Replace property file.eol with a util function

Moved to ide_status_list.vue, and eol is computed based on file's
contents.

app/assets/javascripts/ide/components/ide_status_list.vue

 <script>
 import { mapGetters } from 'vuex';
 import TerminalSyncStatusSafe from './terminal_sync/terminal_sync_status_safe.vue';
+import { getFileEOL } from '../utils';
 
 export default {
   components: {
@@ -8,6 +9,9 @@ export default {
   },
   computed: {
     ...mapGetters(['activeFile']),
+    activeFileEOL() {
+      return getFileEOL(this.activeFile.content);
+    },
   },
 };
 </script>
@@ -16,7 +20,7 @@ export default {
   <div class="ide-status-list d-flex">
     <template v-if="activeFile">
       <div class="ide-status-file">{{ activeFile.name }}</div>
-      <div class="ide-status-file">{{ activeFile.eol }}</div>
+      <div class="ide-status-file">{{ activeFileEOL }}</div>
       <div v-if="!activeFile.binary" class="ide-status-file">
         {{ activeFile.editorRow }}:{{ activeFile.editorColumn }}
       </div>

app/assets/javascripts/ide/components/new_dropdown/upload.vue

@@ -35,7 +35,6 @@ export default {
           name: `${this.path ? `${this.path}/` : ''}${name}`,
           type: 'blob',
           content,
-          base64: !isText,
           binary: !isText,
           rawPath: !isText ? target.result : '',
         });

app/assets/javascripts/ide/components/repo_editor.vue

@@ -83,10 +83,6 @@ export default {
         active: this.isPreviewViewMode,
       };
     },
-    fileType() {
-      const info = viewerInformationForPath(this.file.path);
-      return (info && info.id) || '';
-    },
     showEditor() {
       return !this.shouldHideEditor && this.isEditorViewMode;
     },
@@ -99,6 +95,12 @@ export default {
     currentBranchCommit() {
       return this.currentBranch?.commit.id;
     },
+    previewMode() {
+      return viewerInformationForPath(this.file.path);
+    },
+    fileType() {
+      return this.previewMode?.id || '';
+    },
   },
   watch: {
     file(newVal, oldVal) {
@@ -181,7 +183,6 @@ export default {
       'setFileLanguage',
       'setEditorPosition',
       'setFileViewMode',
-      'setFileEOL',
       'updateViewer',
       'removePendingTab',
       'triggerFilesChange',
@@ -260,7 +261,6 @@ export default {
         const monacoModel = model.getModel();
         const content = monacoModel.getValue();
         this.changeFileContent({ path: file.path, content });
-        this.setFileEOL({ eol: this.model.eol });
       });
 
       // Handle Cursor Position
@@ -280,11 +280,6 @@ export default {
       this.setFileLanguage({
         fileLanguage: this.model.language,
       });
-
-      // Get File eol
-      this.setFileEOL({
-        eol: this.model.eol,
-      });
     },
     refreshEditorDimensions() {
       if (this.showEditor) {
@@ -331,16 +326,15 @@ export default {
             role="button"
             @click.prevent="setFileViewMode({ file, viewMode: $options.FILE_VIEW_MODE_EDITOR })"
           >
-            <template v-if="viewer === $options.viewerTypes.edit">{{ __('Edit') }}</template>
-            <template v-else>{{ __('Review') }}</template>
+            {{ __('Edit') }}
           </a>
         </li>
-        <li v-if="file.previewMode" :class="previewTabCSS">
+        <li v-if="previewMode" :class="previewTabCSS">
           <a
             href="javascript:void(0);"
             role="button"
             @click.prevent="setFileViewMode({ file, viewMode: $options.FILE_VIEW_MODE_PREVIEW })"
-            >{{ file.previewMode.previewTitle }}</a
+            >{{ previewMode.previewTitle }}</a
           >
         </li>
       </ul>

app/assets/javascripts/ide/lib/common/model.js

@@ -53,10 +53,6 @@ export default class Model {
     return this.model.getModeId();
   }
 
-  get eol() {
-    return this.model.getEOL() === '\n' ? 'LF' : 'CRLF';
-  }
-
   get path() {
     return this.file.key;
   }

app/assets/javascripts/ide/lib/files.js

@@ -19,7 +19,6 @@ export const decorateFiles = ({
   branchId,
   tempFile = false,
   content = '',
-  base64 = false,
   binary = false,
   rawPath = '',
 }) => {
@@ -88,10 +87,8 @@ export const decorateFiles = ({
         tempFile,
         changed: tempFile,
         content,
-        base64,
         binary: (previewMode && previewMode.binary) || binary,
         rawPath,
-        previewMode,
         parentPath,
       });
 

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

@@ -29,7 +29,6 @@ export const createTempEntry = (
     name,
     type,
     content = '',
-    base64 = false,
     binary = false,
     rawPath = '',
     openFile = true,
@@ -60,7 +59,6 @@ export const createTempEntry = (
     type,
     tempFile: true,
     content,
-    base64,
     binary,
     rawPath,
   });
@@ -92,7 +90,6 @@ export const addTempImage = ({ dispatch, getters }, { name, rawPath = '' }) =>
     name: getters.getAvailableFileName(name),
     type: 'blob',
     content: rawPath.split('base64,')[1],
-    base64: true,
     binary: true,
     rawPath,
     openFile: false,

app/assets/javascripts/ide/stores/actions/file.js

@@ -169,12 +169,6 @@ export const setFileLanguage = ({ getters, commit }, { fileLanguage }) => {
   }
 };
 
-export const setFileEOL = ({ getters, commit }, { eol }) => {
-  if (getters.activeFile) {
-    commit(types.SET_FILE_EOL, { file: getters.activeFile, eol });
-  }
-};
-
 export const setEditorPosition = ({ getters, commit }, { editorRow, editorColumn }) => {
   if (getters.activeFile) {
     commit(types.SET_FILE_POSITION, {

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

@@ -40,7 +40,6 @@ export const UPDATE_FILE_CONTENT = 'UPDATE_FILE_CONTENT';
 export const SET_FILE_LANGUAGE = 'SET_FILE_LANGUAGE';
 export const SET_FILE_POSITION = 'SET_FILE_POSITION';
 export const SET_FILE_VIEWMODE = 'SET_FILE_VIEWMODE';
-export const SET_FILE_EOL = 'SET_FILE_EOL';
 export const DISCARD_FILE_CHANGES = 'DISCARD_FILE_CHANGES';
 export const ADD_FILE_TO_CHANGED = 'ADD_FILE_TO_CHANGED';
 export const REMOVE_FILE_FROM_CHANGED = 'REMOVE_FILE_FROM_CHANGED';

app/assets/javascripts/ide/stores/mutations/file.js

@@ -99,11 +99,6 @@ export default {
       fileLanguage,
     });
   },
-  [types.SET_FILE_EOL](state, { file, eol }) {
-    Object.assign(state.entries[file.path], {
-      eol,
-    });
-  },
   [types.SET_FILE_POSITION](state, { file, editorRow, editorColumn }) {
     Object.assign(state.entries[file.path], {
       editorRow,

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

 import { commitActionTypes, FILE_VIEW_MODE_EDITOR } from '../constants';
-import { relativePathToAbsolute, isAbsolute, isRootRelative } from '~/lib/utils/url_utility';
+import {
+  relativePathToAbsolute,
+  isAbsolute,
+  isRootRelative,
+  isBase64DataUrl,
+} from '~/lib/utils/url_utility';
 
 export const dataStructure = () => ({
   id: '',
@@ -31,13 +36,10 @@ export const dataStructure = () => ({
   binary: false,
   raw: '',
   content: '',
-  base64: false,
   editorRow: 1,
   editorColumn: 1,
   fileLanguage: '',
-  eol: '',
   viewMode: FILE_VIEW_MODE_EDITOR,
-  previewMode: null,
   size: 0,
   parentPath: null,
   lastOpenedAt: 0,
@@ -60,10 +62,8 @@ export const decorateData = entity => {
     active = false,
     opened = false,
     changed = false,
-    base64 = false,
     binary = false,
     rawPath = '',
-    previewMode,
     file_lock,
     parentPath = '',
   } = entity;
@@ -82,10 +82,8 @@ export const decorateData = entity => {
     active,
     changed,
     content,
-    base64,
     binary,
     rawPath,
-    previewMode,
     file_lock,
     parentPath,
   });
@@ -136,7 +134,7 @@ export const createCommitPayload = ({
     file_path: f.path,
     previous_path: f.prevPath || undefined,
     content: f.prevPath && !f.changed ? null : f.content || undefined,
-    encoding: f.base64 ? 'base64' : 'text',
+    encoding: isBase64DataUrl(f.rawPath) ? 'base64' : 'text',
     last_commit_id: newBranch || f.deleted || f.prevPath ? undefined : f.lastCommitSha,
   })),
   start_sha: newBranch ? rootGetters.lastCommit.id : undefined,

app/assets/javascripts/ide/utils.js

@@ -119,3 +119,7 @@ export function readFileAsDataURL(file) {
     reader.readAsDataURL(file);
   });
 }
+
+export function getFileEOL(content = '') {
+  return content.includes('\r\n') ? 'CRLF' : 'LF';
+}

app/assets/javascripts/lib/utils/url_utility.js

@@ -243,6 +243,15 @@ export function isRootRelative(url) {
   return /^\//.test(url);
 }
 
+/**
+ * Returns true if url is a base64 data URL
+ *
+ * @param {String} url
+ */
+export function isBase64DataUrl(url) {
+  return /^data:[.\w+-]+\/[.\w+-]+;base64,/.test(url);
+}
+
 /**
  * Returns true if url is an absolute or root-relative URL
  *

spec/frontend/ide/components/ide_status_list_spec.js

@@ -5,10 +5,10 @@ import TerminalSyncStatusSafe from '~/ide/components/terminal_sync/terminal_sync
 
 const TEST_FILE = {
   name: 'lorem.md',
-  eol: 'LF',
   editorRow: 3,
   editorColumn: 23,
   fileLanguage: 'markdown',
+  content: 'abc\nndef',
 };
 
 const localVue = createLocalVue();
@@ -56,7 +56,8 @@ describe('ide/components/ide_status_list', () => {
     });
 
     it('shows file eol', () => {
-      expect(wrapper.text()).toContain(TEST_FILE.name);
+      expect(wrapper.text()).not.toContain('CRLF');
+      expect(wrapper.text()).toContain('LF');
     });
 
     it('shows file editor position', () => {

spec/frontend/ide/components/new_dropdown/upload_spec.js

@@ -85,7 +85,6 @@ describe('new dropdown upload', () => {
             name: textFile.name,
             type: 'blob',
             content: 'plain text',
-            base64: false,
             binary: false,
             rawPath: '',
           });
@@ -103,7 +102,6 @@ describe('new dropdown upload', () => {
         name: binaryFile.name,
         type: 'blob',
         content: binaryTarget.result.split('base64,')[1],
-        base64: true,
         binary: true,
         rawPath: binaryTarget.result,
       });

spec/frontend/ide/components/repo_editor_spec.js

@@ -94,47 +94,24 @@ describe('RepoEditor', () => {
   });
 
   describe('when file is markdown', () => {
-    beforeEach(done => {
-      vm.file.previewMode = {
-        id: 'markdown',
-        previewTitle: 'Preview Markdown',
-      };
-
-      vm.$nextTick(done);
-    });
-
-    it('renders an Edit and a Preview Tab', done => {
-      Vue.nextTick(() => {
-        const tabs = vm.$el.querySelectorAll('.ide-mode-tabs .nav-links li');
-
-        expect(tabs.length).toBe(2);
-        expect(tabs[0].textContent.trim()).toBe('Edit');
-        expect(tabs[1].textContent.trim()).toBe('Preview Markdown');
-
-        done();
-      });
-    });
-  });
-
-  describe('when file is markdown and viewer mode is review', () => {
     let mock;
 
-    beforeEach(done => {
+    beforeEach(() => {
       mock = new MockAdapter(axios);
-
-      vm.file.projectId = 'namespace/project';
-      vm.file.previewMode = {
-        id: 'markdown',
-        previewTitle: 'Preview Markdown',
-      };
-      vm.file.content = 'testing 123';
-      vm.$store.state.viewer = 'diff';
-
       mock.onPost(/(.*)\/preview_markdown/).reply(200, {
         body: '<p>testing 123</p>',
       });
 
-      vm.$nextTick(done);
+      Vue.set(vm, 'file', {
+        ...vm.file,
+        projectId: 'namespace/project',
+        path: 'sample.md',
+        content: 'testing 123',
+      });
+
+      vm.$store.state.entries[vm.file.path] = vm.file;
+
+      return vm.$nextTick();
     });
 
     afterEach(() => {
@@ -146,7 +123,7 @@ describe('RepoEditor', () => {
         const tabs = vm.$el.querySelectorAll('.ide-mode-tabs .nav-links li');
 
         expect(tabs.length).toBe(2);
-        expect(tabs[0].textContent.trim()).toBe('Review');
+        expect(tabs[0].textContent.trim()).toBe('Edit');
         expect(tabs[1].textContent.trim()).toBe('Preview Markdown');
 
         done();
@@ -155,8 +132,6 @@ describe('RepoEditor', () => {
 
     it('renders markdown for tempFile', done => {
       vm.file.tempFile = true;
-      vm.file.path = `${vm.file.path}.md`;
-      vm.$store.state.entries[vm.file.path] = vm.file;
 
       vm.$nextTick()
         .then(() => {
@@ -171,6 +146,20 @@ describe('RepoEditor', () => {
         .then(done)
         .catch(done.fail);
     });
+
+    describe('when not in edit mode', () => {
+      beforeEach(async () => {
+        await vm.$nextTick();
+
+        vm.$store.state.currentActivityView = leftSidebarViews.review.name;
+
+        return vm.$nextTick();
+      });
+
+      it('shows no tabs', () => {
+        expect(vm.$el.querySelectorAll('.ide-mode-tabs .nav-links a')).toHaveLength(0);
+      });
+    });
   });
 
   describe('when open file is binary and not raw', () => {
@@ -560,7 +549,6 @@ describe('RepoEditor', () => {
           path: 'foo/foo.png',
           type: 'blob',
           content: 'Zm9v',
-          base64: true,
           binary: true,
           rawPath: 'data:image/png;base64,Zm9v',
         });

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

@@ -13,8 +13,8 @@ import { commitActionTypes, PERMISSION_CREATE_MR } from '~/ide/constants';
 import testAction from '../../../../helpers/vuex_action_helper';
 
 jest.mock('~/lib/utils/url_utility', () => ({
+  ...jest.requireActual('~/lib/utils/url_utility'),
   visitUrl: jest.fn(),
-  joinPaths: jest.requireActual('~/lib/utils/url_utility').joinPaths,
 }));
 
 const TEST_COMMIT_SHA = '123456789';

spec/frontend/ide/stores/utils_spec.js

@@ -46,7 +46,7 @@ describe('Multi-file store utils', () => {
             path: 'added',
             tempFile: true,
             content: 'new file content',
-            base64: true,
+            rawPath: 'data:image/png;base64,abc',
             lastCommitSha: '123456789',
           },
           { ...file('deletedFile'), path: 'deletedFile', deleted: true },
@@ -117,7 +117,7 @@ describe('Multi-file store utils', () => {
             path: 'added',
             tempFile: true,
             content: 'new file content',
-            base64: true,
+            rawPath: 'data:image/png;base64,abc',
             lastCommitSha: '123456789',
           },
         ],

spec/frontend/lib/utils/url_utility_spec.js

@@ -371,6 +371,23 @@ describe('URL utility', () => {
     });
   });
 
+  describe('isBase64DataUrl', () => {
+    it.each`
+      url                                                      | valid
+      ${undefined}                                             | ${false}
+      ${'http://gitlab.com'}                                   | ${false}
+      ${'data:image/png;base64,abcdef'}                        | ${true}
+      ${'data:application/smil+xml;base64,abcdef'}             | ${true}
+      ${'data:application/vnd.syncml+xml;base64,abcdef'}       | ${true}
+      ${'data:application/vnd.3m.post-it-notes;base64,abcdef'} | ${true}
+      ${'notaurl'}                                             | ${false}
+      ${'../relative_url'}                                     | ${false}
+      ${'<a></a>'}                                             | ${false}
+    `('returns $valid for $url', ({ url, valid }) => {
+      expect(urlUtils.isBase64DataUrl(url)).toBe(valid);
+    });
+  });
+
   describe('relativePathToAbsolute', () => {
     it.each`
       path                       | base                                  | result