Import ideas

.clang-format

@@ -0,0 +1,12 @@
+BasedOnStyle: LLVM
+PointerAlignment: Right
+ColumnLimit: 79
+IndentWidth: 8
+TabWidth: 8
+ContinuationIndentWidth: 8
+ConstructorInitializerIndentWidth: 8
+AlwaysBreakAfterReturnType: TopLevelDefinitions
+BreakBeforeBraces: Linux
+IndentGotoLabels: false
+ForEachMacros: ["ARRAY_FOREACH", "LIST_FOREACH", "LIST_FOREACH_REVERSE", "VEC_FOREACH", "VEC_FOREACH_IDX"]
+SpaceBeforeParens: ControlStatementsExceptControlMacros

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM ubuntu:22.04
+
+WORKDIR /home/
+
+COPY . .
+
+ENV PATH="/root/.cargo/bin:$PATH"
+
+RUN bash ./setup.sh

.devcontainer/devcontainer.json

@@ -0,0 +1,32 @@
+{
+	"name": "Codespaces Rust Starter",
+	"extensions": [
+		"matklad.rust-analyzer",
+		"serayuzgur.crates",
+		"vadimcn.vscode-lldb",
+		"ms-vscode.makefile-tools",
+		"ms-vscode.cpptools-extension-pack"
+	],
+	"dockerFile": "Dockerfile",
+	"initCommands": [
+		"settings set target.disable-aslr false"
+	],
+	"settings": {
+		"editor.formatOnSave": true,
+		"terminal.integrated.profiles.linux": {
+			"zsh": {
+				"path": "/usr/bin/zsh",
+				"environment": [
+					"RUST_BACKTRACE=1",
+					"RUST_LOG=debug",
+					"RUST_LOG_STYLE=always"
+				]
+			}
+		},
+		"terminal.integrated.defaultProfile.linux": "zsh",
+		"files.exclude": {
+			"**/CONTRIBUTING.md": true,
+			"**/LICENSE": true
+		}
+	}
+}

.devcontainer/setup.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+## update and install 1st level of packages
+apt-get update
+apt-get install -y \
+    curl \
+    git \
+    gnupg2 \
+    jq \
+    sudo \
+    zsh \
+    build-essential \
+    cmake \
+    libssl-dev \
+    openssl \
+    unzip \
+    g++-12 \
+
+update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++-12 50   
+
+## Add package directories to PATH
+export PATH="/usr/bin:/usr/local/bin:$PATH"
+
+## update and install 2nd level of packages
+apt-get install -y pkg-config
+
+## install rustup and common components
+curl https://sh.rustup.rs -sSf | sh -s -- -y
+
+source $HOME/.cargo/env

.gitattributes

@@ -0,0 +1,2 @@
+# A hack to enable some degree of syntax highlighting on GitHub. Should be removed if GitHub ever receives native support for Wit files.
+*.wit linguist-language=Rust

.github/workflows/main.yml

@@ -10,5 +10,7 @@ jobs:
     name: Check ABI files are up-to-date
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - uses: WebAssembly/wit-abi-up-to-date@v15
+    - uses: actions/checkout@v4
+    - uses: WebAssembly/wit-abi-up-to-date@v16
+      with:
+        wit-bindgen: '0.14.0'

.github/workflows/wasmtime.yml

@@ -0,0 +1,130 @@
+name: Wasmtime
+
+on:
+  push:
+    branches: [ "main" ]
+    tags:
+      - "v*"
+  pull_request:
+    branches: [ "main" ]
+
+concurrency:
+  group: cmake-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-and-run:
+    env:
+      CC: ${{matrix.compiler}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{matrix.os}}
+
+    steps:
+    - name: Install dependencies (rustup)
+      run: |
+        rustup target add wasm32-wasi
+
+    - name: Install dependencies (cargo)
+      run: |
+        cargo install --version 1.0.51 wasm-tools
+        cargo install --version 0.14.0 wit-bindgen-cli
+
+    - name: Install dependencies (ubuntu)
+      if: startsWith(matrix.os, 'ubuntu-')
+      run: sudo apt-get update && sudo apt-get install -y pax
+
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Install wasmtime (ubuntu)
+      if: startsWith(matrix.os, 'ubuntu-')
+      run: |
+        curl -O -L https://github.com/bytecodealliance/wasmtime/releases/download/v14.0.4/wasmtime-v14.0.4-x86_64-linux.tar.xz
+        tar xvJf wasmtime-v14.0.4-x86_64-linux.tar.xz
+        echo "WASMTIME=$(pwd -P)/wasmtime-v14.0.4-x86_64-linux/wasmtime" >> ${GITHUB_ENV}
+
+    - name: Install wasmtime (macOS)
+      if: startsWith(matrix.os, 'macos-')
+      run: |
+        curl -O -L https://github.com/bytecodealliance/wasmtime/releases/download/v14.0.4/wasmtime-v14.0.4-x86_64-macos.tar.xz
+        tar xvzf wasmtime-v14.0.4-x86_64-macos.tar.xz
+        echo "WASMTIME=$(pwd -P)/wasmtime-v14.0.4-x86_64-macos/wasmtime" >> ${GITHUB_ENV}
+
+    - name: Build guest (Rust)
+      run: |
+        ./build.sh
+      working-directory: ${{github.workspace}}/guest
+
+    - name: Build guest (C)
+      run: |
+        ./build.sh
+      working-directory: ${{github.workspace}}/guest_c
+
+    - name: Build host
+      run: |
+        cargo build
+      working-directory: ${{github.workspace}}/host
+
+    - name: Run (component)
+      run: |
+        cargo run ../guest/guest-component.wasm
+      working-directory: ${{github.workspace}}/host
+
+    - name: Check the output (component)
+      run: |
+        test $(ls *.jpg|wc -l) -eq 60
+      working-directory: ${{github.workspace}}/host
+
+    - name: Clean up the output (component)
+      run: |
+        rm *.jpg
+      working-directory: ${{github.workspace}}/host
+
+    - name: Run (wasmtime precompiled component)
+      run: |
+        cargo run ../guest/guest-component.cwasm
+      working-directory: ${{github.workspace}}/host
+
+    - name: Check the output (wasmtime precompiled component)
+      run: |
+        test $(ls *.jpg|wc -l) -eq 60
+      working-directory: ${{github.workspace}}/host
+
+    - name: Clean up the output (wasmtime precompiled component)
+      run: |
+        rm *.jpg
+      working-directory: ${{github.workspace}}/host
+
+    - name: Run (C, component)
+      run: |
+        cargo run ../guest_c/guest-component.wasm
+      working-directory: ${{github.workspace}}/host
+
+    - name: Check the output (C, component)
+      run: |
+        test $(ls *.jpg|wc -l) -eq 60
+      working-directory: ${{github.workspace}}/host
+
+    - name: Clean up the output (C, component)
+      run: |
+        rm *.jpg
+      working-directory: ${{github.workspace}}/host
+
+    - name: Run (C, wasmtime precompiled component)
+      run: |
+        cargo run ../guest_c/guest-component.cwasm
+      working-directory: ${{github.workspace}}/host
+
+    - name: Check the output (C, precompiled component)
+      run: |
+        test $(ls *.jpg|wc -l) -eq 60
+      working-directory: ${{github.workspace}}/host
+
+    - name: Clean up the output (C, precompiled component)
+      run: |
+        rm *.jpg
+      working-directory: ${{github.workspace}}/host

.gitignore

@@ -0,0 +1,2 @@
+*/target/*
+*.lock