app/routes/admin.posts.$slug.revisions.tsx

Functions

Imports

It imports app/lib/content/slug.mjs, app/lib/context.ts, app/lib/editor/frontmatter.ts, app/lib/editor/github.server.ts, app/lib/timing.ts. No module of this repo imports it.

Source

1import { data } from "react-router";
2
3import { timed, timedLoader } from "~/lib/timing";
4
5import { getEnv } from "~/lib/context";
6import { parsePost } from "~/lib/editor/frontmatter";
7import {
8  getCommitPatch,
9  listCommitsForPath,
10  readFile,
11} from "~/lib/editor/github.server";
12import { postPath } from "~/lib/content/slug.mjs";
13import type { Route } from "./+types/admin.posts.$slug.revisions";
14
15/** Exports no `action`: React Router answers a POST with 405, so no request can make this route write. */
16
17export async function loader({ params, request, context }: Route.LoaderArgs) {
18  return timedLoader(context, async (timings) => {
19    const env = getEnv(context);
20    const url = new URL(request.url);
21    const sha = url.searchParams.get("sha");
22
23    if (!sha) {
24      const commits = await timed(timings, "gh_commits", () =>
25        listCommitsForPath(env, postPath(params.slug)),
26      );
27      return Response.json({ commits });
28    }
29
30    // A sha reaches the GitHub API, so anything that is not hex is refused rather than forwarded.
31    if (!/^[0-9a-f]{7,40}$/i.test(sha)) {
32      throw data({ error: "Not a commit id." }, { status: 400 });
33    }
34
35    if (url.searchParams.get("want") === "content") {
36      const file = await timed(timings, "gh_read_file_at_sha", () =>
37        readFile(env, postPath(params.slug), sha),
38      );
39      if (!file) {
40        throw data(
41          { error: `This post does not exist at ${sha.slice(0, 7)}.` },
42          { status: 404 },
43        );
44      }
45      return Response.json({ fields: parsePost(file.content) });
46    }
47
48    const patch = await timed(timings, "gh_patch", () =>
49      getCommitPatch(env, sha, postPath(params.slug)),
50    );
51    return Response.json({ patch: patch?.patch ?? null });
52  });
53}