add makefile

Makefile

@@ -0,0 +1,18 @@
+get-latest-tag:
+	git describe --tags --abbrev=0
+
+version-bump-patch:
+	make version-bump type=patch
+
+version-bump-minor:
+	make version-bump type=minor
+
+version-bump-major:
+	make version-bump type=major
+
+fetch-tags:
+	git fetch --all --tags
+
+version-bump: fetch-tags
+	[ "${type}" ] || ( echo "'type' not provided [patch, minor, major]"; exit 1 )
+	bump2version --current-version $(shell git describe --tags --abbrev=0) ${type} --list --tag --serialize v{major}.{minor}.{patch} --tag-name {new_version}  | grep new_version | sed -r s,"^.*=",, | xargs git push origin