#!/bin/bash
#
#  Execution:  % pmd-algs4 HelloWorld.java
#  Execution:  % pmd-algs4 [filename or directory name]

# installation directory
INSTALL=/usr/local/algs4

# configuration file
PMD_XML=${INSTALL}/pmd.xml

# find the latest version of PMD
PMD=pmd-bin-[0-9].[0-9].[0-9]
PMD_EXECUTE=$(ls -td ${INSTALL}/${PMD}/bin/run.sh | head -1)

# execution command
EXECUTE="$PMD_EXECUTE pmd -format csv -shortnames -R $PMD_XML -version 1.8 -language java -d $@"

$EXECUTE | grep -v "Rule set" \
         | awk  'BEGIN {FS = ",\"" };
                 {print $3":"$5": "$6" ["$8"]"};
                 END { if (NR == 1) print "PMD ends with " NR " warning."
                       else if (NR > 1) print "PMD ends with " NR " warnings."
                 }' \
         | sed 's/"//g'