Class: Photoapp::S3

Inherits:
Object
  • Object
show all
Defined in:
lib/photoapp/s3.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ S3

Returns a new instance of S3.



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# File 'lib/photoapp/s3.rb', line 7

def initialize(options)
  begin
    require 'aws-sdk-v1'
  rescue LoadError
    abort "Deploying to S3 requires the aws-sdk-v1 gem. Install with `gem install aws-sdk-v1`."
  end
  @options     = options
  @local       = File.expand_path(options['upload_queue'] || 'upload_queue')
  @bucket_name = options['bucket_name']
  @access_key  = options['access_key_id']     || ENV['AWS_ACCESS_KEY_ID']
  @secret_key  = options['secret_access_key'] || ENV['AWS_SECRET_ACCESS_KEY']
  @region      = options['region']            || ENV['AWS_DEFAULT_REGION'] || 'us-east-1'
  @distro_id   = options['distribution_id']   || ENV['AWS_DISTRIBUTION_ID']
  @remote_path = (options['remote_path']      || '/').sub(/^\//,'')
  @verbose     = options['verbose']
  @incremental = options['incremental']
  @delete      = options['delete']
  @headers     = options['headers']           || []
  @remote_path = @remote_path.sub(/^\//,'')  # remove leading slash
  @pull_dir    = options['dir']
  connect
end

Class Method Details

.default_config(options = {}) ⇒ Object

Return default configuration options for this deployment type



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# File 'lib/photoapp/s3.rb', line 260

def self.default_config(options={})
  "\#{\"bucket_name: \#{options[:bucket_name]}\".ljust(40)}  # Name of the S3 bucket where these files will be stored.\n\#{\"access_key_id: \#{options[:access_key_id]}\".ljust(40)}  # Get this from your AWS console at aws.amazon.com.\n\#{\"secret_access_key: \#{options[:secret_access_key]}\".ljust(40)}  # Keep it safe; keep it secret. Keep this file in your .gitignore.\n\#{\"distribution_id: \#{options[:distribution_id]}\".ljust(40)}  # Get this from your CloudFront page at https://console.aws.amazon.com/cloudfront/\n\#{\"remote_path: \#{options[:remote_path] || '/'}\".ljust(40)}  # relative path on bucket where files should be copied.\n\#{\"region: \#{options[:remote_path] || 'us-east-1'}\".ljust(40)}  # Region where your bucket is located.\n\#{\"verbose: \#{options[:verbose] || 'false'}\".ljust(40)}  # Print out all file operations.\n\#{\"incremental: \#{options[:incremental] || 'false'}\".ljust(40)}  # Only upload new/changed files\n\#{\"delete: \#{options[:delete] || 'false'}\".ljust(40)}  # Remove files from destination which do not match source files.\n"
end

Instance Method Details

#add_bucket ⇒ Object

Create a new S3 bucket



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# File 'lib/photoapp/s3.rb', line 187

def add_bucket
  puts @bucket_name
  @bucket = @s3.buckets.create(@bucket_name)
  puts "Created new bucket '#{@bucket_name}' in region '#{@region}'."
  configure_bucket
end

#configure_bucket ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 194

def configure_bucket
  error_page = @options['error_page'] || remote_path('404.html')
  index_page = @options['index_page'] || remote_path('index.html')

  config = @bucket.configure_website do |cfg|
    cfg.index_document_suffix = index_page
    cfg.error_document_key = error_page
  end
  puts "Bucket configured with index_document: #{index_page} and error_document: #{error_page}."
end

#connect ⇒ Object

Connect to S3 using the AWS SDK Retuns an aws bucket



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# File 'lib/photoapp/s3.rb', line 67

def connect
  AWS.config(access_key_id: @access_key, secret_access_key: @secret_key, region: @region)
  @s3 = AWS.s3
  @cloudfront = AWS.cloud_front.client
end

#deletable_files ⇒ Object

Files from the bucket which are deletable Only deletes files beneath the remote_path if specified



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# File 'lib/photoapp/s3.rb', line 228

def deletable_files
  return [] unless delete_files?
  unless @deletable
    @deletable = @bucket.objects.map(&:key) - site_files_dest
    @deletable.reject!{|f| (f =~ /^#{@remote_path}/).nil? }
  end
  @deletable
end

#delete_files ⇒ Object

Delete files from the bucket, to ensure a 1:1 match with site files



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# File 'lib/photoapp/s3.rb', line 171

def delete_files
  if deletable_files.size > 0
    puts "Deleting #{pluralize('file', deletable_files.size)}:" if @verbose
    deletable_files.each do |file|
      @bucket.objects.delete(file)
      if @verbose
        puts "- #{file}"
      else
        progress('-')
      end
    end
  end
end

#delete_files? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/photoapp/s3.rb', line 205

def delete_files?
  !!@delete
end

#get_file_with_metadata(file, s3_filename) ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 124

def get_file_with_metadata(file, s3_filename)
  file_with_options = {
    :file => file,
    :acl => :public_read
  }

  @headers.each do |conf|
    if conf.has_key? 'filename' and s3_filename.match(conf['filename'])
      if @verbose
        puts "+ #{remote_path(file)} matched pattern #{conf['filename']}"
      end

      if conf.has_key? 'expires'
        expireDate = conf['expires']

        relative_years = /^\+(\d+) year(s)?$/.match(conf['expires'])
        if relative_years
          expireDate = (Time.now + (60 * 60 * 24 * 365 * relative_years[1].to_i)).httpdate
        end

        relative_days = /^\+(\d+) day(s)?$/.match(conf['expires'])
        if relative_days
          expireDate = (Time.now + (60 * 60 * 24 * relative_days[1].to_i)).httpdate
        end

        file_with_options[:expires] = expireDate
      end

      if conf.has_key? 'content_type'
        file_with_options[:content_type] = conf['content_type']
      end

      if conf.has_key? 'cache_control'
        file_with_options[:cache_control] = conf['cache_control']
      end

      if conf.has_key? 'content_encoding'
        file_with_options[:content_encoding] = conf['content_encoding']
      end
    end
  end

  return file_with_options
end

#invalidate_cache(files) ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 109

def invalidate_cache(files)
  puts "Invalidating cache for #{pluralize('file', site_files.size)}" if @verbose
  @cloudfront.create_invalidation(
    distribution_id: @distro_id, 
    invalidation_batch:{
      paths:{
        quantity: files.size,
        items: files.map{|file| "/" + remote_path(file)}
      }, 
      # String of 8 random chars to uniquely id this invalidation
      caller_reference: (0...8).map { ('a'..'z').to_a[rand(26)] }.join
    }
  ) unless files.empty?
end

#pluralize(str, num) ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 254

def pluralize(str, num)
  str << 's' if num != 1
  str
end

#progress(str) ⇒ Object

Print consecutive characters



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# File 'lib/photoapp/s3.rb', line 249

def progress(str)
  print str if @verbose
  $stdout.flush
end

#pull ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 43

def pull
  @bucket = @s3.buckets[@bucket_name]
  if !@bucket.exists?
    abort "Bucket not found: '#{@bucket_name}'. Check your configuration or create a bucket using: `octopress deploy add-bucket`"
  else
    puts "Syncing from S3 bucket: '#{@bucket_name}' to #{@pull_dir}."
    @bucket.objects.each do |object|
      path = File.join(@pull_dir, object.key)

      # Path is a directory, not a file
      if path =~ /\/$/ 
        FileUtils.mkdir_p(path) unless File.directory?(path)
      else
        dir = File.dirname(path)
        FileUtils.mkdir_p(dir) unless File.directory?(dir)
        File.open(path, 'w') { |f| f.write(object.read) }
      end
    end
  end
end

#push ⇒ Object 



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# File 'lib/photoapp/s3.rb', line 30

def push
  #abort "Seriously, you should. Quitting..." unless Deploy.check_gitignore
  @bucket = @s3.buckets[@bucket_name]
  if !@bucket.exists?
    abort "Bucket not found: '#{@bucket_name}'. Check your configuration or create a bucket using: `octopress deploy add-bucket`"
  else
    puts "Syncing #{@local} files to #{@bucket_name} on S3." if @verbose
    write_files
    delete_files if delete_files?
    status_message if @verbose
  end
end

#remote_path(file) ⇒ Object

Replace local path with remote path



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# File 'lib/photoapp/s3.rb', line 222

def remote_path(file)
  File.join(@remote_path, file.sub(@local, '')).sub(/^\//, '')
end

#site_files ⇒ Object

local site files



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# File 'lib/photoapp/s3.rb', line 210

def site_files
  @site_files ||= Find.find(@local).to_a.reject do |f|
    File.directory?(f)
  end
end

#site_files_dest ⇒ Object

Destination paths for local site files.



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# File 'lib/photoapp/s3.rb', line 217

def site_files_dest
  @site_files_dest ||= site_files.map{|f| remote_path(f) }
end

#status_message ⇒ Object

List written and deleted file counts



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# File 'lib/photoapp/s3.rb', line 238

def status_message
  uploaded = site_files.size
  deleted = deletable_files.size

  message =  "\nSuccess:".green + " #{uploaded} #{pluralize('file', uploaded)} uploaded"
  message << ", #{deleted} #{pluralize('file', deleted)} deleted."
  puts message
  configure_bucket unless @bucket.website?
end

#write_files ⇒ Object

Write site files to the selected bucket



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# File 'lib/photoapp/s3.rb', line 75

def write_files
  puts "Writing #{pluralize('file', site_files.size)}:" if @verbose
  files_to_invalidate = []
  site_files.each do |file|
    s3_filename = remote_path(file)
    o = @bucket.objects[s3_filename]
    file_with_options = get_file_with_metadata(file, s3_filename);

    begin
      s3sum = o.etag.tr('"','') if o.exists?
    rescue AWS::S3::Errors::NoSuchKey
      s3sum = ""
    end

    if @incremental && (s3sum == Digest::MD5.file(file).hexdigest)
      if @verbose
        puts "= #{remote_path(file)}"
      else
        progress('=')
      end
    else 
      o.write(file_with_options)
      files_to_invalidate.push(file)
      if @verbose
        puts "+ #{remote_path(file)}"
      else
        progress('+')
      end
    end
  end

  invalidate_cache(files_to_invalidate) unless @distro_id.nil?
end