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rustbuild: Retry downloads by default #40060

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merged 1 commit into from
Feb 25, 2017
Merged

rustbuild: Retry downloads by default #40060

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21 changes: 17 additions & 4 deletions src/bootstrap/bootstrap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -59,20 +59,33 @@ def delete_if_present(path, verbose):


def download(path, url, probably_big, verbose):
for x in range(0, 4):
try:
_download(path, url, probably_big, verbose, True)
return
except RuntimeError:
print("\nspurious failure, trying again")
_download(path, url, probably_big, verbose, False)


def _download(path, url, probably_big, verbose, exception):
if probably_big or verbose:
print("downloading {}".format(url))
# see http://serverfault.com/questions/301128/how-to-download
if sys.platform == 'win32':
run(["PowerShell.exe", "/nologo", "-Command",
"(New-Object System.Net.WebClient)"
".DownloadFile('{}', '{}')".format(url, path)],
verbose=verbose)
verbose=verbose,
exception=exception)
else:
if probably_big or verbose:
option = "-#"
else:
option = "-s"
run(["curl", option, "--retry", "3", "-Sf", "-o", path, url], verbose=verbose)
run(["curl", option, "--retry", "3", "-Sf", "-o", path, url],
verbose=verbose,
exception=exception)


def verify(path, sha_path, verbose):
Expand Down Expand Up @@ -112,7 +125,7 @@ def unpack(tarball, dst, verbose=False, match=None):
shutil.move(tp, fp)
shutil.rmtree(os.path.join(dst, fname))

def run(args, verbose=False):
def run(args, verbose=False, exception=False):
if verbose:
print("running: " + ' '.join(args))
sys.stdout.flush()
Expand All @@ -122,7 +135,7 @@ def run(args, verbose=False):
code = ret.wait()
if code != 0:
err = "failed to run: " + ' '.join(args)
if verbose:
if verbose or exception:
raise RuntimeError(err)
sys.exit(err)

Expand Down