#!/bin/bash
# -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
source "$(dirname "$0")/../load.sh" || exit 1

projdir=
args=(
    "Mettre à jour le script rundk"
    "[path/to/rundk]"
    -d:,--projdir:PROJDIR . "Copier les fichiers pour un projet de l'université de la Réunion"
)
parse_args "$@"; set -- "${args[@]}"

if [ -n "$projdir" ]; then
    setx projdir=abspath "$projdir"
    set -- "$projdir/sbin/rundk"
fi

rundk="${1:-.}"
[ -d "$rundk" ] && rundk="$rundk/rundk"

setx rundir=dirname -- "$rundk"
[ -d "$rundir" ] || mkdir -p "$rundir"

if [ -f "$rundk" ]; then
    ac_set_tmpfile userconf
    <"$rundk" awk '
# extraire la configuration depuis le fichier
BEGIN { p = 0 }
/SOF:rundk.userconf:/ { p = 1; next }
/EOF:rundk.userconf:/ { p = 0; next }
p == 1 { print }
' | awk '
# mettre en forme le fichier: pas de lignes vides avant et après
BEGIN { p = 0; have_pending = 0; pending = "" }
$0 != "" { p = 1 }
p == 1 {
  if ($0 != "") {
    if (have_pending) print pending
    print
    have_pending = 0
    pending = ""
  } else {
    if (!have_pending) have_pending = 1
    else pending = pending "\n"
  }
}
' >"$userconf"
    initial_config=
elif [ -n "$projdir" ]; then
    # forcer BUILDENV0=..env.dist et BUILDENV=.env pour les projets de
    # l'université de la Réunion
    initial_config=1
    ac_set_tmpfile userconf
    sed <"$MYDIR/rundk.userconf" >"$userconf" '
/^BUILDENV0=/s/=.*/=..env.dist/
/^BUILDENV=/s/=.*/=.env/
'
else
    initial_config=1
    userconf="$MYDIR/rundk.userconf"
fi

(
    cat "$MYDIR/rundk.1preamble"
    echo
    cat "$userconf"
    echo
    cat "$MYDIR/rundk.2postamble"
) >"$rundk"
[ -x "$rundk" ] || chmod +x "$rundk"

rsync -lpt "$MYDIR/Dockerfile.rundk" "$rundir/"

if [ -n "$projdir" ]; then
    if should_update "$rundir/build" "$MYDIR/build"; then
        cp "$MYDIR/build" "$rundir/build"
        chmod +x "$rundir/build"
    fi
    if [ ! -f "$projdir/..env.dist" ]; then
        sed <"$MYDIR/dot-build.env.dist" >"$projdir/..env.dist" '
/^IMAGENAME=/s/=.*\//='"$(basename -- "$projdir")"'\//
'
        initial_config=1
    fi
fi

[ -n "$initial_config" ]