Unify Makefile, .gitignore and update readme
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..aa8e42a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.kitchen
+tests/build/
+*.swp
+*.pyc
+.ropeproject
diff --git a/Makefile b/Makefile
index fc83783..1043fbe 100644
--- a/Makefile
+++ b/Makefile
@@ -1,12 +1,38 @@
 DESTDIR=/
 SALTENVDIR=/usr/share/salt-formulas/env
 RECLASSDIR=/usr/share/salt-formulas/reclass
-FORMULANAME=$(shell grep name: metadata.yml|head -1|cut -d : -f 2|grep -Eo '[a-z0-9\-]*')
+FORMULANAME=$(shell grep name: metadata.yml|head -1|cut -d : -f 2|grep -Eo '[a-z0-9\-\_]*')
+VERSION=$(shell grep version: metadata.yml|head -1|cut -d : -f 2|grep -Eo '[a-z0-9\.\-\_]*')
+VERSION_MAJOR := $(shell echo $(VERSION)|cut -d . -f 1-2)
+VERSION_MINOR := $(shell echo $(VERSION)|cut -d . -f 3)
+
+NEW_MAJOR_VERSION ?= $(shell date +%Y.%m|sed 's,\.0,\.,g')
+NEW_MINOR_VERSION ?= $(shell /bin/bash -c 'echo $$[ $(VERSION_MINOR) + 1 ]')
+
+MAKE_PID := $(shell echo $$PPID)
+JOB_FLAG := $(filter -j%, $(subst -j ,-j,$(shell ps T | grep "^\s*$(MAKE_PID).*$(MAKE)")))
+
+ifneq ($(subst -j,,$(JOB_FLAG)),)
+JOBS := $(subst -j,,$(JOB_FLAG))
+else
+JOBS := 1
+endif
+
+KITCHEN_LOCAL_YAML?=.kitchen.yml
+KITCHEN_OPTS?="--concurrency=$(JOBS)"
+KITCHEN_OPTS_CREATE?=""
+KITCHEN_OPTS_CONVERGE?=""
+KITCHEN_OPTS_VERIFY?=""
+KITCHEN_OPTS_TEST?=""
 
 all:
 	@echo "make install - Install into DESTDIR"
 	@echo "make test    - Run tests"
+	@echo "make kitchen - Run Kitchen CI tests (create, converge, verify)"
 	@echo "make clean   - Cleanup after tests run"
+	@echo "make release-major  - Generate new major release"
+	@echo "make release-minor  - Generate new minor release"
+	@echo "make changelog      - Show changes since last release"
 
 install:
 	# Formula
@@ -14,6 +40,7 @@
 	cp -a $(FORMULANAME) $(DESTDIR)/$(SALTENVDIR)/
 	[ ! -d _modules ] || cp -a _modules $(DESTDIR)/$(SALTENVDIR)/
 	[ ! -d _states ] || cp -a _states $(DESTDIR)/$(SALTENVDIR)/ || true
+	[ ! -d _grains ] || cp -a _grains $(DESTDIR)/$(SALTENVDIR)/ || true
 	# Metadata
 	[ -d $(DESTDIR)/$(RECLASSDIR)/service/$(FORMULANAME) ] || mkdir -p $(DESTDIR)/$(RECLASSDIR)/service/$(FORMULANAME)
 	cp -a metadata/service/* $(DESTDIR)/$(RECLASSDIR)/service/$(FORMULANAME)
@@ -21,6 +48,71 @@
 test:
 	[ ! -d tests ] || (cd tests; ./run_tests.sh)
 
+release-major: check-changes
+	@echo "Current version is $(VERSION), new version is $(NEW_MAJOR_VERSION)"
+	@[ $(VERSION_MAJOR) != $(NEW_MAJOR_VERSION) ] || (echo "Major version $(NEW_MAJOR_VERSION) already released, nothing to do. Do you want release-minor?" && exit 1)
+	echo "$(NEW_MAJOR_VERSION)" > VERSION
+	sed -i 's,version: .*,version: "$(NEW_MAJOR_VERSION)",g' metadata.yml
+	[ ! -f debian/changelog ] || dch -v $(NEW_MAJOR_VERSION) -m --force-distribution -D `dpkg-parsechangelog -S Distribution` "New version"
+	make genchangelog-$(NEW_MAJOR_VERSION)
+	(git add -u; git commit -m "Version $(NEW_MAJOR_VERSION)")
+	git tag -s -m $(NEW_MAJOR_VERSION) $(NEW_MAJOR_VERSION)
+
+release-minor: check-changes
+	@echo "Current version is $(VERSION), new version is $(VERSION_MAJOR).$(NEW_MINOR_VERSION)"
+	echo "$(VERSION_MAJOR).$(NEW_MINOR_VERSION)" > VERSION
+	sed -i 's,version: .*,version: "$(VERSION_MAJOR).$(NEW_MINOR_VERSION)",g' metadata.yml
+	[ ! -f debian/changelog ] || dch -v $(VERSION_MAJOR).$(NEW_MINOR_VERSION) -m --force-distribution -D `dpkg-parsechangelog -S Distribution` "New version"
+	make genchangelog-$(VERSION_MAJOR).$(NEW_MINOR_VERSION)
+	(git add -u; git commit -m "Version $(VERSION_MAJOR).$(NEW_MINOR_VERSION)")
+	git tag -s -m $(NEW_MAJOR_VERSION) $(VERSION_MAJOR).$(NEW_MINOR_VERSION)
+
+check-changes:
+	@git log --pretty=oneline --decorate $(VERSION)..HEAD | grep -Eqc '.*' || (echo "No new changes since version $(VERSION)"; exit 1)
+
+changelog:
+	git log --pretty=short --invert-grep --grep="Merge pull request" --decorate $(VERSION)..HEAD
+
+genchangelog: genchangelog-$(VERSION_MAJOR).$(NEW_MINOR_VERSION)
+
+genchangelog-%:
+	$(eval NEW_VERSION := $(patsubst genchangelog-%,%,$@))
+	(echo "=========\nChangelog\n=========\n"; \
+	(echo $(NEW_VERSION);git tag) | sort -r | grep -E '^[0-9\.]+' | while read i; do \
+	    cur=$$i; \
+	    test $$i = $(NEW_VERSION) && i=HEAD; \
+	    prev=`(echo $(NEW_VERSION);git tag)|sort|grep -E '^[0-9\.]+'|grep -B1 "$$cur\$$"|head -1`; \
+	    echo "Version $$cur\n=============================\n"; \
+	    git log --pretty=short --invert-grep --grep="Merge pull request" --decorate $$prev..$$i; \
+	    echo; \
+	done) > CHANGELOG.rst
+
+kitchen-check:
+	@[ -e $(KITCHEN_LOCAL_YAML) ] || (echo "Kitchen tests not available, there's no $(KITCHEN_LOCAL_YAML)." && exit 1)
+
+kitchen: kitchen-check kitchen-create kitchen-converge kitchen-verify kitchen-list
+
+kitchen-create: kitchen-check
+	kitchen create ${KITCHEN_OPTS} ${KITCHEN_OPTS_CREATE}
+	[ "$(shell echo $(KITCHEN_LOCAL_YAML)|grep -Eo docker)" = "docker" ] || sleep 120
+
+kitchen-converge: kitchen-check
+	kitchen converge ${KITCHEN_OPTS} ${KITCHEN_OPTS_CONVERGE} &&\
+	kitchen converge ${KITCHEN_OPTS} ${KITCHEN_OPTS_CONVERGE}
+
+kitchen-verify: kitchen-check
+	[ ! -d tests/integration ] || kitchen verify -t tests/integration ${KITCHEN_OPTS} ${KITCHEN_OPTS_VERIFY}
+	[ -d tests/integration ]   || kitchen verify ${KITCHEN_OPTS} ${KITCHEN_OPTS_VERIFY}
+
+kitchen-test: kitchen-check
+	[ ! -d tests/integration ] || kitchen test -t tests/integration ${KITCHEN_OPTS} ${KITCHEN_OPTS_TEST}
+	[ -d tests/integration ]   || kitchen test ${KITCHEN_OPTS} ${KITCHEN_OPTS_TEST}
+
+kitchen-list: kitchen-check
+	kitchen list
+
 clean:
+	[ ! -x "$(shell which kitchen)" ] || kitchen destroy
+	[ ! -d .kitchen ] || rm -rf .kitchen
 	[ ! -d tests/build ] || rm -rf tests/build
 	[ ! -d build ] || rm -rf build
diff --git a/README.rst b/README.rst
index 0ec286e..e434f3e 100644
--- a/README.rst
+++ b/README.rst
@@ -70,3 +70,36 @@
 * http://duncanlock.net/blog/2013/08/27/comprehensive-linux-backups-with-etckeeper-backupninja/
 * https://github.com/riseuplabs/puppet-backupninja
 * http://www.ushills.co.uk/2008/02/backup-with-backupninja.html
+
+Documentation and Bugs
+======================
+
+To learn how to install and update salt-formulas, consult the documentation
+available online at:
+
+    http://salt-formulas.readthedocs.io/
+
+In the unfortunate event that bugs are discovered, they should be reported to
+the appropriate issue tracker. Use Github issue tracker for specific salt
+formula:
+
+    https://github.com/salt-formulas/salt-formula-backupninja/issues
+
+For feature requests, bug reports or blueprints affecting entire ecosystem,
+use Launchpad salt-formulas project:
+
+    https://launchpad.net/salt-formulas
+
+You can also join salt-formulas-users team and subscribe to mailing list:
+
+    https://launchpad.net/~salt-formulas-users
+
+Developers wishing to work on the salt-formulas projects should always base
+their work on master branch and submit pull request against specific formula.
+
+    https://github.com/salt-formulas/salt-formula-backupninja
+
+Any questions or feedback is always welcome so feel free to join our IRC
+channel:
+
+    #salt-formulas @ irc.freenode.net