Move actions to top-level for nicer call syntax

For external repos this will be a lot simpler

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Checkout branch
         uses: actions/checkout@v2
 
-      - uses: ./.github/actions/setup
+      - uses: ./actions/setup
         with:
           toolchain: ${{ matrix.toolchain }}
 
@@ -45,18 +45,20 @@ jobs:
     container:
       image: devkitpro/devkitarm
       volumes:
+        # So the test action can `docker run` the runner:
         - '/var/run/docker.sock:/var/run/docker.sock'
-
+        # So the built test artifacts end up on the host, not just inside the action container
+        - '/tmp:/tmp'
     steps:
       - name: Checkout branch
         uses: actions/checkout@v3
 
-      - uses: ./.github/actions/setup
+      - uses: ./setup
         with:
           toolchain: ${{ matrix.toolchain }}
 
       - name: Build and run tests (unit + integration)
-        uses: ./.github/actions/test
+        uses: ./run-tests
         with:
           args: -- -v
 
@@ -67,9 +69,10 @@ jobs:
           # This ensures the citra logs and video output gets put in a directory
           # where we can upload as artifacts
           RUSTDOCFLAGS: " --persist-doctests target/armv6k-nintendo-3ds/debug/doctests"
-        uses: ./.github/actions/test
+        uses: ./run-tests
         with:
-          args: --doc -- -v
+          # TODO(#4): run them suckers
+          args: --doc --no-run -- -v
 
       - name: Upload citra logs and capture videos
         uses: actions/upload-artifact@v3

Dockerfile

@@ -8,6 +8,15 @@ ARG CITRA_CHANNEL=nightly
 ARG CITRA_RELEASE=1995
 RUN download_citra ${CITRA_CHANNEL} ${CITRA_RELEASE}
 
+FROM devkitpro/devkitarm as devkitarm
+
+# For some reason, citra isn't always happy when you try to run it for the first time,
+# so we build a simple dummy program to force it to create its directory structure
+RUN cd /opt/devkitpro/examples/3ds/graphics/printing/hello-world && \
+    echo 'int main(int, char**) {}' > source/main.c && \
+    make && \
+    mv hello-world.3dsx /tmp/
+
 FROM ubuntu:latest
 
 RUN --mount=type=cache,sharing=locked,target=/var/cache/apt \
@@ -19,7 +28,7 @@ RUN --mount=type=cache,sharing=locked,target=/var/cache/apt \
         libavfilter7 \
         xvfb
 
-COPY --from=devkitpro/devkitarm:latest /opt/devkitpro /opt/devkitpro
+COPY --from=devkitarm /opt/devkitpro /opt/devkitpro
 # There's no way to copy ENV values from other stages properly:
 # https://github.com/moby/moby/issues/37345
 # Luckily in this case we know exactly what the values should be:
@@ -28,7 +37,15 @@ ENV DEVKITARM=${DEVKITPRO}/devkitARM
 ENV PATH=${DEVKITARM}/bin:${PATH}
 
 COPY --from=builder /tmp/citra.AppImage /usr/local/bin/citra
-COPY ./docker/sdl2-config.ini /app/
+COPY --from=devkitarm /tmp/hello-world.3dsx /tmp/
+# We run citra once before copying our config file, so it should create its
+# necessary directory structure and run once with defaults
+RUN xvfb-run citra --appimage-extract-and-run /tmp/hello-world.3dsx; \
+    rm -f /tmp/hello-world.3dsx
+# Initial run seems to miss this one directory so just make it manually
+RUN mkdir -p /root/.local/share/citra-emu/log
+
+COPY ./docker/sdl2-config.ini /root/.config/citra-emu/
 COPY ./docker/test-runner.gdb /app/
 COPY ./docker/entrypoint.sh /app/
 

README.md

@@ -13,4 +13,6 @@ A set of tools for running automated Rust tests against Citra (3DS emulator).
   * `.github/actions/citra`: action for running test executables with Citra in
     workflows
 
-<!-- TODO: usage section for github actions -->
+## Usage
+
+<!-- TODO -->

run-tests/action.yml

@@ -40,9 +40,10 @@ runs:
       # https://github.com/actions/runner/issues/2058, which also means
       # we have to export this instead of using the env: key
       run: |
-        export CARGO_TARGET_ARMV6K_NINTENDO_3DS_RUNNER="docker run --rm
+        export CARGO_TARGET_ARMV6K_NINTENDO_3DS_RUNNER="
+            docker run --rm
                 -v /tmp:/tmp
-            -v ${GITHUB_WORKSPACE}/target:/app/target
+                -v ${{ github.workspace }}/target:/app/target
                 -v ${GITHUB_WORKSPACE}:${GITHUB_WORKSPACE}
                 ${{ inputs.runner-image }}:latest"
         env