add: nvim: add LS of JETls

dotfiles/neovim/lua/lspconfig/server_configurations/jetls.lua

@@ -0,0 +1,68 @@
+-- local cmd = {
+--     'julia',
+--     '--startup-file=no',
+--     '--history-file=no',
+--     '-e',
+--     [[
+--     # Load JETLS.jl: attempt to load from ~/.julia/environments/nvim-lspconfig
+--     # with the regular load path as a fallback
+--     jet_install_path = joinpath(
+--         get(DEPOT_PATH, 1, joinpath(homedir(), ".julia")),
+--         "environments", "nvim-lspconfig"
+--     )
+--     pushfirst!(LOAD_PATH, jet_install_path)
+--     using JETLS
+--     popfirst!(LOAD_PATH)
+--     depot_path = get(ENV, "JULIA_DEPOT_PATH", "")
+--     project_path = let
+--         dirname(something(
+--             ## 1. Finds an explicitly set project (JULIA_PROJECT)
+--             Base.load_path_expand((
+--                 p = get(ENV, "JULIA_PROJECT", nothing);
+--                 p === nothing ? nothing : isempty(p) ? nothing : p
+--             )),
+--             ## 2. Look for a Project.toml file in the current working directory,
+--             ##    or parent directories, with $HOME as an upper boundary
+--             Base.current_project(),
+--             ## 3. First entry in the load path
+--             get(Base.load_path(), 1, nothing),
+--             ## 4. Fallback to default global environment,
+--             ##    this is more or less unreachable
+--             Base.load_path_expand("@v#.#"),
+--         ))
+--     end
+--     @info "Running JETLS language server" VERSION pwd() project_path
+--     @info "not running yet"
+--     JETLS.runserver(stdin, stdout)
+--   ]],
+-- }
+local cmd = {
+    'julia',
+    '--startup-file=no',
+    '--history-file=no',
+    '-e',
+    [[
+        println("===STARTING JETLS===")
+        using JETLS
+        JETLS.runserver(stdin, stdout)
+        @info "Running JETLS" VERSION pwd() project_path
+        @info "============================"
+    ]],
+}
+
+return {
+    default_config = {
+        cmd = cmd,
+        filetypes = { 'julia' },
+        root_dir = function(fname)
+            local util = require 'lspconfig.util'
+            return util.root_pattern 'Project.toml' (fname) or util.find_git_ancestor(fname) or
+                util.path.dirname(fname)
+        end,
+    },
+    docs = {
+        description = [[
+TBW
+    ]],
+    },
+}