Mercurial > repos > shellac > sam_consensus_v3
comparison env/lib/python3.9/site-packages/setuptools/namespaces.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
| author | shellac |
|---|---|
| date | Mon, 22 Mar 2021 18:12:50 +0000 |
| parents | |
| children |
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| -1:000000000000 | 0:4f3585e2f14b |
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| 1 import os | |
| 2 from distutils import log | |
| 3 import itertools | |
| 4 | |
| 5 | |
| 6 flatten = itertools.chain.from_iterable | |
| 7 | |
| 8 | |
| 9 class Installer: | |
| 10 | |
| 11 nspkg_ext = '-nspkg.pth' | |
| 12 | |
| 13 def install_namespaces(self): | |
| 14 nsp = self._get_all_ns_packages() | |
| 15 if not nsp: | |
| 16 return | |
| 17 filename, ext = os.path.splitext(self._get_target()) | |
| 18 filename += self.nspkg_ext | |
| 19 self.outputs.append(filename) | |
| 20 log.info("Installing %s", filename) | |
| 21 lines = map(self._gen_nspkg_line, nsp) | |
| 22 | |
| 23 if self.dry_run: | |
| 24 # always generate the lines, even in dry run | |
| 25 list(lines) | |
| 26 return | |
| 27 | |
| 28 with open(filename, 'wt') as f: | |
| 29 f.writelines(lines) | |
| 30 | |
| 31 def uninstall_namespaces(self): | |
| 32 filename, ext = os.path.splitext(self._get_target()) | |
| 33 filename += self.nspkg_ext | |
| 34 if not os.path.exists(filename): | |
| 35 return | |
| 36 log.info("Removing %s", filename) | |
| 37 os.remove(filename) | |
| 38 | |
| 39 def _get_target(self): | |
| 40 return self.target | |
| 41 | |
| 42 _nspkg_tmpl = ( | |
| 43 "import sys, types, os", | |
| 44 "has_mfs = sys.version_info > (3, 5)", | |
| 45 "p = os.path.join(%(root)s, *%(pth)r)", | |
| 46 "importlib = has_mfs and __import__('importlib.util')", | |
| 47 "has_mfs and __import__('importlib.machinery')", | |
| 48 ( | |
| 49 "m = has_mfs and " | |
| 50 "sys.modules.setdefault(%(pkg)r, " | |
| 51 "importlib.util.module_from_spec(" | |
| 52 "importlib.machinery.PathFinder.find_spec(%(pkg)r, " | |
| 53 "[os.path.dirname(p)])))" | |
| 54 ), | |
| 55 ( | |
| 56 "m = m or " | |
| 57 "sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))" | |
| 58 ), | |
| 59 "mp = (m or []) and m.__dict__.setdefault('__path__',[])", | |
| 60 "(p not in mp) and mp.append(p)", | |
| 61 ) | |
| 62 "lines for the namespace installer" | |
| 63 | |
| 64 _nspkg_tmpl_multi = ( | |
| 65 'm and setattr(sys.modules[%(parent)r], %(child)r, m)', | |
| 66 ) | |
| 67 "additional line(s) when a parent package is indicated" | |
| 68 | |
| 69 def _get_root(self): | |
| 70 return "sys._getframe(1).f_locals['sitedir']" | |
| 71 | |
| 72 def _gen_nspkg_line(self, pkg): | |
| 73 pth = tuple(pkg.split('.')) | |
| 74 root = self._get_root() | |
| 75 tmpl_lines = self._nspkg_tmpl | |
| 76 parent, sep, child = pkg.rpartition('.') | |
| 77 if parent: | |
| 78 tmpl_lines += self._nspkg_tmpl_multi | |
| 79 return ';'.join(tmpl_lines) % locals() + '\n' | |
| 80 | |
| 81 def _get_all_ns_packages(self): | |
| 82 """Return sorted list of all package namespaces""" | |
| 83 pkgs = self.distribution.namespace_packages or [] | |
| 84 return sorted(flatten(map(self._pkg_names, pkgs))) | |
| 85 | |
| 86 @staticmethod | |
| 87 def _pkg_names(pkg): | |
| 88 """ | |
| 89 Given a namespace package, yield the components of that | |
| 90 package. | |
| 91 | |
| 92 >>> names = Installer._pkg_names('a.b.c') | |
| 93 >>> set(names) == set(['a', 'a.b', 'a.b.c']) | |
| 94 True | |
| 95 """ | |
| 96 parts = pkg.split('.') | |
| 97 while parts: | |
| 98 yield '.'.join(parts) | |
| 99 parts.pop() | |
| 100 | |
| 101 | |
| 102 class DevelopInstaller(Installer): | |
| 103 def _get_root(self): | |
| 104 return repr(str(self.egg_path)) | |
| 105 | |
| 106 def _get_target(self): | |
| 107 return self.egg_link |