Add in-source to in-wiki link transformer

.gitattributes

@@ -1 +1,2 @@
-*.sh eol=lf
+cliw eol=lf
+cli.ts eol=lf

.github/workflows/test-action.yml

@@ -6,13 +6,15 @@ on:
     branches: "master"
     paths-ignore:
       - .gitignore
+      - .gitattributes
       - LICENSE
       - README.md
       - .github/**
       - "!.github/workflows/test-action.yml"
   pull_request:
     paths-ignore:
       - .gitignore
+      - .gitattributes
       - LICENSE
       - README.md
       - .github/**

.gitignore

@@ -0,0 +1,2 @@
+# https://github.com/jcbhmr/deno_wrapper
+.deno

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "deno.enable": true
+}

README.md

@@ -111,6 +111,11 @@ is specific to GitHub wikis.
   not push to the remote wiki. The default is `false`. This is useful for
   testing.
 
+- **`preprocess`:** If this option is true, we will preprocess the wiki to move
+  the `README.md` to `Home.md` as well as rewriting all `.md` links to be bare
+  links. This helps ensure that the Markdown works in source control as well as
+  the wiki. The default is true.
+
 #### `strategy:` input
 
 There are some specific usecases where using `strategy: init` might be better
@@ -133,28 +138,6 @@ than the default `strategy: clone`.
   tab. This is essentially the concatenation of `${{ github.server_url }}`,
   `${{ github.repository }}`, and the `/wiki` page.
 
-### Preprocessing
-
-You may wish to strip the `[link](page.md)` `.md` suffix from your links to make
-them viewable in GitHub source view (with the `.md`) _as well as_ in GitHub wiki
-(without the `.md`; pretty URLs!). You can use a preprocessing action like
-[Strip MarkDown extensions from links action] to remove those `.md` suffixes
-before using this action. Here's an example:
-
-```yml
-publish-wiki:
-  runs-on: ubuntu-latest
-  steps:
-    - uses: actions/checkout@v3
-    - uses: impresscms-dev/strip-markdown-extensions-from-links-action@v1.0.0
-      with:
-        path: wiki
-    - uses: Andrew-Chen-Wang/github-wiki-action@v4
-```
-
-❤️ If you have an awesome preprocessor action that you want to add here, let us
-know! We'd love to add an example.
-
 ### Cross-repo wikis
 
 You _can_ use this action to deploy your octocat/mega-docs repository to the
@@ -189,9 +172,24 @@ jobs:
           path: .
 ```
 
+## Development
+
+![Deno](https://img.shields.io/static/v1?style=for-the-badge&message=Deno&color=000000&logo=Deno&logoColor=FFFFFF&label=)
+![GitHub Actions](https://img.shields.io/static/v1?style=for-the-badge&message=GitHub+Actions&color=2088FF&logo=GitHub+Actions&logoColor=FFFFFF&label=)
+
+This GitHub Action uses a self-downloaded version of Deno. See `cliw` for the
+`cli.ts` wrapper script that downloads the Deno binary and runs the TypeScript
+code. The main script itself is ~100 lines of code, so it's not too bad.
+
+ℹ Because the version of Deno is _pinned_, it's recommended to every-so-often
+bump it to the latest version.
+
+To test the action, open a PR! The `test-action.yml` workflow will run the code
+with `dry-run: true` as well as a real run! Yes, this does get tedious swapping
+between your IDE and the PR, but it's the easiest way to test the action.
+
 <!-- prettier-ignore-start -->
 [Decathlon/wiki-page-creator-action#11]: https://github.com/Decathlon/wiki-page-creator-action/issues/11
 [supported markup languages]: https://github.com/github/markup#markups
-[Strip MarkDown extensions from links action]: https://github.com/marketplace/actions/strip-markdown-extensions-from-links-action
 [PAT]: https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token
 <!-- prettier-ignore-end -->

action.yml

@@ -64,6 +64,14 @@ inputs:
       push to the remote wiki. The default is false. This is useful for testing.
     required: true
     default: false
+  preprocess:
+    description: >-
+      If this option is true, we will preprocess the wiki to move the README.md
+      to Home.md as well as rewriting all .md links to be bare links. This helps
+      ensure that the Markdown works in source control as well as the wiki. The
+      default is true.
+    required: true
+    default: true
 outputs:
   wiki_url:
     description: >-
@@ -75,7 +83,7 @@ runs:
   using: composite
   steps:
     - id: main
-      run: '"${GITHUB_ACTION_PATH%/}/src/$INPUT_STRATEGY.sh"'
+      run: '"${GITHUB_ACTION_PATH%/}/cliw"'
       shell: bash
       env:
         INPUT_STRATEGY: ${{ inputs.strategy }}
@@ -86,3 +94,4 @@ runs:
         INPUT_COMMIT_MESSAGE: ${{ inputs.commit-message }}
         INPUT_IGNORE: ${{ inputs.ignore }}
         INPUT_DRY_RUN: ${{ inputs.dry-run }}
+        INPUT_PREPROCESS: ${{ inputs.preprocess }}

cli.ts

@@ -0,0 +1,101 @@
+#!/usr/bin/env -S deno run -Aq
+// Copyright 2023 Jacob Hummer
+// SPDX-License-Identifier: Apache-2.0
+import process from "node:process";
+import {
+  readFile,
+  writeFile,
+  appendFile,
+  readdir,
+  rename,
+} from "node:fs/promises";
+import { existsSync } from "node:fs";
+import { copy } from "npm:fs-extra@^11.1.1";
+import * as core from "npm:@actions/core@^1.10.0";
+import { temporaryDirectory } from "npm:tempy@^3.1.0";
+import { $ } from "npm:zx@^7.2.2";
+import { remark } from "npm:remark@^14.0.3";
+import { visit } from "npm:unist-util-visit@^5.0.0";
+import { resolve } from "node:path";
+
+core.startGroup("process.env");
+console.table(process.env);
+core.endGroup();
+
+const serverURL = core.getInput("github_server_url");
+const repo = core.getInput("repository");
+const wikiGitURL = `${serverURL}/${repo}.wiki.git`;
+const workspacePath = process.cwd();
+const d = temporaryDirectory();
+process.chdir(d);
+$.cwd = d;
+
+process.env.GH_TOKEN = core.getInput("token");
+process.env.GH_HOST = new URL(core.getInput("github_server_url")).host;
+await $`gh auth setup-git`;
+
+if (core.getInput("strategy") === "clone") {
+  await $`git config --global --add safe.directory ${process.cwd()}`;
+  await $`git clone ${wikiGitURL} .`;
+} else if (core.getInput("strategy") === "init") {
+  await $`git init -b master`;
+  await $`git remote add origin ${wikiGitURL}`;
+  await $`git fetch`;
+} else {
+  throw new DOMException("Unknown strategy", "NotSupportedError");
+}
+
+// https://github.com/stefanzweifel/git-auto-commit-action/blob/master/action.yml#L35-L42
+await $`git config user.name github-actions[bot]`;
+await $`git config user.email 41898282+github-actions[bot]@users.noreply.github.com`;
+
+await appendFile(".git/info/exclude", core.getInput("ignore"));
+await copy(resolve(workspacePath, core.getInput("path")), process.cwd());
+
+if (core.getBooleanInput("preprocess")) {
+  // https://github.com/nodejs/node/issues/39960
+  if (existsSync("README.md")) {
+    await rename("README.md", "Home.md");
+    console.log("Moved README.md to Home.md");
+  }
+
+  const mdRe = /\.(?:md|markdown|mdown|mkdn|mkd|mdwn|mkdown|ron)$/;
+  const plugin = () => (tree: any) =>
+    visit(tree, ["link", "linkReference"], (node: any) => {
+      if (!mdRe.test(node.url)) {
+        return;
+      }
+      if (!new URL(node.url, "file:///-/").href.startsWith("file:///-/")) {
+        return;
+      }
+
+      const x = node.url;
+      node.url = node.url.replace(mdRe, "");
+      if (new URL(node.url, "file:///-/").href === "file:///-/README") {
+        node.url = "Home";
+      }
+
+      console.log(`Rewrote ${x} to ${node.url}`);
+    });
+  for (const file of await readdir($.cwd!)) {
+    if (!mdRe.test(file)) {
+      continue;
+    }
+
+    let md = await readFile(file, "utf-8");
+    md = (await remark().use(plugin).process(md)).toString();
+    await writeFile(file, md);
+  }
+}
+
+await $`git add -Av`;
+await $`git commit --allow-empty -m ${core.getInput("commit_message")}`;
+
+if (core.getBooleanInput("dry_run")) {
+  await $`git show`;
+  await $`git push -f origin master --dry-run`;
+} else {
+  await $`git push -f origin master`;
+}
+
+core.setOutput("wiki_url", `${serverURL}/${repo}/wiki`);

cliw

@@ -0,0 +1,32 @@
+#!/bin/sh
+# Copyright 2023 Jacob Hummer
+# SPDX-License-Identifier: Apache-2.0
+# Based on https://github.com/jcbhmr/deno_wrapper
+set -e
+# https://stackoverflow.com/a/29835459
+script_dir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd -P)
+deno_dir="$script_dir/.deno"
+
+# https://manpages.ubuntu.com/manpages/kinetic/en/man1/chronic.1.html
+chronic() (
+  set +e
+  output=$($@ 2>&1)
+  exit_code=$?
+  set -e
+  if [ "$exit_code" -ne 0 ]; then
+    echo "$output" >&2
+  fi
+  return "$exit_code"
+)
+
+if [ ! -d "$deno_dir" ]; then
+  # https://github.com/denoland/deno_install#readme
+  export DENO_INSTALL=$deno_dir
+  curl -fsSL https://deno.land/x/install/install.sh | chronic sh -s "v1.35.1"
+fi
+
+# https://github.com/denoland/deno_install/blob/master/install.sh#L53
+export DENO_INSTALL=$deno_dir
+export PATH="$DENO_INSTALL/bin:$PATH"
+
+exec "$script_dir/cli.ts" "$@"