Merge pull request #21 from graze/docker

Docker!

Dockerfile

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+FROM php:5.6-cli
+
+RUN pecl install xdebug && \
+    echo "zend_extension=xdebug.so" >> "/usr/local/etc/php/conf.d/xdebug.ini"
+
+RUN ["docker-php-ext-install", "mbstring"]
+
+ADD . /opt/graze/queue
+
+WORKDIR /opt/graze/queue

Makefile

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+SHELL = /bin/sh
+
+.PHONY: install composer clean help
+.PHONY: test test-unit test-intergration test-coverage test-matrix
+
+.SILENT: help
+
+install: ## Download the depenedencies then build the image :rocket:.
+	make 'composer-install --optimize-autoloader --ignore-platform-reqs'
+	docker build --tag graze-queue:latest .
+
+composer-%: ## Run a composer command, `make "composer-<command> [...]"`.
+	docker run -it --rm \
+	-v $$(pwd):/app \
+	-v ~/.composer:/root/composer \
+	-v ~/.ssh/id_rsa:/root/.ssh/id_rsa:ro \
+	-v ~/.ssh/known_hosts:/root/.ssh/known_hosts:ro \
+	composer/composer:master --no-interaction $*
+
+
+test: ## Run the unit and intergration testsuites.
+test: test-unit test-intergration
+
+test-unit: ## Run the unit testsuite.
+	docker run --rm -t graze-queue \
+	vendor/bin/phpunit --testsuite unit
+
+test-intergration: ## Run the integration testsuite.
+	docker run --rm -t graze-queue \
+	vendor/bin/phpunit --testsuite integration
+
+test-coverage: ## Run the testsuites with coverage enabled.
+	docker run --rm -t graze-queue \
+	vendor/bin/phpunit --coverage-text --testsuite unit
+	docker run --rm -t graze-queue \
+	vendor/bin/phpunit --coverage-text --testsuite integration
+
+test-matrix:
+	docker run --rm -t -v $$(pwd):/opt/graze/queue -w /opt/graze/queue php:5.5-cli \
+	vendor/bin/phpunit --testsuite unit
+	docker run --rm -t -v $$(pwd):/opt/graze/queue -w /opt/graze/queue php:5.6-cli \
+	vendor/bin/phpunit --testsuite unit
+	docker run --rm -t -v $$(pwd):/opt/graze/queue -w /opt/graze/queue php:7.0-cli \
+	vendor/bin/phpunit --testsuite unit
+
+
+clean: ## Stop running containers and clean up an images.
+	docker rmi graze-queue:latest
+
+help: ## Show this help message.
+	echo "usage: make [target] ..."
+	echo ""
+	echo "targets:"
+	fgrep --no-filename "##" $(MAKEFILE_LIST) | fgrep --invert-match $$'\t' | sed -e 's/## //'