path: root/trunk/src/mkbuild

#!/bin/bash
#
# mkbuild: SlackBuild scripts maker
# feedback: rudsonaalves at yahoo.com.br | gpl
#
#  mkbuild is free software; you can redistribute it and/or modify it under the
#  terms of the GNU General Public License as published by the Free Software
#  Foundation; either version 2 of the License, or any later version.
#
#  mkbuild 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 for more details.
#
#  You should have received a copy of the GNU General Public License along with
#  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#
# Based in model generic.SlackBuild of Luiz
# Version $Rev$ - $Author$

PROG_VERSION="1.2.8"
PROG_NAME="`basename $0`"

#--------------------------------------------------------------------
# Functions
#--------------------------------------------------------------------
function mkbuild_use()

{
  # mkbuild help function
  echo -e "${red}NAME${normal}
        mkbuild - create SlackBuild script from ${green}.mkbuild${normal} input file

${red}SYNOPSIS
        mkbuild${normal} [${green}OPTIONS${normal}] [${green}mkbuild_file${normal}]

${red}DESCRIPTION${normal}
        [${green}mkbuild_file${normal}] input file with build rules and variables

        Input ${green}OPTIONS${normal}:
            ${red}-a${normal}, ${red}--author${normal} ${green}<author_name>${normal}
                author name
            ${red}-ai${normal}, ${red}--author_initials${normal} ${green}<initials>${normal}
                author signature
            ${red}-bn${normal}, ${red}--build-number${normal}
                change build number
            ${red}-cs${normal}, ${red}--const_string${normal} ${green}<string>${normal}
                construction string to source name
            ${red}-j${normal}, ${red}--jobs${normal} ${green}<jobs_number>${normal}
                Number of jobs to run simultaneously
            ${red}-md${normal}, ${red}--model${normal} ${green}<SlackBuild_model>${normal}
                SlackBuild model file
            ${red}-npss${normal}, ${red}--nps-strip${normal}
                Number of prefix slashes to strip
            ${red}-pf${normal}, ${red}--patch-files${normal}
                List of patch files
            ${red}-pn${normal}, ${red}--pkg_name${normal} ${green}<package_name>${normal}
                package name
            ${red}--prefix${normal} <install_dir>${normal}
                Prefix install directory
            ${red}-pv${normal}, ${red}--pkg_version${normal} ${green}<version>${normal}
                package version
            ${red}-sn${normal}, ${red}--src_name${normal} ${green}<source_name>${normal}
                source name
            ${red}-u${normal}, ${red}--url${normal} ${green}<url_address>${normal}
                url address to source

        Program options:
        ${red}-d${normal}, ${red}--debug${normal}
            enable debug mode
        ${red}-ss${normal}, ${red}--submit-slackbuild${normal}
            submit SlackBuilds in local svn SlackBuild tree
        ${red}-sm${normal}, ${red}--submit-mkbuild${normal}
            submit .mkbuild in local svn mkbuild tree
        ${red}-sa${normal}, ${red}--submit-all${normal}
            submit SlackBuild and .mkbuild files in local svn tree
        ${red}-cs${normal}, ${red}--commit-slackbuild${normal}
            commit SlackBuilds in svn SlackBuild tree
        ${red}-cm${normal}, ${red}--commit-mkbuild${normal}
            commit .mkbuild in svn mkbuild tree
        ${red}-ca${normal}, ${red}--commit-all${normal}
            commit SlackBuild and .mkbuild files in svn tree
        ${red}-h${normal}, ${red}--help${normal}
            this help mesage
        ${red}-n${normal}, ${red}--new${normal} ${green}<mkbuild_name>${normal}
            start a new mkbuild configure file
        ${red}-s${normal}, ${red}--search${normal} ${green}<mkbuild_name>${normal}
            search for a ${green}<mkbuild_name>${normal} file
        ${red}--sync${normal}
            synchronize mkbuilds repository
        ${red}-v${normal}, ${red}--version${normal}
            program version
        ${red}-V${normal}, ${red}--verbose${normal}
            print debug information

${red}EXAMPLES${normal}
        ${red}mkbuild -sa pyrex.mkbuild${normal}
            build pyrex.SlackBuild and submit .mkbuild and .SlackBuild in
            Slack.Sarava local tree.
        ${red}mkbuild -a \"Jose Araujo\" -ai \"ja\" -n pyrex${normal}
            make a basic pyrex.mkbuild with author name \"Jose Araujo\" and
            author signature \"ja\".
        ${red}mkbuild --prefix /usr/local pyrex.mkbuild${normal}
            build pyrex.SlackBuild with prefix /usr/local and pyrex.mkbuild
            variables and options definitions.

${red}AUTHOR${normal}
        Written by ${blue}Rudson R. Alves${normal}

${red}AVAILABILITY${normal}
        by svn: ${yellow}svn checkout svn://slack.sarava.org/simplepkg${normal}
        this mkbuild is found in branches/0.6/

${red}REPORTING BUGS${normal}
        Report bugs to <${blue}rudsonaalves[at]rra.etc.br${normal}>

${red}COPYRIGHT${normal}
        Copyright � 2006 Free Software Foundation, Inc.
        This is free software. You may redistribute copies of it under the
        terms of the GNU General Public License
        <${yellow}http://www.gnu.org/licenses/gpl.html${normal}>. There is NO WARRANTY,
        to the extent permitted by law." | more
}

function set_parameters {

  # Get and set mkbuild variables with parameters input
  # Use: set_parameters $@
  #           where $@ are the parameters input
  #
  # Parameters analyze
  ACTION="build"

  while [ "$1" ]; do
    case $1 in
      '-bn'|'--build-number')
        # Build Number
        BUILD_NUMBER=$2
        is_number $BUILD_NUMBER || handle_error "$ERROR_NOT_NUMBER" "--build-number"
        shift
      ;;
      '-ss'|'--submit-slackbuild')
        # Submit SlackBuild file
        SUBMIT_SLACKBUILD=$on
      ;;
      '-sm'|'--submit-mkbuild')
        # Submit mkbuild file
        SUBMIT_MKBUILD=$on
      ;;
      '-sa'|'--submit-all')
        # Submit SlackBuild and mkbuild file
        SUBMIT_SLACKBUILD=$on
        SUBMIT_MKBUILD=$on
      ;;
      '-cs'|'--commit-slackbuild')
        # Commit SlackBuild file
        shift
        commit_changes $SLACKBUILDS_DIR $*
        exit 0
      ;;
      '-cm'|'--commit-mkbuild')
        # commit mkbuild file
        shift
        commit_changes $MKBUILDS_DIR $*
        exit 0
      ;;
      '-ca'|'--commit-all')
        # Commit SlackBuild and mkbuild file
        shift
        commit_changes $SLACKBUILDS_DIR $*
        commit_changes $MKBUILDS_DIR $*
        exit 0
      ;;
      '-n'|'--new')
        # New mkbuild configure file
        MKBUILD_NAME="${2//.mkbuild}.mkbuild"
        [ ${MKBUILD_NAME:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR "--new <mkbuild_name>"
        ACTION="new"
        shift
      ;;
      '-s'|'--search')
        # Search for a mkbuild file
        MKBUILD_NAME="${2//.mkbuild}.mkbuild"
        [ ${MKBUILD_NAME:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR "--search <mkbuild_name>"
        ACTION='search'
      ;;
      '-d'|'--debug')
        # Debug mode
        set -x
      ;;
      '-h'|'--help' )
        # Show help mesage
        mkbuild_use && exit 0
      ;;
      '--sync' )
        # Synchronize mkbuilds repository
        sync_repo $MKBUILDS_DIR $MKBUILDS_SVN
        cd $WORK
      ;;
      '-v'|'--version')
        # Show program version
        eecho $normal "\n$PROG_NAME version $PROG_VERSION\n"
      ;;
      '-V' | '--verbose')
        # Enable verbose mode
        VERBOSE=1
      ;;
      '-a'|'--author')
        # Enter with author name
        AUTHOR=$2
        [ ${AUTHOR:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR AUTHOR
        shift
      ;;
      '-ai'|'--author_initials')
       # Enter with author name
       AUTHOR_INITIALS=$2
       [ ${AUTHOR_INITIALS:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR AUTHOR_INITIALS
       shift
      ;;
      '-cs'|'--const_string')
        # Enter with construction source name string
        CONST_STRING=$2
        [ ${CONST_STRING:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR CONST_STRING
        shift
      ;;
      '-md'|'--model')
        # Enter with SlackBuild model
        MODEL=$2
        [ ${MODEL:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR MODEL
        shift
      ;;
      '-j'|'--jobs')
        # Enter with SlackBuild model
        NUMJOBS=$2
        [ ${NUMJOBS:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR NUMJOBS
        ! is_number $NUMJOBS &&  handle_error $ERROR_NOT_NUMBER NUMJOBS
        NUMJOBS="-j$NUMJOBS"
        shift
      ;;
      '--prefix')
        # Enter with SlackBuild model
        PREFIX=$2
        [ ${PREFIX:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR PREFIX
        shift
      ;;
      '-pn'|'--pkg_name')
        # Enter with package name
        PKG_NAME=$2
        [ ${PKG_NAME:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR PKG_NAME
        shift
      ;;
      '-pv'|'pkg_version')
        # Enter with package version
        VERSION=$2
        [ ${VERSION:0:1} = "-" ] && handle_error $ERROR_MKBUILD_INPUT_PAR VERSION
        shift
      ;;
      '-sn'|'--src_name')
        # Enter with source name
        SRC_NAME=$2
        [ ${SRC_NAME:0:1} = '-' ] && handle_error $ERROR_MKBUILD_INPUT_PAR SRC_NAME
        shift
      ;;
      '-u'|'--url')
        # Enter with url address
        URL=$2
        [ ${URL:0:1} = '-' ] && handle_error $ERROR_MKBUILD_INPUT_PAR URL
        shift
      ;;
      '-pf'|'--patch-files')
        # Path files list
        PATCH_FILES=$2
        [ ${PATCH_FILES:0:1} = '-' ] && handle_error $ERROR_MKBUILD_INPUT_PAR PATCH_FILES
        shift
      ;;
      '-npss'|'--nps-strip')
        # Number of prefix slashes to strip
        NPS_STRIP=$2
        [ ${NPS_STRIP:0:1} = '-' ] && handle_error $ERROR_MKBUILD_INPUT_PAR NPS_STRIP
        shift
      ;;
      *)
        # mkbuild input file
        MKBUILD_NAME="${1//.mkbuild}.mkbuild"
      ;;
    esac
    shift
  done

  [ ! -e "$MKBUILD_NAME" -a "$ACTION" == "build" ] && ACTION='new'

}

function get_variable {

  # Get variable value from mkbuild file (MKBUILD_NAME)
  [ $# -ne 1 ] && handle_error $ERROR_PAR_NUMBER
  [ -z $MKBUILD_NAME ] && echo "Warning: no [mkbuild_file]." && return 0

  sed -n '1,/^#>>/ p' $MKBUILD_NAME | grep "^\[\[${1}\]\]" | cut -f2- -d= | sed -e 's/^"//' -e 's/"$//'

}

function edit_file {

  # Edit file  $3, by change string [[$1]] to $2
  [ $# -ne 3 ] && handle_error $ERROR_PAR_NUMBER

  eval "sed -i 's�\[\[$1\]\]�$2�g' $3"

}

function edit_file_full {

  # Edit file  $3, by change string $1 to $2
  [ $# -ne 3 ] && handle_error $ERROR_PAR_NUMBER

  eval "sed -i 's�$1�$2�' $3"

}

function start_build  {

  # Build initial sections
  [ $# -ne 1 ] && handle_error $ERROR_PAR_NUMBER

  edit_file "SLACKBUILD AUTHOR" "$AUTHOR" $1
  edit_file "SLACKBUILD AUTHOR INITIALS" "$AUTHOR_INITIALS" $1
  edit_file "SOURCE NAME" "$SRC_NAME" $1
  edit_file "PROGRAM NAME" "$PKG_NAME" $1
  edit_file "PACKAGE NAME" "$PKG_NAME" $1
  edit_file "DECOMPRESSOR" "$DECOMPRESSOR" $1
  edit_file "DECOMPRESSOR TEST FLAG" "$DECOMPRESSOR_TEST_FLAG" $1
  edit_file "PROGRAM URL" "$URL" $1
  if [ "$ARCH" == "noarch" ]; then
    sed -i 's/^ARCH=.*$/ARCH="noarch"/' $1
  else
    edit_file "ARCH" "$ARCH" $1
  fi
  edit_file "NUMBER OF JOBS" "$NUMJOBS" $1
  edit_file "VERSION" "$VERSION" $1
  edit_file "SOURCE NAME CONSTRUCTION STRING" "$CONST_STRING" $1
  edit_file "EXTENSION" "$EXTENSION" $1
  edit_file "DOWNLOAD FOLDER URL" "$URL_BASE" $1
  edit_file "OTHER CONFIGURE ARGS" "$OPTIONS" $1
  edit_file "DOCUMENTATION FILES" "$DOCFILES" $1
  edit_file "PREFIX" "$PREFIX" $1
  edit_file "UNPACKER" "$UNPACKER" $1
  edit_file "UNPACKER FLAGS" "$UNPACKER_FLAGS" $1
  edit_file "BUILD NUMBER" "$BUILD_NUMBER" $1
  edit_file "PATCH FILES" "$PATCH_FILES" $1
  edit_file "NUMBER OF PREFIX SLASHES TO STRIP" "$NPS_STRIP" $1

  edit_file_full "\$EXTENSION" "$EXTENSION" $1

}

function clear_files {

  # Remove temporary files
  [ ! -z $AUX_TMP ] && rm $AUX_TMP 2>/dev/null
  [ ! -z $SLACKBUILD_TEMP ] && rm $SLACKBUILD_TEMP 2>/dev/null
  [ ! -z $DIFF_FILE ] && rm $DIFF_FILE 2>/dev/null
  chmod 755 *.SlackBuild 2>/dev/null

}

function set_status {

  # Set status section
  # $1 - Section
  # $2 - Status
  # $3 - file
  [ $# -ne 3 ] && handle_error $ERROR_PAR_NUMBER
  if [ "`get_status $1 $3`" != "all" ]; then
    [ $VERBOSE -eq $on ] && echo "Section $1 $2"
    eval "sed -i 's/^<$1>.*$/<$1> $2/' $3"
  else
    echo "Warning: Section $1 have status all. Can't change!"
  fi

}

function get_status {

  # Get status from section
  # $1 - Section
  # $2 - file
  [ $# -ne 2 ] && handle_error $ERROR_PAR_NUMBER
  eval "sed '/^<$1>.*$/! d' $2"

}

function get_mkbuild_status {

    # Get status from mkbuild file
    # $1 section
    eval "sed '/^#>>/,/<</ ! d; /^#/ d; /: *$1$/! d; s/^ *\(.*\):.*$/\1/' $MKBUILD_NAME"
}

function activate_sections {

  # Enable and desable sections
  ACTIONS_LIST=`sed '/^#>>/,/<</ ! d; /^#/ d ' $MKBUILD_NAME | tr -d ' '`
  for i in $ACTIONS_LIST; do
    STATUS=`echo $i | cut -f1 -d:`
    SECTION=`echo $i | cut -f2 -d:`
    set_status $SECTION $STATUS $SLACKBUILD_TEMP
  done

  #if [ $SVN_MOD -eq $on -o $URL == "" ]; then
  #  LIST_OFF="download_source md5sum_download_and_check_0 md5sum_download_and_check_1 gpg_signature_check untar_source"
  #  [ $VERBOSE -eq $on ] && echo -e "\nSubversion or empty URL changes:"
  #  for i in $LIST_OFF; do
  #    set_status $i "off" $SLACKBUILD_TEMP
  #  done
  #  [ $SVN_MOD -eq $on ] && set_status svn_source "on" $SLACKBUILD_TEMP
  #fi

}

function build_slackbuild {

  # Clean SlackBuild
  # Make SlackBuild backup
  [ -e $SLACKBUILD ] && mv $SLACKBUILD $SLACKBUILD.old
  # Remove off sections
  sed -i '/^<[a-z].*> off/, /^<\/[a-z].*>$/ d' $SLACKBUILD_TEMP
  # Remove sections names
  sed -i '/^<.*$/ d' $SLACKBUILD_TEMP
  # Remove clear lines
  # isto pode ser feito com "cat -s SLACKBUILD_TEMP ..."
  sed -i ':i ; $! N; s/\n/�/ ; t i ; s/�\{3,\}/��/g ; s/�/\n/g' $SLACKBUILD_TEMP
  # Remove from frist line do #!/... line
  sed '1,/^#\!/ {/^#\!/ b; d }' $SLACKBUILD_TEMP > $SLACKBUILD

}

function section_edit {

  # Edits a section substituting its content
  [ -z $MKBUILD_NAME ] && return 0

  SECTION_LIST=`grep '^#>[a-z]' $MKBUILD_NAME | cut -c3-`

  # Check for sections change
  [ -z "$SECTION_LIST" ] && return 0

  # Change sections
  for i in $SECTION_LIST; do
    [ $VERBOSE -eq $on ] && echo "Change section $i"
    if [ "$i" = "slackdesc" ]; then
      # Special slackdesc section
      slackdesc_edit > $AUX_TMP
      mv $AUX_TMP $SLACKBUILD_TEMP
    else
      # Others sections
      section_change $i
    fi
  done

}

function slackdesc_edit {

  # Edit slackdesc section
  sed -n '1,/|-----/ { /<slackdesc>/ b; /|-----/ b; p; }' $SLACKBUILD_TEMP
  echo -n $PKG_NAME | tr [a-z+\-] " "
  echo -n "|-----handy-ruler"
  let N=18+${#PKG_NAME}
  for i in `seq $N $SLACKDESC_LEN`; do
    echo -n "-"
  done
  echo -en "|\n"

  sed -n '/#>slackdesc/,/#<slackdesc/ { /^#/ b; p }' $MKBUILD_NAME
  sed '1, /\[\[SLACK-DESC\]\]/ d' $SLACKBUILD_TEMP

}

function section_change {

  # Change section lines
  [ $# -ne 1 ] && handle_error $ERROR_PAR_NUMBER

  # Copy first half
  eval "sed '1,/^<$1>/! d' $SLACKBUILD_TEMP > $AUX_TMP"
  # Paste new section
  eval "sed -n '/#>$1/,/#<$1/ { /^#>/ b; /^#</ b; p }' $MKBUILD_NAME >> $AUX_TMP"
  # Copy second halt
  eval "sed '/^<\/$1>/,$ ! d' $SLACKBUILD_TEMP >> $AUX_TMP"

  mv $AUX_TMP $SLACKBUILD_TEMP

}

function make_slack_required {

  # Build slack-required file
  [ -e slack-required ] && mv slack-required slack-required.old
  [ -z "$SLACK_REQUIRED" ] && return 0

  echo -e "# Dependency list to $SRC_NAME\n#\n# dependency [condition] [version]]" > slack-required

  echo $SLACK_REQUIRED | sed 's/:/\n/g' | while read i; do
    REQ=`echo $i | awk '{ print $1 }'`
    CON=`echo $i | awk '{ print $2 }'`
    VER=`echo $i | awk '{ print $3 }'`
    echo -e "$REQ\t\t$CON\t\t$VER" >> slack-required
  done

}

function change_others_parameters {

  # Change others parameters started by '[[' in .mkbuild file
  sed '1,/#>>/ ! d' $MKBUILD_NAME | grep -v '^#' | grep '^\[\[[A-Za-z]' | \
  while read i; do
    CHANGE="`echo $i | sed 's/\[\[\(.*\)\]\]=\"\(.*\)\"/\1/'`"
    VALUE="`echo $i | sed 's/\[\[\(.*\)\]\]=\"\(.*\)\"/\2/'`"
    edit_file "$CHANGE" "$VALUE" $SLACKBUILD
  done

}

function get_slackbuild_path {

  # Search for SlackBuild Path in order:
  #   - command line parameter;
  #   - mkbuild parameters file;
  #   - SlackBuild tree;
  #   - Gentool-portage internet tree;
  #   - default path (others/unclassified/$PKG_NAME).

  # Start AUX_PATH with command line parameter
  AUX_PATH="$SLACKBUILD_PATH"

  # Get in mkbuild
  [ -z $AUX_PATH ] && AUX_PATH=`validate_parameter "$SLACKBUILD_PATH" "SLACKBUILD PATH" ""`

  # SlackBuild path in SlackBuild tree
  [ -z $AUX_PATH ] && AUX_PATH=`find $SLACKBUILDS_DIR -name $SLACKBUILD | xargs dirname` 2>/dev/null

  # SlackBuild path default
  [ -z $AUX_PATH ] && AUX_PATH="others/unclassified/$PKG_NAME"

  # Down case SlackBuild path
  echo $AUX_PATH | tr [A-Z] [a-z]
}

function apply_mkpatch {

  # Apply mkpatch if exist
  sed -n '/#p>/,/#p</ { /^#/ b; p }' $MKBUILD_NAME > $DIFF_FILE
  if [ -s $DIFF_FILE ]; then
    mkpatch $DIFF_FILE $SLACKBUILD_TEMP > $AUX_TMP || handle_error $?
    [ ! -s $AUX_TMP ] && handle_error 1
    cp $AUX_TMP $SLACKBUILD_TEMP
    [ $VERBOSE -eq $on ] && ( echo -e "\nApply mkpath ..."; cat $DIFF_FILE )
  fi

}

# ----------------------------------------------------------------
# ------------------- svn functions ------------------------------
function submit_slackbuild {

  # Submit SlackBuild in local Slack.Sarava tree
  #if [ $UID -ne 0 ]; then
  #  echo "Only root can submit SlackBuilds..."
  #  return 1
  #fi
  echo -e "\nSubmiting $SLACKBUILD"

  # check SlackBuilds directory
  [ ! -e $SLACKBUILDS_DIR ] && createpkg --sync

  # change to SlackBuilds directory
  cd $SLACKBUILDS_DIR/

  # Add SlackBuild scripts
  # check path
  [ ! -e $SLACKBUILD_PATH ] && svn_mkdir $SLACKBUILD_PATH
  # add SlackBuild
  svn_copy $WORK/$SLACKBUILD $SLACKBUILD_PATH

  # check slack-required
  # add slack-required
  [ -e $WORK/slack-required ] && svn_copy $WORK/slack-required $SLACKBUILD_PATH

  for i in `ls $WORK | egrep -v '(SlackBuild|old|slack-required|.mkbuild$|.tmp$)\*{0,1}$'`; do
    svn_copy $WORK/$i $SLACKBUILD_PATH
  done

  cd $WORK

}

function submit_mkbuild {

  # Submit mkbuild in local mkbuild Slack.Sarava tree
  #if [ $UID -ne 0 ]; then
  #  echo "Only root can submit mkbuild..."
  #  return 1
  #fi
  echo -e "\nSubmiting $MKBUILD_NAME"

  # check mkbuild directory
  [ ! -d $MKBUILDS_DIR ] && build_repo $MKBUILDS_DIR $MKBUILDS_SVN

  # Get mkbuild path in parameter file
  MKBUILD_PATH=$SLACKBUILD_PATH

  # change to mkbuilds directory
  cd $MKBUILDS_DIR/

  # Add mkbuild scripts
  # check path
  [ ! -e $MKBUILD_PATH ] && svn_mkdir $MKBUILD_PATH
  # add mkbuild
  svn_copy $WORK/$MKBUILD_NAME $MKBUILD_PATH

  for i in `ls $WORK | egrep -v '(SlackBuild|old|slack-required|.mkbuild$|.tmp$)\*{0,1}$'`; do
    svn_copy $WORK/$i $MKBUILD_PATH
  done
  cd $WORK

}

# ----------------------------------------------------------------
# ------------------- general functions --------------------------

function validate_parameter {

  # Validate parameter in .mkbuild file
  [ $# -ne 3 ] && handle_error $ERROR_PAR_NUMBER

  if [ ! -z "$1" ]; then
    echo "$1"
  else
    local STRING="`get_variable "$2"`"
    if [ ! -z "$STRING" ]; then
      echo "$STRING"
    else
      echo "$3"
    fi
  fi

}

function decompress_find {

  # Find decompressor program and test flag
  case $EXTENSION in
    'gz'|'GZ')
      DECOMPRESSOR="gunzip"
      DECOMPRESSOR_TEST_FLAG="-t"
    ;;
    'bz2'|'BZ2')
      DECOMPRESSOR="bunzip2"
      DECOMPRESSOR_TEST_FLAG="-t"
    ;;
    'zip'|'ZIP')
      DECOMPRESSOR="unzip"
      DECOMPRESSOR_TEST_FLAG="-t"
    ;;
    *)
    handle_error $ERROR_MKBUILD_CONSTRUCTION "DECOMPRESSOR"
    ;;
  esac

}

function load_parameters {

  # Load Createpkg parameters
  SLACKBUILDS_DIR="`eval_parameter SLACKBUILDS_DIR /var/simplepkg/slackbuilds`"
  [ ! -d $SLACKBUILDS_DIR ] && mkdir -p $SLACKBUILDS_DIR

  MKBUILDS_DIR="`eval_parameter MKBUILDS_DIR /var/simplepkg/mkbuilds`"
  [ ! -d $SLACKBUILDS_DIR ] && mkdir -p $SLACKBUILDS_DIR

  SLACKBUILDS_SVN="`eval_parameter SLACKBUILDS_DIR http://slack.sarava.org/slackbuilds`"
  MKBUILDS_SVN="`eval_parameter MKBUILDS_SVN http://slack.sarava.org/mkbuilds`"
  SVN_USER="`eval_parameter MKBUILDS_SVN_USER`"
  SVN_GROUP="`eval_parameter MKBUILDS_SVN_GROUP`"

  COLOR_MODE="`eval_parameter COLOR_MODE none`"

}
# ----------------------------------------------------------------

#=============================
#        Main Program
#=============================
#-----------------------------
# Common functions
COMMON_SH="/usr/libexec/simplepkg/common.sh"
SIMPLEPKG_CONF="/etc/simplepkg/simplepkg.conf"
BASENAME="`basename $0`"
WORK=`pwd`
LANG=en_US
EXIT_CODE=0

if [ -f "$COMMON_SH" ]; then
  source $COMMON_SH
else
  echo $error "$BASENAME: file $COMMON_SH not found. Check your $BASENAME installation"
fi

# Start constants
set_constants

# Set submit off
SUBMIT_SLACKBUILD=$off
SUBMIT_MKBUILD=$off
# Set verbose off
VERBOSE=$off
SVN_MOD=$off

# Load /etc/simplepkg/simplepkg.conf parameters
load_parameters

# Select color mode: gray, color or none (*)
color_select $COLOR_MODE

# Auxiliar file
AUX_TMP=/tmp/mkbuild_tmp.$RANDOM
DIFF_FILE=/tmp/mkbuild.diff.$RANDOM
# Derectory to SlackBuild models
MODEL_DIR=${MODEL_DIR:="/etc/simplepkg/defaults/mkbuild"}
# SlackDesk line length
SLACKDESC_LEN=78

# Load error codes
error_codes

[ $# -eq 0 ] && mkbuild_use && exit 1

# Configure input parameters
set_parameters "$@"

[ $VERBOSE -eq $on ] && echo -e "$PROG_NAME version $PROG_VERSION\n"
if [ ! -z $MKBUILD_NAME ]; then
  case $ACTION in
    'new')
      # Create a new .mkbuild parameters-file
      cp $MODEL_DIR/model.mkbuild $MKBUILD_NAME
      # Package Author
      if [ ! -z "$AUTHOR" ]; then
        edit_file "YOUR NAME" "${AUTHOR}" $MKBUILD_NAME
        # Package Author Signature
        if [ -z "$AUTHOR_INITIALS" ]; then
          AUTHOR_INITIALS=`echo $AUTHOR | tr '[A-Z]' '[a-z]' | sed 's/ /\n/g' |  sed 's/^\([a-z]\).*/\1/' | sed ':i ; $! N ; s/\n// ; t i'`
        fi
        edit_file "YOUR SIGNATURE" "${AUTHOR_INITIALS}" $MKBUILD_NAME
      fi
      # Change Default SourceForge URL
      [ -z "$URL" ] && URL="http://downloads.sourceforge.net/[[PKG NAME]]/"
      edit_file "DEFAULT URL" "${URL}" $MKBUILD_NAME
      # Change Package Name
      edit_file "PKG NAME" "${MKBUILD_NAME//.mkbuild}" $MKBUILD_NAME

      # Print .mkbuild name
      echo "$MKBUILD_NAME"
    ;;
    'build')
      # Get values
      # Author name
      AUTHOR=${AUTHOR:="`get_variable "SLACKBUILD AUTHOR"`"}
      [ -z "$AUTHOR" ] && handle_error $ERROR_MKBUILD_CONSTRUCTION "SLACKBUILD AUTHOR"
      [ $VERBOSE -eq $on ] && echo "[[SLACKBUILD AUTHOR]]=\"$AUTHOR\""

      # Author initials
      STR_MOUNT=`echo $AUTHOR | sed 's/ /\n/g' | sed 's/^\([A-Z]\).*/\1/' | sed ':i; $!N;  s/\n//; ti' | tr [A-Z] [a-z]`
      AUTHOR_INITIALS="`validate_parameter "$AUTHOR_INITIALS" "SLACKBUILD AUTHOR INITIALS" "$STR_MOUNT"`" || handle_error $ERROR_MKBUILD_CONSTRUCTION "SLACKBUILD AUTHOR INITIALS"
      [ $VERBOSE -eq $on ] && echo "[[SLACKBUILD AUTHOR INITIALS]]=\"$AUTHOR_INITIALS\""

      # URL program
      URL=`validate_parameter "$URL" "DOWNLOAD FOLDER URL" ""` || handle_error $ERROR_MKBUILD_CONSTRUCTION "URL"
      [ $VERBOSE -eq $on ] && echo "[[URL]]=\"$URL\""

      AUX=`get_mkbuild_status "svn_source"`
      SVN_MOD=`convert_boolean "$AUX"`

      AUX=`get_mkbuild_status "git_source"`
      GIT_MOD=`convert_boolean "$AUX"`

      # Check sections
      if [ $SVN_MOD -eq $on -o $GIT_MOD -eq $on -o $URL == "" ]; then
        LIST_OFF="download_source md5sum_download_and_check_0 md5sum_download_and_check_1 gpg_signature_check untar_source"
        [ $VERBOSE -eq $on ] && echo -e "\nCheck subversion or empty URL"
        for i in $LIST_OFF; do
          if [ `get_mkbuild_status "$i"` != "off" ]; then
            handle_error $ERROR_MKBUILD_VCS
          else
            [ $VERBOSE -eq $on ] && echo -e "off: $i is ok."
          fi
        done
      fi

      STR_MOUNT="`echo $URL | sed 's/.*\.\([a-z0-9]\+\)$/\1/'`"
      if [ $STR_MOUNT = "gz" -o $STR_MOUNT = "tgz" -o $STR_MOUNT = "bz2" -o $STR_MOUNT = "zip" ]; then
        SOURCE_NAME=`basename $URL`
        URL_BASE=`dirname $URL`
      else
        URL_BASE=$URL
      fi
      [ $VERBOSE -eq $on ] && echo "[[DOWNLOAD FOLDER URL]]=\"$URL_BASE\""

      if [ $SVN_MOD -eq $off ] && [ $GIT_MOD -eq $off ]; then
        # Extension
        EXTENSION=`validate_parameter "$EXTENSION" "EXTENSION" "$STR_MOUNT"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "EXTENSION"
         [ $VERBOSE -eq $on ] && echo "[[EXTENSION]]=\"$EXTENSION\""

          # Unpacker
        UNPACKER=`validate_parameter "$UNPACKER" "UNPACKER" "tar"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "UNPACKER"
          [ $VERBOSE -eq $on ] && echo "[[UNPACKER]]=\"$UNPACKER\""

          # Unpacker flags
        [ "$UNPACKER" == "tar" ] && STR_MOUNT="--no-same-owner --no-same-permissions -xvf" || STR_MOUNT=""
        UNPACKER_FLAGS=`validate_parameter "$UNPACKER_FLAGS" "UNPACKER FLAGS" "$STR_MOUNT"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "UNPACKER FLAGS"
        [ $VERBOSE -eq $on ] && echo "[[UNPACKER_FLAGS]]=\"$UNPACKER_FLAGS\""

        # Decompressor program and test flag
        DECOMPRESSOR=`validate_parameter "$DECOMPRESSOR" "DECOMPRESSOR" ""`
        [ -z $DECOMPRESSOR ] && decompress_find
        [ $VERBOSE -eq $on ] && echo "[[DECOMPRESSOR]]=\"$DECOMPRESSOR\""

        DECOMPRESSOR_TEST_FLAG=`validate_parameter "$DECOMPRESSOR_TEST_FLAG" "DECOMPRESSOR TEST FLAG" ""` || handle_error $ERROR_MKBUILD_CONSTRUCTION "DECOMPRESSOR TEST FLAG"
        [ $VERBOSE -eq $on ] && echo "[[DECOMPRESSOR TEST FLAG]]=\"$DECOMPRESSOR_TEST_FLAG\""
      fi

      BUILD_NUMBER=`validate_parameter "$BUILD_NUMBER" "BUILD NUMBER" "1"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "BUILD NUMBER"
      # Build archteture

      ARCH=`validate_parameter "$ARCH" "ARCH" "i486"`
      [ $VERBOSE -eq $on ] && echo "[[ARCH]]=\"$ARCH\""

      # Source name
      STR_MOUNT=`echo $SOURCE_NAME | sed -r 's/(.*)-(.*)\.(.*\..*)$/\1/'`
      SRC_NAME=`validate_parameter "$SRC_NAME" "SOURCE NAME" "$STR_MOUNT"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "SOURCE NAME"
      [ $VERBOSE -eq $on ] && echo "[[SOURCE NAME]]=\"$SRC_NAME\""

      # Package name
      STR_MOUNT=$SRC_NAME
      PKG_NAME=`validate_parameter "$PKG_NAME" "PACKAGE NAME" "$STR_MOUNT"`
      [ $VERBOSE -eq $on ] && echo "[[PACKAGE NAME]]=\"$PKG_NAME\""

      # Version
      STR_MOUNT=`echo $SOURCE_NAME | sed -r 's/(.*)-(.*)\.(.*\..*)$/\2/'`
      VERSION=`validate_parameter "$VERSION" "VERSION" "$STR_MOUNT"` || handle_error $ERROR_MKBUILD_CONSTRUCTION "VERSION"
      [ $VERBOSE -eq $on ] && echo "[[VERSION]]=\"$VERSION\""

      # Construction source name string
      CONST_STRING="`validate_parameter "$CONST_STRING" "SOURCE NAME CONSTRUCTION STRING" "\\\$SRC_NAME-\\\$VERSION.tar.$EXTENSION"`"
      [ $VERBOSE -eq $on ] && echo "[[SOURCE NAME CONSTRUCTION STRING]]=\"$CONST_STRING\""

      # Build Source Name
      [ -z $SOURCE_NAME ] && SOURCE_NAME=`eval "echo $CONST_STRING"`
      [ $VERBOSE -eq $on ] && echo "SOURCE_NAME=\"$SOURCE_NAME\""

      # Documentations list
      DOCFILES=`validate_parameter "$DOCFILES" "DOCUMENTATION FILES" "NEWS TODO README AUTHORS INSTALL ChangeLog MAINTAINERS COPYING LICENSE SIGNATURE readme.*"`
      [ $VERBOSE -eq $on ] && echo "[[DOCUMENTATION FILES]]=\"$DOCFILES\""

      # ./configure option
      OPTIONS=`validate_parameter "$OPTIONS" "OTHER CONFIGURE ARGS" ""`
      [ $VERBOSE -eq $on ] && echo "[[OTHER CONFIGURE ARGS]]=\"$OPTIONS\""

      # PREFIX
      PREFIX=`validate_parameter "$PREFIX" "PREFIX" "/usr"`
      [ $VERBOSE -eq $on ] && echo "[[PREFIX]]=\"$PREFIX\""

      # Number of jobs
      NUMJOBS=`validate_parameter "$NUMJOBS" "NUMBER OF JOBS" ""`
      is_number $NUMJOBS && NUMJOBS="-j${NUMJOBS}"
      [ $VERBOSE -eq $on ] && echo "[[NUMBER OF JOBS]]=\"$NUMJOBS\""

      # Make slack-required file
      SLACK_REQUIRED=`validate_parameter "$SLACK_REQUIRED" "SLACK REQUIRED" ""`
      [ $VERBOSE -eq $on ] && echo "[[SLACK REQUIRED]]=\"$SLACK_REQUIRED\""

      # SlackBuild model
      MODEL=`validate_parameter "$MODEL" "SLACKBUILD MODEL" "generic.mkSlackBuild"`
      [ $VERBOSE -eq $on ] && echo "[[SLACKBUILD MODEL]]=\"$MODEL\""

      # PATCH FILES
      PATCH_FILES=`validate_parameter "$PATCH_FILES" "PATCH FILES" ""`
      [ $VERBOSE -eq $on ] && echo "[[PATCH_FILES]]=\"$PATCH_FILES\""

      # Strip  the smallest prefix containing num leading slashes from each file name found in the patch file.
      NPS_STRIP=`validate_parameter "$NPS_STRIP" "NUMBER OF PREFIX SLASHES TO STRIP" "1"`
      [ $VERBOSE -eq $on ] && echo "[[NUMBER OF PREFIX SLASHES TO STRIP]]=\"$NPS_STRIP\""

      # SlackBuild path
      # SlackBuild path in mkbuild parameters file
      SLACKBUILD=${PKG_NAME}.SlackBuild
      SLACKBUILD_PATH=`get_slackbuild_path`
      [ $VERBOSE -eq $on ] && echo "[[SLACKBUILD PATH]]=\"$SLACKBUILD_PATH\""

      #--------------------------------------------------------------
      #-                   Start build SlackBuild                   -
      #--------------------------------------------------------------
      [ $VERBOSE -eq $on ] && echo -e "\nStart SlackBuild make"
      SLACKBUILD_TEMP=$SLACKBUILD.tmp
      cp $MODEL_DIR/$MODEL $SLACKBUILD_TEMP

      # Apply mkpatch
      [ $VERBOSE -eq $on ] && echo -e "\nMkpatch section ..."
      apply_mkpatch

      # On/Off sections
      [ $VERBOSE -eq $on ] && echo -e "\nEnable/desable sections ..."
      activate_sections

      # Change sections
      [ $VERBOSE -eq $on ] && echo -e "\nEdit sections ..."
      section_edit

      # Change strings from model
      [ $VERBOSE -eq $on ] && echo -e "\nChange strings in $PACKAGE.SlackBuild model..."
      start_build $SLACKBUILD_TEMP

      # Remove off sections
      [ $VERBOSE -eq $on ] && echo -e "\nRemove off sections ..."
      build_slackbuild

      # Make slack-required file
      [ $VERBOSE -eq $on ] && echo -e "\nMake slack-required file ..."
      make_slack_required

      if [ -e slack-required ]; then
        DEPENDENCY_LIST="`cat slack-required | awk '{print $1}' | grep '^[a-z]' | tr '\012' ' '`"
        edit_file "REQUIRES" "$DEPENDENCY_LIST" $SLACKBUILD
      else
        edit_file "REQUIRES" " " $SLACKBUILD
      fi

      # Others changes
      [ $VERBOSE -eq $on ] && echo -e "\nEdit others [[]] parameters ..."
      change_others_parameters

      # Commit SlackBuild
      [ $SUBMIT_SLACKBUILD -eq $on ] && submit_slackbuild

      # Commit mkbuild
      [ $SUBMIT_MKBUILD -eq $on ] && submit_mkbuild
    ;;
    'search')
      SEARCH=`find $MKBUILDS_DIR -iname $MKBUILD_NAME`
      if [ "$SEARCH" == "" ]; then
        EXIT_CODE=1
      else
        EXIT_CODE=0
        echo $SEARCH
      fi
    ;;
  esac
fi

# Clear temporary files
[ $VERBOSE -eq $on ] && echo -e "\nRemove temporary files ..."
clear_files
exit $EXIT_CODE