#!/bin/bash
# $Id$
set -e

# VT100 colors
declare -r  BLACK=$'\e[1;30m'
declare -r  DK_GRAY=$'\e[0;30m'

declare -r  RED=$'\e[31m'
declare -r  GREEN=$'\e[32m'
declare -r  YELLOW=$'\e[33m'
declare -r  BLUE=$'\e[34m'
declare -r  MAGENTA=$'\e[35m'
declare -r  CYAN=$'\e[36m'
declare -r  WHITE=$'\e[37m'

declare -r  OFF=$'\e[0m'
declare -r  BOLD=$'\e[1m'
declare -r  REVERSE=$'\e[7m'
declare -r  HIDDEN=$'\e[8m'

declare -r  tab_=$'\t'
declare -r  nl_=$'\n'

declare -r   DD_BORDER="${BOLD}==============================================================================${OFF}"
declare -r   SD_BORDER="${BOLD}------------------------------------------------------------------------------${OFF}"
declare -r STAR_BORDER="${BOLD}******************************************************************************${OFF}"

# bold yellow > <  pair
declare -r R_arrow=$'\e[1;33m>\e[0m'
declare -r L_arrow=$'\e[1;33m<\e[0m'


#>>>>>>>>>>>>>>>ERROR TRAPPING >>>>>>>>>>>>>>>>>>>>
#-----------------------#
simple_error() {        # Basic error trap.... JUST DIE
#-----------------------#
  # If +e then disable text output
  if [[ "$-" =~ e ]]; then
    echo -e "\n${RED}ERROR:${GREEN} basic error trapped!${OFF}\n" >&2
  fi
}

see_ya() {
    echo -e "\n${L_arrow}${BOLD}jhalfs-X${R_arrow} exit${OFF}\n"
}
##### Simple error TRAPS
# ctrl-c   SIGINT
# ctrl-y
# ctrl-z   SIGTSTP
# SIGHUP   1 HANGUP
# SIGINT   2 INTRERRUPT FROM KEYBOARD Ctrl-C
# SIGQUIT  3
# SIGKILL  9 KILL
# SIGTERM 15 TERMINATION
# SIGSTOP 17,18,23 STOP THE PROCESS
#####
set -e
trap see_ya 0
trap simple_error ERR
trap 'echo -e "\n\n${RED}INTERRUPT${OFF} trapped\n" &&  exit 2'  1 2 3 15 17 18 23
#>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

version="
${BOLD}  \"jhalfs-X\"${OFF} builder tool (experimental) \$Rev$
  \$Date$

  Written by George Boudreau and Manuel Canales Esparcia,
  plus several contributions.

  Based on an idea from Jeremy Huntwork

  This set of files are published under the
  ${BOLD}Gnu General Public License, Version 2.${OFF}
"

case $1 in
  -v ) echo "$version" && exit 1 ;;
  run ) : ;;
  * )
    echo "${nl_}${tab_}${BOLD}${RED}This script cannot be called directly: EXITING ${OFF}${nl_}"
    exit 1
    ;;
esac

VERBOSITY=1

[[ $VERBOSITY > 0 ]] && echo -n "Loading config params from <configuration>..."
source configuration
[[ $? > 0 ]] && echo "file:configuration did not load.." && exit 1
[[ $VERBOSITY > 0 ]] && echo "OK"

# These are boolean vars generated from Config.in.
# ISSUE: If a boolean parameter is not set <true> that
# variable is not defined by the menu app. This can
# cause a headache if you are not careful.
#  The following parameters MUST be created and have a
#  default value.
RUNMAKE=${RUNMAKE:-n}
GETPKG=${GETPKG:-n}
GETKERNEL=${GETKERNEL:-n}
COMPARE=${COMPARE:-n}
RUN_FARCE=${RUN_FARCE:-n}
RUN_ICA=${RUN_ICA:-n}
BOMB_TEST=${BOMB_TEST:-n}
STRIP=${STRIP:=n}
REPORT=${REPORT:=n}
VIMLANG=${VIMLANG:-n}
GRSECURITY_HOST=${GRSECURITY_HOST:-n}
CUSTOM_TOOLS=${CUSTOM_TOOLS:-n}
REBUILD_MAKEFILE=${REBUILD_MAKEFILE:-n}
INSTALL_LOG=${INSTALL_LOG:-n}
CLEAN=${CLEAN:=n}
SET_SSP=${SET_SSP:=n}
SET_ASLR=${SET_ASLR:=n}
SET_PAX=${SET_PAX:=n}
SET_HARDENED_TMP=${SET_HARDENED_TMP:=n}
SET_WARNINGS=${SET_WARNINGS:=n}
SET_MISC=${SET_MISC:=n}
SET_BLOWFISH=${SET_BLOWFISH:=n}

# Sanity check on the location of $BUILDDIR / $JHALFSDIR
CWD=$(cd `dirname $0` && pwd)
if [[ $JHALFSDIR == $CWD ]]; then
    echo " The jhalfs source directory conflicts with the jhalfs build directory."
    echo " Please move the source directory or change the build directory."
    exit 2
fi

# Book surces envars
BRANCH_ID=${BRANCH_ID:=development}

case $BRANCH_ID in
  development )
    case $PROGNAME in
      clfs2 ) TREE=branches/clfs-sysroot/BOOK ;;
      clfs3 ) TREE=branches/clfs-embedded/BOOK ;;
           *) TREE=trunk/BOOK ;;
    esac
    LFSVRS=development
    ;;
  *EDIT* )  echo " You forgot to set the branch or stable book version."
            echo " Please rerun make and fix the configuration."
            exit 2 ;;
  branch-* )
    LFSVRS=${BRANCH_ID}
    TREE=branches/${BRANCH_ID#branch-}/BOOK
    ;;
  * )
    case $PROGNAME in
      lfs | hlfs )
        LFSVRS=${BRANCH_ID}
        TREE=tags/${BRANCH_ID}/BOOK
        ;;
      clfs | clfs2 | clfs3)
        LFSVRS=${BRANCH_ID}
        TREE=tags/${BRANCH_ID}
        ;;
    esac
    ;;
esac

# Set the document location...
BOOK=${BOOK:=$PROGNAME-$LFSVRS}

# blfs-tool envars
BLFS_TOOL=${BLFS_TOOL:-n}
DEP_LIBXML=${DEP_LIBXML:-n}
DEP_LIBXSLT=${DEP_LIBXSLT:-n}
DEP_TIDY=${DEP_TIDY:-n}
DEP_UNZIP=${DEP_UNZIP:-n}
DEP_DBXML=${DEP_DBXML:-n}
DEP_DBXSL=${DEP_DBXSL:-n}
DEP_GPM=${DEP_GPM:-n}
DEP_LYNX=${DEP_LYNX:-n}
DEP_SUDO=${DEP_SUDO:-n}
DEP_WGET=${DEP_WGET:-n}
DEP_SVN=${DEP_SVN:-n}
if [[ "${BLFS_TOOL}" = "y" ]] ; then
  BLFS_BRANCH_ID=${BLFS_BRANCH_ID:=development}
  case $BLFS_BRANCH_ID in
    development )  BLFS_TREE=trunk/BOOK ;;
         *EDIT* )  echo " You forgot to set the BLFS branch or stable book version."
                   echo " Please rerun make and fix the configuration."
                   exit 2 ;;
       branch-* )  BLFS_TREE=branches/${BLFS_BRANCH_ID#branch-} ;;
              * )  BLFS_TREE=tags/${BLFS_BRANCH_ID} ;;
  esac
fi

#--- Envars not sourced from configuration
case $PROGNAME in
  clfs* ) declare -r SVN="http://svn.cross-lfs.org/svn/repos" ;;
      * ) declare -r SVN="svn://svn.linuxfromscratch.org" ;;
esac
declare -r LOG=000-masterscript.log
  # Needed to can fetch BLFS book sources when building CLFS
declare -r SVN_2="svn://svn.linuxfromscratch.org"

# Set true internal variables
CODE_DIR=`pwd`
COMMON_DIR="common"
PACKAGE_DIR=$(echo $PROGNAME | tr '[a-z]' '[A-Z]')
MODULE=$PACKAGE_DIR/master.sh

# Qick fix until have the new code ready
XSL=$CODE_DIR/$PACKAGE_DIR/$XSL

[[ $VERBOSITY > 0 ]] && echo -n "Loading common-functions module..."
source $COMMON_DIR/common-functions
[[ $? > 0 ]] && echo " $COMMON_DIR/common-functions did not load.." && exit
[[ $VERBOSITY > 0 ]] && echo "OK"
[[ $VERBOSITY > 0 ]] && echo -n "Loading code module <$MODULE>..."
source $MODULE
[[ $? > 0 ]] && echo "$MODULE did not load.." && exit 2
[[ $VERBOSITY > 0 ]] && echo "OK"
#
[[ $VERBOSITY > 0 ]] && echo "${SD_BORDER}${nl_}"


#*******************************************************************#
[[ $VERBOSITY > 0 ]] && echo -n "Loading function <func_check_version.sh>..."
source $COMMON_DIR/libs/func_check_version.sh
[[ $? > 0 ]] && echo " function module did not load.." && exit 2
[[ $VERBOSITY > 0 ]] && echo "OK"

[[ $VERBOSITY > 0 ]] && echo -n "Loading function <func_validate_configs.sh>..."
source $COMMON_DIR/libs/func_validate_configs.sh
[[ $? > 0 ]] && echo " function module did not load.." && exit 2
[[ $VERBOSITY > 0 ]] && echo "OK"

[[ $VERBOSITY > 0 ]] && echo -n "Loading function <func_custom_pkgs>..."
source $COMMON_DIR/libs/func_custom_pkgs
[[ $? > 0 ]] && echo " function module did not load.." && exit 2
[[ $VERBOSITY > 0 ]] && echo "OK"


[[ $VERBOSITY > 0 ]] && echo "${SD_BORDER}${nl_}"


###################################
###          MAIN               ###
###################################

# Check for build prereequisites.
echo
  check_prerequisites
echo "${SD_BORDER}${nl_}"

validate_config
echo "${SD_BORDER}${nl_}"
echo -n "Are you happy with these settings? yes/no (no): "
read ANSWER
if [ x$ANSWER != "xyes" ] ; then
  echo "${nl_}Rerun make to fix the configuration options.${nl_}"
  exit 1
fi
echo "${nl_}${SD_BORDER}${nl_}"

# Load additional modules or configuration files based on global settings
# compare module
if [[ "$COMPARE" = "y" ]]; then
  [[ $VERBOSITY > 0 ]] && echo -n "Loading compare module..."
  source $COMMON_DIR/libs/func_compare.sh
  [[ $? > 0 ]] && echo "$COMMON_DIR/libs/func_compare.sh did not load.." && exit
  [[ $VERBOSITY > 0 ]] && echo "OK"
fi
#
# optimize module
if [[ "$OPTIMIZE" != "0" ]]; then
  [[ $VERBOSITY > 0 ]] && echo -n "Loading optimization module..."
  source optimize/optimize_functions
  [[ $? > 0 ]] && echo " optimize/optimize_functions did not load.." && exit
  [[ $VERBOSITY > 0 ]] && echo "OK"
  #
  # optimize configurations
  [[ $VERBOSITY > 0 ]] && echo -n "Loading optimization config..."
  source optimize/opt_config
  [[ $? > 0 ]] && echo " optimize/opt_config did not load.." && exit
  [[ $VERBOSITY > 0 ]] && echo "OK"
  # Validate optimize settings, if required
  validate_opt_settings
fi
#

if [[ "$REBUILD_MAKEFILE" = "n" ]] ; then

  # If $BUILDDIR has subdirectories like tools/ or bin/, stop the run
  # and notify the user about that.
  if [ -d $BUILDDIR/tools -o -d $BUILDDIR/bin ] && [ -z $CLEAN ] ; then
    eval "$no_empty_builddir"
  fi

  # If requested, clean the build directory
  clean_builddir

  if [[ ! -d $JHALFSDIR ]]; then
    mkdir -p $JHALFSDIR
  fi

  # Create $BUILDDIR/sources even though it could be created by get_sources()
  if [[ ! -d $BUILDDIR/sources ]]; then
    mkdir -p $BUILDDIR/sources
  fi
  #
  # Create the log directory
  if [[ ! -d $LOGDIR ]]; then
    mkdir $LOGDIR
  fi
  >$LOGDIR/$LOG
  #
  # Copy common helper files
  cp $COMMON_DIR/{makefile-functions,progress_bar.sh} $JHALFSDIR/
  #

  # Create the test-log directory, if needed
  [[ "$TEST" != "0" ]] && [[ ! -d $TESTLOGDIR ]] && install -d -m 1777 $TESTLOGDIR
  #
  # Create the installed-files directory, if needed
  [[ "$INSTALL_LOG" = "y" ]] && [[ ! -d $FILELOGDIR ]] && install -d -m 1777 $FILELOGDIR
  #
  # Prepare report creation, if needed
  if [[ "$REPORT" = "y" ]]; then
    cp $COMMON_DIR/create-sbu_du-report.sh  $JHALFSDIR/
    # After being sure that all looks sane, dump the settings to a file
    # This file will be used to create the REPORT header
    validate_config > $JHALFSDIR/jhalfs.config
  fi
  #
  # Copy optimize files, if needed
  [[ "$OPTIMIZE" != "0" ]] && cp optimize/opt_override $JHALFSDIR/
  #
  # Copy compare files, if needed
  if [[ "$COMPARE" = "y" ]]; then
    mkdir -p $JHALFSDIR/extras
    cp extras/* $JHALFSDIR/extras
  fi
  #

  # Install blfs-tool, if requested.
  if [[ "${BLFS_TOOL}" = "y" ]] ; then
    # Install the files
    [[ ! -d ${BUILDDIR}${BLFS_ROOT} ]] && mkdir -p ${BUILDDIR}${BLFS_ROOT}
    cp -r BLFS/* ${BUILDDIR}${BLFS_ROOT}
    cp -r menu ${BUILDDIR}${BLFS_ROOT}
    cp $COMMON_DIR/progress_bar.sh ${BUILDDIR}${BLFS_ROOT}
    cp README.BLFS ${BUILDDIR}${BLFS_ROOT}
    # Clean-up
    rm -rf ${BUILDDIR}${BLFS_ROOT}/libs/.svn
    rm -rf ${BUILDDIR}${BLFS_ROOT}/menu/.svn
    rm -rf ${BUILDDIR}${BLFS_ROOT}/menu/lxdialog/.svn
    # Set some harcoded envars to their proper values
    sed -i 's,blfs-xml,'$BLFS_XML',' ${BUILDDIR}${BLFS_ROOT}/{update_book.sh,libs/book.xsl}
    sed -i 's,tracking-dir,'$TRACKING_DIR',' ${BUILDDIR}${BLFS_ROOT}/{update_book.sh,gen-makefile.sh}
  fi
  #

  get_book
  echo "${SD_BORDER}${nl_}"

  # Get the BLFS book, if requested.
  if [[ "${BLFS_TOOL}" = "y" ]] ; then
    echo -n "Downloading the BLFS document, $BLFS_BRANCH_ID version... "
    if [[ ! -d ${BUILDDIR}${BLFS_ROOT}/${BLFS_XML} ]] ; then
      mkdir -p ${BUILDDIR}${BLFS_ROOT}/${BLFS_XML}
      svn co $SVN_2/BLFS/$BLFS_TREE ${BUILDDIR}${BLFS_ROOT}/${BLFS_XML} >>$LOGDIR/$LOG 2>&1
    else
      pushd ${BUILDDIR}${BLFS_ROOT}/${BLFS_XML} 1> /dev/null
        svn up >>$LOGDIR/$LOG 2>&1
      popd 1> /dev/null
    fi
    echo -ne "done\n"
    echo "${SD_BORDER}${nl_}"
  fi

fi

# When regenerating the Makefile we need to know also the canonical book version
if [[ "$REBUILD_MAKEFILE" = "y" ]] ; then
  case $PROGNAME in
    clfs | clfs2 | clfs3 )
      VERSION=$(xmllint --noent $JHALFSDIR/$BOOK/prologue/$ARCH/bookinfo.xml 2>/dev/null | grep subtitle | sed -e 's/^.*ion //'  -e 's/<\/.*//') ;;
    *)
      VERSION=$(xmllint --noent $JHALFSDIR/$BOOK/prologue/bookinfo.xml 2>/dev/null | grep subtitle | sed -e 's/^.*ion //'  -e 's/<\/.*//')  ;;
  esac
fi

build_Makefile

echo "${SD_BORDER}${nl_}"

run_make