#!/usr/bin/env python
import sys
from bup import options
-from bup.helpers import *
+from bup import _version
optspec = """
bup version [--date|--commit|--tag]
if total > 1:
o.fatal('at most one option expected')
+
+def version_date():
+ """Format bup's version date string for output."""
+ return _version.DATE.split(' ')[0]
+
+
+def version_commit():
+ """Get the commit hash of bup's current version."""
+ return _version.COMMIT
+
+
+def version_tag():
+ """Format bup's version tag (the official version number).
+
+ When generated from a commit other than one pointed to with a tag, the
+ returned string will be "unknown-" followed by the first seven positions of
+ the commit hash.
+ """
+ names = _version.NAMES.strip()
+ assert(names[0] == '(')
+ assert(names[-1] == ')')
+ names = names[1:-1]
+ l = [n.strip() for n in names.split(',')]
+ for n in l:
+ if n.startswith('tag: bup-'):
+ return n[9:]
+ return 'unknown-%s' % _version.COMMIT[:7]
+
+
if opt.date:
print version_date()
elif opt.commit: