initial commit

Dockerfile

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+FROM emscripten/emsdk
+
+RUN wget -O /tmp/wasi-stub.tar.gz https://github.com/astrale-sharp/wasm-minimal-protocol/releases/download/wasi-stub-0.2.0/wasi-stub-x86_64-unknown-linux-musl.tar.gz &&\
+    mkdir /tmp/wasi-stub &&\
+    tar -xf /tmp/wasi-stub.tar.gz -C /tmp/wasi-stub --strip-components=1 &&\
+    mv /tmp/wasi-stub/wasi-stub /bin/wasi-stub &&\
+    chmod +x /bin/wasi-stub &&\
+    rm -r /tmp/wasi-stub*
+
+COPY compile.sh /bin/compile
+RUN chmod +x /bin/compile

README.md

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+# typst-plugin-compiler
+
+This repository provides a simple docker image to easily compile Typst WASM plugins using EMCC and wasi-stub
+
+The wasi-stub executable is taken from the [wasm-minimal-protocol repo](https://github.com/astrale-sharp/wasm-minimal-protocol).
+
+## Compiling a plugin
+
+1. Write your C plugin. You can start from the example provided in the [wasm-minimal-protocol repo](https://github.com/astrale-sharp/wasm-minimal-protocol).
+
+2. Run the docker image:
+   ```bash
+   docker run --rm -v $(pwd):/src git.kb28.ch/hel/typst-plugin-compiler:latest compile plugin.c
+   ```
+
+3. Copy the output file (for the above example, `plugin.wasm`) to your Typst project

compile.sh

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+#!/bin/bash
+
+scriptSrc=$1
+scriptWasm=${scriptSrc%.c}.wasm
+
+echo "Compiling $scriptSrc -> $scriptWasm"
+emcc --no-entry -O3 -s ERROR_ON_UNDEFINED_SYMBOLS=0 $scriptSrc -o $scriptWasm
+
+echo "Stubbing $scriptWasm"
+wasi-stub $scriptWasm -o $scriptWasm