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Download to tmp file then move to dst.

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This commit is contained in:
Shao Cheng 2017-01-24 00:07:51 +08:00
parent 8f0df03e30
commit dfe2e4f217
1 changed files with 9 additions and 10 deletions
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19
stackage.py
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@ -6,6 +6,7 @@
import os
import pathlib
import requests
import shutil
import subprocess
import yaml
@ -23,22 +24,20 @@ class StackageSession(object):
print('{} exists, skipping'.format(file_path), flush=True)
else:
args = [
'aria2c', url, '--dir={}'.format(dir_path),
'--file-allocation=none', '--quiet=true',
'aria2c', url, '--dir={}'.format(dir_path), '--out={}.tmp'.format(url.split('/')[-1]),
'--file-allocation=none', '--quiet=true'
]
if sha1:
args.append('--checksum=sha-1={}'.format(sha1))
if subprocess.run(args).returncode != 0 and file_path.is_file():
file_path.unlink()
raise OSError('Download failed for {}'.format(url))
else:
print('Downloaded {} to {}'.format(url, file_path), flush=True)
subprocess.run(args, check=True)
shutil.move('{}.tmp'.format(file_path), file_path)
print('Downloaded {} to {}'.format(url, file_path), flush=True)
def load_stack_setup(self):
d = yaml.load(
requests
.get('https://raw.githubusercontent.com/fpco/stackage-content/master/stack/stack-setup-2.yaml')
.content
.get('https://raw.githubusercontent.com/fpco/stackage-content/master/stack/stack-setup-2.yaml')
.content
)
for platform in d['ghc']:
for ver in d['ghc'][platform]:
@ -49,7 +48,7 @@ class StackageSession(object):
)
d['ghc'][platform][ver]['url'] = (
'http://mirrors.tuna.tsinghua.edu.cn/stackage/ghc/{}'
.format(d['ghc'][platform][ver]['url'].split('/')[-1])
.format(d['ghc'][platform][ver]['url'].split('/')[-1])
)
d['msys2'] = {