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#! /bin/sh

#   Copyright 2001-2004 The Apache Software Foundation
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
#   Adapted for ALT Linux by Mikhail Zabaluev <mhz@altlinux.org>
#   and Igor Vlasenko <viy@altlinux.org>

rpm_mode=true

# Extract launch and ant arguments, (see details below).
ant_exec_args=
no_config=false
use_jikes_default=false
ant_exec_debug=false
show_help=false
for arg in "$@" ; do
  if [ "$arg" = "--noconfig" ] ; then
    no_config=true
  elif [ "$arg" = "--usejikes" ] ; then
    use_jikes_default=true
  elif [ "$arg" = "--execdebug" ] ; then
    ant_exec_debug=true
  elif [ my"$arg" = my"--h"  -o my"$arg" = my"--help"  ] ; then
    show_help=true
    ant_exec_args="$ant_exec_args -h"
  else
    if [  my"$arg" = my"-h"  -o  my"$arg" = my"-help" ] ; then
      show_help=true
    fi
    ant_exec_args="$ant_exec_args \"$arg\""
  fi
done

# Source/default ant configuration
if $no_config ; then
  rpm_mode=false
  usejikes=$use_jikes_default
else
  # load system-wide ant configuration (ONLY if ANT_HOME has NOT been set)
  if [ -z "$ANT_HOME" -o "$ANT_HOME" = "/usr/share/ant" ]; then
      if [ -f "/etc/ant.conf" ] ; then
          . /etc/ant.conf
      fi
  fi

  # load user ant configuration
  if [ -f "$HOME/.ant/ant.conf" ] ; then
    . $HOME/.ant/ant.conf
  fi
  if [ -f "$HOME/.antrc" ] ; then
    . "$HOME/.antrc"
  fi

  # provide default configuration values
  if [ -z "$rpm_mode" ] ; then
    rpm_mode=false
  fi
  if [ -z "$usejikes" ] ; then
    usejikes=$use_jikes_default
  fi
fi

# Setup Java environment in rpm mode
if $rpm_mode ; then
  if [ -f /usr/share/java-utils/java-functions ] ; then
    . /usr/share/java-utils/java-functions
    set_jvm
    set_javacmd
  fi
fi

# set ANT_HOME and ANT_LIB locations
if [ -z "$ANT_HOME" ] ; then
  ANT_HOME=/usr/share/ant
fi
ANT_LIB="$ANT_HOME/lib"

if [ -z "$JAVA_HOME" ] ; then
  if [ -d /usr/lib/jvm/java ] ; then
    JAVA_HOME=/usr/lib/jvm/java
    export JAVA_HOME
  fi
fi

if [ -z "$JAVACMD" ] ; then
  if [ -n "$JAVA_HOME"  ] ; then
    if [ -x "$JAVA_HOME/jre/bin/java" ] ; then
      JAVACMD="$JAVA_HOME/jre/bin/java"
    else
      JAVACMD="$JAVA_HOME/bin/java"
    fi
  else
    JAVACMD=`which java 2> /dev/null `
    if [ -z "$JAVACMD" ] ; then
        JAVACMD=java
    fi
  fi
fi

if test -z "$JAVACMD"; then
	echo "$0: cannot find the Java VM executable" >&2
	exit 1
fi

if [ ! -x "$JAVACMD" ] ; then
  echo "Error: JAVA_HOME is not defined correctly."
  echo "  We cannot execute $JAVACMD"
  exit 1
fi

# Save the real CLASSPATH that will end up in the -lib option.
# This means that any CLASSPATH modifications made in the configuration
# files included below will end up in the JRE classpath, not in
# the -lib option of ant. Use LIBCLASSPATH for the latter.
LIBCLASSPATH=$CLASSPATH

#################################
# TODO: rewrite the stuff below #
# using build-classpath         #
#################################
LOCALCLASSPATH=
## AddToLocalClasspath
# Adds the list of specified names
# to the LOCALCLASSPATH environment variable.
# Names can be absolute or relative; if a relative name is specified, it is
# prefixed with the system Java library directory.
# Only the names that exist as files or directories will
# be added.
#
AddToLocalClasspath()
{
    local javalibdir=/usr/share/java
    local p

    for p in "$@"; do
	case "$p" in
	    /*) ;;
	    *)  p=$javalibdir/$p ;;
	esac
	if [ ! -e "$p" ]; then
	    continue
	fi
	if [ -n "$LOCALCLASSPATH" ]; then
	    LOCALCLASSPATH=$LOCALCLASSPATH:$p
	else
	    LOCALCLASSPATH=$p
	    export LOCALCLASSPATH
	fi
    done
}

JAVALIBDIR=/usr/share/java

AddToLocalClasspath \
    "$ANT_LIB"/ant.jar \
    "$ANT_LIB"/ant-launcher.jar \
    "$JAVALIBDIR"/jaxp_parser_impl.jar \
    "$JAVALIBDIR"/xml-commons-apis.jar \
    "$JAVALIBDIR"/sun-mail/mailapi.jar \
    "$JAVALIBDIR"/sun-mail/smtp.jar \
    "$JAVALIBDIR"/junit.jar

if [ -n "$JAVA_HOME" ] ; then
  AddToLocalClasspath "$JAVA_HOME"/lib/tools.jar
else
  echo "Error: JAVA_HOME is not defined correctly." >&2
  echo "  We cannot execute java"                   >&2
  exit 1
fi


# Build local classpath using just the launcher in non-rpm mode or
# use the Jpackage helper in rpm mode with basic and default jars
# specified in the ant.conf configuration. Because the launcher is
# used, libraries linked in ANT_HOME/lib will also be included, but this
# is discouraged as it is not java-version safe. A user should
# request optional jars and their dependencies via the OPT_JAR_LIST
# variable
if $rpm_mode && [ -x /usr/bin/build-classpath ] ; then
# hack above; already set
# LOCALCLASSPATH="$(/usr/bin/build-classpath ant ant-launcher jaxp_parser_impl xml-commons-apis)"

  # If no optional jars have been specified then build the default list
  if [ -z "$OPT_JAR_LIST" ] ; then
    for file in /etc/ant.d/*; do
      if [ -f "$file" ]; then
        case "$file" in
        *~) ;;
        *#*) ;;
        *.rpmsave) ;;
        *.rpmnew) ;;
        *)
          for dep in `cat "$file"`; do
            case "$OPT_JAR_LIST" in
            *"$dep"*) ;;
            *) OPT_JAR_LIST="$OPT_JAR_LIST${OPT_JAR_LIST:+ }$dep"
            esac
          done
        esac
      fi
    done
  fi

  # If the user requested to try to add some other jars to the classpath
  if [ -n "$OPT_JAR_LIST" ] ; then
    _OPTCLASSPATH="$(/usr/bin/build-classpath $OPT_JAR_LIST 2> /dev/null)"
    if [ -n "$_OPTCLASSPATH" ] ; then 
      LOCALCLASSPATH="$LOCALCLASSPATH:$_OPTCLASSPATH"
    fi
  fi

  # Explicitly add javac path to classpath, assume JAVA_HOME set
  # properly in rpm mode
  if [ -f "$JAVA_HOME/lib/tools.jar" ] ; then
    LOCALCLASSPATH="$LOCALCLASSPATH:$JAVA_HOME/lib/tools.jar"
  fi
  if [ -f "$JAVA_HOME/lib/classes.zip" ] ; then
    LOCALCLASSPATH="$LOCALCLASSPATH:$JAVA_HOME/lib/classes.zip"
  fi

  # if CLASSPATH_OVERRIDE env var is set, LOCALCLASSPATH will be
  # user CLASSPATH first and ant-found jars after.
  # In that case, the user CLASSPATH will override ant-found jars
  #
  # if CLASSPATH_OVERRIDE is not set, we'll have the normal behaviour
  # with ant-found jars first and user CLASSPATH after
  if [ -n "$CLASSPATH" ] ; then
    # merge local and specified classpath 
    if [ -z "$LOCALCLASSPATH" ] ; then 
      LOCALCLASSPATH="$CLASSPATH"
    elif [ -n "$CLASSPATH_OVERRIDE" ] ; then
      LOCALCLASSPATH="$CLASSPATH:$LOCALCLASSPATH"
    else
      LOCALCLASSPATH="$LOCALCLASSPATH:$CLASSPATH"
    fi

    # remove class path from launcher -cp option
    CLASSPATH=""
  fi
else
  # not using rpm_mode; use launcher to determine classpaths
  if [ -z "$LOCALCLASSPATH" ] ; then
      LOCALCLASSPATH=$ANT_LIB/ant-launcher.jar
  else
      LOCALCLASSPATH=$ANT_LIB/ant-launcher.jar:$LOCALCLASSPATH
  fi
fi

# Allow Jikes support (off by default)
if $usejikes; then
  ANT_OPTS="$ANT_OPTS -Dbuild.compiler=jikes"
  if [ -n "$JIKESPATH" ]; then
    ANT_OPTS="$ANT_OPTS -Djikes.class.path=$JIKESPATH"
  fi
fi

# Show script help if requested
if $show_help ; then
  echo $0 '[script options] [options] [target [target2 [target3] ..]]'
  echo 'Script Options:'
  echo '  --help, --h            print this message and ant help'
  echo '  --noconfig             suppress sourcing of /etc/ant.conf,'
  echo '                         $HOME/.ant/ant.conf, and $HOME/.antrc'
  echo '                         configuration files'
  echo '  --usejikes             enable use of jikes by default, unless'
  echo '                         set explicitly in configuration files'
  echo '  --execdebug            print ant exec line generated by this'
  echo '                         launch script'
  echo '  '
fi

# Execute ant using eval/exec to preserve spaces in paths,
# java options, and ant args
ant_sys_opts=
ant_exec_command="exec \"$JAVACMD\" $ANT_OPTS -classpath \"$LOCALCLASSPATH\" -Dant.home=\"$ANT_HOME\" -Dant.library.dir=\"$ANT_LIB\" $ant_sys_opts org.apache.tools.ant.launch.Launcher $ANT_ARGS -cp \"$CLASSPATH\" $ant_exec_args"
if $ant_exec_debug ; then
    echo $ant_exec_command
fi
#eval $ant_exec_command

# let us use Misha Zabaluev variant below before we will be sure
export CLASSPATH="$LOCALCLASSPATH";
exec "$JAVACMD" -Dant.home="$ANT_HOME" $ANT_OPTS \
	org.apache.tools.ant.launch.Launcher $ANT_ARGS -lib "$LIBCLASSPATH" "$@"