add gitSignature to commit prototype

implausible · implausible · commit 9a89c82f3ac2 · 2018-03-16T12:55:36.000-07:00
diff --git a/lib/commit.js b/lib/commit.js
@@ -4,6 +4,7 @@ var Commit = NodeGit.Commit;
 var LookupWrapper = NodeGit.Utils.lookupWrapper;
 
 var _amend = Commit.prototype.amend;
+
 /**
  * Retrieves the commit pointed to by the oid
  * @async
@@ -162,6 +163,23 @@ Commit.prototype.getParents = function(limit, callback) {
   }, callback);
 };
 
+/**
+ * @typedef extractedSignature
+ * @type {Object}
+ * @property {String} signature the signature of the commit
+ * @property {String} signedData the extracted signed data
+ */
+
+/**
+ * Retrieve the signature and signed data for a commit.
+ * @param  {String} field Optional field to get from the signature,
+ *                        defaults to gpgsig
+ * @return {extractedSignature}
+ */
+Commit.prototype.getSignature = function(field) {
+  return Commit.extractSignature(this.repo, this.id(), field);
+};
+
 /**
  * Get the tree associated with this commit.
  *
