Support PHP 8.0 (#8)

.github/workflows/ci.yaml

@@ -20,6 +20,7 @@ jobs:
                     - '7.2'
                     - '7.3'
                     - '7.4'
+                    - '8.0'
 
         name: PHP ${{ matrix.php }}
         steps:

.travis.yml

@@ -7,7 +7,9 @@ php:
   - '7.0'
   - '7.1'
   - '7.2'
-  - nightly
+  - '7.3'
+  - '7.4'
+  - '8.0'
 
 matrix:
   fast_finish: true
@@ -26,6 +28,7 @@ cache:
     - "$HOME/.composer/cache"
 
 before_install:
+  - composer self-update --1
   - |
     if [ "$TRAVIS_PHP_VERSION" = "nightly" ]; then
       COMPOSER_FLAGS="$COMPOSER_FLAGS --ignore-platform-reqs"

Makefile

@@ -11,7 +11,7 @@ help:
 ##---------------------------------------------------------------------------
 
 test:		## Run all the tests
-test: vendor fixtures/vendor fixtures/vendor-bin/stub/vendor
+test: vendor fixtures/vendor fixtures/vendor-bin/sub/vendor
 	composer validate --no-interaction
 
 	php tests/root.php > root.actual
@@ -34,5 +34,5 @@ vendor:
 fixtures/vendor:
 	composer update --working-dir fixtures --no-interaction ${COMPOSER_FLAGS}
 
-fixtures/vendor-bin/stub/vendor:
+fixtures/vendor-bin/sub/vendor:
 	composer update --working-dir fixtures/vendor-bin/sub --no-interaction ${COMPOSER_FLAGS}

composer.json

@@ -15,7 +15,7 @@
         }
     },
     "require": {
-        "php": "^5.4 || ^7.0",
+        "php": "^5.4 || ^7.0 || ^8.0",
         "composer-plugin-api": "^1.0",
         "wikimedia/composer-merge-plugin": "^1.3"
     },

fixtures/vendor-bin/sub/composer.json

@@ -1,5 +1,15 @@
 {
     "require": {
         "theofidry/composer-inheritance-plugin": "dev-master"
+    },
+    "autoload": {
+        "psr-4": {
+            "Acme\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Acme\\": "dev"
+        }
     }
 }