feat: add Idris2-Lsp suppport (#1283)

Add support for Idris2 via Idris2-Lsp.

1 files changed, 42 insertions, 0 deletions

diff --git a/lua/lspconfig/idris2_lsp.lua b/lua/lspconfig/idris2_lsp.lua
new file mode 100644
index 00000000..ad8ef594
--- /dev/null
+++ b/lua/lspconfig/idris2_lsp.lua
@@ -0,0 +1,42 @@
+local configs = require 'lspconfig/configs'
+local util = require 'lspconfig/util'
+
+configs.idris2_lsp = {
+  default_config = {
+    cmd = { 'idris2-lsp' },
+    filetypes = { 'idris2' },
+    root_dir = util.root_pattern '*.ipkg',
+  },
+  docs = {
+    description = [[
+https://github.com/idris-community/idris2-lsp
+
+The Idris 2 language server.
+
+Plugins for the Idris 2 filetype include
+[Idris2-Vim](https://github.com/edwinb/idris2-vim) (fewer features, stable) and
+[Nvim-Idris2](https://github.com/ShinKage/nvim-idris2) (cutting-edge,
+experimental).
+
+Idris2-Lsp requires a build of Idris 2 that includes the "Idris 2 API" package.
+Package managers with known support for this build include the
+[AUR](https://aur.archlinux.org/packages/idris2-api-git/) and
+[Homebrew](https://formulae.brew.sh/formula/idris2#default).
+
+If your package manager does not support the Idris 2 API, you will need to build
+Idris 2 from source. Refer to the
+[the Idris 2 installation instructions](https://github.com/idris-lang/Idris2/blob/main/INSTALL.md)
+for details.  Steps 5 and 8 are listed as "optional" in that guide, but they are
+necessary in order to make the Idris 2 API available.
+
+You need to install a version of Idris2-Lsp that is compatible with your
+version of Idris 2. There should be a branch corresponding to every released
+Idris 2 version after v0.4.0. Use the latest commit on that branch. For example,
+if you have Idris v0.5.1, you should use the v0.5.1 branch of Idris2-Lsp.
+
+If your Idris 2 version is newer than the newest Idris2-Lsp branch, use the
+latest commit on the `master` branch, and set a reminder to check the Idris2-Lsp
+repo for the release of a compatible versioned branch.
+]],
+  },
+}