Add initial sources

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+
+[*.{md,yaml,yml,json}]
+indent_size = 2
+
+[Makefile]
+indent_style = tab

.gitattributes

@@ -0,0 +1,30 @@
+* text=auto eol=lf
+*.bat text eol=crlf
+*.cmd text eol=crlf
+*.ahk text eol=crlf
+
+
+*.gitattributes text
+.gitignore      text
+.editorconfig   text
+*.md            text diff=markdown
+
+#
+# Exclude files from exporting
+#
+
+/.gitattributes  export-ignore
+/.gitignore      export-ignore
+/.editorconfig   export-ignore
+/.github/        export-ignore
+/tests/          export-ignore
+/var/            export-ignore
+/composer.lock   export-ignore
+/phpunit.xml     export-ignore
+/psalm.xml       export-ignore
+/phpstan.neon    export-ignore
+
+#
+# Enable syntax highlighting for files with `.gitattributes` extensions.
+#
+*.gitattributes linguist-language=gitattributes

.github/workflows/ci.yaml

@@ -0,0 +1,57 @@
+name: Continuous Integration
+
+on:
+  pull_request: ~
+  push:
+    branches: ['master']
+
+permissions:
+  contents: read
+
+jobs:
+  composer-validate:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [8.2]
+    steps:
+      - uses: actions/checkout@v3.3.0
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          tools: composer:v2
+          coverage: none
+      - run: composer validate --strict --ansi
+
+  composer-normalize:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [8.2]
+    steps:
+      - uses: actions/checkout@v3.3.0
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          tools: composer:v2
+          coverage: none
+      - uses: ramsey/composer-install@v2
+        with:
+          composer-options: --optimize-autoloader
+      - run: composer normalize --dry-run --diff --ansi
+
+  check:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [8.2]
+    steps:
+      - uses: actions/checkout@v3.3.0
+      - uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          tools: composer:v2
+      - uses: ramsey/composer-install@v2
+        with:
+          composer-options: --optimize-autoloader
+      - run: composer check

.gitignore

@@ -0,0 +1,2 @@
+/vendor
+/var

README.md

@@ -0,0 +1,3 @@
+## Introduction
+
+This package implements the PSR-15 [`MiddlewareInterface`](https://www.php-fig.org/psr/psr-15/#22-psrhttpservermiddlewareinterface)

composer.json

@@ -0,0 +1,67 @@
+{
+    "name": "kavw/psr15-middleware",
+    "description": "The PSR-15 middleware implementation",
+    "license": "MIT",
+    "type": "library",
+    "authors": [
+        {
+            "name": "Anton Kurnosov",
+            "email": "kavww@proton.me"
+        }
+    ],
+    "require": {
+        "php": "^8.2",
+        "psr/http-server-handler": "^1.0",
+        "psr/http-server-middleware": "^1.0"
+    },
+    "require-dev": {
+        "ergebnis/composer-normalize": "^2.36",
+        "nyholm/psr7": "^1.8",
+        "phpstan/phpstan": "^1.10",
+        "phpunit/phpunit": "^10.3",
+        "squizlabs/php_codesniffer": "^3.7",
+        "vimeo/psalm": "^5.15"
+    },
+    "minimum-stability": "stable",
+    "autoload": {
+        "psr-4": {
+            "Kavw\\Psr15Middleware\\": "src/",
+            "Kavw\\Psr15Middleware\\Tests\\": "tests/"
+        }
+    },
+    "config": {
+        "allow-plugins": {
+            "composer/package-versions-deprecated": true,
+            "ergebnis/composer-normalize": true
+        },
+        "sort-packages": true
+    },
+    "scripts": {
+        "check": [
+            "@cs",
+            "@stan",
+            "@psalm",
+            "@test"
+        ],
+        "cs": [
+            "Composer\\Config::disableProcessTimeout",
+            "phpcs"
+        ],
+        "cs-fix": [
+            "Composer\\Config::disableProcessTimeout",
+            "phpcbf ./src"
+        ],
+        "psalm": [
+            "Composer\\Config::disableProcessTimeout",
+            "psalm"
+        ],
+        "stan": [
+            "Composer\\Config::disableProcessTimeout",
+            "phpstan"
+        ],
+        "test": [
+            "Composer\\Config::disableProcessTimeout",
+            "phpunit"
+        ]
+    }
+}