aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/python/setuptools/py3/setuptools/command/develop.py
blob: ea3e48e55c12fa8ad0f7506aba639e3837aa948b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
from distutils.util import convert_path
from distutils import log
from distutils.errors import DistutilsOptionError
import os
import glob

from setuptools.command.easy_install import easy_install
from setuptools import _path
from setuptools import namespaces
import setuptools


class develop(namespaces.DevelopInstaller, easy_install):
    """Set up package for development"""

    description = "install package in 'development mode'"

    user_options = easy_install.user_options + [
        ("uninstall", "u", "Uninstall this source package"),
        ("egg-path=", None, "Set the path to be used in the .egg-link file"),
    ]

    boolean_options = easy_install.boolean_options + ['uninstall']

    command_consumes_arguments = False  # override base

    def run(self):
        if self.uninstall:
            self.multi_version = True
            self.uninstall_link()
            self.uninstall_namespaces()
        else:
            self.install_for_development()
        self.warn_deprecated_options()

    def initialize_options(self):
        self.uninstall = None
        self.egg_path = None
        easy_install.initialize_options(self)
        self.setup_path = None
        self.always_copy_from = '.'  # always copy eggs installed in curdir

    def finalize_options(self):
        import pkg_resources

        ei = self.get_finalized_command("egg_info")
        self.args = [ei.egg_name]

        easy_install.finalize_options(self)
        self.expand_basedirs()
        self.expand_dirs()
        # pick up setup-dir .egg files only: no .egg-info
        self.package_index.scan(glob.glob('*.egg'))

        egg_link_fn = ei.egg_name + '.egg-link'
        self.egg_link = os.path.join(self.install_dir, egg_link_fn)
        self.egg_base = ei.egg_base
        if self.egg_path is None:
            self.egg_path = os.path.abspath(ei.egg_base)

        target = _path.normpath(self.egg_base)
        egg_path = _path.normpath(os.path.join(self.install_dir, self.egg_path))
        if egg_path != target:
            raise DistutilsOptionError(
                "--egg-path must be a relative path from the install"
                " directory to " + target
            )

        # Make a distribution for the package's source
        self.dist = pkg_resources.Distribution(
            target,
            pkg_resources.PathMetadata(target, os.path.abspath(ei.egg_info)),
            project_name=ei.egg_name,
        )

        self.setup_path = self._resolve_setup_path(
            self.egg_base,
            self.install_dir,
            self.egg_path,
        )

    @staticmethod
    def _resolve_setup_path(egg_base, install_dir, egg_path):
        """
        Generate a path from egg_base back to '.' where the
        setup script resides and ensure that path points to the
        setup path from $install_dir/$egg_path.
        """
        path_to_setup = egg_base.replace(os.sep, '/').rstrip('/')
        if path_to_setup != os.curdir:
            path_to_setup = '../' * (path_to_setup.count('/') + 1)
        resolved = _path.normpath(os.path.join(install_dir, egg_path, path_to_setup))
        curdir = _path.normpath(os.curdir)
        if resolved != curdir:
            raise DistutilsOptionError(
                "Can't get a consistent path to setup script from"
                " installation directory",
                resolved,
                curdir,
            )
        return path_to_setup

    def install_for_development(self):
        self.run_command('egg_info')

        # Build extensions in-place
        self.reinitialize_command('build_ext', inplace=1)
        self.run_command('build_ext')

        if setuptools.bootstrap_install_from:
            self.easy_install(setuptools.bootstrap_install_from)
            setuptools.bootstrap_install_from = None

        self.install_namespaces()

        # create an .egg-link in the installation dir, pointing to our egg
        log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
        if not self.dry_run:
            with open(self.egg_link, "w") as f:
                f.write(self.egg_path + "\n" + self.setup_path)
        # postprocess the installed distro, fixing up .pth, installing scripts,
        # and handling requirements
        self.process_distribution(None, self.dist, not self.no_deps)

    def uninstall_link(self):
        if os.path.exists(self.egg_link):
            log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
            egg_link_file = open(self.egg_link)
            contents = [line.rstrip() for line in egg_link_file]
            egg_link_file.close()
            if contents not in ([self.egg_path], [self.egg_path, self.setup_path]):
                log.warn("Link points to %s: uninstall aborted", contents)
                return
            if not self.dry_run:
                os.unlink(self.egg_link)
        if not self.dry_run:
            self.update_pth(self.dist)  # remove any .pth link to us
        if self.distribution.scripts:
            # XXX should also check for entry point scripts!
            log.warn("Note: you must uninstall or replace scripts manually!")

    def install_egg_scripts(self, dist):
        if dist is not self.dist:
            # Installing a dependency, so fall back to normal behavior
            return easy_install.install_egg_scripts(self, dist)

        # create wrapper scripts in the script dir, pointing to dist.scripts

        # new-style...
        self.install_wrapper_scripts(dist)

        # ...and old-style
        for script_name in self.distribution.scripts or []:
            script_path = os.path.abspath(convert_path(script_name))
            script_name = os.path.basename(script_path)
            with open(script_path) as strm:
                script_text = strm.read()
            self.install_script(dist, script_name, script_text, script_path)

    def install_wrapper_scripts(self, dist):
        dist = VersionlessRequirement(dist)
        return easy_install.install_wrapper_scripts(self, dist)


class VersionlessRequirement:
    """
    Adapt a pkg_resources.Distribution to simply return the project
    name as the 'requirement' so that scripts will work across
    multiple versions.

    >>> from pkg_resources import Distribution
    >>> dist = Distribution(project_name='foo', version='1.0')
    >>> str(dist.as_requirement())
    'foo==1.0'
    >>> adapted_dist = VersionlessRequirement(dist)
    >>> str(adapted_dist.as_requirement())
    'foo'
    """

    def __init__(self, dist):
        self.__dist = dist

    def __getattr__(self, name):
        return getattr(self.__dist, name)

    def as_requirement(self):
        return self.project_name