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/phar-io/manifest/src/ManifestSerializer.php

@@ -0,0 +1,168 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <arne@blankerts.de>, Sebastian Heuer <sebastian@phpeople.de>, Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\AnyVersionConstraint;
+use PharIo\Version\Version;
+use PharIo\Version\VersionConstraint;
+use XMLWriter;
+
+/** @psalm-suppress MissingConstructor */
+class ManifestSerializer {
+    /** @var XMLWriter */
+    private $xmlWriter;
+
+    public function serializeToFile(Manifest $manifest, string $filename): void {
+        \file_put_contents(
+            $filename,
+            $this->serializeToString($manifest)
+        );
+    }
+
+    public function serializeToString(Manifest $manifest): string {
+        $this->startDocument();
+
+        $this->addContains($manifest->getName(), $manifest->getVersion(), $manifest->getType());
+        $this->addCopyright($manifest->getCopyrightInformation());
+        $this->addRequirements($manifest->getRequirements());
+        $this->addBundles($manifest->getBundledComponents());
+
+        return $this->finishDocument();
+    }
+
+    private function startDocument(): void {
+        $xmlWriter = new XMLWriter();
+        $xmlWriter->openMemory();
+        $xmlWriter->setIndent(true);
+        $xmlWriter->setIndentString(\str_repeat(' ', 4));
+        $xmlWriter->startDocument('1.0', 'UTF-8');
+        $xmlWriter->startElement('phar');
+        $xmlWriter->writeAttribute('xmlns', 'https://phar.io/xml/manifest/1.0');
+
+        $this->xmlWriter = $xmlWriter;
+    }
+
+    private function finishDocument(): string {
+        $this->xmlWriter->endElement();
+        $this->xmlWriter->endDocument();
+
+        return $this->xmlWriter->outputMemory();
+    }
+
+    private function addContains(ApplicationName $name, Version $version, Type $type): void {
+        $this->xmlWriter->startElement('contains');
+        $this->xmlWriter->writeAttribute('name', $name->asString());
+        $this->xmlWriter->writeAttribute('version', $version->getVersionString());
+
+        switch (true) {
+            case $type->isApplication(): {
+                $this->xmlWriter->writeAttribute('type', 'application');
+
+                break;
+            }
+
+            case $type->isLibrary(): {
+                $this->xmlWriter->writeAttribute('type', 'library');
+
+                break;
+            }
+
+            case $type->isExtension(): {
+                $this->xmlWriter->writeAttribute('type', 'extension');
+                /* @var $type Extension */
+                $this->addExtension(
+                    $type->getApplicationName(),
+                    $type->getVersionConstraint()
+                );
+
+                break;
+            }
+
+            default: {
+                $this->xmlWriter->writeAttribute('type', 'custom');
+            }
+        }
+
+        $this->xmlWriter->endElement();
+    }
+
+    private function addCopyright(CopyrightInformation $copyrightInformation): void {
+        $this->xmlWriter->startElement('copyright');
+
+        foreach ($copyrightInformation->getAuthors() as $author) {
+            $this->xmlWriter->startElement('author');
+            $this->xmlWriter->writeAttribute('name', $author->getName());
+            $this->xmlWriter->writeAttribute('email', $author->getEmail()->asString());
+            $this->xmlWriter->endElement();
+        }
+
+        $license = $copyrightInformation->getLicense();
+
+        $this->xmlWriter->startElement('license');
+        $this->xmlWriter->writeAttribute('type', $license->getName());
+        $this->xmlWriter->writeAttribute('url', $license->getUrl()->asString());
+        $this->xmlWriter->endElement();
+
+        $this->xmlWriter->endElement();
+    }
+
+    private function addRequirements(RequirementCollection $requirementCollection): void {
+        $phpRequirement = new AnyVersionConstraint();
+        $extensions     = [];
+
+        foreach ($requirementCollection as $requirement) {
+            if ($requirement instanceof PhpVersionRequirement) {
+                $phpRequirement = $requirement->getVersionConstraint();
+
+                continue;
+            }
+
+            if ($requirement instanceof PhpExtensionRequirement) {
+                $extensions[] = $requirement->asString();
+            }
+        }
+
+        $this->xmlWriter->startElement('requires');
+        $this->xmlWriter->startElement('php');
+        $this->xmlWriter->writeAttribute('version', $phpRequirement->asString());
+
+        foreach ($extensions as $extension) {
+            $this->xmlWriter->startElement('ext');
+            $this->xmlWriter->writeAttribute('name', $extension);
+            $this->xmlWriter->endElement();
+        }
+
+        $this->xmlWriter->endElement();
+        $this->xmlWriter->endElement();
+    }
+
+    private function addBundles(BundledComponentCollection $bundledComponentCollection): void {
+        if (\count($bundledComponentCollection) === 0) {
+            return;
+        }
+        $this->xmlWriter->startElement('bundles');
+
+        foreach ($bundledComponentCollection as $bundledComponent) {
+            $this->xmlWriter->startElement('component');
+            $this->xmlWriter->writeAttribute('name', $bundledComponent->getName());
+            $this->xmlWriter->writeAttribute('version', $bundledComponent->getVersion()->getVersionString());
+            $this->xmlWriter->endElement();
+        }
+
+        $this->xmlWriter->endElement();
+    }
+
+    private function addExtension(ApplicationName $applicationName, VersionConstraint $versionConstraint): void {
+        $this->xmlWriter->startElement('extension');
+        $this->xmlWriter->writeAttribute('for', $applicationName->asString());
+        $this->xmlWriter->writeAttribute('compatible', $versionConstraint->asString());
+        $this->xmlWriter->endElement();
+    }
+}