/
install.py
359 lines (310 loc) · 13.3 KB
/
install.py
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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
from __future__ import absolute_import
import logging
import operator
import os
import tempfile
import shutil
import warnings
try:
import wheel
except ImportError:
wheel = None
from pip.req import RequirementSet
from pip.basecommand import RequirementCommand
from pip.locations import virtualenv_no_global, distutils_scheme
from pip.index import PackageFinder
from pip.exceptions import (
InstallationError, CommandError, PreviousBuildDirError,
)
from pip import cmdoptions
from pip.utils import ensure_dir
from pip.utils.build import BuildDirectory
from pip.utils.deprecation import RemovedInPip8Warning
from pip.wheel import WheelBuilder
logger = logging.getLogger(__name__)
class InstallCommand(RequirementCommand):
"""
Install packages from:
- PyPI (and other indexes) using requirement specifiers.
- VCS project urls.
- Local project directories.
- Local or remote source archives.
pip also supports installing from "requirements files", which provide
an easy way to specify a whole environment to be installed.
"""
name = 'install'
usage = """
%prog [options] <requirement specifier> [package-index-options] ...
%prog [options] -r <requirements file> [package-index-options] ...
%prog [options] [-e] <vcs project url> ...
%prog [options] [-e] <local project path> ...
%prog [options] <archive url/path> ..."""
summary = 'Install packages.'
def __init__(self, *args, **kw):
super(InstallCommand, self).__init__(*args, **kw)
cmd_opts = self.cmd_opts
cmd_opts.add_option(cmdoptions.editable.make())
cmd_opts.add_option(cmdoptions.requirements.make())
cmd_opts.add_option(cmdoptions.build_dir.make())
cmd_opts.add_option(
'-t', '--target',
dest='target_dir',
metavar='dir',
default=None,
help='Install packages into <dir>. '
'By default this will not replace existing files/folders in '
'<dir>. Use --upgrade to replace existing packages in <dir> '
'with new versions.'
)
cmd_opts.add_option(
'-d', '--download', '--download-dir', '--download-directory',
dest='download_dir',
metavar='dir',
default=None,
help=("Download packages into <dir> instead of installing them, "
"regardless of what's already installed."),
)
cmd_opts.add_option(cmdoptions.download_cache.make())
cmd_opts.add_option(cmdoptions.src.make())
cmd_opts.add_option(
'-U', '--upgrade',
dest='upgrade',
action='store_true',
help='Upgrade all specified packages to the newest available '
'version. This process is recursive regardless of whether '
'a dependency is already satisfied.'
)
cmd_opts.add_option(
'--force-reinstall',
dest='force_reinstall',
action='store_true',
help='When upgrading, reinstall all packages even if they are '
'already up-to-date.')
cmd_opts.add_option(
'-I', '--ignore-installed',
dest='ignore_installed',
action='store_true',
help='Ignore the installed packages (reinstalling instead).')
cmd_opts.add_option(cmdoptions.no_deps.make())
cmd_opts.add_option(cmdoptions.install_options.make())
cmd_opts.add_option(cmdoptions.global_options.make())
cmd_opts.add_option(
'--user',
dest='use_user_site',
action='store_true',
help="Install to the Python user install directory for your "
"platform. Typically ~/.local/, or %APPDATA%\Python on "
"Windows. (See the Python documentation for site.USER_BASE "
"for full details.)")
cmd_opts.add_option(
'--egg',
dest='as_egg',
action='store_true',
help="Install packages as eggs, not 'flat', like pip normally "
"does. This option is not about installing *from* eggs. "
"(WARNING: Because this option overrides pip's normal install"
" logic, requirements files may not behave as expected.)")
cmd_opts.add_option(
'--root',
dest='root_path',
metavar='dir',
default=None,
help="Install everything relative to this alternate root "
"directory.")
cmd_opts.add_option(
"--compile",
action="store_true",
dest="compile",
default=True,
help="Compile py files to pyc",
)
cmd_opts.add_option(
"--no-compile",
action="store_false",
dest="compile",
help="Do not compile py files to pyc",
)
cmd_opts.add_option(cmdoptions.use_wheel.make())
cmd_opts.add_option(cmdoptions.no_use_wheel.make())
cmd_opts.add_option(
'--pre',
action='store_true',
default=False,
help="Include pre-release and development versions. By default, "
"pip only finds stable versions.")
cmd_opts.add_option(cmdoptions.no_clean.make())
index_opts = cmdoptions.make_option_group(
cmdoptions.index_group,
self.parser,
)
self.parser.insert_option_group(0, index_opts)
self.parser.insert_option_group(0, cmd_opts)
def _build_package_finder(self, options, index_urls, session):
"""
Create a package finder appropriate to this install command.
This method is meant to be overridden by subclasses, not
called directly.
"""
return PackageFinder(
find_links=options.find_links,
index_urls=index_urls,
use_wheel=options.use_wheel,
allow_external=options.allow_external,
allow_unverified=options.allow_unverified,
allow_all_external=options.allow_all_external,
trusted_hosts=options.trusted_hosts,
allow_all_prereleases=options.pre,
process_dependency_links=options.process_dependency_links,
session=session,
)
def run(self, options, args):
if options.download_dir:
options.ignore_installed = True
if options.build_dir:
options.build_dir = os.path.abspath(options.build_dir)
options.src_dir = os.path.abspath(options.src_dir)
install_options = options.install_options or []
if options.use_user_site:
if virtualenv_no_global():
raise InstallationError(
"Can not perform a '--user' install. User site-packages "
"are not visible in this virtualenv."
)
install_options.append('--user')
temp_target_dir = None
if options.target_dir:
options.ignore_installed = True
temp_target_dir = tempfile.mkdtemp()
options.target_dir = os.path.abspath(options.target_dir)
if (os.path.exists(options.target_dir) and not
os.path.isdir(options.target_dir)):
raise CommandError(
"Target path exists but is not a directory, will not "
"continue."
)
install_options.append('--home=' + temp_target_dir)
global_options = options.global_options or []
index_urls = [options.index_url] + options.extra_index_urls
if options.no_index:
logger.info('Ignoring indexes: %s', ','.join(index_urls))
index_urls = []
if options.download_cache:
warnings.warn(
"--download-cache has been deprecated and will be removed in "
"the future. Pip now automatically uses and configures its "
"cache.",
RemovedInPip8Warning,
)
with self._build_session(options) as session:
finder = self._build_package_finder(options, index_urls, session)
build_delete = (not (options.no_clean or options.build_dir))
with BuildDirectory(options.build_dir,
delete=build_delete) as build_dir:
requirement_set = RequirementSet(
build_dir=build_dir,
cache_root=options.cache_dir,
src_dir=options.src_dir,
download_dir=options.download_dir,
upgrade=options.upgrade,
as_egg=options.as_egg,
ignore_installed=options.ignore_installed,
ignore_dependencies=options.ignore_dependencies,
force_reinstall=options.force_reinstall,
use_user_site=options.use_user_site,
target_dir=temp_target_dir,
session=session,
pycompile=options.compile,
isolated=options.isolated_mode,
)
self.populate_requirement_set(
requirement_set, args, options, finder, session, self.name,
)
if not requirement_set.has_requirements:
return
try:
if options.download_dir or not wheel:
# on -d don't do complex things like building
# wheels, and don't try to build wheels when wheel is
# not installed.
requirement_set.prepare_files(finder)
else:
# build wheels before install.
wb = WheelBuilder(
requirement_set,
finder,
build_options=[],
global_options=[],
)
# Ignore the result: a failed wheel will be
# installed from the sdist/vcs whatever.
wb.build(autobuilding=True)
if not options.download_dir:
requirement_set.install(
install_options,
global_options,
root=options.root_path,
)
reqs = sorted(
requirement_set.successfully_installed,
key=operator.attrgetter('name'))
items = []
for req in reqs:
item = req.name
try:
if hasattr(req, 'installed_version'):
if req.installed_version:
item += '-' + req.installed_version
except Exception:
pass
items.append(item)
installed = ' '.join(items)
if installed:
logger.info('Successfully installed %s', installed)
else:
downloaded = ' '.join([
req.name
for req in requirement_set.successfully_downloaded
])
if downloaded:
logger.info(
'Successfully downloaded %s', downloaded
)
except PreviousBuildDirError:
options.no_clean = True
raise
finally:
# Clean up
if not options.no_clean:
requirement_set.cleanup_files()
if options.target_dir:
ensure_dir(options.target_dir)
lib_dir = distutils_scheme('', home=temp_target_dir)['purelib']
for item in os.listdir(lib_dir):
target_item_dir = os.path.join(options.target_dir, item)
if os.path.exists(target_item_dir):
if not options.upgrade:
logger.warning(
'Target directory %s already exists. Specify '
'--upgrade to force replacement.',
target_item_dir
)
continue
if os.path.islink(target_item_dir):
logger.warning(
'Target directory %s already exists and is '
'a link. Pip will not automatically replace '
'links, please remove if replacement is '
'desired.',
target_item_dir
)
continue
if os.path.isdir(target_item_dir):
shutil.rmtree(target_item_dir)
else:
os.remove(target_item_dir)
shutil.move(
os.path.join(lib_dir, item),
target_item_dir
)
shutil.rmtree(temp_target_dir)
return requirement_set