refactor: Revert "refactor: use gitRef instead of gitHead"

This reverts commit 29d00aa4.

lib/datasource/packagist.js

@@ -39,7 +39,7 @@ async function getDependency(purl) {
         dep.homepage = dep.homepage || v.homepage;
         const sanitize = isVersion;
         dep.versions[sanitize(version)] = {
-          gitRef: version,
+          gitHead: version,
           time: v.time,
         };
       });

lib/workers/pr/changelog/manager-npm.js

@@ -19,7 +19,7 @@ async function getPackage({ versionScheme, depName, depType }) {
   const versions = releases.map(release => ({
     version: release,
     date: dep.versions[release].time,
-    gitRef: dep.versions[release].gitRef,
+    gitHead: dep.versions[release].gitHead,
   }));
   return {
     repositoryUrl: dep.repositoryUrl,

lib/workers/pr/changelog/source-github.js

@@ -23,7 +23,7 @@ async function getTags(versionScheme, repository) {
     tags.forEach(tag => {
       const version = isVersion(tag.name);
       if (version) {
-        versions[version] = { gitRef: tag.name };
+        versions[version] = { gitHead: tag.name };
       }
     });
     return versions;
@@ -39,8 +39,8 @@ async function getTags(versionScheme, repository) {
 }
 
 async function getRepositoryHead(repository, version) {
-  if (version.gitRef) {
-    return version.gitRef;
+  if (version.gitHead) {
+    return version.gitHead;
   }
   if (!version.date) {
     return null;

test/datasource/__snapshots__/packagist.spec.js.snap

@@ -7,35 +7,35 @@ Object {
   "repositoryUrl": "https://github.com/cristianvuolo/uploader",
   "versions": Object {
     "1.0.0": Object {
-      "gitRef": "1.0.0",
+      "gitHead": "1.0.0",
       "time": "2017-02-07T20:01:41+00:00",
     },
     "1.0.1": Object {
-      "gitRef": "1.0.1",
+      "gitHead": "1.0.1",
       "time": "2017-02-07T20:10:08+00:00",
     },
     "1.0.3": Object {
-      "gitRef": "1.0.3",
+      "gitHead": "1.0.3",
       "time": "2017-07-11T16:52:54+00:00",
     },
     "1.0.4": Object {
-      "gitRef": "1.0.4",
+      "gitHead": "1.0.4",
       "time": "2017-08-02T13:08:31+00:00",
     },
     "1.0.5": Object {
-      "gitRef": "1.0.5",
+      "gitHead": "1.0.5",
       "time": "2017-08-02T13:23:33+00:00",
     },
     "1.0.6": Object {
-      "gitRef": "1.0.6",
+      "gitHead": "1.0.6",
       "time": "2018-01-25T18:57:17+00:00",
     },
     "1.0.7": Object {
-      "gitRef": "1.0.7",
+      "gitHead": "1.0.7",
       "time": "2018-02-19T12:22:34+00:00",
     },
     "1.0.8": Object {
-      "gitRef": "1.0.8",
+      "gitHead": "1.0.8",
       "time": "2018-03-14T17:40:06+00:00",
     },
   },