Hans Hagen wrote:
> Oliver Buerschaper wrote:
>
>> Obviously, the problem is the symbolic link because LuaTeX tries and
>> finds argv[0] in $PATH but doesn't resolve /usr/texbin to its actual
>> location on disk. It's clear that in this situation there can't be
>> any difference between the distribution-independent syntax of
>> calling luatex and the direct invocation.
>>
>> Do you think LuaTeX's path discovery mechanism could be adapted to
>> handle symbolic links?
>
> there is lfs.symlinkattributes but i'm somewhat reluctant to usinmg
> platform specific things; if i have time i'll see if this function
> returns something useful
No need, here is function that works and is portable to all platforms:
function input.getownpath()
local olddir = lfs.currentdir()
if not input.ownpath then
for p in
string.gmatch(os.getenv("PATH"),"[^"..io.pathseparator.."]+") do
lfs.chdir(p)
p = lfs.currentdir()
local b = file.join(p,input.ownbin)
if lfs.isfile(b..".exe") or lfs.isfile(b) then
input.ownpath = p
break
end
end
if not input.ownpath then input.ownpath = '.' end
end
lfs.chdir(olddir)
return input.ownpath
end
Oliver, I have emailed you a patched version of luatools.lua. Can
you try to make sure that it works for you as well? (It should, but ...)
Best wishes,
Taco
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