refactor(build): derocksify luacheck

test/lua_runner.lua

@@ -0,0 +1,83 @@
+local platform = vim.uv.os_uname()
+local deps_install_dir = table.remove(_G.arg, 1)
+local subcommand = table.remove(_G.arg, 1)
+local suffix = (platform and platform.sysname:lower():find'windows') and '.dll' or '.so'
+package.path = deps_install_dir.."/share/lua/5.1/?.lua;"..deps_install_dir.."/share/lua/5.1/?/init.lua;"..package.path
+package.cpath = deps_install_dir.."/lib/lua/5.1/?"..suffix..";"..package.cpath;
+
+local uv = vim.uv
+
+-- we use busted and luacheck and their lua dependencies
+-- But installing their binary dependencies with luarocks is very
+-- slow, replace them with vim.uv wrappers
+
+local system = {}
+package.loaded['system.core'] = system
+function system.monotime()
+  uv.update_time()
+  return uv.now()*1e-3
+end
+function system.gettime()
+  local sec, usec = uv.gettimeofday()
+  return sec+usec*1e-6
+end
+function system.sleep(sec)
+  uv.sleep(sec*1e3)
+end
+
+local term = {}
+package.loaded['term.core'] = term
+function term.isatty(_)
+  return uv.guess_handle(1) == 'tty'
+end
+
+local lfs = {_VERSION = 'fake'}
+package.loaded['lfs'] = lfs
+
+function lfs.attributes(path, attr)
+  local stat = uv.fs_stat(path)
+  if attr == 'mode' then
+    return stat and stat.type or ''
+  elseif attr == 'modification' then
+    if not stat then return nil end
+    local mtime = stat.mtime
+    return mtime.sec + mtime.nsec*1e-9
+  else
+    error('not implemented')
+  end
+end
+
+function lfs.currentdir()
+  return uv.cwd()
+end
+
+function lfs.chdir(dir)
+  local status, err = pcall(uv.chdir, dir)
+  if status then
+    return true
+  else
+    return nil, err
+  end
+end
+
+function lfs.dir(path)
+  local fs = uv.fs_scandir(path)
+  return function()
+    if not fs then
+      return
+    end
+    return uv.fs_scandir_next(fs)
+  end
+end
+
+function lfs.mkdir(dir)
+  return uv.fs_mkdir(dir, 493) -- octal 755
+end
+
+if subcommand == "busted" then
+  require 'busted.runner'({ standalone = false })
+elseif subcommand == "luacheck" then
+  require 'luacheck.main'
+else
+  error 'unknown subcommand'
+end