[libgweather] data/check-timezones.sh: Add a check for obsolete tzdata identifiers used in Locations.xml.in.

[Dan Winship <danw src gnome org>]

commit ab44c75dc97ce597cb7703f7bb85b62fce65d4a2
Author: Philippe Gauthier <philippe gauthier deuxpi ca>
Date:   Thu Oct 29 19:22:20 2009 -0400

    data/check-timezones.sh: Add a check for obsolete tzdata identifiers used in Locations.xml.in.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=559031

 data/check-timezones.sh |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/data/check-timezones.sh b/data/check-timezones.sh
index 79c8ba4..ab3bf08 100755
--- a/data/check-timezones.sh
+++ b/data/check-timezones.sh
@@ -24,4 +24,17 @@ if [ -n "$bad" ]; then
     echo "Invalid timezones in ${locations}: $bad" 1>&2
     exit 1
 fi
+
+used=`mktemp`
+obsolete=`mktemp`
+
+sed -ne 's/.*<tz-hint>\(.*\)<.*/\1/p' $locations | sort -u > $used
+sed -ne 's/.*<obsoletes>\(.*\)<.*/\1/p' $locations | sort -u > $obsolete
+bad=`comm -12 $used $obsolete`
+rm $used $obsolete
+
+if [ -n "$bad" ]; then
+    echo "Obsolete <tz-hint> timezones in ${locations}: $bad" 1>&2
+    exit 1
+fi
 exit 0