66 lines
1.6 KiB
Ruby
Executable File
66 lines
1.6 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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# encoding: UTF-8
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# --
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# Copyright (C) 2008-2010 10gen Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ++
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require 'rubygems'
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require 'bson'
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# Note that this will not properly round-trip in all cases
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# from the output generated by j2bson.
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begin
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require 'yajl'
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rescue LoadError
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puts "This script requires yajl. Please install as follows:"
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puts " gem install yajl-ruby"
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Process.exit
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end
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# Convert all documents in an IO into JSON.
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def print_b2json(io)
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while not io.eof? do
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bsonobj = BSON.read_bson_document(io)
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Yajl::Encoder.encode(bsonobj, STDOUT)
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STDOUT << "\n"
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end
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end
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# print usage
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def usage()
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STDERR << <<END_OF_USAGE
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usage: b2json [-h] [file1 [file2]]
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Converts a BSON file to JSON on STDOUT.
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You can pass multiple filenames.
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If no filenames are passed, then STDIN is consumed.
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END_OF_USAGE
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exit
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end
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# no arg, use STDIN
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# -h, print usage and exit
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# otherwise loop of filenames
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if ARGV.empty? then
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print_b2json(STDIN)
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exit
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elsif ARGV[0] == "-h" then
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usage()
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else
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ARGV.each { |fname| print_b2json(File.new(fname)) }
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end
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