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74 lines
2.3 KiB
Ruby
74 lines
2.3 KiB
Ruby
# Copyright (C) 2011 Apple Inc. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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# THE POSSIBILITY OF SUCH DAMAGE.
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require "config"
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require "digest/sha1"
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require "pathname"
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#
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# dirHash(directory, regexp) -> SHA1 hexdigest
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#
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# Returns a hash of all files in the given directory that fit the given
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# pattern.
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#
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def dirHash(directory, regexp)
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directory = Pathname.new(directory)
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contents = ""
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Dir.foreach(directory) {
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| entry |
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if entry =~ regexp
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contents += IO::read(directory + entry)
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end
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}
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return Digest::SHA1.hexdigest(contents)
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end
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#
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# fileListHash(fileList) -> SHA1 hexdigest
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#
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# Returns a hash of all files in the list.
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#
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def fileListHash(fileList)
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contents = ""
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fileList.each {
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| fileName |
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contents += IO::read(fileName)
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}
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return Digest::SHA1.hexdigest(contents)
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end
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#
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# selfHash -> SHA1 hexdigest
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#
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# Returns a hash of the offlineasm source code. This allows dependency
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# tracking for not just changes in input, but also changes in the assembler
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# itself.
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#
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def selfHash
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dirHash(Pathname.new(__FILE__).dirname, /\.rb$/)
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end
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