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local configs = require 'nvim_lsp/configs'
local util = require 'nvim_lsp/util'
local lsp = vim.lsp
local api = vim.api
local server_name = "elmls"
local bin_name = "elm-language-server"
local installer = util.npm_installer {
server_name = server_name;
packages = { "elm", "elm-test", "elm-format", "@elm-tooling/elm-language-server" };
binaries = {bin_name, "elm", "elm-format", "elm-test"};
}
local default_capabilities = lsp.protocol.make_client_capabilities()
default_capabilities.offsetEncoding = {"utf-8", "utf-16"}
local elm_root_pattern = util.root_pattern("elm.json")
configs[server_name] = {
default_config = {
cmd = {bin_name};
-- TODO(ashkan) if we comment this out, it will allow elmls to operate on elm.json. It seems like it could do that, but no other editor allows it right now.
filetypes = {"elm"};
root_dir = function(fname)
local filetype = api.nvim_buf_get_option(0, 'filetype')
if filetype == 'elm' or (filetype == 'json' and fname:match("elm%.json$")) then
return elm_root_pattern(fname)
end
end;
init_options = {
elmPath = "elm",
elmFormatPath = "elm-format",
elmTestPath = "elm-test",
elmAnalyseTrigger = "change",
};
};
on_new_config = function(new_config)
local install_info = installer.info()
if install_info.is_installed then
if type(new_config.cmd) == 'table' then
-- Try to preserve any additional args from upstream changes.
new_config.cmd[1] = install_info.binaries[bin_name]
else
new_config.cmd = {install_info.binaries[bin_name]}
end
new_config.init_options = util.tbl_deep_extend('force', new_config.init_options, {
elmPath = install_info.binaries["elm"];
elmFormatPath = install_info.binaries["elm-format"];
elmTestPath = install_info.binaries["elm-test"];
})
end
end;
docs = {
package_json = "https://raw.githubusercontent.com/elm-tooling/elm-language-client-vscode/master/package.json";
description = [[
https://github.com/elm-tooling/elm-language-server#installation
If you don't want to use Nvim to install it, then you can use:
```sh
npm install -g elm elm-test elm-format @elm-tooling/elm-language-server
```
]];
default_config = {
root_dir = [[root_pattern("elm.json")]];
};
};
}
configs[server_name].install = installer.install
configs[server_name].install_info = installer.info
-- vim:et ts=2 sw=2
|
