| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | */ |
| 7 | |
| 8 | import type { |
| 9 | ApplyUncommittedChangesPreviewsFuncType, |
| 10 | UncommittedChangesPreviewContext, |
| 11 | } from '../previews'; |
| 12 | import type { |
| 13 | CommandArg, |
| 14 | ExactRevset, |
| 15 | OptimisticRevset, |
| 16 | RepoRelativePath, |
| 17 | SucceedableRevset, |
| 18 | UncommittedChanges, |
| 19 | } from '../types'; |
| 20 | |
| 21 | import {Operation} from './Operation'; |
| 22 | |
| 23 | export class RevertOperation extends Operation { |
| 24 | static opName = 'Revert'; |
| 25 | |
| 26 | constructor( |
| 27 | private files: Array<RepoRelativePath>, |
| 28 | private revset?: SucceedableRevset | ExactRevset | OptimisticRevset, |
| 29 | ) { |
| 30 | super('RevertOperation'); |
| 31 | } |
| 32 | |
| 33 | getArgs() { |
| 34 | const args: Array<CommandArg> = ['revert']; |
| 35 | if (this.revset != null) { |
| 36 | args.push('--rev', this.revset); |
| 37 | } |
| 38 | if (this.files.length > 0) { |
| 39 | // Tag file arguments specially so the remote repo can convert them to the proper cwd-relative format. |
| 40 | args.push({ |
| 41 | type: 'repo-relative-file-list' as const, |
| 42 | paths: this.files, |
| 43 | }); |
| 44 | } |
| 45 | return args; |
| 46 | } |
| 47 | |
| 48 | makeOptimisticUncommittedChangesApplier?( |
| 49 | context: UncommittedChangesPreviewContext, |
| 50 | ): ApplyUncommittedChangesPreviewsFuncType | undefined { |
| 51 | if (this.revset == null) { |
| 52 | const filesToHide = new Set(this.files); |
| 53 | if (context.uncommittedChanges.every(change => !filesToHide.has(change.path))) { |
| 54 | return undefined; |
| 55 | } |
| 56 | |
| 57 | const func: ApplyUncommittedChangesPreviewsFuncType = (changes: UncommittedChanges) => { |
| 58 | return changes.filter(change => !filesToHide.has(change.path)); |
| 59 | }; |
| 60 | return func; |
| 61 | } else { |
| 62 | // If reverting back to a specific commit, the file will probably become 'M', not disappear. |
| 63 | // Note: this is just a guess, in reality the file could do any number of things. |
| 64 | |
| 65 | const filesToMarkChanged = new Set(this.files); |
| 66 | if (context.uncommittedChanges.find(change => filesToMarkChanged.has(change.path)) != null) { |
| 67 | return undefined; |
| 68 | } |
| 69 | const func: ApplyUncommittedChangesPreviewsFuncType = (changes: UncommittedChanges) => { |
| 70 | const existingChanges = new Set(changes.map(change => change.path)); |
| 71 | const revertedChangesToInsert = this.files.filter(file => !existingChanges.has(file)); |
| 72 | return [ |
| 73 | ...changes.map(change => |
| 74 | filesToMarkChanged.has(change.path) ? {...change, status: 'M' as const} : change, |
| 75 | ), |
| 76 | ...revertedChangesToInsert.map(path => ({path, status: 'M' as const})), |
| 77 | ]; |
| 78 | }; |
| 79 | return func; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | |