fix: deletes singular CL when from CLs when specified

package.json

@@ -46,6 +46,7 @@
     "@salesforce/core": "^3.36.1",
     "@salesforce/kit": "^1.9.2",
     "@salesforce/source-deploy-retrieve": "^8.4.0",
+    "fast-xml-parser": "^4.2.2",
     "graceful-fs": "^4.2.11",
     "isomorphic-git": "1.23.0",
     "ts-retry-promise": "^0.7.0"
@@ -56,6 +57,7 @@
     "@salesforce/dev-scripts": "^4.3.0",
     "@salesforce/prettier-config": "^0.0.2",
     "@salesforce/ts-sinon": "^1.4.6",
+    "@types/graceful-fs": "^4.1.6",
     "@types/shelljs": "^0.8.11",
     "@typescript-eslint/eslint-plugin": "^5.59.0",
     "@typescript-eslint/parser": "^5.59.0",
@@ -158,4 +160,4 @@
       "output": []
     }
   }
-}
+}

src/index.ts

@@ -16,4 +16,4 @@ export {
   ConflictResponse,
   SourceConflictError,
 } from './shared/types';
-export { getKeyFromObject } from './shared/functions';
+export { getKeyFromObject, deleteCustomLabels } from './shared/functions';

src/shared/functions.ts

@@ -6,8 +6,11 @@
  */
 
 import { sep, normalize, isAbsolute, relative } from 'path';
+import * as fs from 'fs';
 import { isString } from '@salesforce/ts-types';
 import { SourceComponent } from '@salesforce/source-deploy-retrieve';
+import { XMLBuilder, XMLParser } from 'fast-xml-parser';
+import { ensureArray } from '@salesforce/kit';
 import { RemoteChangeElement, ChangeResult } from './types';
 
 export const getMetadataKey = (metadataType: string, metadataName: string): string =>
@@ -45,3 +48,59 @@ export const chunkArray = <T>(arr: T[], size: number): T[][] =>
 
 export const ensureRelative = (filePath: string, projectPath: string): string =>
   isAbsolute(filePath) ? relative(projectPath, filePath) : filePath;
+
+export type ParsedCustomLabels = {
+  CustomLabels: { labels: Array<{ fullName: string }> };
+};
+
+/**
+ * A method to help delete custom labels from a file, or the entire file if there are no more labels
+ *
+ * @param filename - a path to a custom labels file
+ * @param customLabels - an array of SourceComponents representing the custom labels to delete
+ * @returns -json equivalent of the custom labels file's contents OR undefined if the file was deleted/not written
+ */
+export const deleteCustomLabels = async (
+  filename: string,
+  customLabels: SourceComponent[]
+): Promise<ParsedCustomLabels | undefined> => {
+  const customLabelsToDelete = customLabels
+    .filter((label) => label.type.id === 'customlabel')
+    .map((change) => change.fullName);
+
+  // if we don't have custom labels, we don't need to do anything
+  if (!customLabelsToDelete.length) {
+    return undefined;
+  }
+  // for custom labels, we need to remove the individual label from the xml file
+  // so we'll parse the xml
+  const parser = new XMLParser({
+    ignoreDeclaration: false,
+    ignoreAttributes: false,
+    attributeNamePrefix: '@_',
+  });
+  const cls = parser.parse(fs.readFileSync(filename, 'utf8')) as ParsedCustomLabels;
+
+  // delete the labels from the json based on their fullName's
+  cls.CustomLabels.labels = ensureArray(cls.CustomLabels.labels).filter(
+    (label) => !customLabelsToDelete.includes(label.fullName)
+  );
+
+  if (cls.CustomLabels.labels.length === 0) {
+    // we've deleted everything, so let's delete the file
+    await fs.promises.unlink(filename);
+    return undefined;
+  } else {
+    // we need to write the file json back to xml back to the fs
+    const builder = new XMLBuilder({
+      attributeNamePrefix: '@_',
+      ignoreAttributes: false,
+      format: true,
+      indentBy: '    ',
+    });
+    // and then write that json back to xml and back to the fs
+    const xml = builder.build(cls) as string;
+    await fs.promises.writeFile(filename, xml);
+    return cls;
+  }
+};

src/sourceTracking.ts

@@ -27,7 +27,6 @@ import {
 } from '@salesforce/source-deploy-retrieve';
 // this is not exported by SDR (see the comments in SDR regarding its limitations)
 import { filePathsFromMetadataComponent } from '@salesforce/source-deploy-retrieve/lib/src/utils/filePathGenerator';
-
 import { RemoteSourceTrackingService, remoteChangeElementToChangeResult } from './shared/remoteSourceTrackingService';
 import { ShadowRepo } from './shared/localShadowRepo';
 import { throwIfConflicts, findConflictsInComponentSet, getDedupedConflictsFromChanges } from './shared/conflicts';

test/unit/deleteCustomLabels.test.ts

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2020, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import * as fs from 'fs';
+import * as sinon from 'sinon';
+import { SourceComponent } from '@salesforce/source-deploy-retrieve';
+import { expect } from 'chai';
+import { deleteCustomLabels } from '../../src/';
+
+describe('deleteCustomLabels', () => {
+  const sandbox = sinon.createSandbox();
+  let fsReadStub: sinon.SinonStub;
+  let fsWriteStub: sinon.SinonStub;
+  let fsUnlinkStub: sinon.SinonStub;
+
+  beforeEach(() => {
+    fsWriteStub = sandbox.stub(fs.promises, 'writeFile');
+    fsUnlinkStub = sandbox.stub(fs.promises, 'unlink');
+    fsReadStub = sandbox
+      .stub(fs, 'readFileSync')
+      .returns(
+        '<?xml version="1.0" encoding="UTF-8"?>\n' +
+          '<CustomLabels xmlns="http://soap.sforce.com/2006/04/metadata">\n' +
+          '    <labels>\n' +
+          '        <fullName>DeleteMe</fullName>\n' +
+          '        <language>en_US</language>\n' +
+          '        <protected>true</protected>\n' +
+          '        <shortDescription>DeleteMe</shortDescription>\n' +
+          '        <value>Test</value>\n' +
+          '    </labels>\n' +
+          '    <labels>\n' +
+          '        <fullName>KeepMe1</fullName>\n' +
+          '        <language>en_US</language>\n' +
+          '        <protected>true</protected>\n' +
+          '        <shortDescription>KeepMe1</shortDescription>\n' +
+          '        <value>Test</value>\n' +
+          '    </labels>\n' +
+          '    <labels>\n' +
+          '        <fullName>KeepMe2</fullName>\n' +
+          '        <language>en_US</language>\n' +
+          '        <protected>true</protected>\n' +
+          '        <shortDescription>KeepMe2</shortDescription>\n' +
+          '        <value>Test</value>\n' +
+          '    </labels>\n' +
+          '</CustomLabels>\n'
+      );
+  });
+
+  afterEach(() => {
+    sandbox.restore();
+  });
+
+  describe('deleteCustomLabels', () => {
+    it('will delete a singular custom label from a file', async () => {
+      const labels = [
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'DeleteMe',
+        } as SourceComponent,
+      ];
+
+      const result = await deleteCustomLabels('labels/CustomLabels.labels-meta.xml', labels);
+      const resultLabels = result?.CustomLabels.labels.map((label) => label.fullName);
+      expect(resultLabels).to.deep.equal(['KeepMe1', 'KeepMe2']);
+      expect(fsReadStub.callCount).to.equal(1);
+    });
+    it('will delete a multiple custom labels from a file', async () => {
+      const labels = [
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'KeepMe1',
+        },
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'KeepMe2',
+        },
+      ] as SourceComponent[];
+
+      const result = await deleteCustomLabels('labels/CustomLabels.labels-meta.xml', labels);
+      const resultLabels = result?.CustomLabels.labels.map((label) => label.fullName);
+      expect(resultLabels).to.deep.equal(['DeleteMe']);
+      expect(fsReadStub.callCount).to.equal(1);
+    });
+
+    it('will delete the file when everything is deleted', async () => {
+      const labels = [
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'KeepMe1',
+        },
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'KeepMe2',
+        },
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'DeleteMe',
+        },
+      ] as SourceComponent[];
+
+      const result = await deleteCustomLabels('labels/CustomLabels.labels-meta.xml', labels);
+      expect(result).to.equal(undefined);
+      expect(fsUnlinkStub.callCount).to.equal(1);
+      expect(fsReadStub.callCount).to.equal(1);
+    });
+
+    it('will delete the file when only a single label is present and deleted', async () => {
+      fsReadStub.returns(
+        '<?xml version="1.0" encoding="UTF-8"?>\n' +
+          '<CustomLabels xmlns="http://soap.sforce.com/2006/04/metadata">\n' +
+          '    <labels>\n' +
+          '        <fullName>DeleteMe</fullName>\n' +
+          '        <language>en_US</language>\n' +
+          '        <protected>true</protected>\n' +
+          '        <shortDescription>DeleteMe</shortDescription>\n' +
+          '        <value>Test</value>\n' +
+          '    </labels>\n' +
+          '</CustomLabels>\n'
+      );
+      const labels = [
+        {
+          type: { id: 'customlabel', name: 'CustomLabel' },
+          fullName: 'DeleteMe',
+        },
+      ] as SourceComponent[];
+
+      const result = await deleteCustomLabels('labels/CustomLabels.labels-meta.xml', labels);
+      expect(result).to.equal(undefined);
+      expect(fsUnlinkStub.callCount).to.equal(1);
+      expect(fsReadStub.callCount).to.equal(1);
+    });
+
+    it('no custom labels, quick exit and do nothing', async () => {
+      const labels = [
+        {
+          type: { id: 'apexclass', name: 'ApexClass' },
+          fullName: 'DeleteMe',
+        },
+      ] as SourceComponent[];
+
+      const result = await deleteCustomLabels('labels/CustomLabels.labels-meta.xml', labels);
+      expect(result).to.equal(undefined);
+      expect(fsUnlinkStub.callCount).to.equal(0);
+      expect(fsWriteStub.callCount).to.equal(0);
+      expect(fsReadStub.callCount).to.equal(0);
+    });
+  });
+});

yarn.lock

@@ -890,30 +890,7 @@
     strip-ansi "6.0.1"
     ts-retry-promise "^0.7.0"
 
-"@salesforce/core@^3.34.6":
-  version "3.34.7"
-  resolved "https://registry.yarnpkg.com/@salesforce/core/-/core-3.34.7.tgz#445efe5c76fbab53e6c891563aa9b0dc5dd24179"
-  integrity sha512-C4zyXzLAV5ITMChC8dCP+6Kk3t5vloyP2eXpqBOw96OzF5OaCiN5/TayNN8YJl64pvFFny7FgAQPKk7omFXNSA==
-  dependencies:
-    "@salesforce/bunyan" "^2.0.0"
-    "@salesforce/kit" "^1.9.2"
-    "@salesforce/schemas" "^1.5.1"
-    "@salesforce/ts-types" "^1.7.2"
-    "@types/graceful-fs" "^4.1.6"
-    "@types/semver" "^7.3.13"
-    ajv "^8.12.0"
-    archiver "^5.3.0"
-    change-case "^4.1.2"
-    debug "^3.2.7"
-    faye "^1.4.0"
-    form-data "^4.0.0"
-    graceful-fs "^4.2.11"
-    js2xmlparser "^4.0.1"
-    jsforce "^2.0.0-beta.21"
-    jsonwebtoken "9.0.0"
-    ts-retry-promise "^0.7.0"
-
-"@salesforce/core@^3.34.8", "@salesforce/core@^3.36.0", "@salesforce/core@^3.36.1":
+"@salesforce/core@^3.34.6", "@salesforce/core@^3.34.8", "@salesforce/core@^3.36.0", "@salesforce/core@^3.36.1":
   version "3.36.1"
   resolved "https://registry.yarnpkg.com/@salesforce/core/-/core-3.36.1.tgz#053a5e1079b9749b62e461e6ac3e630b5689694a"
   integrity sha512-kcjyr9bj35nnL8Bqv8U39xeho3CrZYXJiS/X5X1eEHVNZLd9zckrmKrh1V7z8ElCFpsJrewT989SJsdvi9kE8w==