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

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



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# File 'lib/easy_html_generator/checksum.rb', line 40

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

.checksum(input) ⇒ Object 



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# 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) 


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# File 'lib/easy_html_generator/checksum.rb', line 16

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 



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# File 'lib/easy_html_generator/checksum.rb', line 12

def self.file_checksum(file)
  checksum(File.read(file))
end

.invalidate_all ⇒ Object 



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# File 'lib/easy_html_generator/checksum.rb', line 36

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

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



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# File 'lib/easy_html_generator/checksum.rb', line 30

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

  @file_checksums.delete(key)
end

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



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# File 'lib/easy_html_generator/checksum.rb', line 24

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

  @file_checksums[key] = file_checksum(file)
end