Class: Six::Repositories::Rsync::Lib

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

Constant Summary collapse

PROTECTED = 
false
WINDRIVE = 
/\"(\w)\:/
DEFAULT_CONFIG = 
{:hosts => [], :exclude => []}.to_yaml
DEFAULT_TIMEOUT = 
60
PARAMS = 
if PROTECTED
  "--dry-run --times -O --no-whole-file -r --delete --progress -h --exclude=.rsync"
else
  "--times -O --no-whole-file -r --delete --progress -h --exclude=.rsync"
end

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base = nil, logger = nil) ⇒ Lib

Returns a new instance of Lib.



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# File 'lib/six/rsync/lib.rb', line 29

def initialize(base = nil, logger = nil)
  @rsync_dir = nil
  @rsync_work_dir = nil
  @path = nil
  @stats = false
  @verbose = true
  @logger = logger

  @repos_local = {:pack => Hash.new, :wd => Hash.new, :version => 0}
  @repos_remote = {:pack => Hash.new, :wd => Hash.new, :version => 0}

  if base.is_a?(Rsync::Base)
    @rsync_dir = base.repo.path
    @rsync_work_dir = base.dir.path if base.dir
  elsif base.is_a?(Hash)
    @rsync_dir = base[:repository]
    @rsync_work_dir = base[:working_directory]
  end

  etc = File.join(TOOLS_PATH, 'etc')
  FileUtils.mkdir_p etc
  fstab = File.join(etc, 'fstab')
  str = ""
  str = File.open(fstab) {|file| file.read} if File.exists?(fstab)
  unless str[/cygdrive/]
    str += "\nnone /cygdrive cygdrive user,noacl,posix=0 0 0\n"
    File.open(fstab, 'w') {|file| file.puts str}
  end
end

Instance Attribute Details

#verbose ⇒ Object

Returns the value of attribute verbose.



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# File 'lib/six/rsync/lib.rb', line 18

def verbose
  @verbose
end

Instance Method Details

#add(file) ⇒ Object

TODO: WIP



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# File 'lib/six/rsync/lib.rb', line 220

def add(file)
  @logger.error "Please use commit instead!"
  return
  @logger.info "Adding #{file}"
  if (file == ".")
    load_repos(:remote)
    @logger.info "Calculating Checksums..."
    ar = Dir[File.join(@rsync_work_dir, '/**/*')]

    change = false
    i = 0
    ar.each do |file|
      i += 1
      unless file[/\.gz\Z/]
        relative = file.clone
        relative.gsub!(@rsync_work_dir, '')
        relative.gsub!(/\A[\\|\/]/, '')

        checksum = md5(file)
        if checksum != @repos_remote[:wd][relative]
          change = true
          @logger.info "Packing #{i}/#{ar.size}: #{file}"
          gzip(file)
          @repos_remote[:wd][relative] = checksum
          @repos_remote[:pack]["#{relative}.gz"] = md5("#{file}.gz")
          FileUtils.mv("#{file}.gz", pack_path("#{relative}.gz"))
        end
      end
    end
    save_repos if change
  else

  end
end

#clone(repository, name, opts = {}) ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 113

def clone(repository, name, opts = {})
  @path = opts[:path] || '.'
  @rsync_work_dir = opts[:path] ? File.join(@path, name) : name

  # TODO: Solve logger mess completely.
  @logger = opts[:log] if opts[:log]

  case repository
  when Array
    config[:hosts] += repository
  when String
    config[:hosts] << repository
  end

  begin
    init

    # TODO: Eval move to update?
    arr_opts = []
    arr_opts << "-I" if opts[:force]
    begin
      update('', arr_opts)
    rescue RsyncError
      @logger.error "Unable to sucessfully update, aborting..."
      @logger.debug "#{$!}"
      FileUtils.rm_rf @rsync_work_dir if File.exists?(@rsync_work_dir)
    end
  rescue RsyncError
    @logger.error "Unable to initialize"
    @logger.debug "#{$!}"
  end

  opts[:bare] ? {:repository => @rsync_work_dir} : {:working_directory => @rsync_work_dir}
end

#commit ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 255

def commit
  @logger.info "Committing changes on #{@rsync_work_dir}"
  @config = load_config
  unless @config
    @logger.error "Not an Rsync repository!"
    return
  end

  unless config[:hosts].size > 0
    @logger.error "No hosts configured!"
    return
  end

  load_repos(:local)
  load_repos(:remote)

  @logger.info "Calculating Checksums..."
  @repos_local[:wd] = calc_sums(:wd)
  # Added or Changed files
  ar = Dir[File.join(@rsync_work_dir, '/**/*')]

  change = false
  i = 0
  @repos_local[:wd].each_pair do |key, value|
    i += 1
    if value != @repos_remote[:wd][key]
      change = true
      @logger.info "Packing #{i}/#{@repos_local[:wd].size}: #{key}"
      file = File.join(@rsync_work_dir, key)
      file[REGEX_FOLDER]
      folder = $1
      folder.gsub!(@rsync_work_dir, '')
      gzip(file)
      @repos_local[:pack]["#{key}.gz"] = md5("#{file}.gz")
      FileUtils.mkdir_p pack_path(folder) if folder
      FileUtils.mv("#{file}.gz", pack_path("#{key}.gz"))
    end
  end

  # Deleted files
  @logger.info "Checking for deleted files..."

  i = 0
  @repos_remote[:wd].each_pair do |key, value|
    i += 1
    if @repos_local[:wd][key].nil?
      packed = "#{key}.gz"
      change = true
      file = pack_path(packed)
      file[REGEX_FOLDER]
      folder = $2

      @logger.info "Removing: #{packed}"
      @repos_local[:wd].delete key
      @repos_local[:pack].delete packed              
      FileUtils.rm_f(file) if File.exists?(file)
    end
  end

  if change
    @logger.info "Changes found!"
    save_repos(:local)

    host = config[:hosts].sample

    verfile_srv = File.join(".pack", ".repository.yml")
    verbose = @verbose
    @verbose = false
    begin
      fetch_file(verfile_srv, host)
    rescue
      # FIXME: Should never assume that :)
      @logger.warn "Unable to retrieve version file from server, repository probably doesnt exist!"
      @logger.debug "#{$!}"
      # raise RsyncExecuteError
    end
    @verbose = verbose

    load_repos(:remote)

    if @repos_local[:version] < @repos_remote[:version] # && !force
      @logger.warn "WARNING, version on server is NEWER, aborting!"
      raise RsyncError
    end
    @repos_local[:version] += 1
    @repos_remote[:version] = @repos_local[:version]
    @repos_remote[:pack] = @repos_local[:pack].clone
    @repos_remote[:wd] = @repos_local[:wd].clone
    save_repos(:remote)
    save_repos(:local)
    push(host)
  else
    @logger.info "No changes found!"
  end
end

#compare_set(typ, host, online = true) ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 369

def compare_set(typ, host, online = true)
  load_repos(:local)
  load_repos(:remote)

  #if local[typ][:md5] == remote[typ][:md5]
  #  @logger.info "#{typ} Match!"
  #else
  # @logger.info "#{typ} NOT match, updating!"

  mismatch = []
  @repos_remote[typ].each_pair do |key, value|
    if value == @repos_local[typ][key]
      #@logger.info "Match! #{key}"
    else
      @logger.debug "Mismatch! #{key}"
      mismatch << key
    end
  end

  if mismatch.size > 0
    case typ
    when :pack
      # direct unpack of gz into working folder
      # Update file
      if online
        hosts = config[:hosts].clone
        done = false

        ## Pack
        if online
          b = false
          while hosts.size > 0 && !done do
            # FIXME: Nasty
            if b
              host = hosts.sample
              @logger.info "Trying #{host}"
            end
            slist = nil
            b = true
            hosts -= [host]
            begin
              # TODO: Progress bar
              if mismatch.size > (@repos_remote[typ].size / 2)
                @logger.info "Many files mismatched (#{mismatch.size}), running full update on .pack folder"
                arr_opts = []
                arr_opts << PARAMS
                if host[/\A(\w)*\@/]
                  arr_opts << RSH
                end

                arr_opts << esc(File.join(host, '.pack/.'))
                arr_opts << esc(pack_path)
                command('', arr_opts)
              else
                c = mismatch.size
                @logger.info "Fetching #{mismatch.size} files... Please wait"
                slist = File.join(TEMP_PATH, ".six-updater_#{rand 9999}-list")
                slist.gsub!("\\", "/")
                File.open(slist, 'w') do |f|
                  mismatch.each { |e| f.puts e }
                end
                arr_opts = []
                arr_opts << PARAMS
                arr_opts << RSH if host[/\A(\w)*\@/]

                cyg_slist = "\"#{slist}\""

                while cyg_slist[WINDRIVE] do
                  drive = cyg_slist[WINDRIVE]
                  cyg_slist.gsub!(drive, "\"/cygdrive/#{$1}")
                end
                arr_opts << "--files-from=#{cyg_slist}"

                arr_opts << esc(File.join(host, '.pack/.'))
                arr_opts << esc(pack_path)

                command('', arr_opts)
              end
              done = true
            rescue
              @logger.warn "Failure"
              @logger.debug "#{$!}"
            ensure
              FileUtils.rm_f slist if slist
            end
          end
          @logger.warn "There was a problem during updating, please retry!" unless done
        end
      end
    when :wd
      mismatch.each_with_index do |e, index|
        # TODO: Nicer progress bar...
        @logger.info "Unpacking #{index + 1}/#{mismatch.size}: #{e}"
        unpack(:path => "#{e}.gz")
      end
    end
  end

  @repos_local[typ].each_pair do |key, value|
    del_file(key, typ) unless config[:exclude].include?(key) || !@repos_remote[typ][key].nil?
  end

  @repos_local[typ] = calc_sums(typ)
  @repos_local[:version] = @repos_remote[:version]
  save_repos
end

#compare_sums(online = true, host = config[:hosts].sample) ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 476

def compare_sums(online = true, host = config[:hosts].sample)
  hosts = config[:hosts].clone
  done = false

  ## Pack
  if online
    b = false
    verbose = @verbose
    @verbose = false
    while hosts.size > 0 && !done do
      # FIXME: Nasty
      host = hosts.sample if b
      b = true
      hosts -= [host]
      @logger.info "Trying #{host}"

      begin
        FileUtils.cp(pack_path(".repository.yml"), rsync_path(".repository-pack.yml"))
        fetch_file(".pack/.repository.yml", host)

        load_repos(:remote)
        load_repos(:local)

        if @repos_local[:version] > @repos_remote[:version] # && !force
          @logger.warn "WARNING, version on server is OLDER, aborting!"
          FileUtils.cp(rsync_path(".repository-pack.yml"), pack_path(".repository.yml"))
          raise RsyncError
        end
        done = true
      rescue
        @logger.debug "#{$!}"
      ensure
        FileUtils.rm(rsync_path(".repository-pack.yml"))
      end
    end
    @verbose = verbose
  end
  if done && online
    # TODO: Don't do actions when not online
    @logger.info "Verifying Packed files..."
    compare_set(:pack, host)
    @logger.info "Verifying Unpacked files..."
    compare_set(:wd, host)
    save_repos
  end
end

#init ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 97

def init
  @logger.info "Processing: #{rsync_path}"
  if File.exists? rsync_path
    @logger.error "Seems to already be an Rsync repository, Aborting!"
    raise RsyncError
  end
  if File.exists? @rsync_work_dir
    @logger.error "Seems to already be a folder, Aborting!"
    raise RsyncError
  end
  FileUtils.mkdir_p pack_path
  save_config(config)
  save_repos(:local)
  save_repos(:remote)
end

#push(host = nil) ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 351

def push(host = nil)
  @logger.info "Pushing..."
  @config = load_config
  host = config[:hosts].sample unless host
  # TODO: UNCLUSTERFUCK
  arr_opts = []
  arr_opts << PARAMS

  # Upload .pack changes
  if host[/\A(\w)*\@/]
    arr_opts << RSH
  end
  arr_opts << esc(pack_path('.'))
  arr_opts << esc(File.join(host, '.pack'))

  command('', arr_opts)
end

#reset(opts = {}) ⇒ Object

TODO: Allow local-self healing, AND remote healing. reset and fetch?



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# File 'lib/six/rsync/lib.rb', line 209

def reset(opts = {})
  @logger.info "Resetting!"
  if opts[:hard]
    @config = load_config
    calc
    save_repos
    compare_sums(false)
  end
end

#status ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 59

def status
  @logger.info "Showing changes on #{@rsync_work_dir}"
  @config = load_config
  unless @config
    @logger.error "Not an Rsync repository!"
    return
  end

  load_repos(:local)
  load_repos(:remote)

  @logger.info "Calculating Checksums..."
  @repos_local[:wd] = calc_sums(:wd)
  # Added or Changed files
  ar = Dir[File.join(@rsync_work_dir, '/**/*')]

  change = false
  i = 0
  @repos_local[:wd].each_pair do |key, value|
    i += 1
    if value != @repos_remote[:wd][key]
      change = true
      @logger.info "Modified: #{i}/#{@repos_local[:wd].size}: #{key}"
    end
  end

  # Deleted files
  @logger.info "Checking for deleted files..."

  i = 0
  @repos_remote[:wd].each_pair do |key, value|
    i += 1
    if @repos_local[:wd][key].nil?
      @logger.info "Removed: #{packed}"
    end
  end
end

#update(cmd, x_opts = [], opts = {}) ⇒ Object 



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# File 'lib/six/rsync/lib.rb', line 148

def update(cmd, x_opts = [], opts = {})
  @logger.debug "Checking for updates..."
  @config = load_config
  unless @config
    @logger.error "Not an Rsync repository!"
    raise RsyncError
  end

  unless config[:hosts].size > 0
    @logger.error "No hosts configured!"
    raise RsyncError
  end

  load_repos(:local)
  load_repos(:remote)

  hosts = config[:hosts].clone
  host = hosts.sample

  if opts[:force]
    done = false
    b = false
    verbose = @verbose
    @verbose = false
    while hosts.size > 0 && !done do
      # FIXME: Nasty
      host = hosts.sample if b
      b = true
      hosts -= [host]
      @logger.info "Trying #{host}"

      begin
        arr_opts = []
        arr_opts << PARAMS
        arr_opts += x_opts
        if host[/\A(\w)*\@/]
          arr_opts << RSH #"-e ssh"
        end
        arr_opts << esc(File.join(host, '.pack/.'))
        arr_opts << esc(pack_path)
        command(cmd, arr_opts)
        calc
        save_repos
        done = true
      rescue
        @logger.debug "#{$!}"
      end
    end
    @verbose = verbose
    raise RsyncError if !done
  else
    #reset(:hard => true)
    calc
    save_repos

    # fetch latest sums and only update when changed
    compare_sums(true, host)
  end          
end