LUAROCKS_UNAME_S doesn't work in tex mode

Use os.type and os.name instead, if os.name doesn't return cygwin then
luatex need to be fixed.

2 files changed, 3 insertions, 19 deletions

diff --git a/mkluatexfontdb.lua b/mkluatexfontdb.lua
index e8ce1a5..d4782ea 100644
--- a/mkluatexfontdb.lua
+++ b/mkluatexfontdb.lua
@@ -95,7 +95,7 @@ local function do_run_fc_cache(c)
       -- TODO: detect if fc-cache is available
     end
     local toexec = 'fc-cache'
-    if fonts.system == 'windows' then
+    if os.type == 'windows' then
         toexec = 'fc-cache.exe' -- TODO: to test on a non-cygwin Windows
     end
     log('executing %s...\n', toexec)
diff --git a/otfl-font-nms.lua b/otfl-font-nms.lua
index ba15f1c..aa958ea 100644
--- a/otfl-font-nms.lua
+++ b/otfl-font-nms.lua
@@ -277,33 +277,17 @@ local function load_font(filename, fontnames, status, newfontnames, newstatus, t
     end
 end
 
--- We need to detect the OS (especially cygwin) to convert paths.
-local system = LUAROCKS_UNAME_S or io.popen("uname -s"):read("*l")
-if system then
-    if system:match("^CYGWIN") then
-        system = 'cygwin'
-    elseif system:match("^Windows") then
-        system = 'windows'
-    else
-        system = 'unix'
-    end
-else
-    system = 'unix' -- ?
-end
-
-fonts.system = system
-
 -- path normalization:
 -- - a\b\c  -> a/b/c
 -- - a/../b -> b
 -- - /cygdrive/a/b -> a:/b
 local function path_normalize(path)
-    if system ~= 'unix' then
+    if os.type ~= 'unix' then
         path = path:gsub('\\', '/')
         path = path:lower()
     end
     path = file.collapse_path(path)
-    if system == "cygwin" then
+    if os.name == "cygwin" then
         path = path:gsub('^/cygdrive/(%a)/', '%1:/')
     end
     return path