Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/vendor/vlucas/phpdotenv/src/Dotenv.php

@@ -0,0 +1,267 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Dotenv;
+
+use Dotenv\Exception\InvalidPathException;
+use Dotenv\Loader\Loader;
+use Dotenv\Loader\LoaderInterface;
+use Dotenv\Parser\Parser;
+use Dotenv\Parser\ParserInterface;
+use Dotenv\Repository\Adapter\ArrayAdapter;
+use Dotenv\Repository\Adapter\PutenvAdapter;
+use Dotenv\Repository\RepositoryBuilder;
+use Dotenv\Repository\RepositoryInterface;
+use Dotenv\Store\StoreBuilder;
+use Dotenv\Store\StoreInterface;
+use Dotenv\Store\StringStore;
+
+class Dotenv
+{
+    /**
+     * The store instance.
+     *
+     * @var \Dotenv\Store\StoreInterface
+     */
+    private $store;
+
+    /**
+     * The parser instance.
+     *
+     * @var \Dotenv\Parser\ParserInterface
+     */
+    private $parser;
+
+    /**
+     * The loader instance.
+     *
+     * @var \Dotenv\Loader\LoaderInterface
+     */
+    private $loader;
+
+    /**
+     * The repository instance.
+     *
+     * @var \Dotenv\Repository\RepositoryInterface
+     */
+    private $repository;
+
+    /**
+     * Create a new dotenv instance.
+     *
+     * @param \Dotenv\Store\StoreInterface           $store
+     * @param \Dotenv\Parser\ParserInterface         $parser
+     * @param \Dotenv\Loader\LoaderInterface         $loader
+     * @param \Dotenv\Repository\RepositoryInterface $repository
+     *
+     * @return void
+     */
+    public function __construct(
+        StoreInterface $store,
+        ParserInterface $parser,
+        LoaderInterface $loader,
+        RepositoryInterface $repository
+    ) {
+        $this->store = $store;
+        $this->parser = $parser;
+        $this->loader = $loader;
+        $this->repository = $repository;
+    }
+
+    /**
+     * Create a new dotenv instance.
+     *
+     * @param \Dotenv\Repository\RepositoryInterface $repository
+     * @param string|string[]                        $paths
+     * @param string|string[]|null                   $names
+     * @param bool                                   $shortCircuit
+     * @param string|null                            $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function create(RepositoryInterface $repository, $paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $builder = $names === null ? StoreBuilder::createWithDefaultName() : StoreBuilder::createWithNoNames();
+
+        foreach ((array) $paths as $path) {
+            $builder = $builder->addPath($path);
+        }
+
+        foreach ((array) $names as $name) {
+            $builder = $builder->addName($name);
+        }
+
+        if ($shortCircuit) {
+            $builder = $builder->shortCircuit();
+        }
+
+        return new self($builder->fileEncoding($fileEncoding)->make(), new Parser(), new Loader(), $repository);
+    }
+
+    /**
+     * Create a new mutable dotenv instance with default repository.
+     *
+     * @param string|string[]      $paths
+     * @param string|string[]|null $names
+     * @param bool                 $shortCircuit
+     * @param string|null          $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function createMutable($paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $repository = RepositoryBuilder::createWithDefaultAdapters()->make();
+
+        return self::create($repository, $paths, $names, $shortCircuit, $fileEncoding);
+    }
+
+    /**
+     * Create a new mutable dotenv instance with default repository with the putenv adapter.
+     *
+     * @param string|string[]      $paths
+     * @param string|string[]|null $names
+     * @param bool                 $shortCircuit
+     * @param string|null          $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function createUnsafeMutable($paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $repository = RepositoryBuilder::createWithDefaultAdapters()
+            ->addAdapter(PutenvAdapter::class)
+            ->make();
+
+        return self::create($repository, $paths, $names, $shortCircuit, $fileEncoding);
+    }
+
+    /**
+     * Create a new immutable dotenv instance with default repository.
+     *
+     * @param string|string[]      $paths
+     * @param string|string[]|null $names
+     * @param bool                 $shortCircuit
+     * @param string|null          $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function createImmutable($paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $repository = RepositoryBuilder::createWithDefaultAdapters()->immutable()->make();
+
+        return self::create($repository, $paths, $names, $shortCircuit, $fileEncoding);
+    }
+
+    /**
+     * Create a new immutable dotenv instance with default repository with the putenv adapter.
+     *
+     * @param string|string[]      $paths
+     * @param string|string[]|null $names
+     * @param bool                 $shortCircuit
+     * @param string|null          $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function createUnsafeImmutable($paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $repository = RepositoryBuilder::createWithDefaultAdapters()
+            ->addAdapter(PutenvAdapter::class)
+            ->immutable()
+            ->make();
+
+        return self::create($repository, $paths, $names, $shortCircuit, $fileEncoding);
+    }
+
+    /**
+     * Create a new dotenv instance with an array backed repository.
+     *
+     * @param string|string[]      $paths
+     * @param string|string[]|null $names
+     * @param bool                 $shortCircuit
+     * @param string|null          $fileEncoding
+     *
+     * @return \Dotenv\Dotenv
+     */
+    public static function createArrayBacked($paths, $names = null, bool $shortCircuit = true, string $fileEncoding = null)
+    {
+        $repository = RepositoryBuilder::createWithNoAdapters()->addAdapter(ArrayAdapter::class)->make();
+
+        return self::create($repository, $paths, $names, $shortCircuit, $fileEncoding);
+    }
+
+    /**
+     * Parse the given content and resolve nested variables.
+     *
+     * This method behaves just like load(), only without mutating your actual
+     * environment. We do this by using an array backed repository.
+     *
+     * @param string $content
+     *
+     * @throws \Dotenv\Exception\InvalidFileException
+     *
+     * @return array<string,string|null>
+     */
+    public static function parse(string $content)
+    {
+        $repository = RepositoryBuilder::createWithNoAdapters()->addAdapter(ArrayAdapter::class)->make();
+
+        $phpdotenv = new self(new StringStore($content), new Parser(), new Loader(), $repository);
+
+        return $phpdotenv->load();
+    }
+
+    /**
+     * Read and load environment file(s).
+     *
+     * @throws \Dotenv\Exception\InvalidPathException|\Dotenv\Exception\InvalidEncodingException|\Dotenv\Exception\InvalidFileException
+     *
+     * @return array<string,string|null>
+     */
+    public function load()
+    {
+        $entries = $this->parser->parse($this->store->read());
+
+        return $this->loader->load($this->repository, $entries);
+    }
+
+    /**
+     * Read and load environment file(s), silently failing if no files can be read.
+     *
+     * @throws \Dotenv\Exception\InvalidEncodingException|\Dotenv\Exception\InvalidFileException
+     *
+     * @return array<string,string|null>
+     */
+    public function safeLoad()
+    {
+        try {
+            return $this->load();
+        } catch (InvalidPathException $e) {
+            // suppressing exception
+            return [];
+        }
+    }
+
+    /**
+     * Required ensures that the specified variables exist, and returns a new validator object.
+     *
+     * @param string|string[] $variables
+     *
+     * @return \Dotenv\Validator
+     */
+    public function required($variables)
+    {
+        return (new Validator($this->repository, (array) $variables))->required();
+    }
+
+    /**
+     * Returns a new validator object that won't check if the specified variables exist.
+     *
+     * @param string|string[] $variables
+     *
+     * @return \Dotenv\Validator
+     */
+    public function ifPresent($variables)
+    {
+        return new Validator($this->repository, (array) $variables);
+    }
+}