Add Travis-CI build targets

Author: lisachenko

.gitignore

@@ -1,2 +1,3 @@
+build/
 vendor/
 composer.lock

.travis.coverage.sh

@@ -0,0 +1,5 @@
+set -x
+if [ "TRAVIS_JOB_NAME" = '7.4-rc' ] ; then
+    wget https://scrutinizer-ci.com/ocular.phar
+    php ocular.phar code-coverage:upload --format=php-clover ./build/clover.xml
+fi

.travis.yml

@@ -0,0 +1,15 @@
+services:
+  - docker
+matrix:
+  include:
+    - language: php
+      name: "7.4-rc"
+      after_script:
+        - sh .travis.coverage.sh
+      env:
+        - COVERAGE_FLAGS="--coverage-text --coverage-clover=build/clover.xml"
+
+before_script:
+  - docker build --build-arg PHP_VERSION=${TRAVIS_JOB_NAME} -t z-engine .
+script:
+  - docker run z-engine /usr/src/z-engine/vendor/bin/phpunit --verbose ${COVERAGE_FLAGS} --colors

Dockerfile

@@ -0,0 +1,11 @@
+ARG PHP_VERSION
+FROM php:$PHP_VERSION
+RUN apt-get update \
+    && apt-get install -y libffi-dev git unzip \
+    && docker-php-source extract \
+    && docker-php-ext-install ffi \
+    && docker-php-source delete
+WORKDIR /usr/src/z-engine
+RUN curl -sS https://getcomposer.org/installer | php && mv ./composer.phar /usr/local/bin/composer
+COPY . /usr/src/z-engine
+RUN composer install