Moved installer utilities to traits and classes.

.vortex/installer/src/Config.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DrevOps\Installer;
+
+/**
+ * Installer configuration.
+ *
+ * Installer config is a config of this installer script. For configs of the
+ * project being installed, @see get_answer().
+ *
+ * @package DrevOps\Installer
+ */
+class Config {
+
+  /**
+   * Installer configuration.
+   *
+   * @var array<string,mixed>
+   */
+  protected array $config = [];
+
+  /**
+   * Get a configuration value or default.
+   */
+  public function get(string $name, mixed $default = NULL): mixed {
+    return $this->config[$name] ?? $default;
+  }
+
+  /**
+   * Set a configuration value.
+   */
+  public function set(string $name, mixed $value): void {
+    if (!is_null($value)) {
+      $this->config[$name] = $value;
+    }
+  }
+
+}

.vortex/installer/src/Converter.php

@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DrevOps\Installer;
+
+/**
+ * Converter.
+ *
+ * Convert strings to different formats.
+ *
+ * @package DrevOps\Installer
+ */
+class Converter {
+
+  public static function toCamelCase(string $value, bool $capitalise_first = FALSE): string {
+    $value = str_replace(' ', '', ucwords((string) preg_replace('/[^a-zA-Z0-9]/', ' ', $value)));
+
+    return $capitalise_first ? $value : lcfirst($value);
+  }
+
+  public static function toHumanName(string $value): ?string {
+    $value = preg_replace('/[^a-zA-Z0-9]/', ' ', $value);
+    $value = trim((string) $value);
+
+    return preg_replace('/\s{2,}/', ' ', $value);
+  }
+
+  /**
+   * Convert string to machine name.
+   *
+   * @param string $value
+   *   Value to convert.
+   * @param array<int|string> $preserve_chars
+   *   Array of characters to preserve.
+   *
+   * @return string
+   *   Converted value.
+   */
+  public static function toMachineName(string $value, array $preserve_chars = []): string {
+    $preserve = '';
+    foreach ($preserve_chars as $char) {
+      $preserve .= preg_quote(strval($char), '/');
+    }
+    $pattern = '/[^a-zA-Z0-9' . $preserve . ']/';
+
+    $value = preg_replace($pattern, '_', $value);
+
+    return strtolower($value);
+  }
+
+  public static function toAbbreviation(string $value, int $length = 2, string $word_delim = '_'): string {
+    $value = trim($value);
+    $value = str_replace(' ', '_', $value);
+    $parts = empty($word_delim) ? [$value] : explode($word_delim, $value);
+
+    if (count($parts) == 1) {
+      return strlen($parts[0]) > $length ? substr($parts[0], 0, $length) : $value;
+    }
+
+    $value = implode('', array_map(static function (string $word): string {
+      return substr($word, 0, 1);
+    }, $parts));
+
+    return substr($value, 0, $length);
+  }
+
+  public static function snakeToPascal(string $string): string {
+    return str_replace(' ', '', ucwords(str_replace('_', ' ', $string)));
+  }
+
+}