Class: NativeExtFetcher::Fetcher

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

Constant Summary collapse

InvalidDigest = 
Class.new(StandardError)

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#download_path ⇒ Object (readonly)

Returns the value of attribute download_path.



5
6
7
 
# File 'lib/native_ext_fetcher/fetcher.rb', line 5

def download_path
  @download_path
end

Instance Method Details

#config(host, path, checksums, options = {}) ⇒ Object

Raises:

  • (ArgumentError) 


7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/native_ext_fetcher/fetcher.rb', line 7

def config(host, path, checksums, options = {})
  @lib_path = File.expand_path(File.join(path, '..', '..', 'lib'))

  raise ArgumentError, 'Checksums must be a hash' unless Hash === checksums
  raise ArgumentError, 'Library path not found ' unless Dir.exists?(@lib_path)

  @host = host
  @checksums = checksums
  @options = options

  @download_path = expand_download_path

  if options[:static]
    @file_ext = Platform.native_extension_static_file_ext
    @file_postfix = Platform.native_extension_static_file_postfix
  else
    @file_ext = Platform.native_extension_file_ext
    @file_postfix = Platform.native_extension_file_postfix
  end
end

#fetch!(library) ⇒ Object 



28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/native_ext_fetcher/fetcher.rb', line 28

def fetch!(library)
  File.open(library_local_path(library), 'w+') do |file|
    file.truncate 0 # empty file

    uri = library_request_uri(library)
    digest = http_client.get_file(file, uri)

    unless digest == expected_digest
      raise InvalidDigest, "invalid checksums for #{library} from #{uri}"
    end
  end
end