#!echo "This is not a shell script"
#############################################################################
#
# Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Sun designates this
# particular file as subject to the "Classpath" exception as provided
# by Sun in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
# CA 95054 USA or visit www.sun.com if you need additional information or
# have any questions.
#
#############################################################################
#
# JPRT shell configuration for building.
#
# Input environment variables:
#    ALT_BOOTDIR
#    ALT_SLASH_JAVA
#    ALT_JDK_IMPORT_PATH
#    Windows Only:
#      PATH
#      PROCESSOR_IDENTIFIER
#      ROOTDIR
#
# Output variable settings:
#    make    Full path to GNU make
#
# Output environment variables:
#    PATH
#    Windows Only:
#      ALT_DEVTOOLS_PATH (To avoid the C:/UTILS default)
#
# After JDK6, most settings will be found via ALT_SLASH_JAVA or
#   by way of other system environment variables. If this was JDK5
#   or an older JDK, you might need to export more ALT_* variables.
#
#############################################################################

#############################################################################
# Error
error() # message
{
  echo "ERROR: $1"
  exit 6
}
# Directory must exist
dirMustExist() # dir name
{
  if [ ! -d "$1" ] ; then
    error "Directory for $2 does not exist: $1"
  fi
}
# File must exist
fileMustExist() # dir name
{
  if [ ! -f "$1" ] ; then
    error "File for $2 does not exist: $1"
  fi
}
#############################################################################

# Should be set by JPRT as the 3 basic inputs
bootdir="${ALT_BOOTDIR}"
slashjava="${ALT_SLASH_JAVA}"
jdk_import="${ALT_JDK_IMPORT_PATH}"

# Check input
dirMustExist "${bootdir}"    ALT_BOOTDIR
dirMustExist "${slashjava}"  ALT_SLASH_JAVA
dirMustExist "${jdk_import}" ALT_JDK_IMPORT_PATH

# Uses 'uname -s', but only expect SunOS or Linux, assume Windows otherwise.
osname=`uname -s`
if [ "${osname}" = SunOS ] ; then
   
    # SOLARIS: Sparc or X86
    osarch=`uname -p`
    if [ "${osarch}" = sparc ] ; then
	solaris_arch=sparc
    else
	solaris_arch=i386
    fi

    # Add basic solaris system paths
    path4sdk=/usr/ccs/bin:/usr/ccs/lib:/usr/bin:/bin:/usr/sfw/bin

    # Get the previous JDK to be used to bootstrap the build
    path4sdk=${bootdir}/bin:${path4sdk}

    # Ant
    ANT_HOME=${slashjava}/devtools/share/ant/1.7.0
    export ANT_HOME
    antbindir=${ANT_HOME}/bin
    fileMustExist "${antbindir}/ant" ant
    path4sdk=${antbindir}:${path4sdk}

    # Find GNU make
    make=/usr/sfw/bin/gmake
    if [ ! -f ${make} ] ; then
	make=/opt/sfw/bin/gmake
	if [ ! -f ${make} ] ; then
	    make=${slashjava}/devtools/${solaris_arch}/bin/gnumake
        fi 
    fi
    fileMustExist "${make}" make

    # File creation mask
    umask 002

elif [ "${osname}" = Linux ] ; then
   
    # LINUX: X86, AMD64
    osarch=`uname -m`
    if [ "${osarch}" = i686 ] ; then
	linux_arch=i586
    elif [ "${osarch}" = x86_64 ] ; then
	linux_arch=amd64
    fi

    # Add basic paths
    path4sdk=/usr/bin:/bin:/usr/sbin:/sbin

    # Get the previous JDK to be used to bootstrap the build
    path4sdk=${bootdir}/bin:${path4sdk}

    # Ant
    ANT_HOME=${slashjava}/devtools/share/ant/1.7.0
    export ANT_HOME
    antbindir=${ANT_HOME}/bin
    fileMustExist "${antbindir}/ant" ant
    path4sdk=${antbindir}:${path4sdk}
    
    # Find GNU make
    make=/usr/bin/make
    fileMustExist "${make}" make

    umask 002

else

    # Windows: Differs on CYGWIN vs. MKS.
    #   Also, blanks in pathnames gives GNU make headaches, so anything placed
    #   in any ALT_* variable should be the short windows dosname.
   
    # WINDOWS: Install and use MKS or CYGWIN (should have already been done)
    #   Assumption here is that you are in a shell window via MKS or cygwin.
    #   MKS install should have defined the environment variable ROOTDIR.
    #   We also need to figure out which one we have: X86, AMD64
    if [ "`echo ${PROCESSOR_IDENTIFIER} | fgrep AMD64`" != "" ] ; then
	windows_arch=amd64
    else
	windows_arch=i586
    fi
    
    # We need to determine if we are running a CYGWIN shell or an MKS shell
    #    (if uname isn't available, then it will be unix_toolset=unknown)
    unix_toolset=unknown
    if [ "`uname -a | fgrep Cygwin`" = "" -a -d "${ROOTDIR}" ] ; then
        # We kind of assume ROOTDIR is where MKS is and it's ok
        unix_toolset=MKS
        mkshome=`dosname -s "${ROOTDIR}"`
	# Utility to convert to short pathnames without spaces
	dosname="${mkshome}/mksnt/dosname -s"
        # Most unix utilities are in the mksnt directory of ROOTDIR
        unixcommand_path="${mkshome}/mksnt"
        path4sdk="${unixcommand_path}"
        dirMustExist "${unixcommand_path}" ALT_UNIXCOMMAND_PATH
	devtools_path="${slashjava}/devtools/win32/bin"
	path4sdk="${devtools_path};${path4sdk}"
	# Normally this need not be set, but on Windows it's default is C:/UTILS
        ALT_DEVTOOLS_PATH="${devtools_path}"
	export ALT_DEVTOOLS_PATH
        dirMustExist "${devtools_path}" ALT_DEVTOOLS_PATH
        # Find GNU make
        make="${devtools_path}/gnumake.exe"
        fileMustExist "${make}" make
    elif [ "`uname -a | fgrep Cygwin`" != "" -a -f /bin/cygpath ] ; then
        # For CYGWIN, uname will have "Cygwin" in it, and /bin/cygpath should exist
        unix_toolset=CYGWIN
	# Utility to convert to short pathnames without spaces
	dosname="/usr/bin/cygpath -a -m -s"
        # Most unix utilities are in the /usr/bin
        unixcommand_path="/usr/bin"
        path4sdk="${unixcommand_path}"
        dirMustExist "${unixcommand_path}" ALT_UNIXCOMMAND_PATH
        # Find GNU make
        make="${unixcommand_path}/make.exe"
        fileMustExist "${make}" make
    else
      echo "WARNING: Cannot figure out if this is MKS or CYGWIN"
    fi

    # WINDOWS: Get the previous JDK to be used to bootstrap the build
    path4sdk="${bootdir}/bin;${path4sdk}"

    # Ant
    ANT_HOME=${slashjava}/devtools/share/ant/1.7.0
    export ANT_HOME
    antbindir=${ANT_HOME}/bin
    fileMustExist "${antbindir}/ant" ant
    path4sdk="${antbindir};${path4sdk}"

    # Turn all \\ into /, remove duplicates and trailing /
    slash_path="`echo ${path4sdk} | sed -e 's@\\\\@/@g' -e 's@//@/@g' -e 's@/$@@' -e 's@/;@;@g'`"
    
    # For windows, it's hard to know where the system is, so we just add this
    #    to PATH.
    path4sdk="${slash_path};${PATH}"
    
    # Convert path4sdk to cygwin style
    if [ "${unix_toolset}" = CYGWIN ] ; then
	path4sdk="`/usr/bin/cygpath -p ${path4sdk}`"
    fi

fi

# Export PATH setting
PATH="${path4sdk}"
export PATH

# Things we need to unset
unset LD_LIBRARY_PATH
unset LD_LIBRARY_PATH_32
unset LD_LIBRARY_PATH_64
unset JAVA_HOME