bpo-30450: Adds alternate download approach for nuget.exe (#2737)

* bpo-30450: Adds alternate download approach for nuget.exe

* Whitespace fix.
This commit is contained in:
Steve Dower 2017-07-17 14:55:28 +02:00 committed by GitHub
parent 2c8a5e4c96
commit 588836d3e6
2 changed files with 41 additions and 1 deletions

View File

@ -42,7 +42,8 @@
@echo Downloading nuget...
@rem NB: Must use single quotes around NUGET here, NOT double!
@rem Otherwise, a space in the path would break things
@powershell.exe -Command Invoke-WebRequest %_Py_NUGET_URL% -OutFile '%_Py_NUGET%'
@rem If it fails, retry with any available copy of Python
@powershell.exe -Command Invoke-WebRequest %_Py_NUGET_URL% -OutFile '%_Py_NUGET%' || @py -c "%~dp0\urlretrieve.py" "%_Py_NUGET_URL%" "%_Py_NUGET%"
)
@echo Installing Python via nuget...
@"%_Py_NUGET%" install pythonx86 -ExcludeVersion -OutputDirectory "%_Py_EXTERNALS_DIR%"

39
PCbuild/urlretrieve.py Normal file
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@ -0,0 +1,39 @@
# Simple Python script to download a file. Used as a fallback
# when other more reliable methods fail.
#
from __future__ import print_function
import sys
try:
from requests import get
except ImportError:
try:
from urllib.request import urlretrieve
USING = "urllib.request.urlretrieve"
except ImportError:
try:
from urllib import urlretrieve
USING = "urllib.retrieve"
except ImportError:
print("Python at", sys.executable, "is not suitable",
"for downloading files.", file=sys.stderr)
sys.exit(2)
else:
USING = "requests.get"
def urlretrieve(url, filename):
r = get(url, stream=True)
r.raise_for_status()
with open(filename, 'wb') as f:
for chunk in r.iter_content(chunk_size=1024):
f.write(chunk)
return filename
if __name__ == '__main__':
if len(sys.argv) != 3:
print("Usage: urlretrieve.py [url] [filename]", file=sys.stderr)
sys.exit(1)
URL = sys.argv[1]
FILENAME = sys.argv[2]
print("Downloading from", URL, "to", FILENAME, "using", USING)
urlretrieve(URL, FILENAME)