Module: FileCache

Defined in:
lib/rbbt/util/filecache.rb

Overview

Provides caching functionality for files downloaded from the internet

Constant Summary collapse

CACHEDIR = 
"/tmp/rbbt_cache"

Class Method Summary collapse

Class Method Details

.add(filename, content) ⇒ Object 



29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/rbbt/util/filecache.rb', line 29

def self.add(filename, content)
  path = path(filename)
  
  FileUtils.makedirs(File.dirname(path), :mode => 0777)

  Misc.sensiblewrite(path, content)

  FileUtils.chmod 0666, path

  path
end

.cachedir ⇒ Object 



14
15
16
 
# File 'lib/rbbt/util/filecache.rb', line 14

def self.cachedir
  CACHEDIR
end

.cachedir=(cachedir) ⇒ Object 



9
10
11
12
 
# File 'lib/rbbt/util/filecache.rb', line 9

def self.cachedir=(cachedir)
  CACHEDIR.replace cachedir
  FileUtils.mkdir_p CACHEDIR unless File.exist? CACHEDIR
end

.del(filename) ⇒ Object 



53
54
55
56
57
 
# File 'lib/rbbt/util/filecache.rb', line 53

def self.del(filename)
  path = path(filename)

  FileUtils.rm path if File.exist? path
end

.found(filename) ⇒ Object 



41
42
43
 
# File 'lib/rbbt/util/filecache.rb', line 41

def self.found(filename)
  File.exists? FileCache.path(filename)
end

.get(filename) ⇒ Object 



45
46
47
48
49
50
51
 
# File 'lib/rbbt/util/filecache.rb', line 45

def self.get(filename)
  path = path(filename)

  return nil if ! File.exists? path

  File.open(path)
end

.path(filename) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
 
# File 'lib/rbbt/util/filecache.rb', line 18

def self.path(filename)
  filename = File.basename filename

  filename.match(/(.+)\.(.+)/)

  base = filename.sub(/\..+/,'')
  dirs = base.scan(/./).values_at(0,1,2,3,4).compact.reverse

  File.join(File.join(CACHEDIR, *dirs), filename) 
end