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teach protoc-gen-ruby PB_{DUMP,LOAD}_REQUEST_BYTES #307

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teach protoc-gen-ruby PB_{DUMP,LOAD}_REQUEST_BYTES #307

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18 changes: 17 additions & 1 deletion bin/protoc-gen-ruby
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,23 @@ require 'protobuf/code_generator'
STDIN.binmode
STDOUT.binmode

request_bytes = STDIN.read
request_bytes = if ENV['PB_LOAD_REQUEST_BYTES']
File.read(ENV['PB_LOAD_REQUEST_BYTES'])
else
STDIN.read
end
if ENV['PB_DUMP_REQUEST_BYTES']
dump_file = ENV['PB_DUMP_REQUEST_BYTES']
unless File.directory?(File.dirname(dump_file))
warn "PB_DUMP_REQUEST_BYTES=#{dump_file.inspect} is not a valid path for the request bytes"
warn "Usage: PB_DUMP_REQUEST_BYTES=/path/to/desired/dump/file.bin protoc blah.proto"
exit 1
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cc @nerdrew did you actually want this to be exit 0?

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Nevermind this is fine, the Ruby docs on exit were misleading

end
File.open(dump_file, 'w') do |f|
f.print(request_bytes)
end
exit 1
end
code_generator = ::Protobuf::CodeGenerator.new(request_bytes)
code_generator.eval_unknown_extensions!
STDOUT.print(code_generator.response_bytes)