Class: Config

Inherits:
Object
  • Object
show all
Defined in:
lib/config.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Config

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity, Metrics/MethodLength



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# File 'lib/config.rb', line 18

def initialize(args={}) # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity, Metrics/MethodLength
  set_values(args)
  check_values
end

Instance Attribute Details

#database_url ⇒ Object (readonly)

Returns the value of attribute database_url.



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# File 'lib/config.rb', line 5

def database_url
  @database_url
end

#destination_db_url ⇒ Object (readonly)

Returns the value of attribute destination_db_url.



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# File 'lib/config.rb', line 5

def destination_db_url
  @destination_db_url
end

#dry_run ⇒ Object (readonly)

Returns the value of attribute dry_run.



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# File 'lib/config.rb', line 5

def dry_run
  @dry_run
end

#files_location ⇒ Object (readonly)

Returns the value of attribute files_location.



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# File 'lib/config.rb', line 5

def files_location
  @files_location
end

#if_backup ⇒ Object (readonly)

Returns the value of attribute if_backup.



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# File 'lib/config.rb', line 5

def if_backup
  @if_backup
end

#limit ⇒ Object (readonly)

Returns the value of attribute limit.



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# File 'lib/config.rb', line 5

def limit
  @limit
end

#move_logs ⇒ Object (readonly)

Returns the value of attribute move_logs.



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# File 'lib/config.rb', line 5

def move_logs
  @move_logs
end

#org_id ⇒ Object (readonly)

Returns the value of attribute org_id.



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# File 'lib/config.rb', line 5

def org_id
  @org_id
end

#remove_orphans ⇒ Object (readonly)

Returns the value of attribute remove_orphans.



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# File 'lib/config.rb', line 5

def remove_orphans
  @remove_orphans
end

#repo_id ⇒ Object (readonly)

Returns the value of attribute repo_id.



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# File 'lib/config.rb', line 5

def repo_id
  @repo_id
end

#threshold ⇒ Object (readonly)

Returns the value of attribute threshold.



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# File 'lib/config.rb', line 5

def threshold
  @threshold
end

#user_id ⇒ Object (readonly)

Returns the value of attribute user_id.



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# File 'lib/config.rb', line 5

def user_id
  @user_id
end

Instance Method Details

#abort_message(intro) ⇒ Object 



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# File 'lib/config.rb', line 128

def abort_message(intro)
  "\n#{intro} Example usage:\n"+
  "\n  $ bin/travis_backup 'postgres://my_database_url' --threshold 6\n" +
  "\nor using in code:\n" +
  "\n  Backup.new(database_url: 'postgres://my_database_url', threshold: 6)\n" +
  "\nYou can also set it using environment variables or configuration files.\n"
end

#argv_options ⇒ Object 



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# File 'lib/config.rb', line 136

def argv_options
  argv_copy = ARGV.clone
  options = {}
  OptionParser.new do |opt|
    opt.on('-b', '--backup') { |o| options[:if_backup] = o }
    opt.on('-d', '--dry_run') { |o| options[:dry_run] = o }
    opt.on('-l', '--limit X') { |o| options[:limit] = o.to_i }
    opt.on('-t', '--threshold X') { |o| options[:threshold] = o.to_i }
    opt.on('-f', '--files_location X') { |o| options[:files_location] = o }
    opt.on('-u', '--user_id X') { |o| options[:user_id] = o.to_i }
    opt.on('-r', '--repo_id X') { |o| options[:repo_id] = o.to_i }
    opt.on('-o', '--org_id X') { |o| options[:org_id] = o.to_i }
    opt.on('--move_logs') { |o| options[:move_logs] = o }
    opt.on('--remove_orphans') { |o| options[:remove_orphans] = o }
    opt.on('--destination_db_url X') { |o| options[:destination_db_url] = o }
  end.parse!

  options[:database_url] = ARGV.shift if ARGV[0]
  argv_copy.each do |arg|
    ARGV.push(arg)
  end
  options
end

#check_values ⇒ Object 



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# File 'lib/config.rb', line 107

def check_values
  if !@move_logs && !@remove_orphans && !@threshold
    message = abort_message("Please provide the threshold argument. Data younger than it will be omitted. " +
      "Threshold defines number of months from now.")
    abort message
  end

  if !@database_url
    message = abort_message("Please provide proper database URL.")
    abort message
  end

  if (@move_logs && !@destination_db_url)
    abort "\nFor moving logs you need to specify your destination database. Example usage:\n" +
    "\n  $ bin/travis_backup 'postgres://source_url' --move_logs --destination_db_url 'postgres://destination_url'\n" +
    "\nor using in code:\n" +
    "\n  Backup.new(database_url: 'postgres://source_url', destination_db_url: 'postgres://destination_url', move_logs: true)\n" +
    "\nYou can also set it using environment variables or configuration files.\n"  
  end
end

#first_not_nil(*arr) ⇒ Object 



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# File 'lib/config.rb', line 160

def first_not_nil(*arr)
  arr.compact.first
end

#set_values(args) ⇒ Object 



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# File 'lib/config.rb', line 23

def set_values(args)
  config = yaml_load('config/settings.yml')
  connection_details = yaml_load('config/database.yml')
  argv_opts = argv_options
  @if_backup = first_not_nil(
    args[:if_backup],
    argv_opts[:if_backup],
    ENV['IF_BACKUP'],
    config.dig('backup', 'if_backup'),
    true
  )
  @dry_run = first_not_nil(
    args[:dry_run],
    argv_opts[:dry_run],
    ENV['BACKUP_DRY_RUN'],
    config.dig('backup', 'dry_run'),
    false
  )
  @limit = first_not_nil(
    args[:limit],
    argv_opts[:limit],
    ENV['BACKUP_LIMIT'],
    config.dig('backup', 'limit'),
    1000
  )
  @threshold = first_not_nil(
    args[:threshold],
    argv_opts[:threshold],
    ENV['BACKUP_THRESHOLD'],
    config.dig('backup', 'threshold')
  )
  @files_location = first_not_nil(
    args[:files_location],
    argv_opts[:files_location],
    ENV['BACKUP_FILES_LOCATION'],
    config.dig('backup', 'files_location'),
    './dump'
  )
  @database_url = first_not_nil(
    args[:database_url],
    argv_opts[:database_url],
    ENV['DATABASE_URL'],
    connection_details.dig(ENV['RAILS_ENV'])
  )
  @user_id = first_not_nil(
    args[:user_id],
    argv_opts[:user_id],
    ENV['BACKUP_USER_ID'],
    config.dig('backup', 'user_id')
  )
  @repo_id = first_not_nil(
    args[:repo_id],
    argv_opts[:repo_id],
    ENV['BACKUP_REPO_ID'],
    config.dig('backup', 'repo_id')
  )
  @org_id = first_not_nil(
    args[:org_id],
    argv_opts[:org_id],
    ENV['BACKUP_ORG_ID'],
    config.dig('backup', 'org_id')
  )
  @move_logs = first_not_nil(
    args[:move_logs],
    argv_opts[:move_logs],
    ENV['BACKUP_MOVE_LOGS'],
    config.dig('backup', 'move_logs'),
    false
  )
  @remove_orphans = first_not_nil(
    args[:remove_orphans],
    argv_opts[:remove_orphans],
    ENV['BACKUP_REMOVE_ORPHANS'],
    config.dig('backup', 'remove_orphans'),
    false
  )
  @destination_db_url = first_not_nil(
    args[:destination_db_url],
    argv_opts[:destination_db_url],
    ENV['BACKUP_DESTINATION_DB_URL'],
    connection_details.dig(ENV['RAILS_ENV'], 'destination')
  )
end

#yaml_load(url) ⇒ Object 



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# File 'lib/config.rb', line 164

def yaml_load(url)
  begin
    YAML.load(File.open(url))
  rescue => e
    {}
  end
end