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local a = require "nvim-lsp-installer.core.async"
local Result = require "nvim-lsp-installer.core.result"
local process = require "nvim-lsp-installer.process"
local platform = require "nvim-lsp-installer.platform"
---@alias JobSpawn Record<string, async fun(opts: JobSpawnOpts): Result>
---@type JobSpawn
local spawn = {
_aliases = {
npm = platform.is_win and "npm.cmd" or "npm",
gem = platform.is_win and "gem.cmd" or "gem",
composer = platform.is_win and "composer.bat" or "composer",
gradlew = platform.is_win and "gradlew.bat" or "gradlew",
},
}
local function Failure(err, cmd)
return Result.failure(setmetatable(err, {
__tostring = function()
if err.exit_code ~= nil then
return ("spawn: %s failed with exit code %d. %s"):format(cmd, err.exit_code, err.stderr or "")
else
return ("spawn: %s failed with no exit code. %s"):format(cmd, err.stderr or "")
end
end,
}))
end
local function parse_args(args, dest)
for _, arg in ipairs(args) do
if type(arg) == "table" then
parse_args(arg, dest)
elseif arg ~= vim.NIL then
dest[#dest + 1] = arg
end
end
return dest
end
setmetatable(spawn, {
__index = function(self, k)
---@param args string|nil|string[][]
return function(args)
local cmd_args = {}
parse_args(args, cmd_args)
---@type table<string, string>
local env = args.env
if args.with_paths then
env = env or {}
env.PATH = process.extend_path(args.with_paths)
end
---@type JobSpawnOpts
local spawn_args = {
stdio_sink = args.stdio_sink,
cwd = args.cwd,
env = env and process.graft_env(env) or args.env_raw,
args = cmd_args,
}
local stdio
if not spawn_args.stdio_sink then
stdio = process.in_memory_sink()
spawn_args.stdio_sink = stdio.sink
end
local cmd = self._aliases[k] or k
local _, exit_code = a.wait(function(resolve)
local handle, stdio = process.spawn(cmd, spawn_args, resolve)
if args.on_spawn and handle and stdio then
args.on_spawn(handle, stdio)
end
end)
if exit_code == 0 then
return Result.success {
stdout = stdio and table.concat(stdio.buffers.stdout, "") or nil,
stderr = stdio and table.concat(stdio.buffers.stderr, "") or nil,
}
else
return Failure({
exit_code = exit_code,
stdout = stdio and table.concat(stdio.buffers.stdout, "") or nil,
stderr = stdio and table.concat(stdio.buffers.stderr, "") or nil,
}, cmd)
end
end
end,
})
return spawn
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