1 files changed, 66 insertions, 0 deletions
diff --git a/includes/composer/ComposerVersionNormalizer.php b/includes/composer/ComposerVersionNormalizer.php
new file mode 100644
index 00000000..a0d31cf2
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+++ b/includes/composer/ComposerVersionNormalizer.php
@@ -0,0 +1,66 @@
+<?php
+
+/**
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroendedauw@gmail.com >
+ */
+class ComposerVersionNormalizer {
+
+	/**
+	 * Ensures there is a dash in between the version and the stability suffix.
+	 *
+	 * Examples:
+	 * - 1.23RC => 1.23-RC
+	 * - 1.23alpha => 1.23-alpha
+	 * - 1.23alpha3 => 1.23-alpha3
+	 * - 1.23-beta => 1.23-beta
+	 *
+	 * @param string $version
+	 *
+	 * @return string
+	 * @throws InvalidArgumentException
+	 */
+	public function normalizeSuffix( $version ) {
+		if ( !is_string( $version ) ) {
+			throw new InvalidArgumentException( '$version must be a string' );
+		}
+
+		return preg_replace( '/^(\d[\d\.]*)([a-zA-Z]+)(\d*)$/', '$1-$2$3', $version, 1 );
+	}
+
+	/**
+	 * Ensures the version has four levels.
+	 * Version suffixes are supported, as long as they start with a dash.
+	 *
+	 * Examples:
+	 * - 1.19 => 1.19.0.0
+	 * - 1.19.2.3 => 1.19.2.3
+	 * - 1.19-alpha => 1.19.0.0-alpha
+	 * - 1337 => 1337.0.0.0
+	 *
+	 * @param string $version
+	 *
+	 * @return string
+	 * @throws InvalidArgumentException
+	 */
+	public function normalizeLevelCount( $version ) {
+		if ( !is_string( $version ) ) {
+			throw new InvalidArgumentException( '$version must be a string' );
+		}
+
+		$dashPosition = strpos( $version, '-' );
+
+		if ( $dashPosition !== false ) {
+			$suffix = substr( $version, $dashPosition );
+			$version = substr( $version, 0, $dashPosition );
+		}
+
+		$version = implode( '.', array_pad( explode( '.', $version ), 4, '0' ) );
+
+		if ( $dashPosition !== false ) {
+			$version .= $suffix;
+		}
+
+		return $version;
+	}
+}