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forked frompoise/python

Commit90a3f6c

Browse files
committed
Update bootstrap files for pip 1.5.2 and setuptools 2.1
1 parent6e0afef commit90a3f6c

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2 files changed

+21645
-7282
lines changed

2 files changed

+21645
-7282
lines changed

‎files/default/ez_setup.py

Lines changed: 164 additions & 61 deletions
Original file line numberDiff line numberDiff line change
@@ -1,14 +1,14 @@
1-
#!python
1+
#!/usr/bin/envpython
22
"""Bootstrap setuptools installation
33
4-
If you want touse setuptools in your package's setup.py, just include this
5-
file in the same directorywith it,and add this to the top of your setup.py::
4+
Touse setuptools in your package's setup.py, include this
5+
file in the same directory and add this to the top of your setup.py::
66
77
from ez_setup import use_setuptools
88
use_setuptools()
99
10-
If you want to require a specific version of setuptools, set a download
11-
mirror, or use an alternate download directory,you can do so by supplying
10+
To require a specific version of setuptools, set a download
11+
mirror, or use an alternate download directory,simply supply
1212
the appropriate options to ``use_setuptools()``.
1313
1414
This file can also be run as a script to install or upgrade setuptools.
@@ -20,6 +20,8 @@
2020
importtarfile
2121
importoptparse
2222
importsubprocess
23+
importplatform
24+
importtextwrap
2325

2426
fromdistutilsimportlog
2527

@@ -28,7 +30,7 @@
2830
exceptImportError:
2931
USER_SITE=None
3032

31-
DEFAULT_VERSION="0.8"
33+
DEFAULT_VERSION="2.1"
3234
DEFAULT_URL="https://pypi.python.org/packages/source/s/setuptools/"
3335

3436
def_python_cmd(*args):
@@ -100,76 +102,184 @@ def _do_download(version, download_base, to_dir, download_delay):
100102
to_dir,download_delay)
101103
_build_egg(egg,tarball,to_dir)
102104
sys.path.insert(0,egg)
105+
106+
# Remove previously-imported pkg_resources if present (see
107+
# https://bitbucket.org/pypa/setuptools/pull-request/7/ for details).
108+
if'pkg_resources'insys.modules:
109+
delsys.modules['pkg_resources']
110+
103111
importsetuptools
104112
setuptools.bootstrap_install_from=egg
105113

106114

107115
defuse_setuptools(version=DEFAULT_VERSION,download_base=DEFAULT_URL,
108116
to_dir=os.curdir,download_delay=15):
109-
# making sure we use the absolute path
110117
to_dir=os.path.abspath(to_dir)
111-
was_imported='pkg_resources'insys.modulesor \
112-
'setuptools'insys.modules
118+
rep_modules='pkg_resources','setuptools'
119+
imported=set(sys.modules).intersection(rep_modules)
113120
try:
114121
importpkg_resources
115122
exceptImportError:
116123
return_do_download(version,download_base,to_dir,download_delay)
117124
try:
118125
pkg_resources.require("setuptools>="+version)
119126
return
120-
exceptpkg_resources.VersionConflict:
121-
e=sys.exc_info()[1]
122-
ifwas_imported:
123-
sys.stderr.write(
124-
"The required version of setuptools (>=%s) is not available,\n"
125-
"and can't be installed while this script is running. Please\n"
126-
"install a more recent version first, using\n"
127-
"'easy_install -U setuptools'."
128-
"\n\n(Currently using %r)\n"% (version,e.args[0]))
129-
sys.exit(2)
130-
else:
131-
delpkg_resources,sys.modules['pkg_resources']# reload ok
132-
return_do_download(version,download_base,to_dir,
133-
download_delay)
134127
exceptpkg_resources.DistributionNotFound:
135-
return_do_download(version,download_base,to_dir,
136-
download_delay)
128+
return_do_download(version,download_base,to_dir,download_delay)
129+
exceptpkg_resources.VersionConflictasVC_err:
130+
ifimported:
131+
msg=textwrap.dedent("""
132+
The required version of setuptools (>={version}) is not available,
133+
and can't be installed while this script is running. Please
134+
install a more recent version first, using
135+
'easy_install -U setuptools'.
136+
137+
(Currently using {VC_err.args[0]!r})
138+
""").format(VC_err=VC_err,version=version)
139+
sys.stderr.write(msg)
140+
sys.exit(2)
141+
142+
# otherwise, reload ok
143+
delpkg_resources,sys.modules['pkg_resources']
144+
return_do_download(version,download_base,to_dir,download_delay)
145+
146+
def_clean_check(cmd,target):
147+
"""
148+
Run the command to download target. If the command fails, clean up before
149+
re-raising the error.
150+
"""
151+
try:
152+
subprocess.check_call(cmd)
153+
exceptsubprocess.CalledProcessError:
154+
ifos.access(target,os.F_OK):
155+
os.unlink(target)
156+
raise
157+
158+
defdownload_file_powershell(url,target):
159+
"""
160+
Download the file at url to target using Powershell (which will validate
161+
trust). Raise an exception if the command cannot complete.
162+
"""
163+
target=os.path.abspath(target)
164+
cmd= [
165+
'powershell',
166+
'-Command',
167+
"(new-object System.Net.WebClient).DownloadFile(%(url)r, %(target)r)"%vars(),
168+
]
169+
_clean_check(cmd,target)
170+
171+
defhas_powershell():
172+
ifplatform.system()!='Windows':
173+
returnFalse
174+
cmd= ['powershell','-Command','echo test']
175+
devnull=open(os.path.devnull,'wb')
176+
try:
177+
try:
178+
subprocess.check_call(cmd,stdout=devnull,stderr=devnull)
179+
except:
180+
returnFalse
181+
finally:
182+
devnull.close()
183+
returnTrue
184+
185+
download_file_powershell.viable=has_powershell
137186

187+
defdownload_file_curl(url,target):
188+
cmd= ['curl',url,'--silent','--output',target]
189+
_clean_check(cmd,target)
190+
191+
defhas_curl():
192+
cmd= ['curl','--version']
193+
devnull=open(os.path.devnull,'wb')
194+
try:
195+
try:
196+
subprocess.check_call(cmd,stdout=devnull,stderr=devnull)
197+
except:
198+
returnFalse
199+
finally:
200+
devnull.close()
201+
returnTrue
202+
203+
download_file_curl.viable=has_curl
204+
205+
defdownload_file_wget(url,target):
206+
cmd= ['wget',url,'--quiet','--output-document',target]
207+
_clean_check(cmd,target)
208+
209+
defhas_wget():
210+
cmd= ['wget','--version']
211+
devnull=open(os.path.devnull,'wb')
212+
try:
213+
try:
214+
subprocess.check_call(cmd,stdout=devnull,stderr=devnull)
215+
except:
216+
returnFalse
217+
finally:
218+
devnull.close()
219+
returnTrue
220+
221+
download_file_wget.viable=has_wget
222+
223+
defdownload_file_insecure(url,target):
224+
"""
225+
Use Python to download the file, even though it cannot authenticate the
226+
connection.
227+
"""
228+
try:
229+
fromurllib.requestimporturlopen
230+
exceptImportError:
231+
fromurllib2importurlopen
232+
src=dst=None
233+
try:
234+
src=urlopen(url)
235+
# Read/write all in one block, so we don't create a corrupt file
236+
# if the download is interrupted.
237+
data=src.read()
238+
dst=open(target,"wb")
239+
dst.write(data)
240+
finally:
241+
ifsrc:
242+
src.close()
243+
ifdst:
244+
dst.close()
245+
246+
download_file_insecure.viable=lambda:True
247+
248+
defget_best_downloader():
249+
downloaders= [
250+
download_file_powershell,
251+
download_file_curl,
252+
download_file_wget,
253+
download_file_insecure,
254+
]
255+
256+
fordlindownloaders:
257+
ifdl.viable():
258+
returndl
138259

139260
defdownload_setuptools(version=DEFAULT_VERSION,download_base=DEFAULT_URL,
140-
to_dir=os.curdir,delay=15):
261+
to_dir=os.curdir,delay=15,
262+
downloader_factory=get_best_downloader):
141263
"""Download setuptools from a specified location and return its filename
142264
143265
`version` should be a valid setuptools version number that is available
144266
as an egg for download under the `download_base` URL (which should end
145267
with a '/'). `to_dir` is the directory where the egg will be downloaded.
146268
`delay` is the number of seconds to pause before an actual download
147269
attempt.
270+
271+
``downloader_factory`` should be a function taking no arguments and
272+
returning a function for downloading a URL to a target.
148273
"""
149274
# making sure we use the absolute path
150275
to_dir=os.path.abspath(to_dir)
151-
try:
152-
fromurllib.requestimporturlopen
153-
exceptImportError:
154-
fromurllib2importurlopen
155276
tgz_name="setuptools-%s.tar.gz"%version
156277
url=download_base+tgz_name
157278
saveto=os.path.join(to_dir,tgz_name)
158-
src=dst=None
159279
ifnotos.path.exists(saveto):# Avoid repeated downloads
160-
try:
161-
log.warn("Downloading %s",url)
162-
src=urlopen(url)
163-
# Read/write all in one block, so we don't create a corrupt file
164-
# if the download is interrupted.
165-
data=src.read()
166-
dst=open(saveto,"wb")
167-
dst.write(data)
168-
finally:
169-
ifsrc:
170-
src.close()
171-
ifdst:
172-
dst.close()
280+
log.warn("Downloading %s",url)
281+
downloader=downloader_factory()
282+
downloader(url,saveto)
173283
returnos.path.realpath(saveto)
174284

175285

@@ -197,13 +307,7 @@ def _extractall(self, path=".", members=None):
197307
self.extract(tarinfo,path)
198308

199309
# Reverse sort directories.
200-
ifsys.version_info< (2,4):
201-
defsorter(dir1,dir2):
202-
returncmp(dir1.name,dir2.name)
203-
directories.sort(sorter)
204-
directories.reverse()
205-
else:
206-
directories.sort(key=operator.attrgetter('name'),reverse=True)
310+
directories.sort(key=operator.attrgetter('name'),reverse=True)
207311

208312
# Set correct owner, mtime and filemode on directories.
209313
fortarinfoindirectories:
@@ -212,8 +316,7 @@ def sorter(dir1, dir2):
212316
self.chown(tarinfo,dirpath)
213317
self.utime(tarinfo,dirpath)
214318
self.chmod(tarinfo,dirpath)
215-
exceptExtractError:
216-
e=sys.exc_info()[1]
319+
exceptExtractErrorase:
217320
ifself.errorlevel>1:
218321
raise
219322
else:
@@ -224,13 +327,7 @@ def _build_install_args(options):
224327
"""
225328
Build the arguments to 'python setup.py install' on the setuptools package
226329
"""
227-
install_args= []
228-
ifoptions.user_install:
229-
ifsys.version_info< (2,6):
230-
log.warn("--user requires Python 2.6 or later")
231-
raiseSystemExit(1)
232-
install_args.append('--user')
233-
returninstall_args
330+
return ['--user']ifoptions.user_installelse []
234331

235332
def_parse_args():
236333
"""
@@ -244,14 +341,20 @@ def _parse_args():
244341
'--download-base',dest='download_base',metavar="URL",
245342
default=DEFAULT_URL,
246343
help='alternative URL from where to download the setuptools package')
344+
parser.add_option(
345+
'--insecure',dest='downloader_factory',action='store_const',
346+
const=lambda:download_file_insecure,default=get_best_downloader,
347+
help='Use internal, non-validating downloader'
348+
)
247349
options,args=parser.parse_args()
248350
# positional arguments are ignored
249351
returnoptions
250352

251353
defmain(version=DEFAULT_VERSION):
252354
"""Install or upgrade setuptools and EasyInstall"""
253355
options=_parse_args()
254-
tarball=download_setuptools(download_base=options.download_base)
356+
tarball=download_setuptools(download_base=options.download_base,
357+
downloader_factory=options.downloader_factory)
255358
return_install(tarball,_build_install_args(options))
256359

257360
if__name__=='__main__':

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