2025-10-19 21:53:52 -07:00
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# Sprout Development Guide
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This guide is a work in progress.
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## Development Setup
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You can use any Rust development environment to develop Sprout.
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Rustup is recommended as the Rust toolchain manager to manage Rust versions and targets.
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We currently only support `x86_64-unknown-uefi` and `aarch64-unknown-uefi` targets.
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To test your changes in QEMU, please run `./hack/dev/boot.sh`, you can specify `x86_64` or `aarch64`
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as an argument to boot.sh to boot the specified architecture.
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2025-11-03 20:47:21 -05:00
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## Crate Structure
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Sprout is split into multiple crates:
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2025-11-03 22:52:54 -05:00
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- `edera-sprout-boot` as `crates/boot`: Bootloader entrypoint for Sprout.
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2025-11-03 22:37:06 -05:00
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- `edera-sprout-build` at `crates/build`: Build logic for Sprout.
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2025-11-03 20:47:21 -05:00
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- `edera-sprout-config` at `crates/config`: Serialization structures for the Sprout configuration file.
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- `edera-sprout-eficore` at `crates/eficore`: Core library for Sprout EFI code.
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It is intended that overtime Sprout will be split into even more crates.
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2025-10-19 21:53:52 -07:00
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## Hack Scripts
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You can use the `./hack` scripts to run common development tasks:
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### ./hack/build.sh
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Builds the Sprout binary for the target that would support your current machine.
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### ./hack/assemble.sh
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Builds both x86_64 and aarch64 binaries into `target/assemble`.
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### ./hack/clean.sh
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Cleans the target directory and any docker images that were built.
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### ./hack/format.sh
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Formats the code using `rustfmt` and shell scripts with `shfmt`.
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### ./hack/autofix.sh
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Applies Clippy and `rustfmt` fixes to the code, and formats shell scripts with `shfmt`.
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## Dev Scripts
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### ./hack/dev/build.sh
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Build Sprout as OCI images using Docker, including a kernel, initramfs, xen, and other supporting files.
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### ./hack/dev/boot.sh
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Boot Sprout's dev environment using QEMU for testing. This will let you test your changes in a real environment booting
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Alpine Linux with an initramfs.
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