Thanks for the background.  This is a tough one, because all the
proposed solutions are very long, and we would have to put them in each
script file.  I think it's probably not worth it, since people can write
their own wrappers that suit their needs.  But I haven't thought about
it that much-- maybe there is a good solution out there.

best,
Colin


On Thu, Jan 26, 2017, at 22:37, Akhilesh Naidu wrote:
> Hi Colin,
> 
> 
> I had picked up this bug from when it was reported specifically for the
> script 'kafka-console-consumer.sh'.
> 
> Going through the bug description it seemed the reporter wanted to call
> the scripts form maybe another
> 
> location using symlinks. Hence the extra code to replicate the readlink
> behavior.
> 
> 
> Going ahead we thought that this could also end up being a generic case
> for all the other scripts in the bin file
> 
> and hence the confusion about having the same code duplicated in all the
> other files in bin directory.
> 
> 
> 
> 
> Regards
> 
> Akhilesh
> 
> 
> 
> 
> ________________________________
> From: Colin McCabe <cmcc...@apache.org>
> Sent: Thursday, January 26, 2017 12:55:16 AM
> To: dev@kafka.apache.org
> Subject: Re: [DISCUSS]- JIRA ISSUE KAFKA-4566 : Can't Symlink to Kafka
> bins
> 
> Thanks for looking at this, Akhilesh.  Can you be a little bit clearer
> about why keeping all the scripts or script symlinks in the same
> directory is not an option for you?
> 
> 
> best,
> 
> Colin
> 
> 
> 
> On Tue, Jan 24, 2017, at 06:01, Akhilesh Naidu wrote:
> 
> > Hi,
> 
> 
> 
> >
> 
> 
> 
> >
> 
> 
> 
> > The bug deals with the problem one encounters in case if the script
> > 'kafka-console-consumer.sh' is executed
> >  through a symlink which could be placed on a different location
> >  on disk
> >
> 
> >  The initial suggestion provided in the bug was to make changes in the
> >  below line
> >  exec $(dirname $0)/kafka-run-class.sh
> >  kafka.tools.ConsoleConsumer "$@"
> >
> 
> >  to replace it to
> 
> >  "$(dirname "$(readlink -e "$0")")"
> 
> >
> 
> >  But as commented in the bug earlier,
> 
> >  the above would be OS dependent as MacOS version of readlink does not
> >  have an -e option.
> >
> 
> >  1) One approach could be to simulate the working of the readlink
> >     function, in a portable manner. I have a working patch for this.
> >  The details are available in the comment link
> 
> >  
> > https://issues.apache.org/jira/browse/KAFKA-4566?focusedCommentId=15831442&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15831442
> >
> 
> >
> 
> >  2) Now seeing that the other scripts in the 'kafka/bin/' location
> >     also could have similar calls from symlink
> >  I tried moving the function snippet into a separate utilities file,
> >  in order to reuse,
> >  but if we intend to include the utilities file in all the scripts we
> >  need to have the exact base location to our utilities file,
> >  which is what we wrote our function in the first place for :(.
> 
> >  So the only option seems to duplicate the function code in all
> >  required scripts.
> >
> 
> >  Any suggestions on how to go about the above.
> 
> >
> 
> >
> 
> 
> 
> >
> 
> 
> 
> >
> 
> 
> 
> > Regards
> 
> 
> 
> > Akhilesh
> 
> 
> 
> >
> 
> 
> 
> >
> 
> 
> 
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