mirror of
https://codeberg.org/puppe/mpbackup.git
synced 2025-12-19 21:42:17 +01:00
90 lines
2.4 KiB
Ruby
90 lines
2.4 KiB
Ruby
#!/usr/bin/env ruby
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require 'io/console'
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require 'optparse'
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require 'pathname'
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require 'yaml'
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ENV.delete('RESTIC_REPOSITORY')
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ENV.delete('RESTIC_PASSWORD')
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DEFAULT_CONFIG_FILE = Pathname.new('/etc/mpbackup.yaml')
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options = {}
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OptionParser.new do |parser|
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parser.on("-f CONFIG_FILE", "--config-file CONFIG_FILE", "Path to config file") do |v|
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options[:config_file] = v
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end
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parser.on("-h", "--help", "Prints this help") do
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puts parser
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exit
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end
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end.parse!
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if options[:config_file]
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config_file = Pathname.new(options[:config_file])
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else
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config_file = DEFAULT_CONFIG_FILE
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end
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if !Pathname.new(config_file).exist? then
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STDERR.puts "Config file #{config_file} has not been found!"
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exit 1
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end
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def do_backup(config)
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ENV['RESTIC_REPOSITORY'] = config['repository']
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ENV['RESTIC_PASSWORD'] = STDIN.getpass('Please put in your restic password: ')
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puts "Backing up with restic…"
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# https://restic.readthedocs.io/en/latest/040_backup.html#including-and-excluding-files
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exclude = config.dig('backup', 'exclude')&.flat_map{|e| ['--exclude', e]} || []
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paths = config.dig('backup', 'paths') || []
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backup_command = ['restic', 'backup', *exclude, *paths]
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puts("Command: #{backup_command.join(' ')}")
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system(*backup_command)
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if $?.exitstatus > 0
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STDERR.puts 'Failed to do backup.'
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exit 1
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end
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puts 'Checking restic repo…'
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check_command = ['restic', 'check']
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puts("Command: #{check_command.join(' ')}")
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system(*check_command)
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if $?.exitstatus > 0
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STDERR.puts "Checking restic repository #{ENV['RESTIC_REPOSITORY']} failed."
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exit 1
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end
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puts "Deleting unnecessary snapshots…"
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flags = config['forget'].filter{|k,v| k != 'enable'}
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flags = flags.flat_map{|k,v| ['--' + k, v.to_s]}
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forget_command = ['restic', 'forget'] + flags
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puts("Command: #{forget_command.join(' ')}")
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system(*forget_command)
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# Data will only be deleted when `restic prune` is executed or when
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# `restic forget` is called with `--prune`.
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if $?.exitstatus > 0
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STDERR.puts "Forgetting snapshots failed."
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exit 1
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end
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ENV.delete('RESTIC_REPOSITORY')
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ENV.delete('RESTIC_PASSWORD')
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end
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configs = YAML.load_stream(File.open(config_file))
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if ARGV.empty?
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puts "No configuration name has been given. Using the first configuration."
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do_backup(configs[0])
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else
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ARGV.each do |config_name|
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configs.each do |config|
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if config_name == config['name']
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do_backup(config)
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end
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end
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end
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end
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