Class: Bosh::Cli::VersionFileResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/cli/versions/version_file_resolver.rb

Instance Method Summary collapse

Constructor Details

#initialize(storage, blobstore, tmpdir = Dir.tmpdir) ⇒ VersionFileResolver

Returns a new instance of VersionFileResolver.



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# File 'lib/cli/versions/version_file_resolver.rb', line 4

def initialize(storage, blobstore, tmpdir=Dir.tmpdir)
  @storage = storage
  @blobstore = blobstore
  @tmpdir = tmpdir
end

Instance Method Details

#find_file(blobstore_id, sha1, version, desc) ⇒ Object 



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# File 'lib/cli/versions/version_file_resolver.rb', line 10

def find_file(blobstore_id, sha1, version, desc)
  if @storage.has_file?(version)
    say('FOUND LOCAL'.make_green)
    file_path = @storage.get_file(version)
    file_sha1 = Digest::SHA1.file(file_path).hexdigest
    if file_sha1 == sha1
      return file_path
    end
    say("SHA1 `#{file_sha1}' of #{desc} does not match expected SHA1 `#{sha1}'".make_red)
  end

  if blobstore_id.nil?
    err("Cannot find #{desc}")
  end

  say('FOUND REMOTE'.make_yellow)
  say("Downloading #{desc} from blobstore (id=#{blobstore_id})...".make_green)

  tmp_file_path = File.join(@tmpdir, "bosh-tmp-file-#{SecureRandom.uuid}")
  begin
    File.open(tmp_file_path, 'w') do |tmp_file|
      @blobstore.get(blobstore_id, tmp_file)
    end

    file_sha1 = Digest::SHA1.file(tmp_file_path).hexdigest
    if file_sha1 != sha1
      err("SHA1 `#{file_sha1}' of #{desc} from blobstore (id=#{blobstore_id}) " +
        "does not match expected SHA1 `#{sha1}'" +
        'please remove it manually and re-create the release')
    end

    @storage.put_file(version, tmp_file_path)
  ensure
    FileUtils.rm(tmp_file_path, :force => true)
  end
end