#!/bin/bash
#
# This script prepares the update packages to include them into
# pacman repository.
#
# $Id$
#

#exec 2>/tmp/prepare_updates_trace$$.log
#set -x


# ----------------------------------------------------------------------------
# Download base updates and include them into the list of packages
# ----------------------------------------------------------------------------
downloadBaseUpdates ()
{
    echo "=============================================================================="
    echo "Checking for base updates..."
    countOfUpdates=0
    downloadedUpdates=0
    for searchresult in `find . -name "update.*.info" -o -name "base.*.info"`
    do
        echo "Found $searchresult"
        updateFolderName=${searchresult%/*}
        updateFolderName=${updateFolderName##*/}
        cd $updateFolderName
        while read subpackage rest
        do
            if [ "${subpackage%%>*}" == '<sub-package' ]
            then
                # Extract package name
                subpackage=${subpackage#*>}
                subpackage=${subpackage%<*}

                # Setup new package name
                newPackageName=${subpackage/update-/base}

                # Remove extension
                subpackageName=${subpackage%%.tar.*}

                # Extract version
                subpackageVersion=${subpackageName##*-}

                # Change from "update-x.y.z" to "basex.y.z"
                subpackageName=${subpackageName/update-/base}

                echo "Found subpackage $subpackage"
                cd ..
                if [ ! -d $subpackageName ]
                then
                    mkdir ${subpackageName}
                    cd ${subpackageName}
                    if ! wget --no-check-certificate $username $password ${downloadURLRoot}/${updateFolderName}/${subpackage} -O ${newPackageName}
                    then
                        # Handle if package could not be downloaded
                        cd ..
                        rm -rf ${subpackageName}
                        cd $updateFolderName
                        echo "Unable to download ${subpackage}, skipping this package"
                        continue
                    fi
                    if ! wget --no-check-certificate $username $password ${downloadURLRoot}/${updateFolderName}/${subpackage%%.info} -O ${newPackageName%%.info}
                    then
                        # Handle if package info file could not be downloaded
                        cd ..
                        rm -rf ${subpackageName}
                        cd $updateFolderName
                        echo "Unable to download ${subpackage%%.info}, skipping this package"
                        continue
                    fi
                    # Increase counter of downloaded packages
                    downloadedUpdates=$((downloadedUpdates+1))
                    downloadedCurrentPackage=true
                else
                    cd ${subpackageName}
                    if $doDebug
                    then
                        echo "Package ${subpackage%%.info} already downloaded."
                    fi
                    downloadedCurrentPackage=false
                fi

                # Increase counter of all packages
                countOfUpdates=$((countOfUpdates+1))

                realPackageVersion=`grep "<version>" ${newPackageName} | sed -e 's#^.*<version>##' -e 's#</version>.*\$##'`
                realPackageVersion=${realPackageVersion/cvs/svn}

                # Update package name and version on pkg info file
                sed -e "s#<name>.*\$#<name>${subpackageName}</name>#" ${newPackageName} \
                    -e "#<version>.*\$#<version>${realPackageVersion}</version>#" > ${newPackageName}.bak
                mv ${newPackageName}.bak ${newPackageName}

                cd ..
                echo "$subpackageName $subpackageName $realPackageVersion 7" >> activePackageFolders.txt
                if $downloadedCurrentPackage
                then
                    # Store package data to be able to migrate only new packages
                    echo "$subpackageName $subpackageName $realPackageVersion 7" >> downloadedPackageFolders.txt
                fi

                cd $updateFolderName
            fi
        done < ${searchresult##*/}
        cd ..
    done
    echo "Downloaded $downloadedUpdates new base updates, all in all $countOfUpdates base updates available."
    confirmContinue
}



# ----------------------------------------------------------------------------
#
# ----------------------------------------------------------------------------
prepareUpdatePackages ()
{
    idx=1
    previousVersion='base'
    for currentUpdatePackage in `ls base*/base*.info | LANG=C sort -t. -k1,1 -k2,2 -k3,3 -n`
    do
        echo "Preparing update $currentUpdatePackage"
        cd ${currentUpdatePackage//\/*}

        # ---------------------------------------------------------
        # Setup require tag on package info file to previous update
        sed -e "/<require>/d" -e "/<version>.*/a\\" -e "<require>${previousVersion}</require>" ${currentUpdatePackage//*\/} > ${currentUpdatePackage//*\/}-$$
        mv ${currentUpdatePackage//*\/}-$$ ${currentUpdatePackage//*\/}
        previousVersion='base '`grep "<version>" ${currentUpdatePackage//*\/} | sed -e "s#<version>##g" -e "s#</version>##g"`

        cd - > /dev/null
        idx=$((idx+1))
    done
}