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+#
+# Copyright (c) Siemens AG, 2025
+#
+# Authors:
+# Quirin Gylstorff <quirin.gylstorff@siemens.com>
+#
+# SPDX-License-Identifier: MIT
+#
+
+inherit dpkg-raw
+
+FILESPATH:append := ":${FILE_DIRNAME}/files"
+
+DPKG_ARCH = "all"
+
+DRACUT_MODULE_SETUP = "module-setup.sh"
+SRC_URI += "file://${DRACUT_MODULE_SETUP}.tmpl"
+
+DRACUT_MODULE_NO ??= "50"
+DRACUT_MODULE_NAME ?= "${@ d.getVar('PN')[7:] if d.getVar('PN').startswith('dracut-') else d.getVAR('PN')}"
+
+DEBIAN_DEPENDS = "dracut-core"
+DRACUT_MODULE_PATH = "${D}/usr/lib/dracut/modules.d/${DRACUT_MODULE_NO}${DRACUT_MODULE_NAME}/"
+
+DRACUT_REQUIRED_BINARIES ??= ""
+DRACUT_MODULE_DEPENDENCIES ??= ""
+DRACUT_CHECK_CONTENT_FILE_NAME ??= ""
+DRACUT_DEPENDS_CONTENT_FILE_NAME ??= ""
+DRACUT_CMDLINE_CONTENT_FILE_NAME ??= ""
+DRACUT_INSTALL_CONTENT_FILE_NAME ??= ""
+DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME ??= ""
+
+def add_file_if_variable_is_set(d, variable_name, prefix):
+ variable = d.getVar(variable_name) or ''
+ if variable:
+ return f"{prefix}{variable}"
+ return ''
+
+def replace_marker_with_file_content(template_file, content_file, marker):
+ with open(template_file, 'r') as template_fd:
+ tmpl_content = template_fd.read()
+
+ with open(content_file, 'r') as content_fd:
+ content = content_fd.read()
+
+ new_tpml_content = tmpl_content.replace(marker, content)
+ with open(template_file, 'w') as tmpl_fd:
+ tmpl_fd.write(new_tpml_content)
+
+SRC_URI += "${@ add_file_if_variable_is_set(d, 'DRACUT_CHECK_CONTENT_FILE_NAME', 'file://')} \
+ ${@ add_file_if_variable_is_set(d, 'DRACUT_DEPENDS_CONTENT_FILE_NAME', 'file://')} \
+ ${@ add_file_if_variable_is_set(d, 'DRACUT_CMDLINE_CONTENT_FILE_NAME', 'file://')} \
+ ${@ add_file_if_variable_is_set(d, 'DRACUT_INSTALL_CONTENT_FILE_NAME', 'file://')} \
+ ${@ add_file_if_variable_is_set(d, 'DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME', 'file://')}"
+
+TEMPLATE_FILES:append = " \
+ ${DRACUT_MODULE_SETUP}.tmpl \
+ "
+
+TEMPLATE_VARS:append = " \
+ DRACUT_REQUIRED_BINARIES \
+ DRACUT_MODULE_DEPENDENCIES \
+ "
+python do_add_additional_dracut_configuration() {
+ workdir = os.path.normpath(d.getVar('WORKDIR'))
+ module_setup = d.getVar('DRACUT_MODULE_SETUP')
+ module_setup_tpml = f"{module_setup}.tmpl"
+ content_file_name_to_marker = {
+ "DRACUT_CHECK_CONTENT_FILE_NAME" : "# ISAR_DRACUT_CHECK",
+ "DRACUT_DEPENDS_CONTENT_FILE_NAME" : "# ISAR_DRACUT_DEPENDS",
+ "DRACUT_CMDLINE_CONTENT_FILE_NAME" : "# ISAR_DRACUT_CMDLINE",
+ "DRACUT_INSTALL_CONTENT_FILE_NAME" : "# ISAR_DRACUT_INSTALL",
+ "DRACUT_INSTALLKERNEL_CONTENT_FILE_NAME" : "# ISAR_DRACUT_KERNELINSTALL"
+ }
+
+ for var_name, marker in content_file_name_to_marker.items():
+ file_name = d.getVar(var_name) or ''
+ if file_name:
+ replace_marker_with_file_content(f"{workdir}/{module_setup_tpml}",
+ f"{workdir}/{file_name}", marker)
+}
+addtask add_additional_dracut_configuration before do_transform_template after do_patch
+
+do_install[cleandirs] += "${DRACUT_MODULE_PATH}"
+do_install:append() {
+ install -m 770 ${WORKDIR}/${DRACUT_MODULE_SETUP} ${DRACUT_MODULE_PATH}
+
+}
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+#!/bin/bash
+
+# called by dracut
+check() {
+
+ # If the binary(s) requirements are not fulfilled the module can't be installed.
+ require_binaries \
+ ${DRACUT_REQUIRED_BINARIES} \
+ || return 1
+ # ISAR_DRACUT_CHECK
+ return 0
+
+}
+
+# Module dependency requirements.
+depends() {
+ echo "${DRACUT_MODULE_DEPENDENCIES}"
+ # ISAR_DRACUT_DEPENDS
+ return 0
+
+}
+installkernel() {
+ # ISAR_DRACUT_KERNELINSTALL
+ return 0
+}
+
+cmdline() {
+ # ISAR_DRACUT_CMDLINE
+ return 0
+}
+
+install() {
+ for executable in ${DRACUT_REQUIRED_BINARIES}; do
+ if exec_path=$(command -v $executable 2>/dev/null); then
+ inst_binary "$exec_path"
+ else
+ echo "(ERROR): Unable to copy $executable" >&2
+ exit 1
+ fi
+ done
+ # ISAR_DRACUT_INSTALL
+}