Friendsnippets

 1 #!/usr/bin/ruby
 2 #
 3 # how to use it :
 4 # ovars=EnvBash.new(file)
 5 # bash_vars=ovars.vars
 6 #
 7 
 8 
 9 class MultiRegexp < Regexp
10     def matches(str)
11         str.scan(self) do
12           yield Regexp.last_match
13         end
14     end
15 end
16 
17 
18 class EnvBash
19 	attr_reader :bash_env
20 
21 	def initialize(source)
22 			bash_script ="\
23 source #{source}
24 set
25 "			
26 			@bash_env = `#{bash_script}`
27 	end
28 
29 	def vars
30 		bvars=Hash.new
31 		re=MultiRegexp.new('(\w*)=(.*)$', true)
32 		re.matches(@bash_env) { |i|
33 			if (i[1] != "")
34 				if i[2] =~ /\(([^\)]*)\)/
35 					ta=Array.new
36 					re_a=MultiRegexp.new('\[\d*\]=\"([^"]*)\"', true)
37 					re_a.matches($1) { |j|
38 						ta.push(j[1])
39 					}
40 					bvars[i[1]]=ta
41 				elsif
42 					bvars[i[1]]=i[2]
43 				end
44 			end
45 		}
46 		return bvars
47 	end
48 end
49 
50 # test on a pkgbuild (archlinux)
51 bashvars=EnvBash.new("/var/abs/kernels/kernel26/PKGBUILD")
52 
53 bvars=bashvars.vars
54         puts "#{bvars['pkgname']}-#{bvars['pkgver']}-#{bvars['pkgrel']}"
55 
56 if bvars['source'].instance_of?(Array)
57     puts "sources : "
58     bvars['source'].each { |src|
59         puts src
60     }
61 end