[Buildroot] Bash string manipulation in Kconfig

[Buildroot] Bash string manipulation in Kconfig

[Stefan Fröberg]

Hello everyone.

What is the equivalent buildroot thing for handling the following bash
string stuff ?

FULL_DOWNLOAD_URL="http://www.somedomain.com/blah/blah2/blahblahblah/somefile"
FILE=${FULL_DOWNLOAD_URL##*/}
echo ${FILE}

That will correctly print only the last part of the url, "somefile"

But how to do similar in buildroot  .mk files ???

Best regards
Stefan

[Buildroot] Bash string manipulation in Kconfig

[Thomas Petazzoni]

Le Mon, 03 Sep 2012 21:56:31 +0300,
Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :

> But how to do similar in buildroot  .mk files ???

	$(notdir $(FOO))

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] Bash string manipulation in Kconfig

[Stefan Fröberg]

3.9.2012 22:08, Thomas Petazzoni kirjoitti:
> Le Mon, 03 Sep 2012 21:56:31 +0300,
> Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :
>
>> But how to do similar in buildroot  .mk files ???
> 	$(notdir $(FOO))
>
> Thomas
Thanks Thomas!

That was fast :)

Stefan

[Buildroot] Bash string manipulation in Kconfig

[Stefan Fröberg]

3.9.2012 22:08, Thomas Petazzoni kirjoitti:
> Le Mon, 03 Sep 2012 21:56:31 +0300,
> Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :
>
>> But how to do similar in buildroot  .mk files ???
> 	$(notdir $(FOO))
>
> Thomas

One more question:

Why does not the following work ?

FULL_DOWNLOAD_URL=http://www.somedomain.com/blah/blah/somefile1
FULL_DOWNLOAD_URL+=http://www.somedomain2.com/blah2/blah2/blah/somefile2

for i in $(FULL_DOWNLOAD_URL);do \
    echo $(notdir $$i) ; \
done

I expect it to print:

somefile1
somefile2

But it prints instead:

http://www.somedomain.com/blah/blah/somefile1
http://www.somedomain2.com/blah2/blah2/blah/somefile2

Stefan

[Buildroot] Bash string manipulation in Kconfig

[Thomas Petazzoni]

Le Mon, 03 Sep 2012 22:53:52 +0300,
Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :

> for i in $(FULL_DOWNLOAD_URL);do \
>     echo $(notdir $$i) ; \

Inside this for loop, what you're writing is shell code, not make code.

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] Bash string manipulation in Kconfig

[Stefan Fröberg]

3.9.2012 23:01, Thomas Petazzoni kirjoitti:
> Le Mon, 03 Sep 2012 22:53:52 +0300,
> Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :
>
>> for i in $(FULL_DOWNLOAD_URL);do \
>>     echo $(notdir $$i) ; \
> Inside this for loop, what you're writing is shell code, not make code.
>
> Thomas
And because that notdir is buildroot make construct I can't use it
inside for-loop ?
Can you suggest another way to extract file part from variable that
contains bunch of URL's in for-loop ?

Stefan

[Buildroot] Bash string manipulation in Kconfig

[Yann E. MORIN]

Stefan, All,

On Monday 03 September 2012 21:53:52 Stefan Fr?berg wrote:
> 3.9.2012 22:08, Thomas Petazzoni kirjoitti:
> > Le Mon, 03 Sep 2012 21:56:31 +0300,
> > Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :
> >
> >> But how to do similar in buildroot  .mk files ???
> > 	$(notdir $(FOO))
> >
> > Thomas
> 
> One more question:
> 
> Why does not the following work ?
> 
> FULL_DOWNLOAD_URL=http://www.somedomain.com/blah/blah/somefile1
> FULL_DOWNLOAD_URL+=http://www.somedomain2.com/blah2/blah2/blah/somefile2
> 
> for i in $(FULL_DOWNLOAD_URL);do \
>     echo $(notdir $$i) ; \
> done
> 
> I expect it to print:
> 
> somefile1
> somefile2
> 
> But it prints instead:
> 
> http://www.somedomain.com/blah/blah/somefile1
> http://www.somedomain2.com/blah2/blah2/blah/somefile2

That's because $(notdir ...) is onterpreted by make, while $i is
interpreted by the shell.

In your case, you'd want to use the shell constrcut:
  for i in $(FULL_DOWNLOAD_URL);do \
      echo $${i##*/} ; \
  done

Regards,
Yann E. MORIN.

-- 
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| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
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[Buildroot] Bash string manipulation in Kconfig

[Stefan Fröberg]

3.9.2012 23:07, Yann E. MORIN kirjoitti:
> Stefan, All,
>
> On Monday 03 September 2012 21:53:52 Stefan Fr?berg wrote:
>> 3.9.2012 22:08, Thomas Petazzoni kirjoitti:
>>> Le Mon, 03 Sep 2012 21:56:31 +0300,
>>> Stefan Fr?berg <stefan.froberg@petroprogram.com> a ?crit :
>>>
>>>> But how to do similar in buildroot  .mk files ???
>>> 	$(notdir $(FOO))
>>>
>>> Thomas
>> One more question:
>>
>> Why does not the following work ?
>>
>> FULL_DOWNLOAD_URL=http://www.somedomain.com/blah/blah/somefile1
>> FULL_DOWNLOAD_URL+=http://www.somedomain2.com/blah2/blah2/blah/somefile2
>>
>> for i in $(FULL_DOWNLOAD_URL);do \
>>     echo $(notdir $$i) ; \
>> done
>>
>> I expect it to print:
>>
>> somefile1
>> somefile2
>>
>> But it prints instead:
>>
>> http://www.somedomain.com/blah/blah/somefile1
>> http://www.somedomain2.com/blah2/blah2/blah/somefile2
> That's because $(notdir ...) is onterpreted by make, while $i is
> interpreted by the shell.
>
> In your case, you'd want to use the shell constrcut:
>   for i in $(FULL_DOWNLOAD_URL);do \
>       echo $${i##*/} ; \
>   done
>
> Regards,
> Yann E. MORIN.
>
Ah... I see
Thanks Yann!
And Thanks Thomas!

These shell-make mixing is so confusing ....

Stefan

[Buildroot] Bash string manipulation in Kconfig

[Arnout Vandecappelle]

On 09/03/12 22:07, Yann E. MORIN wrote:
> Stefan, All,
>
> On Monday 03 September 2012 21:53:52 Stefan Fr?berg wrote:
>> 3.9.2012 22:08, Thomas Petazzoni kirjoitti:
>>> Le Mon, 03 Sep 2012 21:56:31 +0300,
>>> Stefan Fr?berg<stefan.froberg@petroprogram.com>  a ?crit :
>>>
>>>> But how to do similar in buildroot  .mk files ???
>>> 	$(notdir $(FOO))
>>>
>>> Thomas
>> One more question:
>>
>> Why does not the following work ?
>>
>> FULL_DOWNLOAD_URL=http://www.somedomain.com/blah/blah/somefile1
>> FULL_DOWNLOAD_URL+=http://www.somedomain2.com/blah2/blah2/blah/somefile2
>>
>> for i in $(FULL_DOWNLOAD_URL);do \
>>      echo $(notdir $$i) ; \
>> done
>>
>> I expect it to print:
>>
>> somefile1
>> somefile2
>>
>> But it prints instead:
>>
>> http://www.somedomain.com/blah/blah/somefile1
>> http://www.somedomain2.com/blah2/blah2/blah/somefile2
> That's because $(notdir ...) is onterpreted by make, while $i is
> interpreted by the shell.
>
> In your case, you'd want to use the shell constrcut:
>    for i in $(FULL_DOWNLOAD_URL);do \
>        echo $${i##*/} ; \
>    done
>

  Actually, in this case you just want
$(notdir $(FULL_DOWNLOAD_URL))

(the notdir function can take a list of filenames).


  Regards,
  Arnout

-- 
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