work around merging restrictions

1 files changed, 32 insertions, 19 deletions

diff --git a/lualibs-basic.lua b/lualibs-basic.lua
index 63a7cd0..4a17bdc 100644
--- a/lualibs-basic.lua
+++ b/lualibs-basic.lua
@@ -11,33 +11,46 @@ local lualibs_basic_module = {
   license       = "See ConTeXt's mreadme.pdf for the license",
 }
 
+local find_file, error, warn, info
 if luatexbase and luatexbase.provides_module then
-  local _,_,_ = luatexbase.provides_module(lualibs_basic_module)
+  error, warn, info = luatexbase.provides_module(lualibs_basic_module)
+else
+  error, warn, info = texio.write_nl, texio.write_nl, texio.write_nl -- stub
 end
 
-local loadmodule = lualibs.loadmodule
+local loadmodule   = lualibs.loadmodule
+local stringformat = string.format
 
-loadmodule("lualibs-lua.lua")
-loadmodule("lualibs-lpeg.lua")
-loadmodule("lualibs-function.lua")
-loadmodule("lualibs-string.lua")
-loadmodule("lualibs-table.lua")
-loadmodule("lualibs-boolean.lua")
-loadmodule("lualibs-number.lua")
-loadmodule("lualibs-math.lua")
-loadmodule("lualibs-io.lua")
-loadmodule("lualibs-os.lua")
-loadmodule("lualibs-file.lua")
-loadmodule("lualibs-md5.lua")
-loadmodule("lualibs-dir.lua")
-loadmodule("lualibs-unicode.lua")
-loadmodule("lualibs-url.lua")
-loadmodule("lualibs-set.lua")
+local res
+if lualibs.prefer_merged then
+  res = loadmodule('lualibs-basic-merged.lua')
+else
+  info"Ignoring merged packages."
+end
+
+if not res then
+  info(stringformat("Falling back to “%s”.", basename))
+  loadmodule("lualibs-lua.lua")
+  loadmodule("lualibs-lpeg.lua")
+  loadmodule("lualibs-function.lua")
+  loadmodule("lualibs-string.lua")
+  loadmodule("lualibs-table.lua")
+  loadmodule("lualibs-boolean.lua")
+  loadmodule("lualibs-number.lua")
+  loadmodule("lualibs-math.lua")
+  loadmodule("lualibs-io.lua")
+  loadmodule("lualibs-os.lua")
+  loadmodule("lualibs-file.lua")
+  loadmodule("lualibs-md5.lua")
+  loadmodule("lualibs-dir.lua")
+  loadmodule("lualibs-unicode.lua")
+  loadmodule("lualibs-url.lua")
+  loadmodule("lualibs-set.lua")
+end
 
 -- these don’t look much basic to me:
 --l-pdfview.lua
 --l-xml.lua
 
-
 -- vim:tw=71:sw=2:ts=2:expandtab
 --  End of File `lualibs.lua'.