Support php8 (#168)

* Enable upgrade to PHP 8.0

Co-authored-by: Steven Garcia <stevenbgarcia@protonmail.com>

.travis.yml

@@ -1,13 +1,14 @@
 language: php
+dist: bionic
 
 php:
   - 7.3
   - 7.4
+  - 8.0
 
 env:
   matrix:
-    - PREFER_LOWEST="--prefer-lowest" PHPUNIT_VERSION="^8.2"
-    - PREFER_LOWEST="" PHPUNIT_VERSION="^8.2"
+    - PREFER_LOWEST="--prefer-lowest" PHPUNIT_VERSION="~8.5.10"
     - PREFER_LOWEST="" PHPUNIT_VERSION="~9.0"
     - PREFER_LOWEST="" PHPUNIT_VERSION="~9.3"
     - PREFER_LOWEST="" PHPUNIT_VERSION="~9.5"
@@ -20,7 +21,8 @@ before_script:
   - phpenv config-rm xdebug.ini
   - composer selfupdate
   - composer require "phpunit/phpunit:$PHPUNIT_VERSION" --no-update;
-  - composer update $PREFER_LOWEST
+  - if [ ${TRAVIS_PHP_VERSION:0:3} == "8.0" ]; then composer require "symfony/config:^3.4.44|^4.4.12" "symfony/dependency-injection:^3.4.44|^4.4.12" --no-update; fi;
+  - composer update $PREFER_LOWEST --prefer-dist --no-interaction --no-progress --ignore-platform-req=php
 
 script:
   - bin/phpstan.phar analyze src tests

composer.json

@@ -9,16 +9,16 @@
         }
     ],
     "require": {
-        "php": "^7.3",
-        "symfony/console": "^3.4|^4.2|^5.0",
-        "symfony/stopwatch": "^3.4|^4.2|^5.0",
-        "symfony/process": "^3.4|^4.2|^5.0",
+        "php": "^7.3 || ^8.0",
+        "symfony/console": "^3.4|^4.4|^5.0",
+        "symfony/stopwatch": "^3.4|^4.4|^5.0",
+        "symfony/process": "^3.4|^4.4|^5.0",
         "doctrine/collections": "^1.2"
     },
     "require-dev": {
-        "behat/behat": "^3.3",
-        "phpstan/phpstan": "^0.12.48",
-        "phpstan/phpstan-phpunit": "^0.12.16"
+        "behat/behat": "^3.6",
+        "phpstan/phpstan": "^0.12.78",
+        "phpstan/phpstan-phpunit": "^0.12.17"
     },
     "config": {
         "bin-dir": "bin/"

src/Process/ProcessFactory.php

@@ -133,7 +133,9 @@ private static function getWindowsBinCmd(): string
             return 'bin\phpunit {}';
         }
 
-        if (file_exists(getenv('APPDATA').'\Composer\vendor\bin\phpunit')) {
+        /** @var string $appData */
+        $appData = getenv('APPDATA');
+        if (file_exists($appData.'\Composer\vendor\bin\phpunit')) {
             return '%APPDATA%\Composer\vendor\bin\phpunit {}';
         }
 
@@ -150,7 +152,9 @@ private static function getUnixBinCmd(): string
             return 'bin/phpunit {}';
         }
 
-        if (file_exists(getenv('HOME').'/.composer/vendor/bin/phpunit')) {
+        /** @var string $home */
+        $home = getenv('HOME');
+        if (file_exists($home.'/.composer/vendor/bin/phpunit')) {
             return '~/.composer/vendor/bin/phpunit {}';
         }