Markdown -> Outline sync

A github action to sync markdown files to your outline docs

Features:

• Creates/updates the markdown content of your outline docs
• All docs have to be in the same colletion (for now)
• Automatically parses and converts mermaid/plantuml diagrams to images (Powered by the diagram rendering service provided by https://kroki.io/#how)

Features

Diagram conversion

I want to add a diagram to a markdown file, I can add:

```mermaid
graph TD
A[Christmas] -->|Get money| B(Go shopping)
B --> C{Let me think}
C -->|One| D[Laptop]
C -->|Two| E[iPhone]
C -->|Three| F[fa:fa-car Car]
```

Which will result in the following being rendered in the outline page:

Installation (Github action)

The action provided by this project needs a surrounding workflow. The following example workflow shows how one would have github actions render, sync and commit updated markdown frontmatter for the main branch. The workflow will only run when markdown files have been updated and not commit if no changes are made.

1. Add a .github/workflows/outline_sync.yml file containing:

name: 'Sync docs to outline'

on:
  push:
    paths:
      - '**/*.md'
    branches:
      - "main"

jobs:
  outline:

    name: "Sync markdown to outline"
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 2

    - name: get changed files
      id: getfile
      run: |
        echo "::set-output name=files::$(git diff-tree --no-commit-id --name-only -r ${{ github.sha }} | grep -e '.*\.md$' | xargs)"

    - name: md files changed
      run: |
        echo ${{ steps.getfile.outputs.files }}

    - name: Sync to outline
      if: steps.getfile.outputs.files
      uses: benhowes/[email protected]
      with:
        files: ${{ steps.getfile.outputs.files }}
      env:
        OUTLINE_API_KEY: ${{secrets.OUTLINE_API_KEY}}
        OUTLINE_COLLECTION_ID: ${{secrets.OUTLINE_COLLECTION_ID}}

    - name: show changes
      id: changes
      run: |
        echo "::set-output name=files::$(git status --porcelain | sed -e 's!.*/!!' | xargs)"

    - name: md files tocommit
      run: |
        echo ${{ steps.changes.outputs.files }}

    - name: Commit files
      if: steps.changes.outputs.files
      run: |
        git config --local user.email "[email protected]"
        git config --local user.name "GitHub Action"
        git commit -m "Updated markdown [ci skip]" -a

    - name: Push changes
      if: steps.changes.outputs.files
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: ${{ github.ref }}

1. Create secrets:

• OUTLINE_API_KEY: Create in your outline account settings (Settings -> API Tokens)
• OUTLINE_COLLECTION_ID: I had to use my web browsers dev tools to find the UUID of the collection I wanted to use.

1. Push to main

Roadmap

• Basic github action
• Allow updating published status
• Support for sub pages (complex, needs some dependency resolution)
• Support for attachments
• Tests