Adding fancier version checks to allow to the cache to be preserved longer

[theonering] / src / util / misc.py

diff --git a/src/util/misc.py b/src/util/misc.py
index 69a5b09..cf5c22a 100644 (file)
--- a/src/util/misc.py
+++ b/src/util/misc.py
@@ -718,3 +718,40 @@ def is_valid_number(number):
        @returns If This number be called ( syntax validation only )
        """
        return _VALIDATE_RE.match(number) is not None
        @returns If This number be called ( syntax validation only )
        """
        return _VALIDATE_RE.match(number) is not None

+
+
+def parse_version(versionText):
+       """
+       >>> parse_version("0.5.2")
+       [0, 5, 2]
+       """
+       return [
+               int(number)
+               for number in versionText.split(".")
+       ]
+
+
+def compare_versions(leftParsedVersion, rightParsedVersion):
+       """
+       >>> compare_versions([0, 1, 2], [0, 1, 2])
+       0
+       >>> compare_versions([0, 1, 2], [0, 1, 3])
+       -1
+       >>> compare_versions([0, 1, 2], [0, 2, 2])
+       -1
+       >>> compare_versions([0, 1, 2], [1, 1, 2])
+       -1
+       >>> compare_versions([0, 1, 3], [0, 1, 2])
+       1
+       >>> compare_versions([0, 2, 2], [0, 1, 2])
+       1
+       >>> compare_versions([1, 1, 2], [0, 1, 2])
+       1
+       """
+       for left, right in zip(leftParsedVersion, rightParsedVersion):
+               if left < right:
+                       return -1
+               elif right < left:
+                       return 1
+       else:
+               return 0