159 lines
4.6 KiB
Bash
Executable File
159 lines
4.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ------------------------------------------------------------------------------
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# Init.sh: initialise a computer and conform it
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# Copyright (c) 2019-2021 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
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# ------------------------------------------------------------------------------
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# This file is distributed under 3-clause BSD license.
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# The complete license agreement can be obtained at:
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# https://opensource.org/licenses/BSD-3-Clause
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# ------------------------------------------------------------------------------
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# Global variables:
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# * INSTALL_MODE: if dev is declared here, packages will be installed one by
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# one instead of sending the whole package list to the package manage
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# * LOGFILE: Define manually output log file name. Can be superseeded through
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# command line parameter. ATTENTION: That variable cannot be set in
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# configuration file as it is treated before loading those, so it must be
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# defined before calling that script.
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# ------------------------------------------------------------------------------
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# trace ERR through pipes
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set -o pipefail
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# trace ERR through 'time command' and other functions
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set -o errtrace
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# set -e : exit the script if any statement returns a non-true return value
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set -o errexit
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# set +u : allow undeclared variables (configuration files don't need to be complete)
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set +o nounset
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# We want english messages
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export LC_ALL=C
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export LANG=C
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# Version of init
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export VERSION="0.99.3"
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# Store script's path
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export MYPATH=$(dirname $0)
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# Get hostname
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export HOSTNAME=$(hostname)
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# Load libraries
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for lib in $MYPATH/lib/*.sh; do
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. $lib
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done
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# =============================
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# ==== Basic sanity checks ====
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# =============================
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# Check if a function exists, return 0 if so
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function_exists() {
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declare -f -F $1 > /dev/null
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return $?
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}
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function_exists prnt || (
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echo "*** ERREUR FATALE !"
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echo "*** Il manque des fonctions vitales venant des bibliothèques."
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exit 3
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)
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# ======================
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# ==== Main Program ====
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# ======================
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# Initializing global variables
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export CHECK_ONLY=false
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export JUMP=false
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export KEEPGOING=false
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export RESUME=false
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export STAGE_FILE="$MYPATH/stage"
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read_commandline $@
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# After this we need to be root
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# (--help and --version are allowed as unprivileged user)
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check_root
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# Logfile variable treatment -- cannot be a function
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if [[ -n $NEW_LOGFILE ]]; then
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export LOGFILE=$NEW_LOGFILE
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else
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export LOGFILE=${LOGFILE:-"$MYPATH/log/init-$(uname -n)-$(stdtime).log"}
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fi
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prnt I "Création du répertoire d'accueil du fichier log..."
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[[ ! -d $(dirname $LOGFILE) ]] && mkdir -pv $(dirname $LOGFILE)
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# Log all outputs to the logfile
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exec 3>&1 4>&2
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trap 'exec 2>&4 1>&3' 0 1 2 3
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exec > >(tee -a $LOGFILE)
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exec 2> >(tee -a $LOGFILE >&2)
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prnt I "Démarrage d'init version $VERSION."
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prnt I "Le fichier de log est $LOGFILE."
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# -- Cannot be a function ends here
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load_configuration
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process_commandline_and_vars
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# Reinit stage file if no resuming
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if [[ $RESUME != true ]]; then
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[[ -f $STAGE_FILE ]] && rm -f $STAGE_FILE
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fi
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# Run prechecks
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[[ JUMP != true ]] && for mod in $MODULE_LIST; do
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. modules/$mod.sh
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version=VER_$mod
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prnt I "Vérification initiale pour $mod version ${!version}..."
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precheck_$mod
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done
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# If we only checks, we stop here
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if [[ $CHECK_ONLY == true ]]; then
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prnt I "Mode de vérification seulement, on s'arrête là."
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exit 0
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else
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if [[ $JUMP == true ]]; then
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prnt W "Les vérification sont évités, attention !"
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else
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prnt I "Toutes les vérification ont été faites."
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fi
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echo
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if [[ $KEEPGOING == true ]]; then
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echo -e "${BRed}ATTENTION : Vous avez demandé la poursuite du script en cas d'erreur.${DEFAULTCOL}"
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echo -e "${BRed}ATTENTION : Cette option peut produires des résultats chaotiques.${DEFAULTCOL}"
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echo -e "${BRed}ATTENTION : Cette option ne devrait être utilisé que sur système de test.${DEFAULTCOL}"
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echo
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fi
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echo "Appuyez sur CTLR + C maintenant si vous souhaitez interrompre."
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echo -e "${BYellow}Si vous continuez après cette étape le système sera modifié !${DEFAULTCOL}"
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echo
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read -n 1 -s -r -p "Appuyer sur n'importe quelle touche pour continuer..."
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fi
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# We launch modules one after one
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for mod in $MODULE_LIST; do
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if [[ $RESUME == true ]] && [[ $(grep $mod $STAGE_FILE) ]]; then
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continue
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fi
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# We need this only if JUMP is set but doesn't matter if it's done again
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. modules/$mod.sh
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echo $mod >> $STAGE_FILE
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version=VER_$mod
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prnt I "Application des modifications pour $mod version ${!version}..."
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$mod
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done
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prnt I "That's all folks !"
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rm -f $STAGEFILE
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