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/psy/psysh/src/Command/DocCommand.php

@@ -0,0 +1,252 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2023 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Command;
+
+use Psy\Formatter\DocblockFormatter;
+use Psy\Formatter\SignatureFormatter;
+use Psy\Input\CodeArgument;
+use Psy\Output\ShellOutput;
+use Psy\Reflection\ReflectionConstant;
+use Psy\Reflection\ReflectionLanguageConstruct;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Read the documentation for an object, class, constant, method or property.
+ */
+class DocCommand extends ReflectingCommand
+{
+    const INHERIT_DOC_TAG = '{@inheritdoc}';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this
+            ->setName('doc')
+            ->setAliases(['rtfm', 'man'])
+            ->setDefinition([
+                new InputOption('all', 'a', InputOption::VALUE_NONE, 'Show documentation for superclasses as well as the current class.'),
+                new CodeArgument('target', CodeArgument::REQUIRED, 'Function, class, instance, constant, method or property to document.'),
+            ])
+            ->setDescription('Read the documentation for an object, class, constant, method or property.')
+            ->setHelp(
+                <<<HELP
+Read the documentation for an object, class, constant, method or property.
+
+It's awesome for well-documented code, not quite as awesome for poorly documented code.
+
+e.g.
+<return>>>> doc preg_replace</return>
+<return>>>> doc Psy\Shell</return>
+<return>>>> doc Psy\Shell::debug</return>
+<return>>>> \$s = new Psy\Shell</return>
+<return>>>> doc \$s->run</return>
+HELP
+            );
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return int 0 if everything went fine, or an exit code
+     */
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $value = $input->getArgument('target');
+        if (ReflectionLanguageConstruct::isLanguageConstruct($value)) {
+            $reflector = new ReflectionLanguageConstruct($value);
+            $doc = $this->getManualDocById($value);
+        } else {
+            list($target, $reflector) = $this->getTargetAndReflector($value);
+            $doc = $this->getManualDoc($reflector) ?: DocblockFormatter::format($reflector);
+        }
+
+        $db = $this->getApplication()->getManualDb();
+
+        if ($output instanceof ShellOutput) {
+            $output->startPaging();
+        }
+
+        // Maybe include the declaring class
+        if ($reflector instanceof \ReflectionMethod || $reflector instanceof \ReflectionProperty) {
+            $output->writeln(SignatureFormatter::format($reflector->getDeclaringClass()));
+        }
+
+        $output->writeln(SignatureFormatter::format($reflector));
+        $output->writeln('');
+
+        if (empty($doc) && !$db) {
+            $output->writeln('<warning>PHP manual not found</warning>');
+            $output->writeln('    To document core PHP functionality, download the PHP reference manual:');
+            $output->writeln('    https://github.com/bobthecow/psysh/wiki/PHP-manual');
+        } else {
+            $output->writeln($doc);
+        }
+
+        // Implicit --all if the original docblock has an {@inheritdoc} tag.
+        if ($input->getOption('all') || \stripos($doc, self::INHERIT_DOC_TAG) !== false) {
+            $parent = $reflector;
+            foreach ($this->getParentReflectors($reflector) as $parent) {
+                $output->writeln('');
+                $output->writeln('---');
+                $output->writeln('');
+
+                // Maybe include the declaring class
+                if ($parent instanceof \ReflectionMethod || $parent instanceof \ReflectionProperty) {
+                    $output->writeln(SignatureFormatter::format($parent->getDeclaringClass()));
+                }
+
+                $output->writeln(SignatureFormatter::format($parent));
+                $output->writeln('');
+
+                if ($doc = $this->getManualDoc($parent) ?: DocblockFormatter::format($parent)) {
+                    $output->writeln($doc);
+                }
+            }
+        }
+
+        if ($output instanceof ShellOutput) {
+            $output->stopPaging();
+        }
+
+        // Set some magic local variables
+        $this->setCommandScopeVariables($reflector);
+
+        return 0;
+    }
+
+    private function getManualDoc($reflector)
+    {
+        switch (\get_class($reflector)) {
+            case \ReflectionClass::class:
+            case \ReflectionObject::class:
+            case \ReflectionFunction::class:
+                $id = $reflector->name;
+                break;
+
+            case \ReflectionMethod::class:
+                $id = $reflector->class.'::'.$reflector->name;
+                break;
+
+            case \ReflectionProperty::class:
+                $id = $reflector->class.'::$'.$reflector->name;
+                break;
+
+            case \ReflectionClassConstant::class:
+                // @todo this is going to collide with ReflectionMethod ids
+                // someday... start running the query by id + type if the DB
+                // supports it.
+                $id = $reflector->class.'::'.$reflector->name;
+                break;
+
+            case ReflectionConstant::class:
+                $id = $reflector->name;
+                break;
+
+            default:
+                return false;
+        }
+
+        return $this->getManualDocById($id);
+    }
+
+    /**
+     * Get all all parent Reflectors for a given Reflector.
+     *
+     * For example, passing a Class, Object or TraitReflector will yield all
+     * traits and parent classes. Passing a Method or PropertyReflector will
+     * yield Reflectors for the same-named method or property on all traits and
+     * parent classes.
+     *
+     * @return \Generator a whole bunch of \Reflector instances
+     */
+    private function getParentReflectors($reflector): \Generator
+    {
+        $seenClasses = [];
+
+        switch (\get_class($reflector)) {
+            case \ReflectionClass::class:
+            case \ReflectionObject::class:
+                foreach ($reflector->getTraits() as $trait) {
+                    if (!\in_array($trait->getName(), $seenClasses)) {
+                        $seenClasses[] = $trait->getName();
+                        yield $trait;
+                    }
+                }
+
+                foreach ($reflector->getInterfaces() as $interface) {
+                    if (!\in_array($interface->getName(), $seenClasses)) {
+                        $seenClasses[] = $interface->getName();
+                        yield $interface;
+                    }
+                }
+
+                while ($reflector = $reflector->getParentClass()) {
+                    yield $reflector;
+
+                    foreach ($reflector->getTraits() as $trait) {
+                        if (!\in_array($trait->getName(), $seenClasses)) {
+                            $seenClasses[] = $trait->getName();
+                            yield $trait;
+                        }
+                    }
+
+                    foreach ($reflector->getInterfaces() as $interface) {
+                        if (!\in_array($interface->getName(), $seenClasses)) {
+                            $seenClasses[] = $interface->getName();
+                            yield $interface;
+                        }
+                    }
+                }
+
+                return;
+
+            case \ReflectionMethod::class:
+                foreach ($this->getParentReflectors($reflector->getDeclaringClass()) as $parent) {
+                    if ($parent->hasMethod($reflector->getName())) {
+                        $parentMethod = $parent->getMethod($reflector->getName());
+                        if (!\in_array($parentMethod->getDeclaringClass()->getName(), $seenClasses)) {
+                            $seenClasses[] = $parentMethod->getDeclaringClass()->getName();
+                            yield $parentMethod;
+                        }
+                    }
+                }
+
+                return;
+
+            case \ReflectionProperty::class:
+                foreach ($this->getParentReflectors($reflector->getDeclaringClass()) as $parent) {
+                    if ($parent->hasProperty($reflector->getName())) {
+                        $parentProperty = $parent->getProperty($reflector->getName());
+                        if (!\in_array($parentProperty->getDeclaringClass()->getName(), $seenClasses)) {
+                            $seenClasses[] = $parentProperty->getDeclaringClass()->getName();
+                            yield $parentProperty;
+                        }
+                    }
+                }
+                break;
+        }
+    }
+
+    private function getManualDocById($id)
+    {
+        if ($db = $this->getApplication()->getManualDb()) {
+            $result = $db->query(\sprintf('SELECT doc FROM php_manual WHERE id = %s', $db->quote($id)));
+            if ($result !== false) {
+                return $result->fetchColumn(0);
+            }
+        }
+    }
+}