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cliserver.lua

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local M = {}

M.client = nil

local function start()

local util = require "codeql.util"

util.message "Starting CodeQL CLI Server"

--local cmd = "codeql"

--local cmd_args = { "execute", "cli-server", "--logdir", "/tmp/codeql_queryserver" }

local cmd = "sh"

local cmd_args = { "-c", "codeql execute cli-server --logdir /tmp/codeql_queryserver" }

if not (vim.fn.executable(cmd) == 1) then

require("codeql.util").err_message(string.format("The given command %q is not executable.", cmd))

end

local stdin = vim.loop.new_pipe(false)

local stdout = vim.loop.new_pipe(false)

local stderr = vim.loop.new_pipe(false)

local handle, pid

do

local function onexit(_, _)

stdin:close()

stdout:close()

stderr:close()

handle:close()

end

local spawn_params = {

args = cmd_args,

stdio = { stdin, stdout, stderr },

}

handle, pid = vim.loop.spawn(cmd, spawn_params, onexit)

end

local callback

local stdoutBuffers = {}

local function request(c, cb)

callback = cb

if handle:is_closing() then

return false

end

vim.schedule(function()

local encoded = assert(vim.fn.json_encode(c))

stdin:write(encoded)

stdin:write(string.char(0))

end)

return true

end

stderr:read_start(function(err, data)

assert(not err, err)

vim.schedule(function()

if data then

require("codeql.util").err_message("cliserver error: " .. data)

end

end)

end)

stdout:read_start(function(err, data)

assert(not err, err)

if data and #data > 0 and string.byte(data, #data, #data) == 0 then

table.insert(stdoutBuffers, string.sub(data, 1, #data - 1))

callback(vim.trim(table.concat(stdoutBuffers)))

stdoutBuffers = {}

elseif data then

table.insert(stdoutBuffers, data)

end

end)

return {

handle = handle,

pid = pid,

request = request,

}

end

function M.runAsync(cmd, callback)

if not M.client then

M.client = start()

end

M.client.request(cmd, callback)

end

function M.runSync(cmd)

local util = require "codeql.util"

local timeout = require("codeql.config").values.job_timeout

local done = false

local result

M.runAsync(cmd, function(res)

result = res

done = true

end)

local wait_result = vim.wait(timeout, function()

vim.cmd [[redraw!]]

return done

end, 200)

if not wait_result then

util.message(string.format("'%s' was unable to complete in %s ms", table.concat(cmd, " "), timeout))

return nil

else

return result

end

end

function M.shutdownServer()

M.runAsync({ "shutdown" }, function(_)

print "Shutting down"

end)

end

return M