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Add support for downloading Windows VS toolchain from a HTTP URL

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Add support for downloading Windows VS toolchain from a HTTP URL.
This is useful for developers that do not have access to the
Chrome toolchain.

If the developer specifies DEPOT_TOOLS_WIN_TOOLCHAIN_HTTP_BASE_URL
environment variable, the toolchain will be downloaded from that
url.

Bug: 830569
Change-Id: I41d815a4460085c3b028f56f2e01adc68d8410fe
Reviewed-on: https://chromium-review.googlesource.com/1002892
Commit-Queue: Kimmo Kinnunen FI <kkinnunen@nvidia.com>
Reviewed-by: Scott Graham <scottmg@chromium.org>
This commit is contained in:
Kimmo Kinnunen
2018-04-12 09:08:27 +03:00
committed by Commit Bot
parent 53a115e67e
commit 54a81e45dd
1 changed files with 35 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
win_toolchain/get_toolchain_if_necessary.py
View File

@@ -238,6 +238,10 @@ def CanAccessToolchainBucket():
return code == 0
def UsesToolchainFromHttp():
return os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN_HTTP_BASE_URL') != None
def RequestGsAuthentication():
"""Requests that the user authenticate to be able to access gs:// as a
Googler. This allows much faster downloads, and pulling (old) toolchains
@@ -276,6 +280,30 @@ def DelayBeforeRemoving(target_dir):
print
def DownloadUsingHttp(filename):
"""Downloads the given file from a url defined in
DEPOT_TOOLS_WIN_TOOLCHAIN_HTTP_BASE_URL environment variable."""
import urlparse
import urllib2
from contextlib import closing
temp_dir = tempfile.mkdtemp()
assert os.path.basename(filename) == filename
target_path = os.path.join(temp_dir, filename)
base_url = os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN_HTTP_BASE_URL')
if base_url == None:
sys.exit('Missing DEPOT_TOOLS_WIN_TOOLCHAIN_HTTP_BASE_URL environment '
'variable')
src_url = urlparse.urljoin(base_url, filename)
try:
with closing(urllib2.urlopen(src_url)) as fsrc, \
open(target_path, 'wb') as fdst:
shutil.copyfileobj(fsrc, fdst)
except urllib2.URLError as e:
RmDir(temp_dir)
sys.exit('Failed to retrieve file: %s' % e)
return temp_dir, target_path
def DownloadUsingGsutil(filename):
"""Downloads the given file from Google Storage chrome-wintoolchain bucket."""
temp_dir = tempfile.mkdtemp()
@@ -306,6 +334,8 @@ def DoTreeMirror(target_dir, tree_sha1):
if use_local_zip:
temp_dir = None
local_zip = tree_sha1 + '.zip'
elif UsesToolchainFromHttp():
temp_dir, local_zip = DownloadUsingHttp(tree_sha1 + '.zip')
else:
temp_dir, local_zip = DownloadUsingGsutil(tree_sha1 + '.zip')
sys.stdout.write('Extracting %s...\n' % local_zip)
@@ -452,14 +482,17 @@ def main():
# based on timestamps to make that case fast.
current_hashes = CalculateToolchainHashes(target_dir, True)
if desired_hash not in current_hashes:
should_use_http = False
should_use_gs = False
if (HaveSrcInternalAccess() or
if UsesToolchainFromHttp():
should_use_http = True
elif (HaveSrcInternalAccess() or
LooksLikeGoogler() or
CanAccessToolchainBucket()):
should_use_gs = True
if not CanAccessToolchainBucket():
RequestGsAuthentication()
if not should_use_gs:
if not should_use_gs and not should_use_http:
print('\n\n\nPlease follow the instructions at '
'https://www.chromium.org/developers/how-tos/'
'build-instructions-windows\n\n')