Add Flathub setup script, action, and workflow (#2027)

* Add Flathub setup script and workflow

Co-Authored-By: yujonglee <yujonglee.dev@gmail.com>

* Use setup-flathub.sh script in workflow

Co-Authored-By: yujonglee <yujonglee.dev@gmail.com>

* Convert setup-flathub to action and use in desktop_cd

Co-Authored-By: yujonglee <yujonglee.dev@gmail.com>

* Comment out setup_flathub action in desktop_cd for now

Co-Authored-By: yujonglee <yujonglee.dev@gmail.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

Author: yujonglee

.github/actions/setup_flathub/action.yaml

@@ -0,0 +1,6 @@
+runs:
+  using: "composite"
+  steps:
+    - if: ${{ runner.os == 'Linux' }}
+      shell: bash
+      run: bash ${{ github.workspace }}/scripts/setup-flathub.sh

.github/workflows/desktop_cd.yaml

@@ -200,6 +200,7 @@ jobs:
         with:
           platform: linux
       - uses: ./.github/actions/pnpm_install
+      # - uses: ./.github/actions/setup_flathub
       - run: pnpm -F ui build
       - run: ./scripts/resource.sh "./apps/desktop/${{ env.TAURI_CONF_PATH }}" "resources/libonnxruntime.so"
       - run: |

.github/workflows/submit_flathub.yaml

@@ -0,0 +1,12 @@
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/setup_flathub
+
+      - name: Build Flatpak
+        run: flatpak-builder --user --force-clean build-dir flatpak/com.hyprnote.app.yml

scripts/setup-flathub.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+. "$(dirname "$0")/bash-guard.sh"
+
+set -euo pipefail
+
+sudo apt-get update
+sudo apt-get install -y flatpak flatpak-builder
+flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo