Class: Jammit::S3Uploader

Inherits:
Object
  • Object
show all
Defined in:
lib/jammit/s3_uploader.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ S3Uploader

Returns a new instance of S3Uploader.



6
7
8
9
10
11
12
13
14
15
16
17
18
 
# File 'lib/jammit/s3_uploader.rb', line 6

def initialize(options = {})
  @bucket = options[:bucket]
  unless @bucket
    @bucket_name = options[:bucket_name] || Jammit.configuration[:s3_bucket]
    @access_key_id = options[:access_key_id] || Jammit.configuration[:s3_access_key_id]
    @secret_access_key = options[:secret_access_key] || Jammit.configuration[:s3_secret_access_key]
    @bucket_location = options[:bucket_location] || Jammit.configuration[:s3_bucket_location]
    @cache_control = options[:cache_control] || Jammit.configuration[:s3_cache_control]
    @acl = options[:acl] || Jammit.configuration[:s3_permission]

    @bucket = find_or_create_bucket
  end
end

Instance Method Details

#find_or_create_bucket ⇒ Object 



87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
 
# File 'lib/jammit/s3_uploader.rb', line 87

def find_or_create_bucket
  s3_service = S3::Service.new(:access_key_id => @access_key_id, :secret_access_key => @secret_access_key)

  # find or create the bucket
  begin
    s3_service.buckets.find(@bucket_name)
  rescue S3::Error::NoSuchBucket
    log "Bucket not found. Creating '#{@bucket_name}'..."
    bucket = s3_service.buckets.build(@bucket_name)

    location = (@bucket_location.to_s.strip.downcase == "eu") ? :eu : :us
    bucket.save(location)
    bucket
  end
end

#log(msg) ⇒ Object 



103
104
105
 
# File 'lib/jammit/s3_uploader.rb', line 103

def log(msg)
  puts msg
end

#upload ⇒ Object 



20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/jammit/s3_uploader.rb', line 20

def upload
  log "Pushing assets to S3 bucket: #{@bucket.name}"
  globs = []

  # add default package path
  if Jammit.gzip_assets
    globs << "public/#{Jammit.package_path}/**/*.gz"
  else
    globs << "public/#{Jammit.package_path}/**/*.css"
    globs << "public/#{Jammit.package_path}/**/*.js"
  end

  # add images
  globs << "public/images/**/*" unless Jammit.configuration[:s3_upload_images] == false

  # add custom configuration if defined
  s3_upload_files = Jammit.configuration[:s3_upload_files]
  globs << s3_upload_files if s3_upload_files.is_a?(String)
  globs += s3_upload_files if s3_upload_files.is_a?(Array)

  # upload all the globs
  globs.each do |glob|
    upload_from_glob(glob)
  end
end

#upload_from_glob(glob) ⇒ Object 



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/jammit/s3_uploader.rb', line 46

def upload_from_glob(glob)
  log "Pushing files from #{glob}"
  log "#{ASSET_ROOT}/#{glob}"
  Dir["#{ASSET_ROOT}/#{glob}"].each do |local_path|
    next if File.directory?(local_path)
    remote_path = local_path.gsub(/^#{ASSET_ROOT}\/public\//, "")

    use_gzip = false

    # handle gzipped files
    if File.extname(remote_path) == ".gz"
      use_gzip = true
      remote_path = remote_path.gsub(/\.gz$/, "")
    end
    
    # check if the file already exists on s3
    begin
      obj = @bucket.objects.find_first(remote_path)
    rescue
      obj = nil
    end

    # if the object does not exist, or if the MD5 Hash / etag of the 
    # file has changed, upload it
    if !obj || (obj.etag != Digest::MD5.hexdigest(File.read(local_path)))
      log "pushing file to s3: #{remote_path}"

      # save to s3
      new_object = @bucket.objects.build(remote_path)
      new_object.cache_control = @cache_control if @cache_control
      new_object.content_type = MimeMagic.by_path(remote_path)
      new_object.content = open(local_path)
      new_object.content_encoding = "gzip" if use_gzip
      new_object.acl = @acl if @acl
      new_object.save
    else
      log "file has not changed: #{remote_path}"
    end     
  end
end