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archive: verify and use existing already-downloaded files

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This commit is contained in:
Dan Streetman 2020-01-25 07:45:56 -05:00
parent 8682c44957
commit eaa07014e0
1 changed files with 17 additions and 10 deletions
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27
ubuntutools/archive.py
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@ -452,11 +452,25 @@ class SourcePackage(object):
(downloaded / 1024.0 / 1024,
size / 1024.0 / 1024))
def _verify_file(self, pathname, dscverify=False, sha1sum=False, sha256sum=False, size=0):
if not os.path.exists(pathname):
return False
if size and size != os.path.getsize(pathname):
return False
if dscverify and not self.dsc.verify_file(pathname):
return False
if sha1sum and not verify_file_checksum(pathname, 'SHA1', sha1sum, size):
return False
if sha256sum and not verify_file_checksum(pathname, 'SHA256', sha256sum, size):
return False
return True
def _download_file(self, url, filename, size, dscverify=False, sha1sum=None, sha256sum=None):
"Download url to filename in workdir."
pathname = os.path.join(self.workdir, filename)
if dscverify and self.dsc.verify_file(pathname):
Logger.debug('Using existing %s', filename)
if self._verify_file(pathname, dscverify, sha1sum, sha256sum, size):
Logger.debug('Using existing file %s', filename)
return True
if urlparse(url).scheme in ["", "file"]:
@ -487,14 +501,7 @@ class SourcePackage(object):
if e.code == 404:
return False
raise e
if dscverify and not self.dsc.verify_file(pathname):
return False
if sha1sum and not verify_file_checksum(pathname, 'SHA1', sha1sum, size):
return False
if sha256sum and not verify_file_checksum(pathname, 'SHA256', sha256sum, size):
return False
return True
return self._verify_file(pathname, dscverify, sha1sum, sha256sum, size)
def pull(self):
"Pull into workdir"