cpython/Lib/packaging/command/install_distinfo.py

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"""Create the PEP 376-compliant .dist-info directory."""
# Forked from the former install_egg_info command by Josip Djolonga
import csv
import os
import re
import hashlib
from packaging.command.cmd import Command
from packaging import logger
from shutil import rmtree
class install_distinfo(Command):
description = 'create a .dist-info directory for the distribution'
user_options = [
('distinfo-dir=', None,
"directory where the the .dist-info directory will be installed"),
('installer=', None,
"the name of the installer"),
('requested', None,
"generate a REQUESTED file"),
('no-requested', None,
"do not generate a REQUESTED file"),
('no-record', None,
"do not generate a RECORD file"),
('no-resources', None,
"do not generate a RESSOURCES list installed file")
]
boolean_options = ['requested', 'no-record', 'no-resources']
negative_opt = {'no-requested': 'requested'}
def initialize_options(self):
self.distinfo_dir = None
self.installer = None
self.requested = None
self.no_record = None
self.no_resources = None
def finalize_options(self):
self.set_undefined_options('install_dist',
'installer', 'requested', 'no_record')
self.set_undefined_options('install_lib',
('install_dir', 'distinfo_dir'))
if self.installer is None:
# FIXME distutils or packaging?
# + document default in the option help text above and in install
self.installer = 'distutils'
if self.requested is None:
self.requested = True
if self.no_record is None:
self.no_record = False
if self.no_resources is None:
self.no_resources = False
metadata = self.distribution.metadata
basename = "%s-%s.dist-info" % (
to_filename(safe_name(metadata['Name'])),
to_filename(safe_version(metadata['Version'])))
self.distinfo_dir = os.path.join(self.distinfo_dir, basename)
self.outputs = []
def run(self):
# FIXME dry-run should be used at a finer level, so that people get
# useful logging output and can have an idea of what the command would
# have done
if not self.dry_run:
target = self.distinfo_dir
if os.path.isdir(target) and not os.path.islink(target):
rmtree(target)
elif os.path.exists(target):
self.execute(os.unlink, (self.distinfo_dir,),
"removing " + target)
self.execute(os.makedirs, (target,), "creating " + target)
metadata_path = os.path.join(self.distinfo_dir, 'METADATA')
logger.info('creating %s', metadata_path)
self.distribution.metadata.write(metadata_path)
self.outputs.append(metadata_path)
installer_path = os.path.join(self.distinfo_dir, 'INSTALLER')
logger.info('creating %s', installer_path)
with open(installer_path, 'w') as f:
f.write(self.installer)
self.outputs.append(installer_path)
if self.requested:
requested_path = os.path.join(self.distinfo_dir, 'REQUESTED')
logger.info('creating %s', requested_path)
open(requested_path, 'wb').close()
self.outputs.append(requested_path)
if not self.no_resources:
install_data = self.get_finalized_command('install_data')
if install_data.get_resources_out() != []:
resources_path = os.path.join(self.distinfo_dir,
'RESOURCES')
logger.info('creating %s', resources_path)
with open(resources_path, 'wb') as f:
writer = csv.writer(f, delimiter=',',
lineterminator='\n',
quotechar='"')
for tuple in install_data.get_resources_out():
writer.writerow(tuple)
self.outputs.append(resources_path)
if not self.no_record:
record_path = os.path.join(self.distinfo_dir, 'RECORD')
logger.info('creating %s', record_path)
with open(record_path, 'w', encoding='utf-8') as f:
writer = csv.writer(f, delimiter=',',
lineterminator='\n',
quotechar='"')
install = self.get_finalized_command('install_dist')
for fpath in install.get_outputs():
if fpath.endswith('.pyc') or fpath.endswith('.pyo'):
# do not put size and md5 hash, as in PEP-376
writer.writerow((fpath, '', ''))
else:
size = os.path.getsize(fpath)
with open(fpath, 'rb') as fp:
hash = hashlib.md5()
hash.update(fp.read())
md5sum = hash.hexdigest()
writer.writerow((fpath, md5sum, size))
# add the RECORD file itself
writer.writerow((record_path, '', ''))
self.outputs.append(record_path)
def get_outputs(self):
return self.outputs
# The following functions are taken from setuptools' pkg_resources module.
def safe_name(name):
"""Convert an arbitrary string to a standard distribution name
Any runs of non-alphanumeric/. characters are replaced with a single '-'.
"""
return re.sub('[^A-Za-z0-9.]+', '-', name)
def safe_version(version):
"""Convert an arbitrary string to a standard version string
Spaces become dots, and all other non-alphanumeric characters become
dashes, with runs of multiple dashes condensed to a single dash.
"""
version = version.replace(' ', '.')
return re.sub('[^A-Za-z0-9.]+', '-', version)
def to_filename(name):
"""Convert a project or version name to its filename-escaped form
Any '-' characters are currently replaced with '_'.
"""
return name.replace('-', '_')