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local path = require "nvim-lsp-installer.path"
local fs = require "nvim-lsp-installer.fs"
local Data = require "nvim-lsp-installer.data"
local installers = require "nvim-lsp-installer.installers"
local std = require "nvim-lsp-installer.installers.std"
local platform = require "nvim-lsp-installer.platform"
local process = require "nvim-lsp-installer.process"
local M = {}
local npm = platform.is_win and "npm.cmd" or "npm"
---@param installer ServerInstallerFunction
local function ensure_npm(installer)
return installers.pipe {
std.ensure_executables {
{ "node", "node was not found in path. Refer to https://nodejs.org/en/." },
{
"npm",
"npm was not found in path. Refer to https://docs.npmjs.com/downloading-and-installing-node-js-and-npm.",
},
},
installer,
}
end
local function create_installer(read_version_from_context)
---@param packages string[]
return function(packages)
return ensure_npm(
---@type ServerInstallerFunction
function(server, callback, context)
local pkgs = Data.list_copy(packages or {})
local c = process.chain {
cwd = server.root_dir,
stdio_sink = context.stdio_sink,
}
-- stylua: ignore start
if not (fs.dir_exists(path.concat { server.root_dir, "node_modules" }) or
fs.file_exists(path.concat { server.root_dir, "package.json" }))
then
c.run(npm, { "init", "--yes", "--scope=lsp-installer" })
end
if read_version_from_context and context.requested_server_version and #pkgs > 0 then
-- The "head" package is the recipient for the requested version. It's.. by design... don't ask.
pkgs[1] = ("%s@%s"):format(pkgs[1], context.requested_server_version)
end
-- stylua: ignore end
c.run(npm, vim.list_extend({ "install" }, pkgs))
c.spawn(callback)
end
)
end
end
---Creates an installer that installs the provided packages. Will respect user's requested version.
M.packages = create_installer(true)
---Creates an installer that installs the provided packages. Will NOT respect user's requested version.
---This is useful in situation where there's a need to install an auxiliary npm package.
M.install = create_installer(false)
---Creates a server installer that executes the given executable.
---@param executable string
---@param args string[]
function M.exec(executable, args)
---@type ServerInstallerFunction
return function(server, callback, context)
process.spawn(M.executable(server.root_dir, executable), {
args = args,
cwd = server.root_dir,
stdio_sink = context.stdio_sink,
}, callback)
end
end
---Creates a server installer that runs the given script.
---@param script string @The npm script to run (npm run).
function M.run(script)
return ensure_npm(
---@type ServerInstallerFunction
function(server, callback, context)
process.spawn(npm, {
args = { "run", script },
cwd = server.root_dir,
stdio_sink = context.stdio_sink,
}, callback)
end
)
end
---@param root_dir string @The directory to resolve the executable from.
---@param executable string
function M.executable(root_dir, executable)
return path.concat {
root_dir,
"node_modules",
".bin",
platform.is_win and ("%s.cmd"):format(executable) or executable,
}
end
return M
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