| 1 | import { spawnSync } from "node:child_process" |
| 2 | |
| 3 | // Returns stdout untouched: a patch ends in newlines and can end in a context |
| 4 | // line that is a single space, so trimming it corrupts the patch. |
| 5 | const gitRaw = (cwd, args, input) => { |
| 6 | const result = spawnSync("git", args, { |
| 7 | cwd, |
| 8 | encoding: "utf8", |
| 9 | maxBuffer: 50 * 1024 * 1024, |
| 10 | input |
| 11 | }) |
| 12 | if (result.error) throw result.error |
| 13 | if (result.status !== 0) { |
| 14 | throw new Error(`${result.stdout}${result.stderr}`.trim()) |
| 15 | } |
| 16 | return result.stdout |
| 17 | } |
| 18 | |
| 19 | /** The uncommitted changes to tracked files of `root`, as a binary patch. */ |
| 20 | export const readWorktreeDiff = (root) => gitRaw(root, ["diff", "--binary", "HEAD", "--"]) |
| 21 | |
| 22 | /** Applies a patch read by `readWorktreeDiff` to the worktree at `root`. */ |
| 23 | export const applyWorktreeDiff = (root, diff) => { |
| 24 | if (diff !== "") gitRaw(root, ["apply", "--binary", "-"], diff) |
| 25 | } |