The localization module now warns when finding an out of date translation.

While allowing us to include translations that are not quite up to date
with the current development branch in releases, it also serves to inform
the user that they are using a translation that is broken or incomplete.

gitinspector/gitinspector.py

@@ -59,6 +59,8 @@ class Runner:
 		self.useweeks = False
 
 	def output(self):
+		localization.check_compatibility(version.__version__)
+
 		if not self.localize_output:
 			localization.disable()
 

gitinspector/localization.py

@@ -28,6 +28,7 @@ except:
 import gettext
 import locale
 import os
+import re
 import sys
 import time
 
@@ -74,6 +75,16 @@ def init():
 		__installed__ = True
 		__translation__.install(True)
 
+def check_compatibility(version):
+	if isinstance(__translation__, gettext.GNUTranslations):
+		header_pattern = re.compile ("^([^:\n]+): *(.*?) *$", re.MULTILINE)
+		header_entries = dict(header_pattern.findall(_("")))
+
+		if (header_entries["Project-Id-Version"] != "gitinspector {0}".format(version)):
+			print("WARNING: The translation for your system locale is not up to date with the current gitinspector "
+			      "version. The current maintainer of this locale is {0}.".format(header_entries["Last-Translator"]),
+			      file=sys.stderr)
+
 def get_date():
 	if __enabled__ and isinstance(__translation__, gettext.GNUTranslations):
 		date = time.strftime("%x")