zed-holocron

Zed editor extension for Holocron — a declarative schema and query compiler.

Registers holocron-lsp as a language server for *.holocron.yaml files, so schema errors (unknown columns, duplicate aliases, unknown types, etc.) show as live red squiggles in the editor — pointing at the exact YAML token at fault, with the same rustc-style diagnostics you get from the CLI.

Install

1. Install the LSP binary (one of):

cargo install holocron-lsp
# or
brew install holocron-lang/holocron/holocron-lsp

2. Install the Zed extension

Open Zed → zed: extensions (command palette) → search for Holocron → Install.

What you get

• Syntax highlighting (the YAML tree-sitter grammar — same as any other YAML).
• Live diagnostics from holocron-lsp on every keystroke.
• Diagnostics include source spans + "did you mean" / "available items" notes.

How it works

This extension declares a new "Holocron" language whose path_suffixes cover *.holocron.yaml and *.holocron.yml. The language uses the built-in YAML tree-sitter grammar for highlighting, and the extension wires up holocron-lsp (resolved from your PATH) as its language server.

Troubleshooting

\holocron-lsp` not found on PATH`

Install the binary using one of the commands in Install above, then restart Zed (so the extension re-runs the binary lookup).

Development

rustup target add wasm32-wasip1
cargo build --target wasm32-wasip1 --release
# Then in Zed: zed: install dev extension → point at this directory

License

MPL-2.0 — matches the parent project.