def CacheFromLine(self, line: Text,
build_info: 'buildinfo.BuildInfo') -> Optional[Text]:
"""Downloads any files in the command line and replaces with the local path.
Args:
line: the command line to process as a string
build_info: the current build information
Returns:
the final command line as a string; None on error
Raises:
CacheError: unable to download a file to the local cache
"""
match = self._FindDownload(line)
while match:
dl = download.Transform(match, build_info)
if download.IsRemote(dl):
destination = self._DestinationPath(build_info.CachePath(), dl)
try:
self._downloader.DownloadFile(dl, destination)
except download.DownloadError as e:
self._downloader.PrintDebugInfo()
raise CacheError('Unable to download required file %s: %s' % (dl, e))
else: # bypass download for local files
destination = dl
line = line.replace(match, destination)
match = self._FindDownload(line)
return line
def Run(self):
downloader = download.Download()
for arg in self._args:
src = arg[0]
dst = arg[1]
full_url = download.Transform(src, self._build_info)
# support legacy untagged short filenames
if not (download.IsRemote(full_url) or download.IsLocal(full_url)):
full_url = download.PathCompile(self._build_info, file_name=full_url)
try:
file_util.CreateDirectories(dst)
except file_util.Error as e:
raise ActionError('Could not create destination directory %s. %s' %
(dst, e))
try:
downloader.DownloadFile(full_url, dst, show_progress=True)
except download.DownloadError as e:
downloader.PrintDebugInfo()
raise ActionError('Transfer error while downloading %s: %s' %
(full_url, str(e)))
if len(arg) > 2 and arg[2]:
logging.info('Verifying SHA256 hash for %s.', dst)
hash_ok = downloader.VerifyShaHash(dst, arg[2])
if not hash_ok:
raise ActionError('SHA256 hash for %s was incorrect.' % dst)
def testIsRemote(self):
self.assertTrue(download.IsRemote('http://glazier.example.com'))
self.assertTrue(download.IsRemote('https://glazier.example.com'))
self.assertTrue(download.IsRemote('HTTPS://glazier.example.com'))
self.assertFalse(download.IsRemote('String with HTTP in it.'))
self.assertFalse(download.IsRemote('C:/glazier'))