(patchText: string)
| 23 | } |
| 24 | |
| 25 | export function parse(patchText: string): ReadonlyArray<Hunk> { |
| 26 | const lines = stripHeredoc(patchText.trim()).split("\n") |
| 27 | const begin = lines.findIndex((line) => line.trim() === "*** Begin Patch") |
| 28 | const end = lines.findIndex((line) => line.trim() === "*** End Patch") |
| 29 | if (begin === -1 || end === -1 || begin >= end) throw new Error("Invalid patch format: missing Begin/End markers") |
| 30 | |
| 31 | const hunks: Hunk[] = [] |
| 32 | let index = begin + 1 |
| 33 | while (index < end) { |
| 34 | const line = lines[index]! |
| 35 | if (line.startsWith("*** Add File:")) { |
| 36 | const path = line.slice("*** Add File:".length).trim() |
| 37 | if (!path) throw new Error("Invalid add file path") |
| 38 | const parsed = parseAdd(lines, index + 1) |
| 39 | hunks.push({ type: "add", path, contents: parsed.content }) |
| 40 | index = parsed.next |
| 41 | continue |
| 42 | } |
| 43 | if (line.startsWith("*** Delete File:")) { |
| 44 | const path = line.slice("*** Delete File:".length).trim() |
| 45 | if (!path) throw new Error("Invalid delete file path") |
| 46 | hunks.push({ type: "delete", path }) |
| 47 | index++ |
| 48 | continue |
| 49 | } |
| 50 | if (line.startsWith("*** Update File:")) { |
| 51 | const path = line.slice("*** Update File:".length).trim() |
| 52 | if (!path) throw new Error("Invalid update file path") |
| 53 | let next = index + 1 |
| 54 | let movePath: string | undefined |
| 55 | if (lines[next]?.startsWith("*** Move to:")) { |
| 56 | movePath = lines[next]!.slice("*** Move to:".length).trim() |
| 57 | if (!movePath) throw new Error("Invalid move file path") |
| 58 | next++ |
| 59 | } |
| 60 | const parsed = parseUpdate(lines, next) |
| 61 | if (parsed.chunks.length === 0) throw new Error(`Invalid update hunk for ${path}: expected at least one @@ chunk`) |
| 62 | hunks.push({ type: "update", path, movePath, chunks: parsed.chunks }) |
| 63 | index = parsed.next |
| 64 | continue |
| 65 | } |
| 66 | throw new Error(`Invalid patch line: ${line}`) |
| 67 | } |
| 68 | return hunks |
| 69 | } |
| 70 | |
| 71 | export function derive(path: string, chunks: ReadonlyArray<UpdateFileChunk>, original: string): FileUpdate { |
| 72 | const source = splitBom(original) |
no test coverage detected