mtxrun uses 'nil' for platform

mtxrun uses 'nil' for platform

[Vladimir Lomov]

Hello list,
recent update of context suite (beta) changed something in the code of
'mtxrun' so now it shows me a warning:
  ${CONTEXT}/bin/mtxrun:20683: attempt to concatenate a nil value (field 'platform')
I didn't notice this warning earilier.

The line 20683 in 'mtxrun' is
    local texos="texmf-"..os.platform

To check the return of 'os.platform' I made small lua script and run it
as
  mtxrun --script SCRIPT --platform=linux-64
It returned 'nil nil'. Is this expected behavior?

% SCRIPT.lua
----------------------- 8< ------------------------
local plat=os.platform
local plat2=os.getenv("MTX_PLATFORM")
print("platform = ", plat)
print("platform2 = ", plat2)
----------------------- 8< ------------------------

---
WBR, Vladimir Lomov


-- 
Hacking's just another word for nothing left to kludge.
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Re: mtxrun uses 'nil' for platform

[Hans Hagen]

On 4/16/2018 6:08 AM, Vladimir Lomov wrote:
> Hello list,
> recent update of context suite (beta) changed something in the code of
> 'mtxrun' so now it shows me a warning:
>    ${CONTEXT}/bin/mtxrun:20683: attempt to concatenate a nil value (field 'platform')
> I didn't notice this warning earilier.
> 
> The line 20683 in 'mtxrun' is
>      local texos="texmf-"..os.platform
> 
> To check the return of 'os.platform' I made small lua script and run it
> as
>    mtxrun --script SCRIPT --platform=linux-64
> It returned 'nil nil'. Is this expected behavior?
> 
> % SCRIPT.lua
> ----------------------- 8< ------------------------
> local plat=os.platform
> local plat2=os.getenv("MTX_PLATFORM")
> print("platform = ", plat)
> print("platform2 = ", plat2)
> ----------------------- 8< ------------------------

it should be

         local platform     = os.getenv("MTX_PLATFORM") or ""



-- 

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Re: mtxrun uses 'nil' for platform

[Vladimir Lomov]

** Hans Hagen [2018-04-16 10:47:32 +0200]:

> On 4/16/2018 6:08 AM, Vladimir Lomov wrote:
>> Hello list,
>> recent update of context suite (beta) changed something in the code of
>> 'mtxrun' so now it shows me a warning:
>>    ${CONTEXT}/bin/mtxrun:20683: attempt to concatenate a nil value (field 'platform')
>> I didn't notice this warning earilier.
>> 
>> The line 20683 in 'mtxrun' is
>>      local texos="texmf-"..os.platform
>> 
>> To check the return of 'os.platform' I made small lua script and run it
>> as
>>    mtxrun --script SCRIPT --platform=linux-64
>> It returned 'nil nil'. Is this expected behavior?
>> 
>> % SCRIPT.lua
>> ----------------------- 8< ------------------------
>> local plat=os.platform
>> local plat2=os.getenv("MTX_PLATFORM")
>> print("platform = ", plat)
>> print("platform2 = ", plat2)
>> ----------------------- 8< ------------------------
> 
> it should be
> 
>         local platform     = os.getenv("MTX_PLATFORM") or ""

Thank you, now 'mtxrun' runs without any warnings.

---
WBR, Vladimir Lomov

-- 
The  White Rabbit put on his spectacles.
	"Where shall  I  begin, please your Majesty ?" he asked.
	"Begin at the beginning,", the King said, very gravely, "and go on
till you come to the end: then stop."
		-- Lewis Carroll
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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