Support multiline content message

[vinceglb]

Hello !

Thanks for your GA, it is very useful in our workflow 👌

Problem

I found that it is not easy to write a multiline message with this plugin.

Exemple

- name: Discord notification
  env:
    DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
  uses: Ilshidur/action-discord@master
  with:
    args: 'Hello\nHow are you?'

Result with:

Solution

I added a new environment variable called DISCORD_MULTILINE (boolean).
When DISCORD_MULTILINE is set to 1 (true), we make sure that the \n will be replace with new lines 🎉

- name: Discord notification
  env:
    DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
    DISCORD_MULTILINE: 1
  uses: Ilshidur/action-discord@master
  with:
    args: 'Release notes:\n- 🚀 New features\n- ✨ Cool stuff'

What do you think?

[vinceglb]

You can try it with EBfVince/action-discord@master

- name: Discord notification
  env:
    DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
    DISCORD_MULTILINE: 1
  uses: EBfVince/action-discord@master
  with:
    args: 'Release notes:\n- 🚀 New features\n- ✨ Cool stuff'

[pilotkid]

@Ilshidur Any update on this? It works great.

[zaanposni]

I also stumbled upon this problem and found that using double quote " instead of single quotes ' in your workflow.yml also fixes this issue.
Maybe we should adjust the example in the readme so it is more intuitive.
My workflow.yml:

      - name: Send discord notification
        env:
          DISCORD_WEBHOOK: ${{ secrets.DISCORD_WEBHOOK }}
        uses: Ilshidur/action-discord@master
        with:
          args: "🚀 bla bla.\n🚀 bla bla."

Which results in one message with multiple lines: