| 50 | } |
| 51 | |
| 52 | async function planFile(filePath: string, edits: Array<{ old_string: string; new_string: string; replace_all?: boolean }>): Promise<EditPlan> { |
| 53 | let content: string; |
| 54 | try { |
| 55 | content = await fs.readFile(filePath, 'utf-8'); |
| 56 | } catch (e: any) { |
| 57 | throw new Error(`Cannot read ${filePath}: ${e?.message ?? e}`); |
| 58 | } |
| 59 | const original = content; |
| 60 | for (let i = 0; i < edits.length; i++) { |
| 61 | const edit = edits[i]!; |
| 62 | if (edit.replace_all) { |
| 63 | // Use split/join to count + replace |
| 64 | const parts = content.split(edit.old_string); |
| 65 | if (parts.length === 1) { |
| 66 | throw new Error(`Edit ${i + 1} in ${filePath}: old_string not found`); |
| 67 | } |
| 68 | content = parts.join(edit.new_string); |
| 69 | } else { |
| 70 | const idx = content.indexOf(edit.old_string); |
| 71 | if (idx === -1) { |
| 72 | throw new Error(`Edit ${i + 1} in ${filePath}: old_string not found`); |
| 73 | } |
| 74 | const secondIdx = content.indexOf(edit.old_string, idx + 1); |
| 75 | if (secondIdx !== -1) { |
| 76 | throw new Error(`Edit ${i + 1} in ${filePath}: old_string appears multiple times. Set replace_all=true or extend the context to make it unique.`); |
| 77 | } |
| 78 | content = content.slice(0, idx) + edit.new_string + content.slice(idx + edit.old_string.length); |
| 79 | } |
| 80 | } |
| 81 | return { |
| 82 | path: filePath, |
| 83 | originalContent: original, |
| 84 | finalContent: content, |
| 85 | editCount: edits.length, |
| 86 | changed: original !== content, |
| 87 | }; |
| 88 | } |
| 89 | |
| 90 | export class MultiFileEditTool extends Tool<z.infer<typeof MultiFileEditArgs>> { |
| 91 | name = 'multi_file_edit'; |