Class: Nfsadmin::Tasks

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

Class Method Summary collapse

Class Method Details

.create_share(exportsfile, location, address, options, createlocation, user, group, mode) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 95

def self.create_share(exportsfile, location, address, options, createlocation, user, group, mode)
  if location.nil?
    fail 'Location must be specified'
  else
    fail 'Location must be an absolute path' unless (Pathname.new(location)).absolute?
  end
  if address.nil?
    fail 'Address must be specified'
  end
  if options.nil?
    fail 'Options must be specified'
  end
  if createlocation
    FileUtils::mkdir_p location unless File.directory?(location)
    FileUtils::chown user, nil, location unless user.nil?
    FileUtils::chown nil, group, location unless group.nil?
    FileUtils::chmod mode, location unless mode.nil?
  end
  share = { :location => location,
            :acl => [{
                :address => address,
                :options => options
            }]
  }
  shares = get_shares(exportsfile)
  existingshare = shares.find { |s| s[:location] == location }
  if existingshare.nil?
    shares << share
    write_exports(exportsfile, shares)
    puts 'Share created'
  else
    puts 'Share already exists. Use nfsadmin export modify to change it. Skipping'
  end
end

.delete_share(exportsfile, location) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 130

def self.delete_share(exportsfile, location)
  if location.nil?
    fail 'Location must be specified with -l or --location='
  end
  shares = get_shares(exportsfile)
  share = shares.find { |share| share[:location] == location }
  if share.nil?
    fail "#{location} not found"
  else
    shares.delete(share)
    write_exports(exportsfile, shares)
    puts "Deleted #{location}"
  end
end

.get_share(exportsfile, location) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 145

def self.get_share(exportsfile, location)
  if location.nil?
    fail 'Location must be specified with -l or --location='
  end
  shares = get_shares(exportsfile)
  shares.find { |share| share[:location] == location }
end

.get_shares(exportsfile) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 20

def self.get_shares(exportsfile)
  shares = []
  location = ''
  begin
    file = File.open(exportsfile, 'r')
  rescue
    fail 'No exports configuration could be found'
  end
  file.readlines.each do |line|
    share = {}
    acl = []
    parts = line.split
    parts.each do |part|
      entry = {}
      if (Pathname.new(part)).absolute?
        location = part
      else
        subparts = part.split('(')
        entry[:address] = subparts[0]
        entry[:options] = subparts[1].sub!(/\)/, '')
        acl << entry
      end
    end
    stat = File.stat(location)
    share[:location] = location
    share[:owner] = Etc.getpwuid(stat.uid).name
    share[:group] = Etc.getgrgid(stat.gid).name
    share[:mode] = stat.mode.to_s(8)[-3,3]
    share[:acl] = acl
    shares << share
  end
  file.close
  return shares
end

.list_shares(exportsfile, output_type) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 73

def self.list_shares(exportsfile, output_type)
  exports = get_shares(exportsfile)
  if output_type.downcase == 'text'
    # Output plain text
    exports.each do |share|
      printf('%-40s', share[:location])
      share[:acl].each do |acl|
        print acl[:address] + '(' + acl[:options] + ')' + ' '
      end
      print(share[:owner]) unless share[:owner].nil?
      print(':' + share[:group] + ' ') unless share[:group].nil?
      print(share[:mode] + "\n")
    end
    STDOUT.flush
  elsif output_type.downcase == 'json'
    # Output JSON
    puts JSON.generate({ :exports => exports })
  else
    fail "#{output_type} is an invalid output format. Must one of: text, json"
  end
end

.print_share(exportsfile, location, output_type) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 153

def self.print_share(exportsfile, location, output_type)
  share = get_share(exportsfile, location)
  if share.nil?
    fail 'share not found'
  end
  if output_type.downcase == 'text'
    printf('%-40s', share[:location])
    share[:acl].each do |acl|
      print acl[:address] + '(' + acl[:options] + ')' + ' '
    end
    print "\n"
    STDOUT.flush
  elsif output_type.downcase == 'json'
    puts JSON.generate(share)
  else
    fail "#{output_type} is an invalid output format. Must one of: text, json"
  end
end

.reload_config ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 188

def self.reload_config
  system "#{@service_cmd} nfs reload"
end

.restart_service ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 184

def self.restart_service
  system "#{@service_cmd} nfs restart"
end

.show_status ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 172

def self.show_status
  system "#{@service_cmd} nfs status"
end

.start_service ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 176

def self.start_service
  system "#{@service_cmd} nfs start"
end

.stop_service ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 180

def self.stop_service
  system "#{@service_cmd} nfs stop"
end

.write_exports(exportsfile, exports) ⇒ Object 



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# File 'lib/nfsadmin/tasks.rb', line 55

def self.write_exports(exportsfile, exports)
  begin
    file = File.open(exportsfile, File::WRONLY|File::CREAT)
    file.truncate(0)
  rescue
    fail "Could not write to exports configuration #{exportsfile}"
  end
  exports.each do |share|
    file.print(share[:location] + '   ')
    share[:acl].each do |acl|
      file.print acl[:address].to_s + '(' + acl[:options].to_s + ')' + ' '
    end
    file.print "\n"
  end
  file.flush
  file.close
end