mix composer.lsp (composer v0.2.0)

Starts composer-ls, the language server for recipe group files, on stdio. Your editor runs it; see the Composer LSP guide.

mix composer.lsp

The host project is the directory the editor starts the server in: start your editor from the project (cd my_app && nvim). The server names the project in a message at startup and at the foot of every hover.

The server needs the gen_lsp package, an optional dependency of composer. Add it to the host project's deps:

{:gen_lsp, "~> 0.11.4", only: :dev}

Without it, this task says so and exits.