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#!/usr/bin/env ruby
require 'pathname'
require 'amqpgen'
#
# Run a set of code generation templates.
#
if ARGV.size < 3
puts <<EOS
Usage: #{ARGV[0]} OUTDIR SPEC.xml [ ... ] TEMPLATE.rb [ ... ]
or: #{ARGV[0]} OUTDIR SPEC.xml [ ... ] all [ makefragment.mk ]
Parse all SPEC.xml files to create an AMQP model, run each TEMPLATE
putting the resulting files under OUTDIR. Prints a list of files
generated to standard output.
If OUTDIR is '-' then just prints file list without generating files.
EOS
exit 1
end
# Create array of specs by version
def parse_specs(files)
lists=Hash.new { |h,k| h[k]=[] }
files.each { |f|
spec=AmqpRoot.new(File.new(f))
lists[spec.version] << spec
}
specs={}
lists.each_pair { |k,l|
specs[k] = l.size==1 ? l.first : AmqpRoot.new(*l.map { |s| s.xml})
}
return specs
end
# Run selected templates
if ARGV.any? { |arg| arg=="all" }
templates=Dir["#{File.dirname __FILE__}/*/*.rb"]
else
templates=ARGV.grep(/\.rb$/)
end
$outdir=ARGV[0]
$models=parse_specs(ARGV.grep(/\.xml$/))
templates.each { |t|
ver=Pathname.new(t).dirname.basename.to_s
$amqp=$models[ver]
if $amqp
load t
else
puts "Warning: skipping #{t}, no spec file for version #{ver}."
end
}
def make_continue(lines) lines.join(" \\\n "); end
# Generate makefile
makefile=ARGV.grep(/.mk$/)[0]
if makefile
dir=Dir.getwd
Dir.chdir File.dirname(__FILE__)
generator_files=Dir["**/*.rb"] << File.basename(__FILE__)
Dir.chdir dir
rgen_generator=generator_files.map{ |f| "$(rgen_dir)/#{f}" }
rgen_srcs=GenFiles.get.map{ |f| "#{$outdir}/#{f}" }
File.open(makefile, 'w') { |out|
out << <<EOS
# Generated makefile fragment.
# Including makefile defines $(rgen_dir) $(rgen_cmd) and $(specs).
rgen_generator=#{make_continue rgen_generator}
rgen_client_cpp=#{make_continue(rgen_srcs.grep(%r|/qpid/client/.+\.cpp$|))}
rgen_common_cpp=#{make_continue(rgen_srcs.grep(%r{qpid/(framing|amqp_.+)/.+\.cpp$}))}
rgen_srcs=#{make_continue rgen_srcs}
# Header file install rules.
EOS
["amqp_0_10", "framing", "client/no_keyword","client", "broker"].each { |ns|
dir="qpid/#{ns}"
dir_ = dir.tr("/", "_")
regex=%r|#{dir}/[^/]+\.h$|
out << <<EOS
#{dir_}dir = $(includedir)/#{dir}
dist_#{dir_}_HEADERS = #{make_continue rgen_srcs.grep(regex)}
EOS
}
out << <<EOS
if GENERATE
$(srcdir)/#{File.basename makefile}: $(rgen_generator) $(specs)
$(rgen_cmd)
# Empty rule in case a generator file is renamed/removed.
$(rgen_generator):
endif
EOS
}
end
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