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-rw-r--r--src/lib/Bcfg2/version.py115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/lib/Bcfg2/version.py b/src/lib/Bcfg2/version.py
new file mode 100644
index 000000000..ac10dac94
--- /dev/null
+++ b/src/lib/Bcfg2/version.py
@@ -0,0 +1,115 @@
+import re
+
+__version__ = "1.3.0"
+
+class Bcfg2VersionInfo(tuple):
+ v_re = re.compile(r'(\d+)(\w+)(\d+)')
+
+ def __new__(cls, vstr):
+ (major, minor, rest) = vstr.split(".")
+ match = cls.v_re.match(rest)
+ if match:
+ micro, releaselevel, serial = match.groups()
+ else:
+ micro = rest
+ releaselevel = 'final'
+ serial = 0
+ return tuple.__new__(cls, [int(major), int(minor), int(micro),
+ releaselevel, int(serial)])
+
+ def __init__(self, vstr):
+ tuple.__init__(self)
+ self.major, self.minor, self.micro, self.releaselevel, self.serial = \
+ tuple(self)
+
+ def __repr__(self):
+ return "(major=%s, minor=%s, micro=%s, releaselevel=%s, serial=%s)" % \
+ tuple(self)
+
+ def _release_cmp(self, r1, r2):
+ if r1 == r2:
+ return 0
+ elif r1 == "final":
+ return -1
+ elif r2 == "final":
+ return 1
+ elif r1 == "rc":
+ return -1
+ elif r2 == "rc":
+ return 1
+ # should never get to anything past this point
+ elif r1 == "pre":
+ return -1
+ elif r2 == "pre":
+ return 1
+ else:
+ # wtf?
+ return 0
+
+ def __gt__(self, version):
+ if version is None:
+ # older bcfg2 clients didn't report their version, so we
+ # handle this case specially and assume that any reported
+ # version is newer than any indeterminate version
+ return True
+ try:
+ for i in range(3):
+ if self[i] > version[i]:
+ return True
+ elif self[i] < version[i]:
+ return False
+ rel = self._release_cmp(self[3], version[3])
+ if rel < 0:
+ return True
+ elif rel > 0:
+ return False
+ if self[4] > version[4]:
+ return True
+ else:
+ return False
+ except TypeError:
+ return self > Bcfg2VersionInfo(version)
+
+ def __lt__(self, version):
+ if version is None:
+ # older bcfg2 clients didn't report their version, so we
+ # handle this case specially and assume that any reported
+ # version is newer than any indeterminate version
+ return False
+ try:
+ for i in range(3):
+ if self[i] < version[i]:
+ return True
+ elif self[i] > version[i]:
+ return False
+ rel = self._release_cmp(self[3], version[3])
+ if rel > 0:
+ return True
+ elif rel < 0:
+ return False
+ if self[4] < version[4]:
+ return True
+ else:
+ return False
+ except TypeError:
+ return self < Bcfg2VersionInfo(version)
+
+ def __eq__(self, version):
+ if version is None:
+ # older bcfg2 clients didn't report their version, so we
+ # handle this case specially and assume that any reported
+ # version is newer than any indeterminate version
+ return False
+ try:
+ rv = True
+ for i in range(len(self)):
+ rv &= self[i] == version[i]
+ return rv
+ except TypeError:
+ return self == Bcfg2VersionInfo(version)
+
+ def __ge__(self, version):
+ return not self < version
+
+ def __le__(self, version):
+ return not self > version