bytecodealliance/cargo-component

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A Cargo subcommand for creating WebAssembly components based on the component model proposal.

Stars: 593
Forks: 68
Open beginner issues: 0
Indexed issues: 52

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Jul 14, 2025
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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52 open issues indexed

Consider caching the default target check Open

bytecodealliance/cargo-component#15 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support bindings wrapper crates that can be used in component implementation crates Open

enhancement

bytecodealliance/cargo-component#76 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Building with `--release` fails to generate one component type section Open

bytecodealliance/cargo-component#80 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add `test` command to support running tests Open

enhancement

bytecodealliance/cargo-component#94 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
How to describe dependencies on local packages with relative path Open

bytecodealliance/cargo-component#120 · 10 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Handle `wasi:cli/run` specially for a command component Open

bytecodealliance/cargo-component#135 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Could cargo-component auto-compose components? Open

bytecodealliance/cargo-component#136 · 5 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Support multiple target dependencies with the same package id but different versions. Open

bytecodealliance/cargo-component#181 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Build Failure with Inline WIT with `wit-bindgen` Open

bytecodealliance/cargo-component#188 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Document `package.metadata.component` configuration Open

bytecodealliance/cargo-component#194 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Preserve comments from wit file in the binary Open

bytecodealliance/cargo-component#229 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Confusion around component dependencies and target dependencies Open

bytecodealliance/cargo-component#238 · 4 comments · 5 reactions · 0 assignees · Indexed Sep 14, 2026
Confusing error if versions of local dependencies don't align Open

bytecodealliance/cargo-component#239 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Secondary target dependencies Open

bytecodealliance/cargo-component#259 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cargo workspaces `core`, `alloc` imports and `macro` exports cannot be resolved Open

bytecodealliance/cargo-component#263 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`cargo component check --workspace` should not generate bindings for workspace members without `[package.metadata.component]` set Open

bytecodealliance/cargo-component#267 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Document the schema of the cargo-component Cargo.toml configuration Open

bytecodealliance/cargo-component#269 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Use something like nightly.link or a non-re-published release to avoid excess notifications Open

bytecodealliance/cargo-component#280 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Build error: `error: string size out of bounds (at offset {offset})` Open

bytecodealliance/cargo-component#281 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Resource Static Methods Cause Build Failure When Imported Open

bytecodealliance/cargo-component#284 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Minimum Supported Rust Version (MSRV) Open

bytecodealliance/cargo-component#298 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`cargo component add` not producing runnable/usable binaries Open

bytecodealliance/cargo-component#302 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cargo Component install give error in RPI 4 (ARM CORTEX-A72) Open

bytecodealliance/cargo-component#303 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Should the wit crate be relocated to wasm-pkg-tools? Open

bytecodealliance/cargo-component#307 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
move generated bindings files to a `generated/` sub-directory Open

bytecodealliance/cargo-component#315 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Default to `--editor none` Open

bytecodealliance/cargo-component#324 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
request: Support multiple package in a single WIT Open

bytecodealliance/cargo-component#325 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`cargo component serve` does not show in `cargo component --help` Open

bytecodealliance/cargo-component#326 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Versions of wit-bindgen don't match Open

bytecodealliance/cargo-component#327 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Does not link `env` module when compiling libs with `[no_std]` Open

bytecodealliance/cargo-component#333 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
How to describe a dependency on a world defined the same (wit) package but implemented in a separate (cargo) workspace package Open

bytecodealliance/cargo-component#337 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make composing packages with dependencies easier? Open

bytecodealliance/cargo-component#338 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`.gitignore` for `src/bindings.rs`? Open

bytecodealliance/cargo-component#339 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Apply `cargo fmt` after generating `bindings.rs` or ignore file Open

bytecodealliance/cargo-component#340 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Add a subcommand to clear the `cargo-component` cache Open

bytecodealliance/cargo-component#341 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Add additional `-S` permission flags for wasmtime for the `cargo component run` Open

bytecodealliance/cargo-component#343 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Generate `README.md` when doing `cargo component new` Open

bytecodealliance/cargo-component#344 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Use wasm-wasip2 target as default build target Open

bytecodealliance/cargo-component#355 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
cargo-component cannot find exported function in a world Open

bytecodealliance/cargo-component#360 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`cargo component build` does not add `mod bindings` to `main.rs` Open

bytecodealliance/cargo-component#361 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
better story for local dependencies Open

bytecodealliance/cargo-component#363 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
`cargo component` does not obey `.cargo/config.toml` Open

bytecodealliance/cargo-component#364 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enable `cargo component serve` to take a port Open

bytecodealliance/cargo-component#373 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Error: Unable to create cache directory Open

bytecodealliance/cargo-component#386 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Generate WIT, not Rust source code Open

bytecodealliance/cargo-component#387 · 1 comment · 4 reactions · 0 assignees · Indexed Sep 14, 2026
Configuration for additional_derives_ignore Open

bytecodealliance/cargo-component#392 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Questions regarding usage of `parse_arg` Open

bytecodealliance/cargo-component#395 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Latest releases don't include precompiled binary artifacts Open

bytecodealliance/cargo-component#397 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Components built on apple silicon don't run in browser Open

bytecodealliance/cargo-component#398 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Cannot specify world to target for package referenced from a registry Open

bytecodealliance/cargo-component#399 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

bytecodealliance/cargo-component

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