[jira] [Resolved] (SPARK-4162) Make scripts symlinkable

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-4162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-4162.
------------------------------
    Resolution: Duplicate

Duplicate of https://issues.apache.org/jira/browse/SPARK-3482 and https://issues.apache.org/jira/browse/SPARK-2960  Have a look at the PR for 3482 and suggest changes. This has come up several times so would be good to get it fixed.

> Make scripts symlinkable 
> -------------------------
>
>                 Key: SPARK-4162
>                 URL: https://issues.apache.org/jira/browse/SPARK-4162
>             Project: Spark
>          Issue Type: Improvement
>          Components: Deploy, EC2, Spark Shell
>    Affects Versions: 1.1.0
>         Environment: Mac, linux
>            Reporter: Shay Seng
>
> Scripts are not symlink-able  because they all use:
>     FWDIR="$(cd `dirname $0`/..; pwd)" 
> to detect the parent Spark dir, which doesn't take into account symlinks. 
> Instead replace the above line with:
> SOURCE=$0;
> SCRIPT=`basename "$SOURCE"`;
> while [ -h "$SOURCE" ]; do
>     SCRIPT=`basename "$SOURCE"`;
>     LOOKUP=`ls -ld "$SOURCE"`;
>     TARGET=`expr "$LOOKUP" : '.*-> \(.*\)$'`;
>     if expr "${TARGET:-.}/" : '/.*/$' > /dev/null; then
>         SOURCE=${TARGET:-.};
>     else
>         SOURCE=`dirname "$SOURCE"`/${TARGET:-.};
>     fi;
> done;
> FWDIR="$(cd `dirname "$SOURCE"`/..; pwd)"



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