1 files changed, 35 insertions, 0 deletions
diff --git a/includes/libs/composer/ComposerLock.php b/includes/libs/composer/ComposerLock.php
new file mode 100644
index 000000000000..d2b0e8e76f86
--- /dev/null
+++ b/includes/libs/composer/ComposerLock.php
@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * Reads a composer.lock file and provides accessors to get
+ * its hash and what is installed
+ *
+ * @since 1.25
+ */
+class ComposerLock {
+
+	/**
+	 * @param string $location
+	 */
+	public function __construct( $location ) {
+		$this->contents = json_decode( file_get_contents( $location ), true );
+	}
+
+	public function getHash() {
+		return $this->contents['hash'];
+	}
+
+	/**
+	 * Dependencies currently installed according to composer.lock
+	 *
+	 * @return array
+	 */
+	public function getInstalledDependencies() {
+		$deps = array();
+		foreach ( $this->contents['packages'] as $installed ) {
+			$deps[$installed['name']] = ComposerJson::normalizeVersion( $installed['version'] );
+		}
+
+		return $deps;
+	}
+}