sync version.py with that of silx

version.py

+#!/usr/bin/env python
 # coding: utf-8
 # /*##########################################################################
 #
-# Copyright (c) 2015-2016 European Synchrotron Radiation Facility
+# Copyright (c) 2015-2017 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -22,13 +23,48 @@
 # THE SOFTWARE.
 #
 # ###########################################################################*/
-"""Unique place where the version number is defined."""
+"""Unique place where the version number is defined.
 
+provides:
+* version = "1.2.3" or "1.2.3-beta4"
+* version_info = named tuple (1,2,3,"beta",4)
+* hexversion: 0x010203B4
+* strictversion = "1.2.3b4
+* debianversion = "1.2.3~beta4"
+* calc_hexversion: the function to transform a version_tuple into an integer
+
+This is called hexversion since it only really looks meaningful when viewed as the
+result of passing it to the built-in hex() function.
+The version_info value may be used for a more human-friendly encoding of the same information.
+
+The hexversion is a 32-bit number with the following layout:
+Bits (big endian order)     Meaning
+1-8     PY_MAJOR_VERSION (the 2 in 2.1.0a3)
+9-16     PY_MINOR_VERSION (the 1 in 2.1.0a3)
+17-24     PY_MICRO_VERSION (the 0 in 2.1.0a3)
+25-28     PY_RELEASE_LEVEL (0xA for alpha, 0xB for beta, 0xC for release candidate and 0xF for final)
+29-32     PY_RELEASE_SERIAL (the 3 in 2.1.0a3, zero for final releases)
+
+Thus 2.1.0a3 is hexversion 0x020100a3.
+
+"""
+
+from __future__ import absolute_import, print_function, division
 __authors__ = ["Jérôme Kieffer"]
 __license__ = "MIT"
-__date__ = "18/10/2016"
+__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
+__date__ = "28/02/2018"
+__status__ = "production"
+__docformat__ = 'restructuredtext'
+__all__ = ["date", "version_info", "strictversion", "hexversion", "debianversion",
+           "calc_hexversion"]
 
-# Do not copy into the source folder !
+RELEASE_LEVEL_VALUE = {"dev": 0,
+                       "alpha": 10,
+                       "beta": 11,
+                       "gamma": 12,
+                       "rc": 13,
+                       "final": 15}
 
 MAJOR = 0
 MINOR = 6
@@ -36,29 +72,48 @@ MICRO = 0
 RELEV = "dev"  # <16
 SERIAL = 0  # <16
 
+date = __date__
+
 from collections import namedtuple
-_version_info = namedtuple(
-    "version_info", ["major", "minor", "micro", "releaselevel", "serial"])
+_version_info = namedtuple("version_info", ["major", "minor", "micro", "releaselevel", "serial"])
 
 version_info = _version_info(MAJOR, MINOR, MICRO, RELEV, SERIAL)
 
-strictversion = version = "%d.%d.%d" % version_info[:3]
-
-RELEASE_LEVEL_VALUE = {"dev": 0,
-                       "alpha": 10,
-                       "beta": 11,
-                       "rc": 12,
-                       "final": 15}
-
+strictversion = version = debianversion = "%d.%d.%d" % version_info[:3]
 if version_info.releaselevel != "final":
     version += "-%s%s" % version_info[-2:]
+    debianversion += "~adev%i" % version_info[-1] if RELEV == "dev" else "~%s%i" % version_info[-2:]
     prerel = "a" if RELEASE_LEVEL_VALUE.get(version_info[3], 0) < 10 else "b"
     if prerel not in "ab":
         prerel = "a"
     strictversion += prerel + str(version_info[-1])
 
-hexversion = version_info[4]
-hexversion |= RELEASE_LEVEL_VALUE.get(version_info[3], 0) * 1 << 4
-hexversion |= version_info[2] * 1 << 8
-hexversion |= version_info[1] * 1 << 16
-hexversion |= version_info[0] * 1 << 24
+
+def calc_hexversion(major=0, minor=0, micro=0, releaselevel="dev", serial=0):
+    """Calculate the hexadecimal version number from the tuple version_info:
+
+    :param major: integer
+    :param minor: integer
+    :param micro: integer
+    :param relev: integer or string
+    :param serial: integer
+    :return: integer always increasing with revision numbers
+    """
+    try:
+        releaselevel = int(releaselevel)
+    except ValueError:
+        releaselevel = RELEASE_LEVEL_VALUE.get(releaselevel, 0)
+
+    hex_version = int(serial)
+    hex_version |= releaselevel * 1 << 4
+    hex_version |= int(micro) * 1 << 8
+    hex_version |= int(minor) * 1 << 16
+    hex_version |= int(major) * 1 << 24
+    return hex_version
+
+
+hexversion = calc_hexversion(*version_info)
+
+
+if __name__ == "__main__":
+    print(version)