Running erb templates from the command line
The following script takes the name of a template as it's argument. Within the
template the command erb is in scope to call more templates. I wrote this for a friend who was having hell with NVU templates and I suggested to write the code by hand and use this script to build his static pages.
The erb command itself takes an optional argument of a hash which is passed to the template as the
variable name args. Thus you can parameterize your sub templates.
Call the command as
The main template
and the sub template title.thtml
template the command erb is in scope to call more templates. I wrote this for a friend who was having hell with NVU templates and I suggested to write the code by hand and use this script to build his static pages.
1 2 #!/usr/bin/ruby 3 # Quick and dirty template processing script. It takes 4 # as an argument the name of the first template script 5 # and then executes it to standard output. 6 7 require "erb" 8 9 10 class QuickTemplate 11 attr_reader :args, :text 12 def initialize(file) 13 @text = File.read(file) 14 end 15 def exec(args={}) 16 b = binding 17 template = ERB.new(@text, 0, "%<>") 18 result = template.result(b) 19 # Chomp the trailing newline 20 result.gsub(/\n$/,'') 21 end 22 end 23 24 def erb(file, args={}) 25 QuickTemplate.new(file).exec(args) 26 end 27 28 puts erb(ARGV[0])
The erb command itself takes an optional argument of a hash which is passed to the template as the
variable name args. Thus you can parameterize your sub templates.
Call the command as
1 2 ruby erb_run.rb main.thtml
The main template
1 2 <html> 3 <head> 4 </head> 5 <div> 6 <%= erb("title.thtml") %> 7 </div> 8 </html>
and the sub template title.thtml
1 2 <title> This is Alex's cool restraunt</title>
