zzz_main_fct.sh: splitted in 3 files, chroot.sh, command_line.sh and loaders.sh

lib/chroot.sh

@@ -0,0 +1,46 @@
+# ------------------------------------------------------------------------------
+# Chroot system functions
+# This file is part of the init.sh project
+# 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
+# ------------------------------------------------------------------------------
+
+
+# ------------------------------------------------------------------------------
+# If chrooted, we need to bootstrap to a new copy of our directory tree
+chroot_bootstrap()
+{
+    if [[ ! -d $CHROOT_PATH ]]; then
+        prnt E "The path given to chroot don't exists."
+        die 14
+    fi
+    if [[ ! -d $CHROOT_PATH/tmp ]]; then
+        prnt E "The target filesystem doesn't seems to be a valid installation."
+        die 15
+    fi
+
+    local tmpdir=$(mktemp -d $CHROOT_PATH/tmp/init.sh-XXXX)
+    local bootstrap_items="conf lib modules repo bash.rc init.sh prepost.d"
+    if [[ $RESUME == true ]]; then
+        bootstrap_items="$bootstrap_items $STAGE_FILE"
+    fi
+
+    prnt I "Preparing root change."
+    cp -av $bootstrap_items $tmpdir
+
+    prnt I "Changing root and starting a fork of init.sh..."
+    chroot $CHROOT_PATH /bin/bash -c 'CHROOT_DONE=true; $tmpdir/init.sh $@'
+
+    # If stage file still exists we copy it to be able to resume later
+    if [[ -e $tmpdir/$(basename $STAGE_FILE) ]]; then
+        cp $tmpdir/$(basename $STAGE_FILE) $STAGE_FILE
+    fi
+
+    prnt I "Back to host system and clean up."
+    rm -rf $tmpdir
+}
+
+