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comparison lib/python3.8/site-packages/setuptools/command/install.py @ 1:64071f2a4cf0 draft default tip

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author guerler
date Mon, 27 Jul 2020 03:55:49 -0400
parents 9e54283cc701
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0:9e54283cc701 1:64071f2a4cf0
1 from distutils.errors import DistutilsArgError
2 import inspect
3 import glob
4 import warnings
5 import platform
6 import distutils.command.install as orig
7
8 import setuptools
9
10 # Prior to numpy 1.9, NumPy relies on the '_install' name, so provide it for
11 # now. See https://github.com/pypa/setuptools/issues/199/
12 _install = orig.install
13
14
15 class install(orig.install):
16 """Use easy_install to install the package, w/dependencies"""
17
18 user_options = orig.install.user_options + [
19 ('old-and-unmanageable', None, "Try not to use this!"),
20 ('single-version-externally-managed', None,
21 "used by system package builders to create 'flat' eggs"),
22 ]
23 boolean_options = orig.install.boolean_options + [
24 'old-and-unmanageable', 'single-version-externally-managed',
25 ]
26 new_commands = [
27 ('install_egg_info', lambda self: True),
28 ('install_scripts', lambda self: True),
29 ]
30 _nc = dict(new_commands)
31
32 def initialize_options(self):
33 orig.install.initialize_options(self)
34 self.old_and_unmanageable = None
35 self.single_version_externally_managed = None
36
37 def finalize_options(self):
38 orig.install.finalize_options(self)
39 if self.root:
40 self.single_version_externally_managed = True
41 elif self.single_version_externally_managed:
42 if not self.root and not self.record:
43 raise DistutilsArgError(
44 "You must specify --record or --root when building system"
45 " packages"
46 )
47
48 def handle_extra_path(self):
49 if self.root or self.single_version_externally_managed:
50 # explicit backward-compatibility mode, allow extra_path to work
51 return orig.install.handle_extra_path(self)
52
53 # Ignore extra_path when installing an egg (or being run by another
54 # command without --root or --single-version-externally-managed
55 self.path_file = None
56 self.extra_dirs = ''
57
58 def run(self):
59 # Explicit request for old-style install? Just do it
60 if self.old_and_unmanageable or self.single_version_externally_managed:
61 return orig.install.run(self)
62
63 if not self._called_from_setup(inspect.currentframe()):
64 # Run in backward-compatibility mode to support bdist_* commands.
65 orig.install.run(self)
66 else:
67 self.do_egg_install()
68
69 @staticmethod
70 def _called_from_setup(run_frame):
71 """
72 Attempt to detect whether run() was called from setup() or by another
73 command. If called by setup(), the parent caller will be the
74 'run_command' method in 'distutils.dist', and *its* caller will be
75 the 'run_commands' method. If called any other way, the
76 immediate caller *might* be 'run_command', but it won't have been
77 called by 'run_commands'. Return True in that case or if a call stack
78 is unavailable. Return False otherwise.
79 """
80 if run_frame is None:
81 msg = "Call stack not available. bdist_* commands may fail."
82 warnings.warn(msg)
83 if platform.python_implementation() == 'IronPython':
84 msg = "For best results, pass -X:Frames to enable call stack."
85 warnings.warn(msg)
86 return True
87 res = inspect.getouterframes(run_frame)[2]
88 caller, = res[:1]
89 info = inspect.getframeinfo(caller)
90 caller_module = caller.f_globals.get('__name__', '')
91 return (
92 caller_module == 'distutils.dist'
93 and info.function == 'run_commands'
94 )
95
96 def do_egg_install(self):
97
98 easy_install = self.distribution.get_command_class('easy_install')
99
100 cmd = easy_install(
101 self.distribution, args="x", root=self.root, record=self.record,
102 )
103 cmd.ensure_finalized() # finalize before bdist_egg munges install cmd
104 cmd.always_copy_from = '.' # make sure local-dir eggs get installed
105
106 # pick up setup-dir .egg files only: no .egg-info
107 cmd.package_index.scan(glob.glob('*.egg'))
108
109 self.run_command('bdist_egg')
110 args = [self.distribution.get_command_obj('bdist_egg').egg_output]
111
112 if setuptools.bootstrap_install_from:
113 # Bootstrap self-installation of setuptools
114 args.insert(0, setuptools.bootstrap_install_from)
115
116 cmd.args = args
117 cmd.run(show_deprecation=False)
118 setuptools.bootstrap_install_from = None
119
120
121 # XXX Python 3.1 doesn't see _nc if this is inside the class
122 install.sub_commands = (
123 [cmd for cmd in orig.install.sub_commands if cmd[0] not in install._nc] +
124 install.new_commands
125 )