0eb3a78332
- Implement a CMake script for intelligent merging of configuration files, ensuring only missing keys are added without overwriting existing ones. - Install a template configuration file as an example, preventing overwriting of the original during installation.
146 lines
4.8 KiB
CMake
146 lines
4.8 KiB
CMake
# CMake-Skript für intelligente Konfigurationsdatei-Installation
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# Fügt nur fehlende Keys hinzu, ohne bestehende Konfiguration zu überschreiben
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# Pfade setzen
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set(CONFIG_FILE "/etc/yourpart/daemon.conf")
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# Während der Installation ist CMAKE_SOURCE_DIR das Projekt-Root-Verzeichnis
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# Falls nicht verfügbar, versuchen wir es über CMAKE_CURRENT_LIST_DIR
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if(DEFINED CMAKE_SOURCE_DIR)
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set(TEMPLATE_FILE "${CMAKE_SOURCE_DIR}/daemon.conf")
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else()
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get_filename_component(PROJECT_ROOT "${CMAKE_CURRENT_LIST_DIR}/.." ABSOLUTE)
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set(TEMPLATE_FILE "${PROJECT_ROOT}/daemon.conf")
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endif()
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# Prüfe ob Template existiert
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if(NOT EXISTS "${TEMPLATE_FILE}")
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message(FATAL_ERROR "Template-Datei ${TEMPLATE_FILE} nicht gefunden!")
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endif()
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# Prüfe ob Ziel-Verzeichnis existiert
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if(NOT EXISTS "/etc/yourpart")
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message(STATUS "Erstelle Verzeichnis /etc/yourpart...")
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execute_process(
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COMMAND ${CMAKE_COMMAND} -E make_directory "/etc/yourpart"
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COMMAND_ERROR_IS_FATAL ANY
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)
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endif()
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# Prüfe ob Config-Datei existiert
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if(NOT EXISTS "${CONFIG_FILE}")
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message(STATUS "Konfigurationsdatei existiert nicht, erstelle neue...")
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execute_process(
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COMMAND ${CMAKE_COMMAND} -E copy "${TEMPLATE_FILE}" "${CONFIG_FILE}"
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COMMAND_ERROR_IS_FATAL ANY
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)
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message(STATUS "Neue Konfigurationsdatei erstellt: ${CONFIG_FILE}")
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else()
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message(STATUS "Konfigurationsdatei existiert bereits, prüfe auf fehlende Keys...")
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# Verwende ein Python-Skript für intelligentes Merging
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# (CMake hat keine gute Unterstützung für komplexe String-Manipulation)
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# Erstelle temporäres Python-Skript im Build-Verzeichnis
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set(MERGE_SCRIPT "${CMAKE_CURRENT_BINARY_DIR}/merge-config.py")
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# Erstelle Python-Skript
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file(WRITE "${MERGE_SCRIPT}"
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"#!/usr/bin/env python3
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import sys
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import re
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import os
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def merge_config(template_file, config_file):
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\"\"\"Fügt fehlende Keys aus Template zur Config hinzu, ohne bestehende zu überschreiben\"\"\"
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# Lese bestehende Config
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existing_keys = {}
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existing_lines = []
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if os.path.exists(config_file):
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with open(config_file, 'r') as f:
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for line in f:
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existing_lines.append(line.rstrip())
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# Extrahiere Key=Value Paare
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match = re.match(r'^\\s*([^#=]+?)\\s*=\\s*(.+?)\\s*$', line)
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if match:
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key = match.group(1).strip()
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value = match.group(2).strip()
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existing_keys[key] = value
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# Lese Template
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new_keys = {}
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if not os.path.exists(template_file):
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print(f'Fehler: Template-Datei {template_file} nicht gefunden!', file=sys.stderr)
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return False
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with open(template_file, 'r') as f:
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for line in f:
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# Extrahiere Key=Value Paare
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match = re.match(r'^\\s*([^#=]+?)\\s*=\\s*(.+?)\\s*$', line)
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if match:
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key = match.group(1).strip()
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value = match.group(2).strip()
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new_keys[key] = value
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# Füge fehlende Keys hinzu
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added_count = 0
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for key, value in new_keys.items():
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if key not in existing_keys:
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existing_lines.append(f'{key}={value}')
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print(f'Füge fehlenden Key hinzu: {key}')
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added_count += 1
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# Schreibe aktualisierte Config
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if added_count > 0:
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with open(config_file, 'w') as f:
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for line in existing_lines:
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f.write(line + '\\n')
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print(f'{added_count} neue Keys hinzugefügt')
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else:
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print('Keine neuen Keys hinzugefügt - Konfiguration ist aktuell')
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return True
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print('Verwendung: merge-config.py <template> <config>', file=sys.stderr)
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sys.exit(1)
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template_file = sys.argv[1]
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config_file = sys.argv[2]
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if not merge_config(template_file, config_file):
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sys.exit(1)
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")
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# Setze Ausführungsrechte
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file(CHMOD "${MERGE_SCRIPT}" PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
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# Führe Merge-Skript aus
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execute_process(
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COMMAND python3 "${MERGE_SCRIPT}" "${TEMPLATE_FILE}" "${CONFIG_FILE}"
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RESULT_VARIABLE MERGE_RESULT
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OUTPUT_VARIABLE MERGE_OUTPUT
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ERROR_VARIABLE MERGE_ERROR
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)
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if(NOT MERGE_RESULT EQUAL 0)
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message(WARNING "Fehler beim Mergen der Config: ${MERGE_ERROR}")
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else()
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message(STATUS "${MERGE_OUTPUT}")
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endif()
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endif()
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# Setze korrekte Berechtigungen
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execute_process(
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COMMAND chown yourpart:yourpart "${CONFIG_FILE}"
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COMMAND_ERROR_IS_FATAL FALSE
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)
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execute_process(
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COMMAND chmod 600 "${CONFIG_FILE}"
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COMMAND_ERROR_IS_FATAL FALSE
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)
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message(STATUS "Konfigurationsdatei-Verwaltung abgeschlossen: ${CONFIG_FILE}")
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