findcycle

#!/bin/bash
## find cycle in maven depnedency tree

if [ $# -gt 0 ];then
    sourcepath=$1
else 
    sourcepath=`pwd`
fi
if [ ! -f "$sourcepath/pom.xml" ]; then
    echo "$sourcepath is not a vaild maven project!"
    echo 'Usage : findcycle [path]'
    exit 1;
fi
mvn=`which mvn`
if [ "$mvn" = "" ];then
    echo "counld not found mvn in PATH,exit!"
    exit 1;
fi

cd $sourcepath
echo "scan cycle dependency in $sourcepath ..."
mvn dependency:tree -Dverbose | awk -F'- ' '{if(index($2,"maven-dependency-plugin")>0){indent=0;}else{indent=length($1);}stack[indent]=$2;if(index($0,"for cycle")>0){print "****found cycle****";for(i=0;i<=indent;i++){if(stack[i]!=null){print "->"stack[i]}}}}'
echo "scan finished!"