Enable Docker build workflow

.github/workflows/build-docker.yml

@@ -13,9 +13,9 @@ on:
       plan:
         required: true
         type: string
-  # pull_request:
-  #  paths:
-  #    - .github/workflows/build-docker.yml
+  pull_request:
+   paths:
+     - .github/workflows/build-docker.yml
 
 env:
   TY_BASE_IMG: ghcr.io/${{ github.repository_owner }}/ty

Dockerfile

@@ -0,0 +1,41 @@
+FROM --platform=$BUILDPLATFORM ubuntu AS build
+ENV HOME="/root"
+WORKDIR $HOME
+
+RUN apt update && apt install -y build-essential curl python3-venv
+
+# Setup zig as cross compiling linker
+RUN python3 -m venv $HOME/.venv
+RUN .venv/bin/pip install cargo-zigbuild
+ENV PATH="$HOME/.venv/bin:$PATH"
+
+# Change to the ruff directory, which is the root for our build
+WORKDIR $HOME/ruff
+
+# Install rust
+ARG TARGETPLATFORM
+RUN case "$TARGETPLATFORM" in \
+    "linux/arm64") echo "aarch64-unknown-linux-musl" > rust_target.txt ;; \
+    "linux/amd64") echo "x86_64-unknown-linux-musl" > rust_target.txt ;; \
+    *) exit 1 ;; \
+    esac
+# Update rustup whenever we bump the rust version
+COPY ruff/rust-toolchain.toml rust-toolchain.toml
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --target $(cat rust_target.txt) --profile minimal --default-toolchain none
+ENV PATH="$HOME/.cargo/bin:$PATH"
+# Installs the correct toolchain version from rust-toolchain.toml and then the musl target
+RUN rustup target add $(cat rust_target.txt)
+
+# Build
+COPY ruff/crates crates
+COPY ruff/Cargo.toml Cargo.toml
+COPY ruff/Cargo.lock Cargo.lock
+RUN cargo zigbuild --bin ty --target $(cat rust_target.txt) --release
+RUN cp target/$(cat rust_target.txt)/release/ty /ty
+# TODO: Optimize binary size, with a version that also works when cross compiling
+# RUN strip --strip-all /ty
+
+FROM scratch
+COPY --from=build /ty /ty
+WORKDIR /io
+ENTRYPOINT ["/ty"]