Build PHAR using BOX, deploy tags to GitHub releases

Author: Majkl578

.gitignore

@@ -1,2 +1,5 @@
-vendor
-infection-log.txt
+/vendor
+/infection-log.txt
+/box.json
+/box.phar
+/dist

.travis.yml

@@ -12,6 +12,15 @@ before_script:
 git:
   depth: 99999
 
+deploy:
+  provider: releases
+  api_key:
+    secure: $DEPLOY_TOKEN_SECURE
+  file: dist/roave-backward-compatibility-check.phar
+  skip_cleanup: true
+  on:
+    tags: true
+
 jobs:
   include:
 
@@ -48,6 +57,10 @@ jobs:
       php: 7.2
       script: bin/roave-backward-compatibility-check --from=master --to=HEAD
 
+    - stage: Build release PHAR
+      php: 7.2
+      script: ./build-phar.sh
+
 cache:
   directories:
     - $HOME/.composer/cache

box.json.dist

@@ -0,0 +1,15 @@
+{
+    "compactors": [
+        "Herrera\\Box\\Compactor\\Php",
+        "Herrera\\Box\\Compactor\\Json"
+    ],
+    "compression": "GZ",
+    "main": "bin/roave-backward-compatibility-check.php",
+    "output": "dist/roave-backward-compatibility-check.phar",
+    "files-bin": [
+        "LICENSE",
+        "vendor/composer/composer/LICENSE"
+    ],
+    "chmod": "0755",
+    "git-version": "git-version"
+}

build-phar.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+if [ ! -f box.phar ]; then
+    wget https://github.com/humbug/box/releases/download/3.0.0-beta.4/box.phar -O box.phar
+fi
+
+# lock PHP to minimum allowed version
+composer config platform.php 7.2.0
+composer update --no-dev
+
+php box.phar compile
+
+git checkout composer.*
+composer install