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local configs = require 'nvim_lsp/configs'
local util = require 'nvim_lsp/util'
local server_name = "metals"
local bin_name = "metals"
local function make_installer()
local install_dir = util.path.join{util.base_install_dir, server_name}
local metals_bin = util.path.join{install_dir, bin_name}
local server_version
if (vim.g.metals_server_version) then
server_version = vim.g.metals_server_version
else
server_version = 'latest.release'
end
local X = {}
function X.install()
local install_info = X.info()
if install_info.is_installed then
print(server_name, "is already installed")
return
end
if not (util.has_bins("curl")) then
error('Need "curl" to install this.')
return
end
if not (util.has_bins("java")) then
error('Need "JDK" to install this.')
return
end
local coursier_exe = nil
if util.has_bins("cs") then
coursier_exe = "cs"
elseif util.has_bins("coursier") then
coursier_exe = "coursier"
end
if not coursier_exe then
coursier_exe = install_dir .. "/coursier"
local download_cmd = string.format("curl -fLo %s --create-dirs https://git.io/coursier-cli", coursier_exe)
local chmod_cmd = string.format("chmod +x %s", coursier_exe)
vim.fn.system(download_cmd)
vim.fn.system(chmod_cmd)
else
os.execute("mkdir -p " .. install_dir)
end
local install_cmd = string.format("%s bootstrap --java-opt -Xss4m --java-opt -Xms100m org.scalameta:metals_2.12:%s -r bintray:scalacenter/releases -r sonatype:snapshots -o %s -f", coursier_exe, server_version, metals_bin)
vim.fn.system(install_cmd)
end
function X.info()
return {
is_installed = util.path.exists(metals_bin);
install_dir = install_dir;
cmd = { metals_bin };
}
end
function X.configure(config)
local install_info = X.info()
if install_info.is_installed then
config.cmd = install_info.cmd
end
end
return X
end
local installer = make_installer()
configs[server_name] = {
default_config = {
cmd = {bin_name};
filetypes = {"scala"};
root_dir = util.root_pattern("build.sbt", "build.sc", "build.gradle", "pom.xml");
message_level = vim.lsp.protocol.MessageType.Log;
init_options = {
statusBarProvider = "show-message",
isHttpEnabled = true,
compilerOptions = {
snippetAutoIndent = false
}
};
};
on_new_config = function(config)
installer.configure(config)
end;
docs = {
package_json = "https://raw.githubusercontent.com/scalameta/metals-vscode/master/package.json";
description = [[
https://scalameta.org/metals/
To target a specific version on Metals, set the following.
If nothing is set, the latest stable will be used.
```vim
let g:metals_server_version = '0.8.4+106-5f2b9350-SNAPSHOT'
```
Scala language server with rich IDE features.
`metals` can be installed via `:LspInstall metals`.
]];
default_config = {
root_dir = [[util.root_pattern("build.sbt", "build.sc", "build.gradle", "pom.xml")]];
};
};
};
configs[server_name].install = installer.install
configs[server_name].install_info = installer.info
|
