A Cargo subcommand for building, testing, and deploying client-side Web applications in Rust.
cargo-web is a Cargo subcommand that simplifies building, testing, and deploying client-side web applications written in Rust. It integrates with Rust's WebAssembly backends and Emscripten to compile code for the web, providing a seamless development experience similar to JavaScript toolchains.
Rust developers interested in building client-side web applications, especially those targeting WebAssembly or asm.js outputs.
Developers choose cargo-web because it consolidates multiple tools (compiler, test runner, dev server) into a single Cargo command, automates toolchain installation, and offers tight integration with Rust's ecosystem, reducing setup overhead.
A Cargo subcommand for the client-side Web
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Consolidates building, testing, and serving into single `cargo web` subcommands like `start` and `deploy`, reducing toolchain fragmentation as highlighted in the README's feature list.
Supports WebAssembly via Rust's native backend or Emscripten, and asm.js via Emscripten, allowing developers to choose outputs based on project needs, as detailed in the build options.
Automatically downloads and installs Emscripten and Rust targets on supported platforms like Linux x86-64, simplifying setup as mentioned in the installation and features sections.
Runs tests under headless Chrome or Node.js with `cargo web test`, streamlining the testing process without external configuration, per the README.
Automatic Emscripten installation only works on Linux x86-64 and x86, not macOS or Windows, requiring manual setup on other platforms as noted in the features list.
`Web.toml` has limitations like no spaces in `link-args` and unspecified processing order across crates, which can lead to subtle bugs, as admitted in the configuration section.
Tightly coupled with `stdweb` and shows infrequent updates (last changelog entry is 0.6.26), potentially lagging behind Rust and web standards advancements.