Improve build automation

Author: sebastianbergmann

.gitattributes

@@ -1 +1,3 @@
+/tools export-ignore
+
 *.php diff=php

.travis.yml

@@ -22,12 +22,11 @@ env:
     - DEFAULT_COMPOSER_FLAGS="--no-interaction --no-ansi --no-progress --no-suggest"
 
 before_install:
-  - composer self-update
-  - composer clear-cache
+  - ./tools/composer clear-cache
 
 install:
-  - if [[ "$DEPENDENCIES" = 'high' ]]; then travis_retry composer update $DEFAULT_COMPOSER_FLAGS; fi
-  - if [[ "$DEPENDENCIES" = 'low' ]]; then travis_retry composer update $DEFAULT_COMPOSER_FLAGS --prefer-lowest; fi
+  - if [[ "$DEPENDENCIES" = 'high' ]]; then travis_retry ./tools/composer update $DEFAULT_COMPOSER_FLAGS; fi
+  - if [[ "$DEPENDENCIES" = 'low' ]]; then travis_retry ./tools/composer update $DEFAULT_COMPOSER_FLAGS --prefer-lowest; fi
 
 before_script:
   - |
@@ -53,3 +52,12 @@ after_success:
 notifications:
   email: false
 
+jobs:
+  include:
+    - stage: Static Code Analysis
+      php: 7.3
+      env: php-cs-fixer
+      install:
+        - phpenv config-rm xdebug.ini
+      script:
+        - ./tools/php-cs-fixer fix --dry-run -v --show-progress=dots --diff-format=udiff

build.xml

@@ -1,19 +1,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project name="php-code-coverage" default="setup">
-    <target name="setup" depends="clean,composer"/>
+    <target name="setup" depends="clean,install-dependencies"/>
 
     <target name="clean" description="Cleanup build artifacts">
         <delete dir="${basedir}/vendor"/>
         <delete file="${basedir}/composer.lock"/>
     </target>
 
-    <target name="composer" depends="clean" description="Install dependencies with Composer">
-        <exec executable="composer" taskname="composer">
+    <target name="install-dependencies" depends="clean" description="Install dependencies with Composer">
+        <exec executable="${basedir}/tools/composer" taskname="composer">
             <arg value="update"/>
             <arg value="--no-interaction"/>
             <arg value="--no-progress"/>
             <arg value="--no-ansi"/>
             <arg value="--no-suggest"/>
         </exec>
     </target>
+
+    <target name="update-tools">
+        <exec executable="phive">
+            <arg value="--no-progress"/>
+            <arg value="update"/>
+        </exec>
+
+        <exec executable="${basedir}/tools/composer">
+            <arg value="self-update"/>
+        </exec>
+    </target>
 </project>

phive.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phive xmlns="https://phar.io/phive">
+  <phar name="php-cs-fixer" version="^2.14" installed="2.14.2" location="./tools/php-cs-fixer" copy="true"/>
+</phive>