* add phpunit as a dev dependency

 * add some basic tests for UrlHelper::rewrite_relative()
 * fix UrlHelper::rewrite_relative() to work better on non-absolute
   relative URL paths

7 files changed, 241 insertions, 0 deletions

diff --git a/vendor/sebastian/version/.gitattributes b/vendor/sebastian/version/.gitattributes
new file mode 100644
index 000000000..54b895305
--- /dev/null
+++ b/vendor/sebastian/version/.gitattributes
@@ -0,0 +1,4 @@
+/.github        export-ignore
+/.php_cs.dist   export-ignore
+
+*.php diff=php
diff --git a/vendor/sebastian/version/.gitignore b/vendor/sebastian/version/.gitignore
new file mode 100644
index 000000000..ff5ec9a0e
--- /dev/null
+++ b/vendor/sebastian/version/.gitignore
@@ -0,0 +1,2 @@
+/.php_cs.cache
+/.idea
diff --git a/vendor/sebastian/version/ChangeLog.md b/vendor/sebastian/version/ChangeLog.md
new file mode 100644
index 000000000..10fd9a1a5
--- /dev/null
+++ b/vendor/sebastian/version/ChangeLog.md
@@ -0,0 +1,25 @@
+# ChangeLog
+
+All notable changes are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
+
+## [3.0.2] - 2020-09-28
+
+### Changed
+
+* Changed PHP version constraint in `composer.json` from `^7.3 || ^8.0` to `>=7.3`
+
+## [3.0.1] - 2020-06-26
+
+### Added
+
+* This component is now supported on PHP 8
+
+## [3.0.0] - 2020-01-21
+
+### Removed
+
+* This component is no longer supported on PHP 7.1 and PHP 7.2
+
+[3.0.2]: https://github.com/sebastianbergmann/version/compare/3.0.1...3.0.2
+[3.0.1]: https://github.com/sebastianbergmann/version/compare/3.0.0...3.0.1
+[3.0.0]: https://github.com/sebastianbergmann/version/compare/2.0.1...3.0.0
diff --git a/vendor/sebastian/version/LICENSE b/vendor/sebastian/version/LICENSE
new file mode 100644
index 000000000..aa6bca299
--- /dev/null
+++ b/vendor/sebastian/version/LICENSE
@@ -0,0 +1,33 @@
+Version
+
+Copyright (c) 2013-2020, Sebastian Bergmann <[email protected]>.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+
+ * Neither the name of Sebastian Bergmann nor the names of his
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/sebastian/version/README.md b/vendor/sebastian/version/README.md
new file mode 100644
index 000000000..2864c8126
--- /dev/null
+++ b/vendor/sebastian/version/README.md
@@ -0,0 +1,43 @@
+# Version
+
+**Version** is a library that helps with managing the version number of Git-hosted PHP projects.
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+    composer require sebastian/version
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+    composer require --dev sebastian/version
+
+## Usage
+
+The constructor of the `SebastianBergmann\Version` class expects two parameters:
+
+* `$release` is the version number of the latest release (`X.Y.Z`, for instance) or the name of the release series (`X.Y`) when no release has been made from that branch / for that release series yet.
+* `$path` is the path to the directory (or a subdirectory thereof) where the sourcecode of the project can be found. Simply passing `__DIR__` here usually suffices.
+
+Apart from the constructor, the `SebastianBergmann\Version` class has a single public method: `getVersion()`.
+
+Here is a contrived example that shows the basic usage:
+
+    <?php
+    $version = new SebastianBergmann\Version(
+      '3.7.10', '/usr/local/src/phpunit'
+    );
+
+    var_dump($version->getVersion());
+    ?>
+
+    string(18) "3.7.10-17-g00f3408"
+
+When a new release is prepared, the string that is passed to the constructor as the first argument needs to be updated.
+
+### How SebastianBergmann\Version::getVersion() works
+
+* If `$path` is not (part of) a Git repository and `$release` is in `X.Y.Z` format then `$release` is returned as-is.
+* If `$path` is not (part of) a Git repository and `$release` is in `X.Y` format then `$release` is returned suffixed with `-dev`.
+* If `$path` is (part of) a Git repository and `$release` is in `X.Y.Z` format then the output of `git describe --tags` is returned as-is.
+* If `$path` is (part of) a Git repository and `$release` is in `X.Y` format then a string is returned that begins with `X.Y` and ends with information from `git describe --tags`.
diff --git a/vendor/sebastian/version/composer.json b/vendor/sebastian/version/composer.json
new file mode 100644
index 000000000..e76dbf412
--- /dev/null
+++ b/vendor/sebastian/version/composer.json
@@ -0,0 +1,37 @@
+{
+    "name": "sebastian/version",
+    "description": "Library that helps with managing the version number of Git-hosted PHP projects",
+    "homepage": "https://github.com/sebastianbergmann/version",
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Sebastian Bergmann",
+            "email": "[email protected]",
+            "role": "lead"
+        }
+    ],
+    "support": {
+        "issues": "https://github.com/sebastianbergmann/version/issues"
+    },
+    "config": {
+        "platform": {
+            "php": "7.3.0"
+        },
+        "optimize-autoloader": true,
+        "sort-packages": true
+    },
+    "prefer-stable": true,
+    "require": {
+        "php": ">=7.3"
+    },
+    "autoload": {
+        "classmap": [
+            "src/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "3.0-dev"
+        }
+    }
+}
diff --git a/vendor/sebastian/version/src/Version.php b/vendor/sebastian/version/src/Version.php
new file mode 100644
index 000000000..53ae7894e
--- /dev/null
+++ b/vendor/sebastian/version/src/Version.php
@@ -0,0 +1,97 @@
+<?php
+/*
+ * This file is part of sebastian/version.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann;
+
+final class Version
+{
+    /**
+     * @var string
+     */
+    private $path;
+
+    /**
+     * @var string
+     */
+    private $release;
+
+    /**
+     * @var string
+     */
+    private $version;
+
+    public function __construct(string $release, string $path)
+    {
+        $this->release = $release;
+        $this->path    = $path;
+    }
+
+    public function getVersion(): string
+    {
+        if ($this->version === null) {
+            if (\substr_count($this->release, '.') + 1 === 3) {
+                $this->version = $this->release;
+            } else {
+                $this->version = $this->release . '-dev';
+            }
+
+            $git = $this->getGitInformation($this->path);
+
+            if ($git) {
+                if (\substr_count($this->release, '.') + 1 === 3) {
+                    $this->version = $git;
+                } else {
+                    $git = \explode('-', $git);
+
+                    $this->version = $this->release . '-' . \end($git);
+                }
+            }
+        }
+
+        return $this->version;
+    }
+
+    /**
+     * @return bool|string
+     */
+    private function getGitInformation(string $path)
+    {
+        if (!\is_dir($path . DIRECTORY_SEPARATOR . '.git')) {
+            return false;
+        }
+
+        $process = \proc_open(
+            'git describe --tags',
+            [
+                1 => ['pipe', 'w'],
+                2 => ['pipe', 'w'],
+            ],
+            $pipes,
+            $path
+        );
+
+        if (!\is_resource($process)) {
+            return false;
+        }
+
+        $result = \trim(\stream_get_contents($pipes[1]));
+
+        \fclose($pipes[1]);
+        \fclose($pipes[2]);
+
+        $returnCode = \proc_close($process);
+
+        if ($returnCode !== 0) {
+            return false;
+        }
+
+        return $result;
+    }
+}