Class: EasyHtmlGenerator::Checksum

Inherits:
Object
  • Object
show all
Defined in:
lib/easy_html_generator/checksum.rb

Overview

this class handles file checksums

Class Method Summary collapse

Class Method Details

.array_checksum(files) ⇒ Object 



18
19
20
21
22
 
# File 'lib/easy_html_generator/checksum.rb', line 18

def self.array_checksum(files)
  tmp = ''
  files.each { |file| tmp += File.read(file) if File.file? file }
  checksum(tmp)
end

.build_key(file, context = '') ⇒ Object 



56
57
58
 
# File 'lib/easy_html_generator/checksum.rb', line 56

def self.build_key(file, context = '')
  "#{context}.#{file}"
end

.checksum(input) ⇒ Object 



8
9
10
 
# File 'lib/easy_html_generator/checksum.rb', line 8

def self.checksum(input)
  Digest::MD5.hexdigest(input)
end

.file_changed?(file, context = '') ⇒ Boolean

Returns:

  • (Boolean) 


24
25
26
27
28
29
30
 
# File 'lib/easy_html_generator/checksum.rb', line 24

def self.file_changed?(file, context = '')
  key = build_key(file, context)

  return true unless @file_checksums.key? key

  @file_checksums[key] != file_checksum(file)
end

.file_checksum(file) ⇒ Object 



12
13
14
15
16
 
# File 'lib/easy_html_generator/checksum.rb', line 12

def self.file_checksum(file)
  return array_checksum(file) if file.is_a? Array
  return array_checksum(Dir["#{folder}/**/*"]) if File.directory? file
  checksum(File.read(file))
end

.folder_changed?(folder, context = '') ⇒ Boolean

Returns:

  • (Boolean) 


32
33
34
35
36
37
38
 
# File 'lib/easy_html_generator/checksum.rb', line 32

def self.folder_changed?(folder, context = '')
  key = build_key(folder, context)

  return true unless @file_checksums.key? key

  @file_checksums[key] != folder_checksum(folder)
end

.invalidate_all ⇒ Object 



52
53
54
 
# File 'lib/easy_html_generator/checksum.rb', line 52

def self.invalidate_all()
  @file_checksums = {}
end

.invalidate_file(file, context = '') ⇒ Object 



46
47
48
49
50
 
# File 'lib/easy_html_generator/checksum.rb', line 46

def self.invalidate_file(file, context = '')
  key = build_key(file, context)

  @file_checksums.delete(key)
end

.store_file(file, context = '') ⇒ Object 



40
41
42
43
44
 
# File 'lib/easy_html_generator/checksum.rb', line 40

def self.store_file(file, context = '')
  key = build_key(file, context)

  @file_checksums[key] = file_checksum(file)
end