NPM_PACKAGE := $(shell node -e 'process.stdout.write(require("./package.json").name)')
NPM_VERSION := $(shell node -e 'process.stdout.write(require("./package.json").version)')

TMP_PATH    := /tmp/${NPM_PACKAGE}-$(shell date +%s)

REMOTE_NAME ?= origin
REMOTE_REPO ?= $(shell git config --get remote.${REMOTE_NAME}.url)

CURR_HEAD   := $(firstword $(shell git show-ref --hash HEAD | cut -b -6) master)
GITHUB_PROJ := https://github.com/nodeca/${NPM_PACKAGE}


help:
	echo "make help       - Print this help"
	echo "make lint       - Lint sources with JSHint"
	echo "make test       - Lint sources and run all tests"
	echo "make browserify - Build browserified version"
	echo "make gh-pages   - Build and push API docs into gh-pages branch"
	echo "make publish    - Set new version tag and publish npm package"
	echo "make todo       - Find and list all TODOs"


lint:
	./node_modules/.bin/eslint .


test: lint
	@node -e "require('./bower.json')"
	@node -e "require('./package.json')"
	./node_modules/.bin/mocha -R spec


demo: lint
	rm -rf ./demo
	mkdir ./demo
	cp ./node_modules/codemirror/lib/codemirror.css ./demo/
	cp ./support/demo_template/index.html ./demo/
	cp ./support/demo_template/demo.css ./demo/
	./node_modules/.bin/browserify ./support/demo_template/demo.js -r esprima > ./demo/demo.js


coverage:
	rm -rf coverage
	./node_modules/.bin/istanbul cover node_modules/.bin/_mocha


gh-pages: demo
	@if test -z ${REMOTE_REPO} ; then \
		echo 'Remote repo URL not found' >&2 ; \
		exit 128 ; \
		fi
	mkdir ${TMP_PATH}
	cp -r demo/* ${TMP_PATH}
	touch ${TMP_PATH}/.nojekyll
	cd ${TMP_PATH} && \
		git init && \
		git add . && \
		git commit -q -m 'Updated browserified demo'
	cd ${TMP_PATH} && \
		git remote add remote ${REMOTE_REPO} && \
		git push --force remote +master:gh-pages
	rm -rf ${TMP_PATH}


publish:
	@if test 0 -ne `git status --porcelain | wc -l` ; then \
		echo "Unclean working tree. Commit or stash changes first." >&2 ; \
		exit 128 ; \
		fi
	@if test 0 -ne `git fetch ; git status | grep '^# Your branch' | wc -l` ; then \
		echo "Local/Remote history differs. Please push/pull changes." >&2 ; \
		exit 128 ; \
		fi
	@if test 0 -ne `git tag -l ${NPM_VERSION} | wc -l` ; then \
		echo "Tag ${NPM_VERSION} exists. Update package.json" >&2 ; \
		exit 128 ; \
		fi
	git tag ${NPM_VERSION} && git push origin ${NPM_VERSION}
	npm publish ${GITHUB_PROJ}/tarball/${NPM_VERSION}


browserify:
	rm -rf ./dist
	mkdir dist
	# Browserify
	( echo -n "/* ${NPM_PACKAGE} ${NPM_VERSION} ${GITHUB_PROJ} */" ; \
		./node_modules/.bin/browserify -r ./ -s jsyaml \
		) > dist/js-yaml.js
	# Minify
	./node_modules/.bin/uglifyjs dist/js-yaml.js -c -m \
		--preamble "/* ${NPM_PACKAGE} ${NPM_VERSION} ${GITHUB_PROJ} */" \
		> dist/js-yaml.min.js


todo:
	grep 'TODO' -n -r ./lib 2>/dev/null || test true


.PHONY: publish lint test dev-deps gh-pages todo coverage demo
.SILENT: help lint test todo coverage