diff options
-rw-r--r-- | bitbake/lib/bb/utils.py | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py index 9702c8c20..19327b715 100644 --- a/bitbake/lib/bb/utils.py +++ b/bitbake/lib/bb/utils.py @@ -237,3 +237,34 @@ def unlockfile(lf): fcntl.flock(lf.fileno(), fcntl.LOCK_UN) lf.close +def md5_file(filename): + """ + Return the hex string representation of the MD5 checksum of filename. + """ + try: + import hashlib + m = hashlib.md5() + except ImportError: + import md5 + m = md5.new() + + for line in open(filename): + m.update(line) + return m.hexdigest() + +def sha256_file(filename): + """ + Return the hex string representation of the 256-bit SHA checksum of + filename. On Python 2.4 this will return None, so callers will need to + handle that by either skipping SHA checks, or running a standalone sha256sum + binary. + """ + try: + import hashlib + except ImportError: + return None + + s = hashlib.sha256() + for line in open(filename): + s.update(line) + return s.hexdigest() |