Make scriptname a purely-internal item

l3build-aux.lua

@@ -83,6 +83,10 @@ function call(dirs, target, opts)
       s = s .. " " .. v
     end
   end
+  local scriptname = "l3build.lua"
+  if not match(arg[0], "l3build(%.lua)$") then
+    scriptname = "build.lua"
+  end
   for _,i in ipairs(dirs) do
     print(
       "Running script " .. scriptname .. " with target \"" .. target

l3build-variables.lua

@@ -160,7 +160,6 @@ if flatten == nil then
 end
 maxprintline = maxprintline or 79
 packtdszip   = packtdszip   or false
-scriptname   = scriptname   or "build.lua"
 typesetcmds  = typesetcmds  or ""
 typesetruns  = typesetruns  or 2
 versionform  = versionform  or ""

l3build.dtx

@@ -151,7 +151,6 @@
 \luavarset{flatten}     {true}        {Switch to flatten any source structure when sending to CTAN}
 \luavarset{maxprintline}{79}          {Length of line to use in log files}
 \luavarset{packtdszip}  {false}       {Switch to build a TDS-style zip file for CTAN}
-\luavarset{scriptname}  {"build.lua"} {Name of script used in dependencies}
 \luavarset{typesetcmds} {""}          {Instructions to be passed to \TeX{} when doing typesetting.}
 \luavarset{typsetcycles}{3}           {Number of cycles of typesetting to carry out.}
 \luavarset{versionform} {""}          {Nature of version strings for auto-replacement.}

l3build.lua

@@ -69,7 +69,6 @@ main = main or stdmain
 
 -- Load configuration file if running as a script
 if match(arg[0], "l3build(%.lua)$") then
-  scriptname = "l3build.lua"
   -- Options which do not need any configuration
   if options["help"] then
     help()