Bash feat. Ant runner

I like Ant. I made some maintenance tasks for my projects and here Bash script that launches them via crontab.

It uses native Ant XML build files that you can specify by absolute or relative path.

There is useful option -r your@email.com. When that is set and build is failed, you will recieve on specified e-mail address short message that build was broken, include it's name.

albass@cisco:~$ ./ant-runner.sh -t db/analyze
Will run ./db/analyze.xml build.

Use -d key if you want to debug it.

#!/bin/bash

# Description: ANT runner
# Author: Alexey Bass (albass)
# Version: 1.1.0, 16/10/2008
SCRIPT_VERSION="1.1.0, 16/10/2008"

JAVA_HOME=/usr
# ant location. home directory, not file
ANT_HOME=/var/family/java-ant/ant
ANT_SCRIPT=$ANT_HOME/bin/ant
PATH=$PATH:$ANT_HOME/bin

if [ ! -f $ANT_SCRIPT ]; then
  echo "[ERROR] ANT not found at $ANT_SCRIPT"
  echo "Please, check the location and correct ANT_HOME if need."
  exit 1
fi

# Will be used for reporting to email without it.
# Example: albass => albass + DEFAULT_EMAIL_SUFFIX
# Example: admin@site.com => admin@site.com
DEFAULT_EMAIL_SUFFIX=@gmail.com

# Holds email for reports.
REPORT_EMAIL=
# need to send notice email if build failed
IS_SEND_EMAIL_ON_FAIL=0

# holds task name to run
TASK_TO_RUN=

# normally, we don't need debug. that's default.
IS_DEBUG=0

print_usage()
{
cat << EOF
Usage: ant.sh [options] [-r email] -t task

OPTIONS:
  -h  Show this message
  -t  Task to run. Absolute or relative (to PWD) path without ".xml"
  -v  Print version information and exit
  -a  Runs Ant diagnostics
  -r  Send fail notice to provided e-mail address if need
  -d  Enable debug mode, shows extra info while running

EOF
}

print_versions()
{
echo $0
echo ANT runner $SCRIPT_VERSION
echo

which java
java -version
echo

echo $ANT_SCRIPT
$ANT_SCRIPT -version

echo
}

run_ant_diagnostics()
{
echo $ANT_SCRIPT
$ANT_SCRIPT -diagnostics

echo
}

correct_report_email()
{
# check for full e-mail was specified
local TEST=`echo "$REPORT_EMAIL" | grep "@"`

if [ -z $TEST ]; then
  REPORT_EMAIL=$REPORT_EMAIL$DEFAULT_EMAIL_SUFFIX
fi

if [ $IS_DEBUG -eq 1 ]; then
  echo "[DEBUG] Fail notice will be sent to $REPORT_EMAIL"  
fi
}

# no options specified
if [ $# -eq 0 ]; then
  echo "Hey, try -h for help"
  exit 1
fi

# get throught passed options
while getopts "hvr:t:da" OPTION
do
  case $OPTION in
    h)
      print_usage
      exit 0
      ;;
    a)
      run_ant_diagnostics
      exit 0
      ;;
    v)
      print_versions
      exit 0
      ;;
    r)
      IS_SEND_EMAIL_ON_FAIL=1
      REPORT_EMAIL=$OPTARG
      ;;
    t)
      TASK_TO_RUN="$OPTARG.xml"
      ;;
    d)
      echo "[DEBUG] is on"
      IS_DEBUG=1
      ANT_SCRIPT="$ANT_SCRIPT -debug"
      ;;
    ?)
      print_usage
      exit 0
      ;;
  esac
done

if [ $IS_SEND_EMAIL_ON_FAIL -eq 1 ]; then
  correct_report_email
fi

# user has task?
if [ ${#TASK_TO_RUN} -eq 0 ]; then
  echo "[ERROR] Please, specify task to run"
  exit 1
fi

# if not absolute path, set relative
if [ ! -f $TASK_TO_RUN ]; then
  TASK_TO_RUN="./$TASK_TO_RUN"
fi

if [ $IS_DEBUG -eq 1 ]; then
  echo "[DEBUG] Task path: $TASK_TO_RUN"  
fi

# does build exists?
if [ ! -f $TASK_TO_RUN ]; then
  echo "[ERROR] Can not find task: $TASK_TO_RUN"
  echo
  exit 1
fi

if [ $IS_DEBUG -eq 1 ]; then
  echo "[DEBUG] Starting ANT"  
fi
$ANT_SCRIPT -buildfile $TASK_TO_RUN
if [ $? -ne 0 ]; then
  if [ $IS_SEND_EMAIL_ON_FAIL -eq 1 ]; then
   
    if [ $IS_DEBUG -eq 1 ]; then
      echo "[DEBUG] Sending e-mail..."  
    fi
    
    mailx -s "[ANT-RUNNER] FAILED $TASK_TO_RUN" $REPORT_EMAIL <<< "O_o ACHTUNG!!!"

    if [ $IS_DEBUG -eq 1 ]; then
      echo "[DEBUG] E-mail sent"  
    fi

    echo
    exit 1;
  else
    if [ $IS_DEBUG -eq 1 ]; then
      echo "[DEBUG] Congratulations, Failed! E-mail will not sent, use -r for that"
    fi
  fi 
fi
echo

exit 0

In case you wish to improve it and not so familiar with Bash, here is the manual.