Update history and add release script

Author: oschwald

HISTORY.rst

@@ -3,6 +3,11 @@
 History
 -------
 
+1.2.2 (2016-11-21)
+++++++++++++++++++
+
+* Fix to the classifiers in ``setup.py``. No code changes.
+
 1.2.1 (2016-06-10)
 ++++++++++++++++++
 

dev-bin/release.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+set -eu -o pipefail
+
+changelog=$(cat HISTORY.rst)
+
+regex='
+([0-9]+\.[0-9]+\.[0-9]+) \(([0-9]{4}-[0-9]{2}-[0-9]{2})\)
+\+*
+
+((.|
+)*)
+'
+
+if [[ ! $changelog =~ $regex ]]; then
+      echo "Could not find date line in change log!"
+      exit 1
+fi
+
+version="${BASH_REMATCH[1]}"
+date="${BASH_REMATCH[2]}"
+notes="$(echo "${BASH_REMATCH[3]}" | sed -n -e '/^[0-9]\+\.[0-9]\+\.[0-9]\+/,$!p')"
+
+if [[ "$date" -ne  $(date +"%Y-%m-%d") ]]; then
+    echo "$date is not today!"
+    exit 1
+fi
+
+tag="v$version"
+
+if [ -n "$(git status --porcelain)" ]; then
+    echo ". is not clean." >&2
+    exit 1
+fi
+
+perl -pi -e "s/(?<=__version__ = ').+?(?=')/$version/gsm" maxminddb/__init__.py
+
+echo $"Test results:"
+python setup.py test
+
+echo $'\nDiff:'
+git diff
+
+echo $'\nRelease notes:'
+echo "$notes"
+
+read -e -p "Commit changes and push to origin? " should_push
+
+if [ "$should_push" != "y" ]; then
+    echo "Aborting"
+    exit 1
+fi
+
+git commit -m "Update for $tag" -a
+
+git push
+
+message="$version
+
+$notes"
+
+hub release create -m "$message" "$tag"
+
+git push --tags
+
+python setup.py release