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# -*- coding: us-ascii -*-
# Used to expand Ruby template files by common.mk, uncommon.mk and
# some Ruby extension libraries.
require 'erb'
require 'optparse'
require_relative 'lib/output'
out = Output.new
source = false
templates = []
ARGV.options do |o|
o.on('-i', '--input=PATH') {|v| template << v}
o.on('-x', '--source') {source = true}
out.def_options(o)
o.order!(ARGV)
templates << (ARGV.shift or abort o.to_s) if templates.empty?
end
# Used in prelude.c.tmpl and unicode_norm_gen.tmpl
output = out.path
vpath = out.vpath
# A hack to prevent "unused variable" warnings
output, vpath = output, vpath
result = templates.map do |template|
if ERB.instance_method(:initialize).parameters.assoc(:key) # Ruby 2.6+
erb = ERB.new(File.read(template), trim_mode: '%-')
else
erb = ERB.new(File.read(template), nil, '%-')
end
erb.filename = template
source ? erb.src : proc{erb.result(binding)}.call
end
result = result.size == 1 ? result[0] : result.join("")
out.write(result)
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