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from setuptools import Command
from setuptools.archive_util import unpack_archive
from distutils import log, dir_util
import os, pkg_resources
class install_egg_info(Command):
"""Install an .egg-info directory for the package"""
description = "Install an .egg-info directory for the package"
user_options = [
('install-dir=', 'd', "directory to install to"),
]
def initialize_options(self):
self.install_dir = None
def finalize_options(self):
self.set_undefined_options('install_lib',('install_dir','install_dir'))
ei_cmd = self.get_finalized_command("egg_info")
basename = pkg_resources.Distribution(
None, None, ei_cmd.egg_name, ei_cmd.egg_version
).egg_name()+'.egg-info'
self.source = ei_cmd.egg_info
self.target = os.path.join(self.install_dir, basename)
self.outputs = [self.target]
def run(self):
self.run_command('egg_info')
target = self.target
if os.path.isdir(self.target) and not os.path.islink(self.target):
dir_util.remove_tree(self.target, dry_run=self.dry_run)
elif os.path.exists(self.target):
self.execute(os.unlink,(self.target,),"Removing "+self.target)
if not self.dry_run:
pkg_resources.ensure_directory(self.target)
self.execute(self.copytree, (),
"Copying %s to %s" % (self.source, self.target)
)
self.install_namespaces()
def get_outputs(self):
return self.outputs
def copytree(self):
# Copy the .egg-info tree to site-packages
def skimmer(src,dst):
# filter out source-control directories; note that 'src' is always
# a '/'-separated path, regardless of platform. 'dst' is a
# platform-specific path.
for skip in '.svn/','CVS/':
if src.startswith(skip) or '/'+skip in src:
return None
self.outputs.append(dst)
log.debug("Copying %s to %s", src, dst)
return dst
unpack_archive(self.source, self.target, skimmer)
def install_namespaces(self):
nsp = self._get_all_ns_packages()
if not nsp: return
filename,ext = os.path.splitext(self.target)
filename += '-nspkg.pth'; self.outputs.append(filename)
log.info("Installing %s",filename)
if not self.dry_run:
f = open(filename,'wt')
for pkg in nsp:
# ensure pkg is not a unicode string under Python 2.7
pkg = str(pkg)
pth = tuple(pkg.split('.'))
trailer = '\n'
if '.' in pkg:
trailer = (
"; m and setattr(sys.modules[%r], %r, m)\n"
% ('.'.join(pth[:-1]), pth[-1])
)
f.write(
"import sys,types,os; "
"p = os.path.join(sys._getframe(1).f_locals['sitedir'], "
"*%(pth)r); "
"ie = os.path.exists(os.path.join(p,'__init__.py')); "
"m = not ie and "
"sys.modules.setdefault(%(pkg)r,types.ModuleType(%(pkg)r)); "
"mp = (m or []) and m.__dict__.setdefault('__path__',[]); "
"(p not in mp) and mp.append(p)%(trailer)s"
% locals()
)
f.close()
def _get_all_ns_packages(self):
nsp = {}
for pkg in self.distribution.namespace_packages or []:
pkg = pkg.split('.')
while pkg:
nsp['.'.join(pkg)] = 1
pkg.pop()
nsp=list(nsp)
nsp.sort() # set up shorter names first
return nsp
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