Label cards in editorial workflow

src/backends/github/API.js

@@ -159,7 +159,7 @@ export default class API {
   }
 
   readUnpublishedBranchFile(contentKey) {
-    let metaData;
+    let metaData, fileData;
     const unpublishedPromise = this.retrieveMetadata(contentKey)
     .then((data) => {
       metaData = data;
@@ -168,13 +168,28 @@ export default class API {
       }
       return Promise.reject(null);
     })
-    .then(fileData => ({ metaData, fileData }))
+    .then((file) => {
+      fileData = file;
+      return this.isUnpublishedEntryModification(metaData.objects.entry.path);
+    })
+    .then(isModification => ({ metaData, fileData, isModification }))
     .catch(() => {
       throw new EditorialWorkflowError('content is not under editorial workflow', true);
     });
     return unpublishedPromise;
   }
 
+  isUnpublishedEntryModification(path, branch) {
+    return this.readFile(path, null, branch)
+    .then(data => true)
+    .catch((err) => {
+      if (err.message && err.message === "Not Found") {
+        return false;
+      }
+      throw err;
+    });
+  }
+
   listUnpublishedBranches() {
     console.log("%c Checking for Unpublished entries", "line-height: 30px;text-align: center;font-weight: bold"); // eslint-disable-line
     return this.request(`${ this.repoURL }/git/refs/heads/cms`)

src/backends/github/implementation.js

@@ -99,6 +99,7 @@ export default class GitHub {
                 file: { path },
                 data: data.fileData,
                 metaData: data.metaData,
+                isModification: data.isModification,
               });
               sem.leave();
             }
@@ -127,6 +128,7 @@ export default class GitHub {
         file: { path: data.metaData.objects.entry.path },
         data: data.fileData,
         metaData: data.metaData,
+        isModification: data.isModification,
       };
     });
   }