Subversion Repositories ALCASAR

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#!/bin/bash
#
# Authors: Mageia Team
# Update for ALCASAR : Hamza ESSAYEGH (Querdos) - Rexy - Laurent Roux
##
# Usage: $0 ARGS
#     --iso-file, -i      Mageia-xxx-xxxxxx-xxx.iso (mandatory)
#     --config-file, -c   Minimal rpm list (mandatory)
#     --lang, -l          Language for installation (optional)
#                         Supported languages: fr;en
#

# Colors parameters
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
NC='\033[0m'

# Check if a given option is valid an set a global var with the option value
function optionIsValid() {
    # Retrieving option and its value
    local option=$1
    local value=$2

    # Available options (short and long)
    local configFileOption="--config-file -c"
    local isoFileOption="--iso-file -i"
    local langOption="--lang -l"

    # Config file option ?
    for opt in ${configFileOption}; do
        if [[ ${opt} = ${option} ]]; then
            configFile=${value}
            return 0
        fi
    done

    # Iso file option ?
    for opt in ${isoFileOption}; do
        if [[ ${opt} = ${option} ]]; then
            isoFile=${value}
            return 0
        fi
    done

    # Language option ?
    for opt in ${langOption}; do
        if [[ ${opt} = ${option} ]]; then
            lang="-${value}"
            return 0
        fi
    done

    # Unknown option
    echo "Unknown option '${option}'. Aborting." && exit 1
}

# Check if needed packages are installed
function requiredPackagesInstalled() {
    # Checking mkisofs
    command -v genisoimage > /dev/null 2>&1 || \
        { echo "The package genisoimage is not installed." && \
            genisoimageNotInstalled=1; }

    # Checking genhdlist2
    command -v genhdlist2 > /dev/null 2>&1 || \
        { echo "The package genhdlist2 is not installed." && \
            genhdlist2NotInstalled=1; }

    # Checking gendistrib
    command -v gendistrib > /dev/null 2>&1 || \
        { echo "The package gendistrib is not installed (rpmtools)." && \
            gendistribNotInstalled=1; }

    # If one of the following, aborting
    [[ ${genisoimageNotInstalled} -eq 1 ]] || \
        [[ ${genhdlist2NotInstalled} -eq 1 ]] || \
        [[ ${gendistribNotInstalled} -eq 1 ]] && exit 1
}

# Check if a given language is supported by this script or not
function languageIsSupported() {
    local lang=$1
    local supportedLang="fr en"

    # Comparing with available langs
    for supLang in ${supportedLang}; do
        if [[ ${supLang} = ${lang} ]]; then
            return 0
        fi
    done

    # Language is not supported
    echo "Language '${lang}' is not supported. Aborting." && exit 1
}

# "Purify" the rpm name -> for the plop.idx file ("Mageia-5.1-x86_64 rpmname" for example)
function purifyRpmName() {
    local str=$1
    local arch=$2
    local len=${#str}

    p=`echo ${str} | grep -oP ".*\.mga6"`
    echo "Mageia-6-${arch} ${p}"
}

# Checking arguments (rpm_list and iso file and eventually lang)
[[ ($# -lt 4) || ($# -eq 5) || ($# -gt 6) ]] && echo \
"Usage: $0 ARGS
    --iso-file, -i      Mageia-xxx-xxxxxx-xxx.iso (mandatory)
    --config-file, -c   Minimal rpm list (mandatory)
    --lang, -l          Language for installation (optional)
                        Supported languages: fr;en
"
&& exit 1

# Checking options
optionIsValid $1 $2 && optionIsValid $3 $4

# Checking if other options have been specified
[[ $# -eq 6 ]] && optionIsValid $5 $6

# Checking that mandatory option have been specified
[[ -z ${isoFile} ]] && { echo "Iso file option is mandatory. Aborting." && exit 1; }
[[ -z ${configFile} ]] && { echo "Configuration file option is mandatory. Aborting." && exit 1; }

# Checking validity of options
[[ -f ${configFile} ]] || { echo "Invalid config file. Aborting." && exit 1; }
[[ -f ${isoFile} ]] || { echo "Invalid iso file. Aborting." && exit 1; }

# Checking required packages
requiredPackagesInstalled

# Actual directory
actualDir=$(pwd)

# Retreiving elements in rpm_list
filesInRpm=$(cat ${configFile})

# official and new dirs
mageiaNewDir=/tmp/mageia_new
mageiaOfficialDir=/tmp/mageia_official

# Checking that executed as root
[[ $(whoami) != "root" ]] && \
    { echo "This script must be executed with root privileges. Aborting." && exit 1; }

# Mounting the image
echo "Mounting the image..."
[[ ! -d ${mageiaOfficialDir} ]] && mkdir ${mageiaOfficialDir}
mount -o ro,loop ${isoFile} ${mageiaOfficialDir} || { echo "Failed mounting '${isoFile}'. Aborting." && exit 1; }

# Checking architecture
[[ -d ${mageiaOfficialDir}/x86_64 ]] && arch=x86_64 || arch=i586

# Creating new directory that will contains the "cleared" iso image
[[ ! -d ${mageiaNewDir} ]] && mkdir ${mageiaNewDir}

# Copying main files except core and nonfree directories
echo "Extracting base image..."
cd /tmp/mageia_official && \
    tar cf - --exclude=${arch}/media . | (cd /tmp/mageia_new && tar xf - ) && cd "${actualDir}"

# Creating new directories core and nonfree and dir for alcasar stufs
mkdir -p ${mageiaNewDir}/${arch}/{media/{core,nonfree},install/alcasar}

# Copying configuration files
echo "Copying initial configuration files..."

cp -f ${mageiaOfficialDir}"/isolinux/isolinux.bin" ${mageiaNewDir}/isolinux/isolinux.bin  
cp ${actualDir}/config/alcasar.tar.gz ${mageiaNewDir}/${arch}/install/alcasar

###   only if we want to change the normal install procedure ###
#cp ${actualDir}/config/first_login ${mageiaNewDir}/${arch}/install/alcasar
#cp ${actualDir}/config/auto_inst-${arch}${lang}.cfg.pl ${mageiaNewDir}/${arch}/install/alcasar/auto_inst-${arch}.cfg.pl
#cp -f ${actualDir}"/config/isolinux-x86_64.cfg" ${mageiaNewDir}/isolinux/isolinux.cfg
   

# alcasar needed rpms
if [ -f ${actualDir}/rpms-${arch}.tar.gz ]; then
    echo -e "${GREEN}RPMs archive found, using it${NC}"
    cp ${actualDir}/rpms-${arch}.tar.gz ${mageiaNewDir}/${arch}/install/alcasar
else
    echo -e "${RED}config/rpms-x86_64.tar.gz not found, skipping${NC}"
fi

# Retrieving core and nonfree dirs (official)
coreDir=${mageiaOfficialDir}/${arch}/media/core
nonFreeDir=${mageiaOfficialDir}/${arch}/media/nonfree

# Retrieving core and nonfree dirs (new)
coreDirNew=${mageiaNewDir}/${arch}/media/core/
nonFreeDirNew=${mageiaNewDir}/${arch}/media/nonfree
plopFilePath=${mageiaNewDir}/${arch}/media/plop.idx

# Initializing counts
countCore=0
countNonFree=0

# Creating the RPM list in core and nonfree and clearing the plop.idx file
echo "Comparing RPMS..."
> ${plopFilePath}

# Selecting rpm
for rpm in ${filesInRpm}; do
        # Retreiving output of ls in directories
        fileInCore=$(ls ${coreDir} | grep "^${rpm}")
        fileInNonFree=$(ls ${nonFreeDir} | grep "^${rpm}")

        # If present in core, copying in core_new
        if [[ ! -z ${fileInCore} ]]; then
                # Moving RPM
                cp "${coreDir}/${fileInCore}" ${coreDirNew}
                countCore=$(expr ${countCore} + 1)

    # Updating the plop.idx
    purifyRpmName ${rpm} ${arch} >> ${plopFilePath}

  # If present in nonfree, copying in nonfree_new
        elif [[ ! -z ${fileInNonFree} ]]; then
                # Copying RPM
                cp  "${nonFreeDir}/${fileInNonFree}" ${nonFreeDirNew}
                countNonFree=$(expr ${countNonFree} + 1)

    # Updating the plop.idx
    purifyRpmName ${rpm} ${arch} >> ${plopFilePath}
        fi
done

# Sorting the plop file alphabetically
cat ${plopFilePath} | sort > /tmp/tmpFileMageia && mv /tmp/tmpFileMageia ${plopFilePath}

# Informations
echo "${countCore} files kept from core"
echo "${countNonFree} files kept from nonfree"

# Generating media info for core
echo "Generating media_info for core..."
genhdlist2 ${coreDirNew} --allow-empty-media --quiet

echo "Generating media_info for nonfree..."
genhdlist2 ${nonFreeDirNew} --allow-empty-media --quiet

# Puting pubkeys in media_info
cp ${coreDir}/media_info/pubkey ${coreDirNew}/media_info/
cp ${nonFreeDir}/media_info/pubkey ${nonFreeDirNew}/media_info/

# Retrieving media.cfg & compssUsers.pl depending on the arch
mkdir ${mageiaNewDir}/${arch}/media/media_info
cp ${mageiaOfficialDir}/${arch}/media/media_info/compssUsers.pl ${mageiaNewDir}/${arch}/media/media_info/compssUsers.pl
cp ${mageiaOfficialDir}/${arch}/media/media_info/media.cfg ${mageiaNewDir}/${arch}/media/media_info/media.cfg

# Generating distr
echo "Generating mirror tree..."
gendistrib -s ${mageiaNewDir}/${arch}

# Creating the new iso file
echo "Creating the isofile..."
newIsoName=Mageia-6-${arch}${lang}-Alcasar.iso
cd ${mageiaNewDir} && genisoimage -quiet -o ${actualDir}/${newIsoName} \
    -b isolinux/isolinux.bin \
    -c boot.catalog \
    -no-emul-boot -boot-load-size 4 \
    -boot-info-table -J -R -V "Mageia-6 Alcasar (${arch})" .

# Unmounting
echo "Umounting..."
umount ${mageiaOfficialDir} && rmdir ${mageiaOfficialDir}

# Removing temporary dir
rm -rf ${mageiaNewDir}

# Setting same permissions as the initial image
cd ${actualDir}
chmod --reference=${isoFile} ${newIsoName}
chown --reference=${isoFile} ${newIsoName}

# Finished
echo "Done."