add Docker and Drone boilerplate

.drone.yml

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+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: install
+    image: composer
+    volumes:
+      - name: composer-cache
+        path: /tmp/cache
+    environment:
+      COMPOSER_CACHE_DIR: /tmp/cache
+    commands:
+      - composer install --no-progress --no-interaction --no-dev --optimize-autoloader
+
+  - name: unit tests
+    image: php:7.4
+    commands:
+      - vendor/bin/phpunit -c phpunit.xml
+
+  - name: build image
+    image: docker
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    commands:
+      - docker build -t notecat:latest .
+
+  - name: deploy on testing
+    image: docker/compose
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    commands:
+      - docker-compose -f docker/docker-compose.testing.yml up --build --detach
+
+volumes:
+  - name: composer-cache
+    host:
+      path: /tmp/drone/composer-cache
+
+  - name: dockersock
+    host:
+      path: /var/run/docker.sock

.env

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+COMPOSE_PROJECT_NAME=notecat

.gitignore

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+/tmp/
+
+# Editors
+.vscode
+.idea
+
+# PHP
+/vendor/
+/coverage/

Dockerfile

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+FROM php:7.4-apache
+
+WORKDIR /var/www
+
+RUN sed -ri -e 's!/var/www/html!/var/www/public!g' /etc/apache2/sites-available/*.conf
+
+COPY vendor/ /var/www/vendor/
+COPY public/ /var/www/public/
+COPY src/ /var/www/src/

Makefile

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+### Variables
+DOCKER_COMPOSE_CMD := docker-compose -f docker/docker-compose.local.yml
+COMPOSER := composer
+PHPUNIT := vendor/bin/phpunit
+
+.PHONY: build up down logs install test phpunit open_coverage
+
+
+### Container management
+build:
+	${DOCKER_COMPOSE_CMD} build
+
+up:
+	${DOCKER_COMPOSE_CMD} up --build --detach
+
+down:
+	${DOCKER_COMPOSE_CMD} down
+
+logs:
+	${DOCKER_COMPOSE_CMD} logs -f || true
+
+
+### Dependency management
+install:
+	${COMPOSER} install
+
+
+### Test suites
+test: phpunit
+
+phpunit:
+	${PHPUNIT} -c phpunit.xml
+
+open_coverage:
+	${BROWSER} coverage/index.html

composer.json

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+{
+    "name": "binarydiv/notecat",
+    "description": "Note taking app. Like Notepad, but meow!",
+    "type": "project",
+    "authors": [
+        {
+            "name": "binaryDiv",
+            "email": "binarydiv@gmail.com"
+        }
+    ],
+    "require": {
+        "php": "^7.4"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9"
+    },
+    "autoload": {
+        "psr-4": {
+            "NoteCat\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Tests\\Unit\\": "tests/unit/"
+        }
+    }
+}

docker/docker-compose.local.yml

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+version: '3'
+
+services:
+  web:
+    build: ..
+    restart: always
+    ports:
+      - 8080:80
+    volumes:
+      - ../:/var/www/

docker/docker-compose.testing.yml

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+version: '3'
+
+services:
+  web:
+    build: ..
+    restart: always
+    networks:
+      - traefik
+    labels:
+      - traefik.enable=true
+      - traefik.http.routers.notecat.rule=Host(`notecat.dev.0xbd.space`)
+      - traefik.http.routers.notecat.tls=true
+      - traefik.http.routers.notecat.tls.certresolver=letsencrypt
+
+networks:
+  traefik:
+    external: true

phpunit.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.2/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         executionOrder="depends,defects"
+         forceCoversAnnotation="true"
+         beStrictAboutCoversAnnotation="true"
+         beStrictAboutOutputDuringTests="true"
+         beStrictAboutTodoAnnotatedTests="true"
+         verbose="true">
+
+    <testsuites>
+        <testsuite name="unit-tests">
+            <directory suffix="Test.php">tests/unit</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+
+    <logging>
+        <log type="coverage-html" target="coverage/" lowUpperBound="60" highLowerBound="100"/>
+        <log type="coverage-text" target="php://stdout" showUncoveredFiles="false"/>
+    </logging>
+</phpunit>

public/index.php

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+<?php
+declare(strict_types=1);
+
+require_once __DIR__ . '/../vendor/autoload.php';
+
+use NoteCat\HelloWorld;
+
+$hello = new HelloWorld();
+echo '<b>' . $hello->getHello() . "</b>\n";

src/HelloWorld.php

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+<?php
+declare(strict_types=1);
+
+namespace NoteCat;
+
+class HelloWorld
+{
+    public function getHello(): string
+    {
+        return 'Hello world! :3';
+    }
+}

tests/unit/HelloWorldTest.php

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+<?php
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use NoteCat\HelloWorld;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers NoteCat\HelloWorld
+ */
+final class HelloWorldTest extends TestCase
+{
+    public function testGetHello(): void
+    {
+        $hello = new HelloWorld();
+        $this->assertSame('Hello Drone! :3', $hello->getHello());
+    }
+}