Mercurial > repos > guerler > springsuite

comparison planemo/lib/python3.7/site-packages/setuptools/namespaces.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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0:d30785e31577 1:56ad4e20f292
1 import os
2 from distutils import log
3 import itertools
4
5 from setuptools.extern.six.moves import map
6
7
8 flatten = itertools.chain.from_iterable
9
10
11 class Installer:
12
13 nspkg_ext = '-nspkg.pth'
14
15 def install_namespaces(self):
16 nsp = self._get_all_ns_packages()
17 if not nsp:
18 return
19 filename, ext = os.path.splitext(self._get_target())
20 filename += self.nspkg_ext
21 self.outputs.append(filename)
22 log.info("Installing %s", filename)
23 lines = map(self._gen_nspkg_line, nsp)
24
25 if self.dry_run:
26 # always generate the lines, even in dry run
27 list(lines)
28 return
29
30 with open(filename, 'wt') as f:
31 f.writelines(lines)
32
33 def uninstall_namespaces(self):
34 filename, ext = os.path.splitext(self._get_target())
35 filename += self.nspkg_ext
36 if not os.path.exists(filename):
37 return
38 log.info("Removing %s", filename)
39 os.remove(filename)
40
41 def _get_target(self):
42 return self.target
43
44 _nspkg_tmpl = (
45 "import sys, types, os",
46 "has_mfs = sys.version_info > (3, 5)",
47 "p = os.path.join(%(root)s, *%(pth)r)",
48 "importlib = has_mfs and __import__('importlib.util')",
49 "has_mfs and __import__('importlib.machinery')",
50 "m = has_mfs and "
51 "sys.modules.setdefault(%(pkg)r, "
52 "importlib.util.module_from_spec("
53 "importlib.machinery.PathFinder.find_spec(%(pkg)r, "
54 "[os.path.dirname(p)])))",
55 "m = m or "
56 "sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))",
57 "mp = (m or []) and m.__dict__.setdefault('__path__',[])",
58 "(p not in mp) and mp.append(p)",
59 )
60 "lines for the namespace installer"
61
62 _nspkg_tmpl_multi = (
63 'm and setattr(sys.modules[%(parent)r], %(child)r, m)',
64 )
65 "additional line(s) when a parent package is indicated"
66
67 def _get_root(self):
68 return "sys._getframe(1).f_locals['sitedir']"
69
70 def _gen_nspkg_line(self, pkg):
71 # ensure pkg is not a unicode string under Python 2.7
72 pkg = str(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