ci: Improvements

Make into one yml, rename to CI;
 if conditions and search filtering make multiple ymls unneeded.
Build all branches.
Ignore unrelated files.
Build with VS2019 and VS2017.
Set fail-fast to false.
Add Debug configuration, and reorder configurations to be consistent.
Don't use master version of actions.
Fetch submodules with new addition to checkout action.
Build in the build directory.
Use -j to potentially speed up building.
Use default shell/robocopy for artifact preparation.
Add SDL2 to artifacts.
Add artifacts for PRs.
Only do artifacts for Release.
Change artifact path to artifacts. (the trailing slash isn't needed)
Change artifact name.
Add release creation job:
 This creates a release with VS2019 and VS2017 builds using a CI-shortcommithash tag;
 For example, CI-31d4ea3
 This job is only ran for commits (push) to master, not pull requests, other branches, or forks.

Add badge to README

.github/workflows/CI.yml

@@ -0,0 +1,115 @@
+name: GitHub CI
+
+on:
+  push:
+    paths-ignore:
+      - '.github/CONTRIBUTING.md'
+      - '.github/FUNDING.md'
+      - '.github/ISSUE_TEMPLATE/*'
+      - 'doc/*'
+      - 'doc/*/*'
+      - '.appveyor.yml'
+      - '.azure-pipelines.yml'
+      - '.travis.yml'
+      - 'gen-msvc-project.bat'
+      - 'setup.bat'
+  pull_request:
+    paths-ignore:
+      - '.github/CONTRIBUTING.md'
+      - '.github/FUNDING.md'
+      - '.github/ISSUE_TEMPLATE/*'
+      - 'doc/*'
+      - 'doc/*/*'
+      - '.appveyor.yml'
+      - '.azure-pipelines.yml'
+      - '.travis.yml'
+      - 'gen-msvc-project.bat'
+      - 'setup.bat'
+
+jobs:
+  build-windows:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        configuration: [Release, Debug]
+        vsver: [VS2019, VS2017]
+        include:
+          - vsver: VS2019
+            os: windows-latest
+          - vsver: VS2017    # TODO: Remove VS2017 once WINE supports VS2019 runtimes;
+            os: windows-2016 # https://github.com/actions/virtual-environments/issues/68#issuecomment-602652021
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Generate cmake files
+        run: |
+          mkdir build && cd build
+          cmake .. -A Win32
+      - name: Build
+        working-directory: build
+        run: cmake --build . --config ${{ matrix.configuration }} -j $env:NUMBER_OF_PROCESSORS
+      - name: Prepare artifacts
+        if: matrix.configuration == 'Release'
+        run: |
+          robocopy . artifacts COPYING README.md /r:0 /w:0
+          robocopy build\bin\${{ matrix.configuration }} artifacts `
+            Cxbx.exe glew32.dll subhook.dll SDL2.dll `
+            cxbxr-debugger.exe capstone.dll cs_x86.dll /r:0 /w:0
+          If ($LastExitCode -le 7) { $LastExitCode = 0 }
+      - uses: actions/upload-artifact@v1
+        if: matrix.configuration == 'Release'
+        with:
+          name: CxbxReloaded-${{ matrix.configuration }}-${{ matrix.vsver }}
+          path: artifacts
+
+  release: # TODO: Remove develop once rebased
+    if: github.event.action != 'pull_request' && github.ref == 'refs/heads/develop' || 'refs/heads/master' && github.repository == 'Cxbx-Reloaded/Cxbx-Reloaded'
+    needs: build-windows
+    env:
+      artifact-1: CxbxReloaded-Release-VS2019
+      artifact-2: CxbxReloaded-Release-VS2017
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Download artifacts (1)
+        uses: actions/download-artifact@v1
+        with:
+          name: ${{ env.artifact-1 }}
+      - name: Download artifacts (2)
+        uses: actions/download-artifact@v1
+        with:
+          name: ${{ env.artifact-2 }}
+      - name: Prepare artifacts for release
+        run: | # download-artifact doesn't download a zip, so rezip it
+          7z a -mx1 $env:artifact-1.zip .\$env:artifact-1\*
+          7z a -mx1 $env:artifact-2.zip .\$env:artifact-2\*
+          echo "::set-env name=short_commit_sha::$(git rev-parse --short HEAD)"
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: CI-${{ env.short_commit_sha }}
+          release_name: CI-${{ env.short_commit_sha }}
+          prerelease: true
+      - name: Upload Release Asset (1)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{ env.artifact-1 }}.zip
+          asset_name: ${{ env.artifact-1 }}.zip
+          asset_content_type: application/zip
+      - name: Upload Release Asset (2)
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{ env.artifact-2 }}.zip
+          asset_name: ${{ env.artifact-2 }}.zip
+          asset_content_type: application/zip

.github/workflows/master_artifact_publish.yml

@@ -1,34 +0,0 @@
-name: Release Artifacts
-
-on:
-  push:
-    branches: develop
-
-jobs:
-  windows:
-    name: Windows
-    runs-on: windows-latest
-    strategy:
-      matrix:
-        configuration: [Release]
-    steps:
-      - uses: actions/checkout@master
-      - name: Generate cmake files
-        run: |
-          git submodule update --init --recursive --force
-          mkdir build && cd build
-          cmake .. -G "Visual Studio 16 2019" -A Win32
-      - name: Build
-        run: cmake --build build/ --config ${{ matrix.configuration }}
-      - name: Organize artifact files
-        shell: bash
-        run: |
-          mkdir dist
-          cp {COPYING,README.md} dist/
-          cd build/bin/${{ matrix.configuration }}
-          [ "${{ matrix.configuration }}" = "Debug" ] && sdl="SDL2d.dll" || sdl=SDL2.dll; cp {Cxbx.exe,glew32.dll,subhook.dll,$sdl} ../../../dist/
-          cp {cxbxr-debugger.exe,capstone.dll,cs_x86.dll} ../../../dist/
-      - uses: actions/upload-artifact@master
-        with:
-          name: CXBX-R-${{ matrix.configuration }}-${{ github.sha }}
-          path: dist/

.github/workflows/pr_verify_build.yml

@@ -1,21 +0,0 @@
-name: Verify PR Builds
-
-on: pull_request
-
-jobs:
-  windows:
-    name: Windows
-    runs-on: windows-latest
-    strategy:
-      matrix:
-        configuration: [Debug, Release]
-    steps:
-      - uses: actions/checkout@master
-      - name: Generate cmake files
-        run: |
-          git submodule update --init --recursive --force
-          mkdir build && cd build
-          cmake .. -G "Visual Studio 16 2019" -A Win32
-      - name: Build
-        run: cmake --build build/ --config ${{ matrix.configuration }}
-

README.md

@@ -1,5 +1,6 @@
 # Cxbx-Reloaded - Original Xbox Emulator
 [![License: GPL v2](https://img.shields.io/badge/License-GPL%20v2-blue.svg)](https://img.shields.io/badge/License-GPL%20v2-blue.svg)
+[![GitHub Actions](https://github.com/Cxbx-Reloaded/Cxbx-Reloaded/workflows/CI/badge.svg)](https://github.com/Cxbx-Reloaded/Cxbx-Reloaded/actions)
 [![AppVeyor](https://ci.appveyor.com/api/projects/status/iao43irxl3umbp33?svg=true)](https://ci.appveyor.com/project/SoullessSentinel/cxbx-reloaded)
 [![Azure](https://Cxbx-Reloaded.visualstudio.com/Cxbx-Reloaded/_apis/build/status/Cxbx-Reloaded.Cxbx-Reloaded?branchName=develop)](https://Cxbx-Reloaded.visualstudio.com/Cxbx-Reloaded/_build/latest?definitionId=7&branchName=develop)
 [![Travis](https://travis-ci.org/Cxbx-Reloaded/Cxbx-Reloaded.svg?branch=develop)](https://travis-ci.org/Cxbx-Reloaded/Cxbx-Reloaded)