# ------------------------------------------------------------------------------
# File manipulation function
# Copyright (c) 2019-2021 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
# ------------------------------------------------------------------------------
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# https://opensource.org/licenses/BSD-3-Clause
# ------------------------------------------------------------------------------

# Define normalised time display, filename friendly
stdtime()
{
    date --rfc-3339=seconds | sed -e 's/ /-/' -e 's/://g'
}
export -f stdtime

# Backup original installation files
# (or any old files if runned several time on same file)
backupdist()
{
    [[ $# -lt 1 ]] &&
        prnt E "backupdist(): Au moins un argument requis." &&
        exit 11

    for file in $@; do
        if [[ -e ${file} ]]; then
            local tmpstmp=$(stdtime)
            prnt I "Création d'une sauvegarde de ${file} du $tmpstmp..."
            cp -av $file $file.dist.$tmpstmp
     	fi
    done
}
export -f backupdist

# Install file to the host (specific first then general)
installfile()
{
    local filelist=""
    local i=0

    [[ $# -lt 2 ]] && (
        prnt E "installfile(): Au moins deux arguments requis."
        die 11
    )
    [[ $(echo $@ | grep "\*\|\?") ]] && (
        prnt E "installfile(): Les wildcards sont interdits."
        die 10
    )

    for arg in $@; do
        if [[ -f $MYPATH/repo/hosts/$HOSTNAME/$arg ]]; then
            filelist="$filelist $MYPATH/repo/hosts/$HOSTNAME/$arg"
        elif [[ -f $MYPATH/repo/common/$arg ]]; then
            filelist="$filelist $MYPATH/repo/common/$arg"
        else
            # Not found in repository, we expect full name
            filelist="$filelist $arg"
        fi
    done
    for i in $filelist; do :; done
    if [[ ! $i==/* ]]; then
        prnt E "installfile(): Target must be on the root filesystem."
        die 13
    fi
    prnt I "Création du répertoire $(dirname $i) si nécessaire..."
    mkdir -pv $(dirname $i)
    prnt I "Copie des fichiers ${filelist}..."
    cp -av $filelist || (
        prnt E "installfile(): Couldn't copy some required files..." &&
        die 12
    )
}
export -f installfile