to_folder))
maker.clobber = True # overwrite
maker.variants = {"", "X", "X.Y"} # create all variants
maker.set_mode = True # ensure they are executable
maker.executable = str(self._creator.exe)
specification = "{} = {}".format(name, value)
new_files = maker.make(specification)
result.extend(Path(i) for i in new_files)
return result
def _create_console_entry_point(self, name, value, to_folder, version_info):
result = []
maker = ScriptMaker(None, str(to_folder))
maker.clobber = True # overwrite
maker.variants = {""} # set within patch_distlib_correct_variants
maker.set_mode = True # ensure they are executable
# calling private until https://bitbucket.org/pypa/distlib/issues/135/expose-_enquote_executable-as-public
maker.executable = _enquote_executable(str(self._creator.exe))
specification = "{} = {}".format(name, value)
with self.patch_distlib_correct_variants(version_info, maker):
new_files = maker.make(specification)
result.extend(Path(i) for i in new_files)
return result
def _create_console_entry_point(self, name, value, to_folder):
result = []
if IS_WIN:
# windows doesn't support simple script files, so fallback to more complicated exe generator
from distlib.scripts import ScriptMaker
maker = ScriptMaker(None, str(to_folder))
maker.clobber = True # overwrite
maker.variants = {"", "X", "X.Y"} # create all variants
maker.set_mode = True # ensure they are executable
maker.executable = str(self._creator.exe)
specification = "{} = {}".format(name, value)
new_files = maker.make(specification)
result.extend(Path(i) for i in new_files)
else:
module, func = value.split(":")
content = (
dedent(
"""
#!{0}
# -*- coding: utf-8 -*-
import re
import sys
from {1} import {2}
if __name__ == "__main__":
sys.argv[0] = re.sub(r"(-script.pyw?|.exe)?$", "", sys.argv[0])
sys.exit({2}())
"""
)
.lstrip()
.format(self._creator.exe, module, func)
)
version = self._creator.interpreter.version_info
for new_name in (
name,
"{}{}".format(name, version.major),
"{}-{}.{}".format(name, version.major, version.minor),
):
exe = to_folder / new_name
exe.write_text(content, encoding="utf-8")
make_exe(exe)
result.append(exe)
return result
def create_production_scripts(self, tool, venv_session):
"""Create Rez production used binary scripts
The binary script will be executed with Python interpreter flag -E,
which will ignore all PYTHON* env vars, e.g. PYTHONPATH and PYTHONHOME.
"""
_log.info("Generating production scripts..")
site_packages = venv_session.creator.purelib
bin_path = venv_session.creator.bin_dir
if tool.edit:
egg_link = site_packages / ("%s.egg-link" % tool.name)
if not egg_link.is_file():
_log.error("Tool %r installed in edit mode, but unable "
"to find egg-link for generating production "
"scripts from source. File not exists: %s" %
(tool.name, egg_link))
return
with open(str(egg_link), "r") as f:
package_location = f.readline().strip()
path = [str(package_location)]
else:
path = [str(site_packages)]
dists = Distribution.discover(name=tool.name, path=path)
specifications = {
ep.name: "{ep.name} = {ep.value}".format(ep=ep)
for dist in dists for ep in dist.entry_points
if ep.group == "console_scripts"
}
# delete bin files written into virtualenv
# this also avoided naming conflict between script 'rez' and dir 'rez'
for script_name in specifications.keys():
script_path = bin_path / script_name
if script_path.is_file():
os.remove(str(script_path))
venv_name = tool.name if tool.isolation else "rez"
prod_bin_path = self._revision.production_bin_dir(venv_name)
makedirs(prod_bin_path)
maker = ScriptMaker(source_dir=None, target_dir=str(prod_bin_path))
maker.executable = str(venv_session.creator.exe)
# Align with wheel
#
# Ensure we don't generate any variants for scripts because this is
# almost never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {""}
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# This is required because otherwise distlib creates scripts that are
# not executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
if self._rez_in_edit:
# Allow pre-caching rez_bin_path on script entry if environ var
# `REZUP_EDIT_IN_PRODUCTION` is set with non-empty value.
# See https://github.com/davidlatwe/rezup/pull/56
maker.script_template = r'''# -*- coding: utf-8 -*-
import re
import os
import sys
from %(module)s import %(import_name)s
if os.getenv("REZUP_EDIT_IN_PRODUCTION"):
from rez.system import system
setattr(system, 'rez_bin_path', r'{rez_bin_path}')
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(%(func)s())
'''.format(rez_bin_path=str(prod_bin_path))
scripts = maker.make_multiple(
specifications=specifications.values(),
options=dict(interpreter_args=list(tool.flags)))
return scripts
def move_wheel_files(name, req, wheeldir, scheme, pycompile=True):
"""Install a wheel extracted in wheeldir according to the provided scheme"""
if root_is_purelib(name, wheeldir):
lib_dir = scheme['purelib']
else:
lib_dir = scheme['platlib']
info_dir = []
data_dirs = []
source = wheeldir.rstrip(os.path.sep) + os.path.sep
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {}
changed = set()
generated = []
# Compile all of the pyc files that we're going to be installing
if pycompile:
with captured_output('stdout') as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
compileall.compile_dir(source, force=True, quiet=True)
logger.debug(stdout.getvalue())
def normpath(src, p):
return os.path.relpath(src, p).replace(os.path.sep, '/')
def record_installed(srcfile, destfile, modified=False):
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = normpath(srcfile, wheeldir)
newpath = normpath(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(destfile)
def clobber(source, dest, is_base, fixer=None, filter=None):
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
continue
for s in subdirs:
destsubdir = os.path.join(dest, basedir, s)
if is_base and basedir == '' and destsubdir.endswith('.data'):
data_dirs.append(s)
continue
elif (is_base and
s.endswith('.dist-info') and
canonicalize_name(s).startswith(
canonicalize_name(req.name))):
assert not info_dir, ('Multiple .dist-info directories: ' +
destsubdir + ', ' +
', '.join(info_dir))
info_dir.append(destsubdir)
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (
st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(source, lib_dir, True)
assert info_dir, "%s .dist-info directory not found" % req
# Get the defined entry points
ep_file = os.path.join(info_dir[0], 'entry_points.txt')
console, gui = get_entrypoints(ep_file)
def is_entrypoint_wrapper(name):
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
source = os.path.join(wheeldir, datadir, subdir)
dest = scheme[subdir]
clobber(source, dest, False, fixer=fixer, filter=filter)
maker = ScriptMaker(None, scheme['scripts'])
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = set(('', ))
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
# Simplify the script and fix the fact that the default script swallows
# every single stack trace.
# See https://bitbucket.org/pypa/distlib/issue/34/
# See https://bitbucket.org/pypa/distlib/issue/33/
def _get_script_text(entry):
if entry.suffix is None:
raise CricError(
"Invalid script entry point: %s for req: %s - A callable "
"suffix is required. Cf https://packaging.python.org/en/"
"latest/distributing.html#console-scripts for more "
"information." % (entry, req)
)
return maker.script_template % {
"module": entry.prefix,
"import_name": entry.suffix.split(".")[0],
"func": entry.suffix,
}
maker._get_script_text = _get_script_text
maker.script_template = """# -*- coding: utf-8 -*-
import re
import sys
from %(module)s import %(import_name)s
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
sys.exit(%(func)s())
"""
# Special case pip and setuptools to generate versioned wrappers
#
# The issue is that some projects (specifically, pip and setuptools) use
# code in setup.py to create "versioned" entry points - pip2.7 on Python
# 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
# the wheel metadata at build time, and so if the wheel is installed with
# a *different* version of Python the entry points will be wrong. The
# correct fix for this is to enhance the metadata to be able to describe
# such versioned entry points, but that won't happen till Metadata 2.0 is
# available.
# In the meantime, projects using versioned entry points will either have
# incorrect versioned entry points, or they will not be able to distribute
# "universal" wheels (i.e., they will need a wheel per Python version).
#
# Because setuptools and pip are bundled with _ensurepip and virtualenv,
# we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
# override the versioned entry points in the wheel and generate the
# correct ones. This code is purely a short-term measure until Metadata 2.0
# is available.
#
# To add the level of hack in this section of code, in order to support
# ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
# variable which will control which version scripts get installed.
#
# ENSUREPIP_OPTIONS=altinstall
# - Only pipX.Y and easy_install-X.Y will be generated and installed
# ENSUREPIP_OPTIONS=install
# - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
# that this option is technically if ENSUREPIP_OPTIONS is set and is
# not altinstall
# DEFAULT
# - The default behavior is to install pip, pipX, pipX.Y, easy_install
# and easy_install-X.Y.
pip_script = console.pop('pip', None)
if pip_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'pip = ' + pip_script
generated.extend(maker.make(spec))
if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
spec = 'pip%s = %s' % (sys.version[:1], pip_script)
generated.extend(maker.make(spec))
spec = 'pip%s = %s' % (sys.version[:3], pip_script)
generated.extend(maker.make(spec))
# Delete any other versioned pip entry points
pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
for k in pip_ep:
del console[k]
easy_install_script = console.pop('easy_install', None)
if easy_install_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'easy_install = ' + easy_install_script
generated.extend(maker.make(spec))
spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
generated.extend(maker.make(spec))
# Delete any other versioned easy_install entry points
easy_install_ep = [
k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
]
for k in easy_install_ep:
del console[k]
# Generate the console and GUI entry points specified in the wheel
if len(console) > 0:
generated.extend(
maker.make_multiple(['%s = %s' % kv for kv in console.items()])
)
if len(gui) > 0:
generated.extend(
maker.make_multiple(
['%s = %s' % kv for kv in gui.items()],
{'gui': True}
)
)
# Record pip as the installer
installer = os.path.join(info_dir[0], 'INSTALLER')
temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
with open(temp_installer, 'wb') as installer_file:
installer_file.write(b'pip\n')
shutil.move(temp_installer, installer)
generated.append(installer)
# Record details of all files installed
record = os.path.join(info_dir[0], 'RECORD')
temp_record = os.path.join(info_dir[0], 'RECORD.pip')
with open_for_csv(record, 'r') as record_in:
with open_for_csv(temp_record, 'w+') as record_out:
reader = csv.reader(record_in)
writer = csv.writer(record_out)
for row in reader:
row[0] = installed.pop(row[0], row[0])
if row[0] in changed:
row[1], row[2] = rehash(row[0])
writer.writerow(row)
for f in generated:
h, l = rehash(f)
writer.writerow((normpath(f, lib_dir), h, l))
for f in installed:
writer.writerow((installed[f], '', ''))
shutil.move(temp_record, record)
