Remove unused code from scm-utils (#55036)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/55036

Changelog: [Internal]

Reviewed By: cortinico

Differential Revision: D90107033

fbshipit-source-id: 701b02801a59ee0c910de772dfa75d924e78860b

scripts/releases/utils/__tests__/scm-utils-test.js

@@ -8,11 +8,10 @@
  * @format
  */
 
-const {isTaggedLatest, revertFiles, saveFiles} = require('../scm-utils');
+const {isTaggedLatest} = require('../scm-utils');
 
 let execResult = null;
-const cpMock = jest.fn();
-const mkdirSyncMock = jest.fn();
+
 jest
   .mock('shelljs', () => ({
     exec: () => {
@@ -26,11 +25,9 @@ jest
     exit: exitCode => {
       process.exit(exitCode);
     },
-    cp: cpMock,
   }))
   .mock('fs', () => ({
     existsSync: jest.fn().mockImplementation(_ => true),
-    mkdirSync: mkdirSyncMock,
   }))
   .mock('path', () => ({
     dirname: jest
@@ -58,41 +55,4 @@ describe('scm-utils', () => {
       expect(isTaggedLatest('6c19dc3266b8')).toBe(false);
     });
   });
-
-  describe('saveFiles', () => {
-    it('it should save files in the temp folder', () => {
-      const tmpFolder = '/tmp';
-      saveFiles(['package.json', 'android/package.json'], tmpFolder);
-      expect(mkdirSyncMock).toHaveBeenCalledWith(`${tmpFolder}/android`, {
-        recursive: true,
-      });
-      expect(cpMock).toHaveBeenNthCalledWith(
-        1,
-        'package.json',
-        '/tmp/package.json',
-      );
-      expect(cpMock).toHaveBeenNthCalledWith(
-        2,
-        'android/package.json',
-        `${tmpFolder}/android/package.json`,
-      );
-    });
-  });
-
-  describe('revertFiles', () => {
-    it('it should revert files from the temp folder', () => {
-      const tmpFolder = '/tmp';
-      revertFiles(['package.json', 'android/package.json'], tmpFolder);
-      expect(cpMock).toHaveBeenNthCalledWith(
-        1,
-        `${tmpFolder}/package.json`,
-        'package.json',
-      );
-      expect(cpMock).toHaveBeenNthCalledWith(
-        2,
-        `${tmpFolder}/android/package.json`,
-        'android/package.json',
-      );
-    });
-  });
 });

scripts/releases/utils/scm-utils.js

@@ -10,28 +10,8 @@
 
 'use strict';
 
-const fs = require('fs');
-const path = require('path');
-const {cp, echo, exec, exit} = require('shelljs');
-
-/*::
-type Commit = string;
-*/
-
-function isGitRepo() /*: boolean */ {
-  try {
-    return (
-      exec('git rev-parse --is-inside-work-tree', {
-        silent: true,
-      }).stdout.trim() === 'true'
-    );
-  } catch (error) {
-    echo(
-      `It wasn't possible to check if we are in a git repository. Details: ${error}`,
-    );
-  }
-  return false;
-}
+const isGitRepo = require('../../shared/isGitRepo');
+const {echo, exec, exit} = require('shelljs');
 
 function exitIfNotOnGit /*::<T>*/(
   command /*: () => T */,
@@ -47,7 +27,7 @@ function exitIfNotOnGit /*::<T>*/(
   }
 }
 
-function isTaggedLatest(commitSha /*: Commit */) /*: boolean */ {
+function isTaggedLatest(commitSha /*: string */) /*: boolean */ {
   return (
     exec(`git rev-list -1 latest | grep ${commitSha}`, {
       silent: true,
@@ -61,7 +41,7 @@ function getBranchName() /*: string */ {
   }).stdout.trim();
 }
 
-function getCurrentCommit() /*: Commit */ {
+function getCurrentCommit() /*: string */ {
   return isGitRepo()
     ? exec('git rev-parse HEAD', {
         silent: true,
@@ -69,51 +49,9 @@ function getCurrentCommit() /*: Commit */ {
     : 'TEMP';
 }
 
-function saveFiles(filePaths /*: Array<string> */, tmpFolder /*: string */) {
-  for (const filePath of filePaths) {
-    const dirName = path.dirname(filePath);
-    if (dirName !== '.') {
-      const destFolder = `${tmpFolder}/${dirName}`;
-      fs.mkdirSync(destFolder, {recursive: true});
-    }
-    cp(filePath, `${tmpFolder}/${filePath}`);
-  }
-}
-
-function revertFiles(filePaths /*: Array<string> */, tmpFolder /*: string */) {
-  for (const filePath of filePaths) {
-    const absoluteTmpPath = `${tmpFolder}/${filePath}`;
-    if (fs.existsSync(absoluteTmpPath)) {
-      cp(absoluteTmpPath, filePath);
-    } else {
-      echo(
-        `It was not possible to revert ${filePath} since ${absoluteTmpPath} does not exist.`,
-      );
-      exit(1);
-    }
-  }
-}
-
-// git restore for local path
-function restore(repoPath /*: string */) {
-  const result = exec('git restore .', {
-    cwd: repoPath,
-  });
-
-  if (result.code !== 0) {
-    throw new Error(result.stderr);
-  }
-
-  return;
-}
-
 module.exports = {
   exitIfNotOnGit,
   getCurrentCommit,
   getBranchName,
-  isGitRepo,
   isTaggedLatest,
-  revertFiles,
-  saveFiles,
-  restore,
 };

scripts/shared/isGitRepo.js

@@ -12,10 +12,6 @@
 
 const childProcess = require('child_process');
 
-/*::
-type Commit = string;
-*/
-
 function isGitRepo() /*: boolean */ {
   try {
     const result = childProcess.execSync(