FE remove create branch call in IDE commit

Previously `start_sha` was intercepted on the frontend to create the
correct branch in a separate API call. Now that the commits API supports
the `start_sha` parameter directly this workaround is not needed
anymore.

app/assets/javascripts/ide/services/index.js

@@ -56,13 +56,7 @@ export default {
     return Api.branchSingle(projectId, currentBranchId);
   },
   commit(projectId, payload) {
-    // Currently the `commit` endpoint does not support `start_sha` so we
-    // have to make the request in the FE. This is not ideal and will be
-    // resolved soon. https://gitlab.com/gitlab-org/gitlab-ce/issues/59023
-    const { branch, start_sha: ref } = payload;
-    const branchPromise = ref ? Api.createBranch(projectId, { ref, branch }) : Promise.resolve();
-
-    return branchPromise.then(() => Api.commitMultiple(projectId, payload));
+    return Api.commitMultiple(projectId, payload);
   },
   getFiles(projectUrl, branchId) {
     const url = `${projectUrl}/files/${branchId}`;

app/assets/javascripts/ide/stores/utils.js

@@ -155,7 +155,7 @@ export const createCommitPayload = ({
     last_commit_id:
       newBranch || f.deleted || f.prevPath || f.replaces ? undefined : f.lastCommitSha,
   })),
-  start_sha: newBranch ? rootGetters.lastCommit.short_id : undefined,
+  start_sha: newBranch ? rootGetters.lastCommit.id : undefined,
 });
 export const createNewMergeRequestUrl = (projectUrl, source, target) =>

spec/frontend/ide/services/index_spec.js

@@ -16,40 +16,16 @@ describe('IDE services', () => {
         branch: TEST_BRANCH,
         commit_message: 'Hello world',
         actions: [],
-        start_sha: undefined,
+        start_sha: TEST_COMMIT_SHA,
       };
-      Api.createBranch.mockReturnValue(Promise.resolve());
       Api.commitMultiple.mockReturnValue(Promise.resolve());
     });
-    describe.each`
-      startSha           | shouldCreateBranch
-      ${undefined}       | ${false}
-      ${TEST_COMMIT_SHA} | ${true}
-    `('when start_sha is $startSha', ({ startSha, shouldCreateBranch }) => {
-      beforeEach(() => {
-        payload.start_sha = startSha;
-        return services.commit(TEST_PROJECT_ID, payload);
-      });
-
-      if (shouldCreateBranch) {
-        it('should create branch', () => {
-          expect(Api.createBranch).toHaveBeenCalledWith(TEST_PROJECT_ID, {
-            ref: TEST_COMMIT_SHA,
-            branch: TEST_BRANCH,
-          });
-        });
-      } else {
-        it('should not create branch', () => {
-          expect(Api.createBranch).not.toHaveBeenCalled();
-        });
-      }
-
-      it('should commit', () => {
-        expect(Api.commitMultiple).toHaveBeenCalledWith(TEST_PROJECT_ID, payload);
-      });
+    it('should commit', () => {
+      services.commit(TEST_PROJECT_ID, payload);
+      expect(Api.commitMultiple).toHaveBeenCalledWith(TEST_PROJECT_ID, payload);
     });
   });
 });

spec/javascripts/ide/stores/modules/commit/actions_spec.js

@@ -245,7 +245,7 @@ describe('IDE commit module actions', () => {
           master: {
             workingReference: '1',
             commit: {
-              short_id: TEST_COMMIT_SHA,
+              id: TEST_COMMIT_SHA,
             },
           },
         },