Re: Looking for well-logged Make output

[Alex Nelson]

Hi Martin and list,

I was hoping there would be a way for Make to continue or halt based on the 
presence of a file _and_ its respective exit status log - i.e. the file and the 
declaration that the file's good.  Is this outside the scope of known Makes?

--Alex


On May 14, 2013, at 18:35 , Martin d'Anjou <address@hidden> wrote:

> Alexander,
> 
> When you run make a second time in the same folder, it will continue based on 
> the presence of files, not based on their content. The response from Eric 
> Melski on stackoverflow is right: make sure the output file is created only 
> when the entire recipe has worked.
> 
> Martin
> 
> 
> On 13-05-14 03:30 PM, Alexander Nelson wrote:
>> Hello all,
>> 
>> This email is somewhat a cross-post of a Stack Overflow question:
>> http://stackoverflow.com/questions/16488581/looking-for-well-logged-make-output
>> 
>> The gist is, I run workflows focused on single input files, logging stdout,
>> stderr and shell exit status of each step.  I think a natural way to
>> express these workflows is with a Makefile.  However, in the event of an
>> error (which in my case is more frequently nothing of the program's fault -
>> the power dies, a disk fills, menial stuff), I'd like Make to be able to
>> resume a workflow based on the exit status of the intermediary target steps.
>> 
>> That is, if the Make rules include target "target4", I'd like Make to
>> interpret "target4.status.log" having the contents "0" or "0\n" as "Ok,
>> target4 built."  But if the log contained anything else, like "1\n" or
>> "Started", Make would treat that as not-ok and halt.
>> 
>> From the crickets except one person on Stack Overflow; the gmake man page;
>> Wikipedia's make-like programs page; and writing a mess of Bash, Python and
>> Make to do this before; I'm guessing this doesn't exist in any Make.
>>  However, I figure this list may provide a more authoritative answer.
>> 
>> Has anybody seen something like what I'm asking about before?
>> 
>> --Alex
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>

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