Upgrade to luacov master

.travis_deps.sh

@@ -5,14 +5,12 @@ set -e
 luarocks install dkjson --deps-mode=none
 luarocks install lanes
 
-mkdir busted
-wget -O - https://api.github.com/repos/Olivine-Labs/busted/tarball/master | tar xz -C busted --strip-components=1
+git clone --depth=1 https://github.com/Olivine-Labs/busted
 cd busted
 luarocks make busted-scm-0.rockspec
 cd ..
 
-mkdir luacov
-wget -O - https://api.github.com/repos/mpeterv/luacov/tarball/simplify-lines | tar xz -C luacov --strip-components=1
+git clone --depth=1 https://github.com/keplerproject/luacov
 cd luacov
 luarocks make rockspecs/luacov-scm-1.rockspec
 cd ..

spec/helper.lua

@@ -8,39 +8,16 @@ local function antipath(path)
    return (".."..dir_sep):rep(level)
 end
 
--- Try to load a lua module from `file_path` when run from `loc_path`.
-local function try_load(loc_path, file_path)
-   local real_path = antipath(loc_path)..file_path
-   local fd = io.open(real_path, "rb")
-
-   if not fd then
-      return
-   end
-
-   local src = fd:read("*a")
-   fd:close()
-   local func, err = (loadstring or load)(src, "@"..file_path) -- luacheck: compat
-   return err or func
-end
-
--- Return a package searcher which, when run from `loc_path`,
--- loads lua libraries from `lib_path`.
-function helper.prefix_searcher(loc_path, lib_path)
-   return function(package_name)
-      local package_path = lib_path..package_name:gsub("%.", dir_sep)
-      return try_load(loc_path, package_path..".lua") or
-         try_load(loc_path, package_path..dir_sep.."init.lua"), package_name
-   end
-end
-
 function helper.luacov_config(prefix)
    return {
       statsfile = prefix.."luacov.stats.out",
-      reportfile = prefix.."luacov.report.out",
-      deletestats = false,
-      runreport = false,
-      include = {"luacheck/[^/]+$"},
-      exclude = {}
+      modules = {
+         luacheck = "src/luacheck/init.lua",
+         ["luacheck.*"] = "src"
+      },
+      exclude = {
+         "bin/luacheck$"
+      }
    }
 end
 
@@ -52,11 +29,9 @@ function helper.luacheck_command(loc_path)
    local prefix = antipath(loc_path)
    local cmd = ("cd %s && lua"):format(loc_path)
 
-   -- Extend package.path to allow loading this helper.
-   cmd = cmd..(" -e 'package.path=[[%s?.lua;]]..package.path'"):format(prefix)
-   -- Add searcher for luacheck modules.
-   cmd = cmd..(" -e 'table.insert(package.loaders or package.searchers,1,"..
-      "require[[spec.helper]].prefix_searcher([[%s]],[[./src%s]]))'"):format(loc_path, dir_sep)
+   -- Extend package.path to allow loading this helper and luacheck modules.
+   cmd = cmd..(" -e 'package.path=[[%s?.lua;%ssrc%s?.lua;%ssrc%s?%sinit.lua;]]..package.path'"):format(
+      prefix, prefix, dir_sep, prefix, dir_sep, dir_sep)
 
    if luacov then
       -- Launch luacov.