First functional release
This commit is contained in:
parent
b9920f9acb
commit
f793ba7bb6
421
configsync.py
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421
configsync.py
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@ -0,0 +1,421 @@
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import os
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import sys
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import subprocess
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import configparser
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import socket
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import datetime
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import shutil
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from pathlib import Path
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import stat
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import pwd
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import grp
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CONFIG_SYNC_VERSION = "1.0.0"
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CONFIG_SYNC_FILE = "/etc/configsync.conf"
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def check_dependencies():
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status = True
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try:
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subprocess.call(["git", "version"], stdout=subprocess.DEVNULL)
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except OSError:
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status = False
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print("git cannot be found on your system!")
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print("Install git: pacman -S git")
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return status
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def print_splash():
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print("---=== CONFIG-SYNC ===---")
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print("Version: " + CONFIG_SYNC_VERSION)
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print()
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print("---=== USAGE ===---")
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print("configsync init")
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print("configsync add <file path>")
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print("configsync remove <file path>")
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print("configsync store")
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print("configsync restore")
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sys.exit(1)
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def validate_or_create_config(config):
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if not os.path.exists(CONFIG_SYNC_FILE):
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print("Creating default configuration file: " + CONFIG_SYNC_FILE)
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config['DEFAULT'] = {}
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config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] = "/opt/configsync/storage"
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config['DEFAULT']['INITIALIZED'] = ""
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config['GIT'] = {}
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config['GIT']['REMOTE_REPOSITORY'] = ""
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config['GIT']['USER'] = "configsync"
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config['GIT']['EMAIL'] = "configsync@" + socket.gethostname()
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config['GIT']['SSHKEY'] = str(Path.home()) + "/.ssh/id_rsa"
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update_config(config)
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else:
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config.read(CONFIG_SYNC_FILE)
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return config
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def get_config():
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config = configparser.ConfigParser()
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config = validate_or_create_config(config)
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return config
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def update_config(config):
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try:
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config.write(open(CONFIG_SYNC_FILE, 'w'))
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except PermissionError as e:
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print("Unable to write config file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write config file! Error: " + str(e))
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sys.exit(1)
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def init_dialog():
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config = get_config()
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print("Welcome to CONFIG-SYNC!")
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print()
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if config['DEFAULT']['INITIALIZED']:
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reinitialize = input("WARNING: CONFIG-SYNC has already been initialized! Do you really want to change the configuration? [y/N]: ")
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if not reinitialize or reinitialize != "y":
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print("Skipping new initialization!")
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sys.exit(0)
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local_path = input("Enter the local storage directory for configuration files [" + config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "]: ")
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if not local_path:
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local_path = config['DEFAULT']['LOCAL_STORAGE_DIRECTORY']
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config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] = local_path
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remote_repo = input("Enter the remote repository url [" + config['GIT']['REMOTE_REPOSITORY'] + "]: ")
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if not remote_repo:
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remote_repo = config['GIT']['REMOTE_REPOSITORY']
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config['GIT']['REMOTE_REPOSITORY'] = remote_repo
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git_ssh_key = input("Enter the path to the ssh key to use [" + config['GIT']['SSHKEY'] + "]: ")
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if not git_ssh_key:
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git_ssh_key = config['GIT']['SSHKEY']
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config['GIT']['SSHKEY'] = git_ssh_key
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git_user = input("Enter the git user name (displayname) [" + config['GIT']['USER'] + "]: ")
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if not git_user:
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git_user = config['GIT']['USER']
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config['GIT']['USER'] = git_user
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git_email = input("Enter the git user email address [" + config['GIT']['EMAIL'] + "]: ")
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if not git_email:
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git_email = config['GIT']['EMAIL']
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config['GIT']['EMAIL'] = git_email
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config['DEFAULT']['INITIALIZED'] = "True"
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update_config(config)
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def create_initialization_file(path):
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try:
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with open(path + "/configsync.info", mode='w') as file:
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file.write('CONFIG-SYNC Repo initialized: %s.\n' % ( datetime.datetime.now()))
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except PermissionError as e:
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print("Unable to write initialization file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write initialization file! Error: " + str(e))
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sys.exit(1)
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try:
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open(path + "/configsync.db", mode='a').close()
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except PermissionError as e:
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print("Unable to write database file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write database file! Error: " + str(e))
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sys.exit(1)
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def add_file_to_db(file_path):
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config = get_config()
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try:
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insert = True
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with open(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "/configsync.db", "r+") as search:
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for line in search:
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line = line.rstrip() # remove '\n' at end of line
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if file_path == line:
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insert = False
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if insert:
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with open(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "/configsync.db", mode='a') as file:
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file.write('%s\n' % (file_path))
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except PermissionError as e:
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print("Unable to write db file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write db file! Error: " + str(e))
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sys.exit(1)
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def delete_file_from_db(file_path):
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config = get_config()
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try:
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with open(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "/configsync.db", "r+") as search:
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lines = search.readlines()
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search.seek(0)
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for line in lines:
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if line.rstrip() != file_path:
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search.write(line.rstrip() + "\n")
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search.truncate()
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except PermissionError as e:
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print("Unable to write db file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write db file! Error: " + str(e))
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sys.exit(1)
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def setup_git_ssh_environment():
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config = get_config()
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os.environ['GIT_SSH_COMMAND'] = "ssh -i " + config['GIT']['SSHKEY']
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def git_is_repo(path):
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return subprocess.call(["git", "branch"], stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL, cwd=path) == 0
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def git_set_author(path, user, email):
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status = subprocess.call(["git", "config", "user.name", user], stderr=subprocess.STDOUT, stdout=subprocess.DEVNULL, cwd=path) == 0
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status |= subprocess.call(["git", "config", "user.email", email], stderr=subprocess.STDOUT, stdout=subprocess.DEVNULL, cwd=path) == 0
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return status
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def git_set_upstream(path, remote_url):
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# make sure that remote origin does not exist
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status = subprocess.call(["git", "remote", "rm", "origin"], stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL, cwd=path) == 0
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# now add new origin
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status |= subprocess.call(["git", "remote", "add", "origin", remote_url], cwd=path) == 0
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return status
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def git_init_repo(path):
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status = subprocess.call(["git", "init"], cwd=path) == 0
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return status
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def git_push(path, message = "configuration update"):
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status = subprocess.call(["git", "add", "-A"], cwd=path) == 0
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status |= subprocess.call(["git", "commit", "-a", "-m", message], cwd=path) == 0
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status |= subprocess.call(["git", "push", "-u", "origin", "master"], cwd=path) == 0
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return status
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def git_pull(path):
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status = subprocess.call(["git", "pull", "origin", "master"], cwd=path) == 0
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return status
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def git_check_status(status):
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config = get_config()
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if not status:
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print("FATAL: Git operation failed! Repository has to be recovered manually!")
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print("FATAL: Repository path: " + config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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sys.exit(1)
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def init_local_repo():
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config = get_config()
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print("Setting up local repository.")
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if not os.path.exists(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY']):
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print("Creating new directory: " + config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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try:
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os.makedirs(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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except OSError as e:
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print("Failed to create local repository directory: " + e.strerror)
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sys.exit(1)
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# init git repo
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if not git_is_repo(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY']):
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git_init_repo(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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git_check_status(git_set_author(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'], config['GIT']['USER'], config['GIT']['EMAIL']))
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git_check_status(git_set_upstream(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'], config['GIT']['REMOTE_REPOSITORY']))
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setup_git_ssh_environment()
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git_check_status(git_pull(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY']))
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create_initialization_file(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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git_check_status(git_push(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'], "configsync initialized"))
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git_check_status(git_pull(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY']))
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def add_file(filepath):
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config = get_config()
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abs_path = os.path.abspath(filepath)
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if not os.path.exists(abs_path):
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print("Invalid file, skipping!")
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sys.exit(1)
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else:
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print("Adding '" + abs_path + "' to CONFIG-SYNC...")
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local_path = config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + abs_path
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if os.path.exists(local_path):
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print("File is already registered to CONFIG-SYNC, skipping!")
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sys.exit(1)
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else:
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target_directory = os.path.abspath(os.path.join(local_path, os.pardir))
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if not os.path.exists(target_directory):
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os.makedirs(target_directory)
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file_stat = os.stat(abs_path)
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file_permissions = file_stat[stat.ST_MODE]
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file_owner = file_stat[stat.ST_UID]
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file_group = file_stat[stat.ST_GID]
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file_owner_name = pwd.getpwuid(file_owner).pw_name
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file_group_name = grp.getgrgid(file_group).gr_name
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try:
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with open(local_path + ".cfsinfo", mode='w') as file:
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file.write('%s;%s;%s;%s;%s' % (file_permissions, file_owner, file_group, file_owner_name, file_group_name))
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except PermissionError as e:
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print("Unable to write stat file! Error: " + e.strerror)
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sys.exit(1)
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except Exception as e:
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print("Unable to write stat file! Error: " + str(e))
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sys.exit(1)
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shutil.copy2(abs_path, local_path)
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os.chown(local_path, file_owner, file_group)
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os.remove(abs_path)
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os.symlink(local_path, abs_path)
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os.chown(abs_path, file_owner, file_group, follow_symlinks=False)
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add_file_to_db(abs_path)
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print("File added to CONFIG-SYNC!")
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print("Use configsync store to push the file to the remote repository!")
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def remove_file(filepath):
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config = get_config()
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abs_path = os.path.abspath(filepath)
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local_path = config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + abs_path
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if not os.path.exists(local_path):
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print("File not registered to CONFIG-SYNC, skipping!")
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sys.exit(1)
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else:
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print("Removing '" + abs_path + "' from CONFIG-SYNC...")
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target_directory = os.path.abspath(os.path.join(abs_path, os.pardir))
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if not os.path.exists(target_directory):
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os.makedirs(target_directory)
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if os.path.exists(abs_path):
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confirmed = input("Do you really want to override the local file '" + abs_path + "'? [y/N]: ")
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if not confirmed or confirmed != "y":
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print("Skipping removal process!")
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sys.exit(0)
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else:
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os.remove(abs_path)
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shutil.copy2(local_path, abs_path)
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file_stat = os.stat(local_path)
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file_permissions = file_stat[stat.ST_MODE]
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file_owner = file_stat[stat.ST_UID]
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file_group = file_stat[stat.ST_GID]
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os.chown(abs_path, file_owner, file_group)
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os.chmod(abs_path, file_permissions)
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os.remove(local_path)
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os.remove(local_path + ".cfsinfo")
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delete_file_from_db(abs_path)
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print("File removed from CONFIG-SYNC!")
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print("Use configsync store to push the file to the remote repository!")
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def store():
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config = get_config()
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setup_git_ssh_environment()
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git_push(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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def update_local_metadata():
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config = get_config()
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with open(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "/configsync.db", "r") as search:
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for line in search:
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abs_path = line.rstrip() # remove '\n' at end of line
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local_path = config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + abs_path
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if not os.path.exists(local_path):
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print("Invalid file in database, skipping!")
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else:
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with open(local_path + ".cfsinfo", "r") as metadata_file:
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metadata_string = metadata_file.readline().rstrip()
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metadata = metadata_string.split(";")
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file_permissions = int(metadata[0])
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file_owner = int(metadata[1])
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file_group = int(metadata[2])
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os.chmod(local_path, file_permissions)
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os.chown(local_path, file_owner, file_group)
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def restore():
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config = get_config()
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setup_git_ssh_environment()
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git_pull(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'])
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update_local_metadata()
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confirmed = input("Do you really want to restore files from the repository? Local files will be overwritten! [y/N]: ")
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if not confirmed or confirmed != "y":
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print("Skipping restore process!")
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sys.exit(0)
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else:
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with open(config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + "/configsync.db", "r") as search:
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for line in search:
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abs_path = line.rstrip() # remove '\n' at end of line
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local_path = config['DEFAULT']['LOCAL_STORAGE_DIRECTORY'] + abs_path
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if not os.path.exists(local_path):
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print("Invalid file, skipping!")
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else:
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target_directory = os.path.abspath(os.path.join(abs_path, os.pardir))
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if not os.path.exists(target_directory):
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os.makedirs(target_directory)
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if os.path.exists(abs_path):
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os.remove(abs_path)
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os.symlink(local_path, abs_path)
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file_stat = os.stat(local_path)
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file_owner = file_stat[stat.ST_UID]
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file_group = file_stat[stat.ST_GID]
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os.chown(abs_path, file_owner, file_group, follow_symlinks=False)
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def main(argv):
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if not check_dependencies():
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sys.exit(1)
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if len(argv) == 2:
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arg = argv[1]
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if arg == "init":
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init_dialog()
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init_local_repo()
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sys.exit(0)
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elif arg == "store":
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store()
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elif arg == "restore":
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restore()
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else:
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print_splash()
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elif len(argv) == 3:
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arg = argv[1]
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config_file = argv[2]
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if arg == "add":
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add_file(config_file)
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elif arg == "remove":
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remove_file(config_file)
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else:
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print_splash()
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else:
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print_splash()
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if __name__ == "__main__":
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main(sys.argv)
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