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#!/usr/bin/env ruby
require 'optparse'
require 'erb'
options = {}
OptionParser.new do |parser|
parser.banner = "Usage: compile-templates.rb [options] <template-files...>"
parser.on("--pkgname=PKGNAME", "Name of package") do |v|
options[:pkgname] = v
end
parser.on("--pkgdesc=PKGDESC", "Description of package") do |v|
options[:pkgdesc] = v
end
end.parse!
raise 'pkgname not provided' unless options.has_key?(:pkgname)
raise 'pkgdesc not provided' unless options.has_key?(:pkgdesc)
templates = ARGV
raise 'templates not provided' unless templates.length > 0
class TemplateVariables
attr_reader :pkgname, :pkgdesc
def initialize(pkgname, pkgdesc)
@pkgname = pkgname
@pkgdesc = pkgdesc
end
def get_binding
binding()
end
end
templateVariables = TemplateVariables.new(options[:pkgname], options[:pkgdesc])
templates.each do |templateFilename|
template = File.read(templateFilename)
renderer = ERB.new(template)
rendered = renderer.result(templateVariables.get_binding)
templateFilenameWithoutSuffix = templateFilename.delete_suffix('.erb')
outputFilename = templateFilenameWithoutSuffix.sub 'PKGNAME', templateVariables.pkgname
output = File.new(outputFilename, 'w')
output.puts(rendered)
output.close
puts "compiled template \"#{templateFilename}\" to \"#{outputFilename}\""
end
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