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https://issues.apache.org/jira/browse/KAFKA-4566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15831442#comment-15831442
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Akhilesh Naidu edited comment on KAFKA-4566 at 1/20/17 9:16 AM:
----------------------------------------------------------------
One approach could be to simulate the working of the readlink function, in a
portable manner.
below is the code snippet
{code:title=Example.sh|borderStyle=solid}
# Function to get target file in case of symlinks
GetTargetFile () {
FILE=$0
cd `dirname $FILE`
FILE=`basename $FILE`
# Iterate down a chain of symlinks
while [ -L "$FILE" ]
do
FILE=`readlink $FILE`
cd `dirname $FILE`
FILE=`basename $FILE`
done
# Append the file to the present directory,
# to get the canonicalized name.
FILE=`pwd -P`/$FILE
echo $FILE
}
exec $(dirname $(GetTargetFile $0))/kafka-run-class.sh
kafka.tools.ConsoleConsumer "$@"
{code}
have tested this on
1) MacOS (system details):-
bash -version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15)
Copyright (C) 2007 Free Software Foundation, Inc.
2) CentOS release 6.8 (system details):-
bash -version
GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
was (Author: akhilesh_naidu):
One approach could be to simulate the working of the readlink function, in a
portable manner.
below is the code snippet
------------------------------------------------------
# Function to get target file in case of symlinks
GetTargetFile () {
FILE=$0
cd `dirname $FILE`
FILE=`basename $FILE`
# Iterate down a chain of symlinks
while [ -L "$FILE" ]
do
FILE=`readlink $FILE`
cd `dirname $FILE`
FILE=`basename $FILE`
done
# Append the file to the present directory,
# to get the canonicalized name.
FILE=`pwd -P`/$FILE
echo $FILE
}
exec $(dirname $(GetTargetFile $0))/kafka-run-class.sh
kafka.tools.ConsoleConsumer "$@"
------------------------------------------------------
have tested this on
1) MacOS (system details):-
bash -version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin15)
Copyright (C) 2007 Free Software Foundation, Inc.
2) CentOS release 6.8 (system details):-
bash -version
GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
> Can't Symlink to Kafka bins
> ---------------------------
>
> Key: KAFKA-4566
> URL: https://issues.apache.org/jira/browse/KAFKA-4566
> Project: Kafka
> Issue Type: Bug
> Components: tools
> Affects Versions: 0.10.1.1
> Reporter: Stephane Maarek
> Labels: newbie
>
> in the kafka consumer for example, the last line is :
> https://github.com/apache/kafka/blob/trunk/bin/kafka-console-consumer.sh#L21
> {code}
> exec $(dirname $0)/kafka-run-class.sh kafka.tools.ConsoleConsumer "$@"
> {code}
> if I create a symlink using
> {code}
> ln -s
> {code}
> it doesn't resolve the right directory name because of $(dirname $0)
> I believe the right way is to do:
> {code}
> "$(dirname "$(readlink -e "$0")")"
> {code}
>
> Any thoughts on that before I do a PR?
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