Big refactoring while now using rebash ash bash library.

1 files changed, 156 insertions, 193 deletions

diff --git a/builder/build-initramfs.sh b/builder/build-initramfs.sh
index 5e5195fe..a1824842 100755
--- a/builder/build-initramfs.sh
+++ b/builder/build-initramfs.sh
@@ -61,220 +61,183 @@ core.import exceptions
 
 exceptions._init
 
-__NAME__='build-initramfs'
+# region properties
 
+build_initramfs_verbose='no'
+build_initramfs_debug='no'
+build_initramfs_create_system_image='no'
+build_initramfs_dependencies=(bash cpio git test shift echo mktemp cat rm sed \
+    gzip curl tar grep make)
 
-function build-initramfs() {
-    # Provides the main module scope.
-
-    # region properties
-
-    local _SCOPE='local' && \
-    if [[ $(echo "\"$@\"" | grep --extended-regexp \
-        '(^"| )(-l|--load-environment)("$| )') != '' ]]
-    then
-        local _SCOPE='export'
-    fi
-    # NOTE: Only initialize environment if current scope wasn't set yet.
-    if [ "$UTILS_VERBOSE" == '' ]; then
-        "$_SCOPE" UTILS_VERBOSE='no'
-        "$_SCOPE" _LOAD_ENVIRONMENT='no'
-        "$_SCOPE" _CREATE_SYSTEM_IMAGE='no'
-        local dependencies=(bash cpio git test shift echo mktemp cat rm sed \
-            gzip curl tar grep make)
-        "$_SCOPE" _DEPENDENCIES="${dependencies[*]}"
-    fi
-
-    # endregion
+# endregion
 
-    # region functions
+# region functions
 
-    ## region command line interface
+## region command line interface
 
-    function build_initramfs_print_usage_message() {
-        # Prints a description about how to use this program.
-        logging.cat << EOF
-$__NAME__ provides a generic way to install systemd based remote linux
+function build_initramfs_print_usage_message() {
+    # Prints a description about how to use this program.
+    logging.cat << EOF
+This program provides a generic way to install systemd based remote linux
 initramfs.
 EOF
-    }
-    function build_initramfs_print_usage_examples() {
-        # Prints a description about how to use this program by providing
-        # examples.
-        logging.cat << EOF
-    # Start install progress:
-    # >>> ./build_initramfs.sh
+}
+function build_initramfs_print_usage_examples() {
+    # Prints a description about how to use this program by providing examples.
+    logging.cat << EOF
+# Start install progress:
+# >>> ./build_initramfs.sh
 EOF
-    }
-    function build_initramfs_print_command_line_option_description() {
-        # Prints descriptions about each available command line option.
-        logging.cat << EOF
-    -h --help Shows this help message.
+}
+function build_initramfs_print_command_line_option_description() {
+    # Prints descriptions about each available command line option.
+    logging.cat << EOF
+-h --help Shows this help message.
 
-    -v --verbose Tells you what is going on (default: "$_VERBOSE").
+-v --verbose Tells you what is going on (default: "$build_initramfs_verbose").
 
-    -d --debug Gives you any output from all tools which are used
-        (default: "$_DEBUG").
+-d --debug Gives you any output from all tools which are used
+    (default: "$build_initramfs_debug").
 
-    -l --load-environment Simple load the install arch linux scope without
-        doing anything else.
+-l --load-environment Simple load the install arch linux scope without
+    doing anything else.
 
-    -c --create-system-image Creates a system image file for given path
-        (default: "$_CREATE_SYSTEM_IMAGE").
+-c --create-system-image Creates a system image file for given path
+    (default: "$build_initramfs_create_system_image").
 EOF
-    }
-    function build_initramfs_print_help_message() {
-        # Provides a help message for this module.
-        logging.plain "\nUsage: $0 [options]\n"
-        build_initramfs_print_usage_message "$@"
-        logging.plain '\nExamples:\n'
-        build_initramfs_print_usage_examples "$@"
-        logging.plain -e '\nOption descriptions:\n'
-        build_initramfs_print_command_line_option_description "$@"
-        logging.plain
-    }
-    function build_initramfs_command_line_interface() {
-        # Provides the command line interface and interactive questions.
-        while true; do
-            case "$1" in
-                -h|--help)
-                    shift
-                    build_initramfs_print_help_message "$0"
-                    exit 0
-                    ;;
-                -v|--verbose)
-                    shift
-                    logging.set_commands_log_level debug
-                    logging.set_log_level info
-                    ;;
-                -d|--debug)
-                    shift
-                    _DEBUG='yes'
-                    logging.set_commands_log_level debug
-                    logging.set_log_level debug
-                    ;;
-                -l|--load-environment)
-                    shift
-                    _LOAD_ENVIRONMENT='yes'
-                    ;;
-                -c|--create-system-image)
-                    shift
-                    _CREATE_SYSTEM_IMAGE="$1"
-                    shift
-                    ;;
-
-                '')
-                    shift
-                    break
-                    ;;
-                *)
-                    logging.critical \
-                        "Given argument: \"$1\" is not available.\n"
-                    if [[ "$_SCOPE" == 'local' ]]; then
-                        build_initramfs_print_help_message "$0"
-                    fi
-                    return 1
-            esac
-        done
-        if [[ "$UID" != '0' ]]; then
-            logging.critical \
-                "You have to run this script as \"root\" not as \"${USER}\"."
-            exit 2
-        fi
-        return 0
-    }
-
-    ## endregion
-
-    function build_initramfs_initialize_dracut() {
-        # Downloads and compiles dracut.
-        #
-        # Examples:
-        #
-        # >>> build_initramfs_initialize_dracut
-        # ...
-        mkdir dracut
-        logging.info 'Download and extract dracut.'
-        curl --location \
-            https://www.kernel.org/pub/linux/utils/boot/dracut/dracut-043.tar.gz | \
-            tar --extract --gzip --directory dracut --strip-components 1
-        pushd dracut
-        # NOTE: On virtualbox shared folder symlinks are not allowed.
-        # make the dracut-install binary (dracut-install resolves dependencies etc.)
-        logging.info 'Compiling dracut.'
-        make install/dracut-install
-        # NOTE: We have to copy the binary to current instead of symlinking
-        # them since this feature isn't supported in shared virtual box
-        # machine folders. If symlinks would be available we could simply
-        # use:
-        # >>> make dracut-install
-        cp install/dracut-install dracut-install
-        popd
-        return $?
-    }
-    function build_initramfs_create_qcow2_system() {
-        # Packs current distribution in a qcow2 container.
-        #
-        # Examples:
-        #
-        # >>> build_initramfs_create_qcow2_system
-        # TODO
-        qemu-img create -f qcow2 "${CONTAINER_PATH}" "${QCOW_SIZE}"
-        return $?
-    }
-
-    # endregion
-
-    # region controller
-
-    if [[ "$0" == *"${__NAME__}.sh" ]]; then
-        utils.dependency_check "${_DEPENDENCIES[*]}"
-        build_initramfs_command_line_interface "$@" || return $?
-        logging.info 'Checking dracut.'
-        if ! [[ -d ./dracut ]]; then
-            logging.info "Dracut isn't available yet loading it."
-            build_initramfs_initialize_dracut
-        fi
-        logging.info 'Build initramfs.'
-        logging.info 'Link dnbd3 plugin into dracut modules folder.'
-        local dracut_modules_source='../../dnbd3-rootfs'
-        local dracut_modules_target='dracut/modules.d/90dnbd3-rootfs'
-        if [[ ! -L "$dracut_modules_target" || "$(readlink \
-            "$dracut_modules_target")" != "$dracut_modules_source" ]]
-        then
-            ln --symbolic "$dracut_modules_source" "$dracut_modules_target"
-            # NOTE: If you copy we would have to recompile each binaries every
-            # time.
-            #cp --recursive --force --no-target-directory \
-            #    dnbd3-rootfs/ dracut/modules.d/90dnbd3-rootfs \
-            #    1>"$UTILS_STANDARD_OUTPUT" 2>"$UTILS_ERROR_OUTPUT"
-        fi
-        local loglevel=''
-        if [ "$UTILS_VERBOSE" == 'yes' ]; then
-            loglevel='--verbose'
-        fi
-        local modules='dnbd3-rootfs'
-        if [ "$_DEBUG" == 'yes' ]; then
-            loglevel="$loglevel --stdlog 4"
-            modules="$modules i18n"
-        fi
-        dracut/dracut.sh --local $loglevel --force --modules "$modules" \
-            --no-hostonly /boot/initramfs-test.img
-        logging.info 'All done!'
+}
+function build_initramfs_print_help_message() {
+    # Provides a help message for this module.
+    logging.plain "\nUsage: $0 [options]\n"
+    build_initramfs_print_usage_message "$@"
+    logging.plain '\nExamples:\n'
+    build_initramfs_print_usage_examples "$@"
+    logging.plain -e '\nOption descriptions:\n'
+    build_initramfs_print_command_line_option_description "$@"
+    logging.plain
+}
+function build_initramfs_command_line_interface() {
+    # Provides the command line interface and interactive questions.
+    while true; do
+        case "$1" in
+            -h|--help)
+                shift
+                build_initramfs_print_help_message "$0"
+                exit 0
+                ;;
+            -v|--verbose)
+                shift
+                logging.set_commands_log_level debug
+                logging.set_log_level info
+                ;;
+            -d|--debug)
+                shift
+                build_initramfs_debug='yes'
+                logging.set_commands_log_level debug
+                logging.set_log_level debug
+                ;;
+            -c|--create-system-image)
+                shift
+                build_initramfs_create_system_image="$1"
+                shift
+                ;;
+
+            '')
+                shift
+                break
+                ;;
+            *)
+                logging.critical \
+                    "Given argument: \"$1\" is not available.\n"
+                build_initramfs_print_help_message "$0"
+                return 1
+        esac
+    done
+    if [[ "$UID" != '0' ]]; then
+        logging.critical \
+            "You have to run this script as \"root\" not as \"${USER}\"."
+        exit 2
     fi
     return 0
+}
 
-    # endregion
-
+## endregion
+
+function build_initramfs_initialize_dracut() {
+    # Downloads and compiles dracut.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_initialize_dracut
+    # ...
+    mkdir dracut
+    logging.info 'Download and extract dracut.'
+    curl --location \
+        https://www.kernel.org/pub/linux/utils/boot/dracut/dracut-043.tar.gz | \
+        tar --extract --gzip --directory dracut --strip-components 1
+    pushd dracut
+    # NOTE: On virtualbox shared folder symlinks are not allowed.
+    # NOTE: make the dracut-install binary (dracut-install resolves
+    # dependencies etc.)
+    logging.info 'Compiling dracut.'
+    make install/dracut-install
+    # NOTE: We have to copy the binary to current instead of symlinking them
+    # since this feature isn't supported in shared virtual box machine folders.
+    # If symlinks would be available we could simply use:
+    # >>> make dracut-install
+    cp install/dracut-install dracut-install
+    popd
+    return $?
+}
+function build_initramfs_create_qcow2_system() {
+    # Packs current distribution in a qcow2 container.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_create_qcow2_system
+    # TODO
+    qemu-img create -f qcow2 "${CONTAINER_PATH}" "${QCOW_SIZE}"
+    return $?
 }
 
-# region footer
+# endregion
 
-if [[ "$0" == *"${__NAME__}.sh" || $(echo "$@" | grep --extended-regexp \
-    '(^| )(-l|--load-environment)($| )') ]]
+# region controller
+
+utils.dependency_check "${build_initramfs_dependencies[*]}"
+build_initramfs_command_line_interface "$@"
+logging.info 'Checking dracut.'
+if ! [[ -d ./dracut ]]; then
+    logging.info "Dracut isn't available yet loading it."
+    build_initramfs_initialize_dracut
+fi
+logging.info 'Build initramfs.'
+logging.info 'Link dnbd3 plugin into dracut modules folder.'
+build_initramfs__dracut_modules_source='../../dnbd3-rootfs'
+build_initramfs__dracut_modules_target='dracut/modules.d/90dnbd3-rootfs'
+if [[ ! -L "$build_initramfs__dracut_modules_target" || "$(readlink \
+    "$build_initramfs__dracut_modules_target")" != \
+    "$build_initramfs__dracut_modules_source" ]]
 then
-    "$__NAME__" "$@"
+    ln --symbolic "$build_initramfs__dracut_modules_source" \
+        "$build_initramfs__dracut_modules_target"
+    # NOTE: If you copy we would have to recompile each binaries every time:
+    # >>> cp --recursive --force --no-target-directory \
+    # ...     "$(basename "$build_initramfs__dracut_modules_source")" \
+    # ...     "$build_initramfs__dracut_modules_target"
+fi
+build_initramfs__loglevel=''
+if [ "$build_initramfs_verbose" == 'yes' ]; then
+    build_initramfs__loglevel='--verbose'
+fi
+build_initramfs__modules='dnbd3-rootfs'
+if [ "$build_initramfs_debug" == 'yes' ]; then
+    build_initramfs__loglevel="$build_initramfs__loglevel --stdlog 4"
+    build_initramfs__modules="$build_initramfs__modules i18n"
 fi
+dracut/dracut.sh --local $build_initramfs__loglevel --force --modules \
+    "$build_initramfs__modules" --no-hostonly /boot/initramfs-test.img
+logging.info 'All done!'
 
 # endregion