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author | Haoran S. Diao (刁浩然) <0@hairydiode.xyz> | 2023-07-05 04:53:17 -0700 |
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committer | Haoran S. Diao (刁浩然) <0@hairydiode.xyz> | 2023-07-05 04:53:17 -0700 |
commit | 7cd46f6842cc0e0c8279b1f1607d9ffb4acb9102 (patch) | |
tree | e4489aeaa83e3f944d70914689c4a02adb39a52f /e/lib/python3.11/site-packages/setuptools/namespaces.py |
initial commit, includes venv
Diffstat (limited to 'e/lib/python3.11/site-packages/setuptools/namespaces.py')
-rw-r--r-- | e/lib/python3.11/site-packages/setuptools/namespaces.py | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/e/lib/python3.11/site-packages/setuptools/namespaces.py b/e/lib/python3.11/site-packages/setuptools/namespaces.py new file mode 100644 index 0000000..44939e1 --- /dev/null +++ b/e/lib/python3.11/site-packages/setuptools/namespaces.py @@ -0,0 +1,107 @@ +import os +from distutils import log +import itertools + + +flatten = itertools.chain.from_iterable + + +class Installer: + + nspkg_ext = '-nspkg.pth' + + def install_namespaces(self): + nsp = self._get_all_ns_packages() + if not nsp: + return + filename, ext = os.path.splitext(self._get_target()) + filename += self.nspkg_ext + self.outputs.append(filename) + log.info("Installing %s", filename) + lines = map(self._gen_nspkg_line, nsp) + + if self.dry_run: + # always generate the lines, even in dry run + list(lines) + return + + with open(filename, 'wt') as f: + f.writelines(lines) + + def uninstall_namespaces(self): + filename, ext = os.path.splitext(self._get_target()) + filename += self.nspkg_ext + if not os.path.exists(filename): + return + log.info("Removing %s", filename) + os.remove(filename) + + def _get_target(self): + return self.target + + _nspkg_tmpl = ( + "import sys, types, os", + "has_mfs = sys.version_info > (3, 5)", + "p = os.path.join(%(root)s, *%(pth)r)", + "importlib = has_mfs and __import__('importlib.util')", + "has_mfs and __import__('importlib.machinery')", + ( + "m = has_mfs and " + "sys.modules.setdefault(%(pkg)r, " + "importlib.util.module_from_spec(" + "importlib.machinery.PathFinder.find_spec(%(pkg)r, " + "[os.path.dirname(p)])))" + ), + ( + "m = m or " + "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)", + ) + "lines for the namespace installer" + + _nspkg_tmpl_multi = ( + 'm and setattr(sys.modules[%(parent)r], %(child)r, m)', + ) + "additional line(s) when a parent package is indicated" + + def _get_root(self): + return "sys._getframe(1).f_locals['sitedir']" + + def _gen_nspkg_line(self, pkg): + pth = tuple(pkg.split('.')) + root = self._get_root() + tmpl_lines = self._nspkg_tmpl + parent, sep, child = pkg.rpartition('.') + if parent: + tmpl_lines += self._nspkg_tmpl_multi + return ';'.join(tmpl_lines) % locals() + '\n' + + def _get_all_ns_packages(self): + """Return sorted list of all package namespaces""" + pkgs = self.distribution.namespace_packages or [] + return sorted(flatten(map(self._pkg_names, pkgs))) + + @staticmethod + def _pkg_names(pkg): + """ + Given a namespace package, yield the components of that + package. + + >>> names = Installer._pkg_names('a.b.c') + >>> set(names) == set(['a', 'a.b', 'a.b.c']) + True + """ + parts = pkg.split('.') + while parts: + yield '.'.join(parts) + parts.pop() + + +class DevelopInstaller(Installer): + def _get_root(self): + return repr(str(self.egg_path)) + + def _get_target(self): + return self.egg_link |