export.yml

# SPDX-FileCopyrightText: The Threadbare Authors
# SPDX-License-Identifier: MPL-2.0
name: "Build and Export Game"
on:
  workflow_dispatch:
    inputs:
      build_flatpak:
        description: "Also build a Flatpak bundle"
        type: boolean
  pull_request:
  release:
    types:
      - published
  push:
    branches:
      - main

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}

env:
  PCK_NAME: threadbare

jobs:
  build:
    name: Build for web
    runs-on: ubuntu-latest
    outputs:
      linux-changed: ${{ steps.changes.outputs.linux }}
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          # TODO: can we use --filter to avoid fetching the trees & blobs for
          # all historical commits, while still fetching the commit history &
          # tags?
          fetch-depth: 0
          fetch-tags: true

      - name: Create Git LFS file list
        run: git lfs ls-files -l |cut -d' ' -f1 |sort >.git/lfs-hashes.txt

      - name: Restore Git LFS object cache
        uses: actions/cache@v5
        with:
          path: .git/lfs
          key: ${{ runner.os }}-lfsdata-v1-${{ hashFiles('.git/lfs-hashes.txt') }}
          restore-keys: |
            ${{ runner.os }}-lfsdata-v1-
            ${{ runner.os }}-lfsdata

      - name: Fetch any needed Git LFS objects and prune extraneous ones
        run: git lfs fetch --prune

      - name: Check out Git LFS content
        run: git lfs checkout

      - id: changes
        uses: dorny/paths-filter@v4
        with:
          filters: |
            linux:
              - 'linux/**'
              - .github/workflows/export.yml

      - name: Export web build
        uses: endlessm/godot-export-action@v1
        with:
          godot_version: "4.6.2"

      - name: Check GDScript diagnostics
        run: |
          python tools/check-gdscript-lsp-diagnostics.py --godot build/godot || \
          echo "::warning::GDScript diagnostics check failed (exit code $?)"

      - name: Upload web artifact
        uses: actions/upload-artifact@v7
        with:
          name: web
          path: build/web

  flatpak:
    name: Build Flatpak
    needs: build
    if: ${{ inputs.build_flatpak || github.event_name == 'release' || needs.build.outputs.linux-changed == 'true' }}
    runs-on: ubuntu-latest
    container:
      image: ghcr.io/flathub-infra/flatpak-github-actions:freedesktop-25.08
      options: --privileged
    steps:
      - uses: actions/checkout@v6
        with:
          lfs: true
          sparse-checkout: |
            linux

      - name: Download Artifact
        uses: actions/download-artifact@v8
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          name: web
          path: build

      - name: Rename pck file
        run: |
          mv build/index.pck build/threadbare.pck

      - uses: flatpak/flatpak-github-actions/flatpak-builder@v6
        with:
          bundle: threadbare.flatpak
          manifest-path: linux/org.endlessaccess.threadbare.yml
          cache-key: "flatpak-builder-${{ github.sha }}"

      - name: Create Linux metadata bundle
        run: |
          tar --create --gzip \
            --dereference \
            --file threadbare-linux-metadata.tar.gz \
            --transform=s,^,threadbare-linux-metadata/, \
            linux/*

      - name: Upload Linux metadata bundle
        uses: actions/upload-artifact@v7
        with:
          path: threadbare-linux-metadata.tar.gz
          archive: false

  release:
    name: Attach to release
    needs: [build, flatpak]
    if: ${{ github.event_name == 'release' }}
    runs-on: ubuntu-latest
    env:
      GITHUB_TOKEN: ${{ github.token }}
    steps:
      - name: Download web bundle
        uses: actions/download-artifact@v8
        with:
          name: web
          skip-decompress: true

      - name: Download Flatpak bundle
        uses: actions/download-artifact@v8
        with:
          name: threadbare-x86_64.flatpak

      - name: Download Linux metadata bundle
        uses: actions/download-artifact@v8
        with:
          name: threadbare-linux-metadata.tar.gz

      - name: Attach assets to release
        shell: bash
        run: |
          set -ex
          unzip web.zip index.pck
          mv index.pck 'threadbare-${{ github.ref_name }}.pck'

          mv web.zip 'threadbare-${{ github.ref_name }}-web.zip'

          mv threadbare.flatpak 'threadbare-${{ github.ref_name }}-x86_64.flatpak'
          mv threadbare-linux-metadata.tar.gz 'threadbare-${{ github.ref_name }}-linux-metadata.tar.gz'

          for file in threadbare-${{ github.ref_name }}*; do
            gh release upload '${{ github.ref_name }}' "$file" --repo '${{ github.repository }}'
          done