Rust health check
To pass the helix rust health check hx --health rust, there are 4 items which need to be addressed:
- (LSP) Language Server Protocol
- (DAP) Debug Adapter Protocol
- formatter
- queries
Example of how to set these up are in the Dockerfile below.
Currently (2024 Sep) there's an issue with the default apk helix package, so build from source
languages.toml
[[language]]
name = "rust"
formatter = { command = "rustfmt" }
Note: if making changes to language.debugger, need to include everything
Dockerfile
# temp dir for building
ARG HELIX_BUILD_DIR=/helix
# root dir for binary e.g. `/usr/bin/hx`
ARG HELIX_BIN_DIR=/usr
ARG HELIX_DEFAULT_RUNTIME=/usr/lib/helix/runtime
#==rust==
FROM docker.io/alpine AS rust
RUN apk update && \
apk add --no-cache curl
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
# update PATH for cargo
ENV PATH="/root/.cargo/bin:$PATH"
#==helix==
FROM rust AS helix-build
ARG HELIX_BUILD_DIR
ARG HELIX_BIN_DIR
ARG HELIX_DEFAULT_RUNTIME
ENV HELIX_DEFAULT_RUNTIME=$HELIX_DEFAULT_RUNTIME
# https://www.reddit.com/r/HelixEditor/comments/11sfobd/not_getting_syntax_highlighting_even_though/
ENV RUSTFLAGS="-C target-feature=-crt-static"
RUN apk update && \
apk add git g++
RUN git clone https://github.com/helix-editor/helix $HELIX_BUILD_DIR
WORKDIR $HELIX_BUILD_DIR
RUN cargo install --path helix-term --locked --root $HELIX_BIN_DIR
FROM rust AS helix
ARG HELIX_BUILD_DIR
ARG HELIX_BIN_DIR
ARG HELIX_DEFAULT_RUNTIME
ENV HELIX_DEFAULT_RUNTIME=$HELIX_DEFAULT_RUNTIME
ARG HOME=/root
ARG HELIX_CONFIG=$HOME/.config/helix/
# 1. (LSP) Language Server Protocol
RUN rustup component add rust-analyzer
# 2. (DAP) Debug Adapter Protocol
# workaround for lldb-dap https://github.com/helix-editor/helix/issues/9964
RUN apk add lldb && \
ln -s /usr/bin/lldb-vscode /usr/bin/lldb-dap
# 3. formatter
RUN mkdir -p $HELIX_CONFIG
COPY languages.toml $HELIX_CONFIG
# 4. queries
RUN mkdir -p $HELIX_DEFAULT_RUNTIME
COPY --from=helix-build $HELIX_BUILD_DIR/runtime $HELIX_DEFAULT_RUNTIME
# binary
COPY --from=helix-build $HELIX_BIN_DIR/bin/hx $HELIX_BIN_DIR/bin/
CMD ["hx"]
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