ci: fix document generation job

.github/workflows/update-docs.yml

@@ -1,13 +1,15 @@
-name: Update README
+name: Update docs
 
 on: push
 
 jobs:
   update-readme:
-    name: Update README
+    name: Update docs
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
+        with:
+          submodules: true
 
       - name: Install Neovim and dependencies
         env:
@@ -15,17 +17,20 @@ jobs:
         run: |
           bash ./.github/workflows/install_nvim.sh
 
-      - name: Update README
+      - name: Update docs
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           COMMIT_MSG: |
-            [docgen] Update README.md
+            [docgen] Update docs
             skip-checks: true
         run: |
           git config user.email "actions@github"
           git config user.name "Github Actions"
           git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git
-          python .github/update_readme.py
-          git add README.md doc/aerial.txt
+          python -m pip install pyparsing
+          python .github/main.py generate
+          python .github/main.py lint
+          nvim --headless -c 'set runtimepath+=.' -c 'helptags ALL' -c 'qall'
+          git add README.md doc
           # Only commit and push if we have changes
           git diff --quiet && git diff --staged --quiet || (git commit -m "${COMMIT_MSG}"; git push origin HEAD:${GITHUB_REF})