#!/bin/bash
#
# createpkg: package builder using http://slack.sarava.org/slackbuilds scripts
# feedback: rhatto at riseup.net | gpl
#           rudsonalves at yahoo.com.br
#
#  createpkg 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.
#
#  createpkg 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
#
# /etc/simplepkg/slackbuildrc parameters:
#
# SLACKBUILDS_DIR="/folder/to/place/slackbuilds", defaults to /var/slackbuilds
# SVN="svn://repository", defaults do svn://slack.sarava.org/slackbuilds
# SYNC="yes|no", whether to always update the repository
#

#---------------------------------------------------
#               Createpkg functions
#---------------------------------------------------

CREATEPKG_VERSION="1.1.15"

function usage {

  # Help message
  echo -e "${red}NAME${normal}
        createpkg - create Slackware packages from SlackBuilds in Sarava repository

${red}SYNOPSIS
        createpkg${normal} [${green}OPTIONS${normal}] [${green}program${normal}]

${red}DESCRIPTION${normal}
        [${green}program${normal}] name to build/search

        Input ${green}OPTIONS${normal}:
            ${red}-i${normal}, ${red}--install${normal} ${green}<program>${normal}
                create the package ${green}<program>${normal} and install
            ${red}-a${normal}, ${red}--all${normal}
                create all packages and install
            ${red}-np${normal}, ${red}--no-deps${normal}
                does not solve dependences
            ${red}-d${normal}, ${red}--debug${normal} ${green}<program>${normal}
                enable SlackBuild debug (sh -x ...)
            ${red}-s${normal}, ${red}--search${normal} ${green}S<program${normal}>
                search for a ${green}<program>${normal}
            ${red}-f${normal}, ${red}--info${normal} ${green}<program>${normal}
                show description and dependences of the program
            ${red}-l${normal}, ${red}--list${normal}
                list all the SlackBuilds
            ${red}--sync${normal}
                synchronize SlackBuilds repository
            ${red}-h${normal}, ${red}--help${normal}
                show this help

${red}EXAMPLES${normal}
        ${red}createpkg -i scilab${normal}
            build and install scilab package
        ${red}createpkg -s at*${normal}
            search for all at* SlackBuilds scripts (at-spi, atk, ...)
        ${red}createpkg --info pyrex${normal}
            show pyrex description and dependences

${red}AUTHOR${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 <${blue}rudsonalves[at]rra.etc.br${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 build_all_slackbuild {

  # Build all SlackBuilds in repository
  createpkg --sync

  cd $SLACKBUILDS_DIR
  LIST=`find . -name *.SlackBuild | sed 's/.*\/\(.*\)\.SlackBuild$/\1/' | sort | uniq`
  for i in $LIST; do
    [ ! lspkg $i >/dev/null ] && createpkg -i $i
  done
}

function check_config {

  # check the configuration
  TMP=${TMP:=/tmp};
  if [ ! -z "$REPOS" ]; then
    MAKEPKG_REPOS="$REPOS"
  else
    REPOS=$MAKEPKG_REPOS
  fi
  # Create $TMP and $REPOS if need
  [ ! -e $TMP ] && mkdir -p $TMP
  [ ! -e $MAKEPKG_REPOS ] && mkdir -p $MAKEPKG_REPOS
  #
  SLACKBUILDS_DIR=${SLACKBUILDS_DIR:=/var/slackbuilds}
  #
  SYNC=${SYNC:=$no}
  SYNC=`convert_boolean $SYNC`
  BASEDIR="`dirname $SLACKBUILDS_DIR`"

}

function solve_dep {

  # Solve dependency
  [ $# -ne 3 ] && handle_error $ERROR_PAR_NUMBER
  local PACK="$1"
  local COND="$2"
  local VER="$3"

  # Check package in local system
  PACK="`echo $PACK | sed -e 's/\+/\\\+/'`"
  INSTALLED=`eval "ls /var/log/packages/ | egrep -E '^$PACK-[^-]+-[^-]+-[^-]+$'"`
  CHECK=$?

  # TODO: Make check version procedures
  if [ -z "$INSTALLED" ]; then
    if [ $CHECK -ne 0 ]; then
      # Check package in SlackBuilds tree
      eecho $messag "$BASENAME: processing $PACKAGE dependency $PACK"
      SYNC=$no CREATEPKG_CHILD=$CREATEPKG_CHILD createpkg --install $PACK

      # Check if the package was built and installed
      EXIT_CODE=$?

      if [ $EXIT_CODE -eq $ERROR_CREATEPKG_SLACKBUILD_NOTFOUND ]; then
        # Try to use simplaret
        ARCH=$CREATE_ARCH simplaret --update
        ARCH=$CREATE_ARCH simplaret --install $PACK
        [ $? -ne 0 ] && handle_error $ERROR_CREATEPKG_SLACKBUILD_NOTFOUND $PACK
      elif [ $EXIT_CODE -ne 0 ]; then
        handle_error $EXIT_CODE $PACK
      fi

    fi
  fi

}

function find_slackbuild {

  # Find SlackBuild script in the repository
  [ $# -ne 1 ] && handle_error $ERROR_PAR_NUMBER
  OUTPUT=`find $SLACKBUILDS_DIR -iname $1.SlackBuild`
  [ "$OUTPUT" != "" ] && EXIT_CODE=0 || EXIT_CODE=1
  echo $OUTPUT
}

function info_builds {

  # Show packages info
  if [ "$PKG_PATH" != "" ]; then
    for i in $PKG_PATH; do
      PACKAGE=`basename $i .SlackBuild`
      NAME_UP=`echo $PACKAGE | tr [a-z] [A-Z]`
      eecho $commun "$NAME_UP: "

      PKG_DIR=`dirname $i`
      if [ -e $PKG_DIR/slack-desc ]; then
        eval "cat $PKG_DIR/slack-desc | grep '^$PACKAGE:' | cut -f2- -d:"
        eecho $normal
      else
        eval "cat $i | grep '^$PACKAGE:' | cut -f2- -d:"
        eecho $normal
      fi

      if [ -e $PKG_DIR/slack-required ]; then
        eecho $commun "slack-required"
        cat $PKG_DIR/slack-required | sed 's/^/ /'
      fi
    done
  fi

}

function list_builds {

  # List all available SlackBuilds
  cd $SLACKBUILDS_DIR
  echo "Sarava SlackBuilds list"
  # level 1
  for i in *; do
    if [ -d $i ]; then
      echo -e "  $i: "
      (
        cd $i
        # level 2
        for j in *; do
          if [ -d $j ]; then
            eecho $commun "    $j"
            (
              cd $j
              BUILD="`ls *.SlackBuild 2>/dev/null`"
              if [ "$BUILD" != "" ]; then
                # level 3
                for k in $BUILD; do
                  eecho $messag "      $k"
                done
              else
                BUILD=""
              fi
              for k in *; do
                if [ -d $k ]; then
                  eecho $messag "      $k.SlackBuild"
                fi
              done
            )
          fi
        done
      )
    fi
  done

}

function load_parameters {

  # Load Createpkg parameters
  MAKEPKG_REPOS="`eval_parameter MAKEPKG_REPOS /var/simplaret/repos`"
  SOURCE_DIR="`eval_parameter SOURCE_DIR /var/simplaret/sources`"
  SLACKBUILDS_DIR="`eval_parameter SLACKBUILDS_DIR /var/simplaret/slackbuilds`"
  SLACKBUILDS_SVN="`eval_parameter SLACKBUILDS_SVN svn://slack.sarava.org/slackbuilds`"

  COLOR_MODE="`eval_parameter COLOR_MODE none`"
  CREATE_ARCH="`eval_parameter CREATE_ARCH $(default_arch)`"
  CREATE_CLEANUP="`eval_parameter CREATE_CLEANUP yes`"

  REMOVE_OLD_PACKAGE="`eval_boolean_parameter REMOVE_OLD_PACKAGE $off`"
  MOVE_BIN_PACKAGE="`eval_boolean_parameter MOVE_BIN_PACKAGE $off`"

}

#---------------------------------------------------
#                 Starting createpkg
#---------------------------------------------------
# Common functions
COMMON="/usr/libexec/simplepkg/common.sh"
SIMPLEPKG_CONF="/etc/simplepkg/simplepkg.conf"
BASENAME="`basename $0`"
EXIT_CODE=0

if [ -f "$COMMON" ]; then
  source $COMMON
else
  echo "error: file $COMMON found, check your $BASENAME installation"
  mk_exit 0
fi

set_constants

# Load simplepkg.conf variables
load_parameters

# Loading error codes
error_codes

# Load slackbuildrc definitions
if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
else
  source /etc/slackbuildrc 2>/dev/null
fi

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

# This is used to show how many children process we have
if [ -z "$CREATEPKG_CHILD" ]; then
  CREATEPKG_CHILD=1
else
  let CREATEPKG_CHILD++
fi

BASENAME="`basename $0`[$CREATEPKG_CHILD]"

check_config
check_repo $SLACKBUILDS_DIR $SLACKBUILDS_SVN

INSTALL=$off
NO_DEPS=$off
DEBUG=$off

case $1 in
  '--all'|'-a')
    # build all SlackBuilds in repository
    build_all_slackbuild
    exit $EXIT_CODE
  ;;
  '--search'|'-s')
    [ $# -ne 2 ] && usage   # two parameters is required
    LIST=`find_slackbuild $2`
    for i in $LIST; do
        echo $i | sed 's/.*\/\([^\/]\+\)\.[Ss]lack[Bb]uild$/  \1/'
    done
    exit $EXIT_CODE
  ;;
  '--info'|'-f')
    [ $# -ne 2 ] && usage   # two parameters is required
    PKG_PATH=`find_slackbuild $2`
    info_builds
  exit $EXIT_CODE
  ;;
  '--install'|'-i')
    [ $# -ne 2 ] && usage   # two parameters is required
    PACKAGE="$2"
    INSTALL=$on
  ;;
  '--no-deps'|'-nd')
    [ $# -ne 2 ] && usage   # two parameters is required
    NO_DEPS=$on
    PACKAGE="$2"
  ;;
  '--debug'|'-d')
    [ $# -ne 2 ] && usage   # two parameters is required
    PACKAGE="$2"
    DEBUG=$on
  ;;
  '--sync')
    sync_repo $SLACKBUILDS_DIR $SLACKBUILDS_SVN
    exit $EXIT_CODE
  ;;
  '--help'|'-h'|'')
    usage
    exit $EXIT_CODE
  ;;
  '--list'|'-l')
    list_builds
    exit $EXIT_CODE
  ;;
  *)
    if [ "${1:0:1}" != "-" ]; then
      PACKAGE="$1"
    else
      usage
    fi
  ;;
esac

# Synchronize repository
[ $SYNC -eq $yes ] && sync_repo $SLACKBUILDS_DIR $SLACKBUILDS_SVN

# Get SlackBuild script
BUILD_SCRIPT="`find_slackbuild $PACKAGE`"

# Check SlackBuild script found
if [ -z "$BUILD_SCRIPT" ]; then
  handle_error $ERROR_CREATEPKG_SLACKBUILD_NOTFOUND $PACKAGE
fi

# Select one SlackBuild
if [ "`echo $BUILD_SCRIPT | wc -w`" -gt 1 ]; then
  AUX="$PS3"
  PS3="Choice: "
  LIST=`echo $BUILD_SCRIPT | sed 's/ /\n/g' | sed -r 's/.*\/(.*)\.SlackBuild$/\1/'`" EXIT"

  select PACKAGE in `echo $LIST`; do
    break
  done

  if [ "$PACKAGE" = "EXIT" ]; then
    eecho $error "error: None package select"
    exit 1
  fi

  # Select only one SlackBuild in BUILD_SCRIPT
  BUILD_SCRIPT=`echo $BUILD_SCRIPT | sed 's/ /\n/g' | grep "/$PACKAGE.SlackBuild"`
  PS3="$AUX"
else
  PACKAGE=`basename $BUILD_SCRIPT .SlackBuild`
fi

# Get dirname and script name from slackbuild
SCRIPT_BASE="`dirname $BUILD_SCRIPT`"
SCRIPT_NAME="`basename $BUILD_SCRIPT`"
eecho $messag "$BASENAME: found script $PACKAGE.SlackBuild, now checking for dependencies"

# Sets the package's slack-required
if [ -f "$SCRIPT_BASE/$PACKAGE.slack-required" ]; then
  SLACK_REQUIRED="$SCRIPT_BASE/$PACKAGE.slack-required"
elif [ -f "$SCRIPT_BASE/slack-required" ]; then
  SLACK_REQUIRED="$SCRIPT_BASE/slack-required"
fi

if [ ! -z "$SLACK_REQUIRED" -a $NO_DEPS -ne $on ]; then
  # This routine checks for dependencies in package's slack-required
  (
    grep '^[^#]' $SLACK_REQUIRED | while read dep; do
      if [ ! -z "$dep" ]; then
        PROGRAM="`echo $dep | awk '{ print $1 }'`"
        CONDITION="`echo $dep | awk '{ print $2 }' | tr [=\>\<] [egl]`"
        VERSION="`echo $dep | awk '{ print $3 }' | tr -dc '[:digit:]'`"
        solve_dep "$PROGRAM" "$CONDITION" "$VERSION"
      fi
    true
    done
  )
  [ $? -ne 0 ] && handle_error $error $ERROR_CREATEPKG_DEPENDENCY

  eecho $messag "$BASENAME: done checking for $PACKAGE dependencies"
else
  eecho $messag "$BASENAME: no unmet dependencies for $PACKAGE"
fi

eecho $messag "$BASENAME: processing $SCRIPT_NAME"

# Change to script base directory
cd $SCRIPT_BASE

# Run SlackBuild script
[ $DEBUG -eq $off ] && SHELL_FLAG="+x" || SHELL_FLAG="-x"
(
  LANG=en_US \
  SRC_DIR=${SRC_DIR:=$SOURCE_DIR} \
  SRC=${SRC_DIR:=$SOURCE_DIR} \
  ARCH=${ARCH:=$CREATE_ARCH} \
  COLOR=${COLOR:=$COLOR_MODE} \
  REPOS=${REPOS:=$MAKEPKG_REPOS} \
  CLEANUP=${CLEANUP:=$CREATE_CLEANUP} \
  INTERACT=no sh $SHELL_FLAG ./$SCRIPT_NAME
)

# Check if package was built
handle_error $? $PACKAGE

# Get package name
PKG_NAME="`ls -1 -c $MAKEPKG_REPOS/$PACKAGE-*-*-*.tgz | head -n 1 | xargs basename`"

# Select repository directory
[ $MOVE_BIN_PACKAGE -eq $on ] && NEW_REPOS=$MAKEPKG_REPOS/$( echo ${SCRIPT_BASE#$SLACKBUILDS_DIR/} ) || NEW_REPOS=$MAKEPKG_REPOS

# Create repository directory
# TODO: subversion integration
[ ! -e $NEW_REPOS ] && mkdir -p $NEW_REPOS 2>/dev/null

# Remove old packages from repository tree
# TODO: subversion integration
[ $REMOVE_OLD_PACKAGE -eq $on ] && rm $NEW_REPOS/$PACKAGE-*-*-*.tgz 2>/dev/null

# Move package and slack-required to SlackBuilds-like tree
# TODO: subversion integration
[ $MOVE_BIN_PACKAGE -eq $on ] && mv $MAKEPKG_REPOS/$PKG_NAME $NEW_REPOS/
[ ! -z "$SLACK_REQUIRED" ] && cp $SLACK_REQUIRED $NEW_REPOS/$PACKAGE.slack-required

# Install package
if [ "$INSTALL" -eq $on ]; then
  # as we dont have the full package file name, we'll
  # use the newer file name that matches our wildcard:

  upgradepkg --install-new $NEW_REPOS/$PKG_NAME
fi

# TODO: subversion integration
#       generate or update all metadata
#       svn commit
# Update repository FILELIST.TXT, ...
(
  cd $MAKEPKG_REPOS
  gen_filelist
)

exit $EXIT_CODE