cargo-assemble

It's yet another day, and you list the members you want in the Cargo.toml file of your Rust workspace. Then you suddenly realize, you're stuck running cargo new for each missing member package. You sigh.

cargo-assemble eliminates this tedious workflow by creating missing member packages on demand from the workspace Cargo.toml. Once the workspace members are defined, run cargo assemble, and see it smart-generate the missing crates as either bin or lib, depending on the flags used.

Installation

Install from crates.io:

cargo install cargo-assemble

This installs the binary to Cargo’s bin directory (~/.cargo/bin in most cases), making it available as a Cargo subcommand.

Usage

By default, cargo-assemble creates all missing members as binary (bin) packages:

cargo assemble

Controlling Package Types

Given, an example workspace Cargo.toml that contains these members:

[workspace]
members = ["server", "cmd", "core", "database", "auth"]

If specific members are flagged using the --lib (or -l) flag, they'll be created as library crates, and the rest default as binary crates:

cargo assemble --lib core utils

However, if some members are explicitly flagged using --bin (or -b), they'll be created as binary crates, and the remaining members shall be library crates for ease of use:

cargo assemble --bin server cmd

In a nutshell,

• cargo assemble → Missing members in the directory are (all) created as bin crates.
• cargo assemble --lib core database auth → core, database, and auth are created as lib crates; server and cmd as bin crates.
• cargo assemble --bin cmd → cmd is created as a bin crate; the rest (server, core, etc.) as lib crates.

License

This project is licensed under the MIT License.