ci: add github workflow/action and remove travis ci

.github/workflows/php.yml

@@ -0,0 +1,41 @@
+name: PHP Check
+
+on:
+  push:
+   branches:
+      - '*'
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Cache Composer packages
+      id: composer-cache
+      uses: actions/cache@v2
+      with:
+        path: vendor
+        key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
+        restore-keys: ${{ runner.os }}-php-
+
+    - name: Install dependencies
+      if: steps.composer-cache.outputs.cache-hit != 'true'
+      run: composer install --prefer-dist --no-progress --no-suggest
+
+    - run: php -v
+
+    - name: Checking for sign off (GPG also accepted)
+      run: php ./vendor/simplemachines/build-tools/check-signed-off.php
+
+    - name: Checking file integrity
+      run: |
+        php ./vendor/simplemachines/build-tools/check-eof.php
+        php ./vendor/simplemachines/build-tools/check-smf-license.php
+        php ./vendor/simplemachines/build-tools/check-smf-languages.php
+        php ./vendor/simplemachines/build-tools/check-version.php
+
+    - name: Lint PHP files
+      run: vendor/bin/phplint . --exclude=vendor -w

.gitignore

@@ -73,3 +73,5 @@ Themes/default/scripts/minified.js
 Themes/default/css/minified.css
 upgrade-helper.php
 .vscode/
+
+vendor/

.scrutinizer.yml

@@ -1,8 +1,13 @@
 filter:
     excluded_paths:
         - '*.min.js'
-        - 'Sources/minify/*'
-        - 'Sources/ReCaptcha/*'
+        - 'Sources/minify/'
+        - 'Sources/random_compat/'
+        - 'Sources/ReCaptcha/'
+    dependency_paths:
+        - 'Sources/minify/'
+        - 'Sources/random_compat/'
+        - 'Sources/ReCaptcha/'
 checks:
     php:
         variable_existence: true

composer.json

@@ -0,0 +1,14 @@
+{
+    "name": "simplemachines/smf2.1",
+    "repositories": [
+        {
+            "url": "https://github.com/SimpleMachines/BuildTools.git",
+            "type": "vcs"
+        }
+    ],
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "require-dev": {
+        "simplemachines/build-tools": "dev-master"
+    }
+}