7b7bb25a24
[Re-retry of r21696 and r21739] If the embedder chooses, the 'natives' (library sources) and the precompiled startup blob can be written to files during the build process and handed over to V8 at startup. The main purpose would be to reduce the size of the compiled binary for space constrained platforms. The build-time option is off by default. Nothing should change if it's not enabled. BUG= R=jochen@chromium.org Review URL: https://codereview.chromium.org/334913004 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21941 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
76 lines
2.8 KiB
Python
76 lines
2.8 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2014 the V8 project authors. All rights reserved.
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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 are
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# met:
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#
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# * 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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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# This utility concatenates several files into one. On Unix-like systems
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# it is equivalent to:
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# cat file1 file2 file3 ...files... > target
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#
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# The reason for writing a seperate utility is that 'cat' is not available
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# on all supported build platforms, but Python is, and hence this provides
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# us with an easy and uniform way of doing this on all platforms.
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import optparse
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def Concatenate(filenames):
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"""Concatenate files.
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Args:
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files: Array of file names.
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The last name is the target; all earlier ones are sources.
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Returns:
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True, if the operation was successful.
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"""
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if len(filenames) < 2:
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print "An error occured generating %s:\nNothing to do." % filenames[-1]
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return False
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try:
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with open(filenames[-1], "wb") as target:
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for filename in filenames[:-1]:
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with open(filename, "rb") as current:
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target.write(current.read())
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return True
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except IOError as e:
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print "An error occured when writing %s:\n%s" % (filenames[-1], e)
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return False
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def main():
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parser = optparse.OptionParser()
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parser.set_usage("""Concatenate several files into one.
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Equivalent to: cat file1 ... > target.""")
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(options, args) = parser.parse_args()
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exit(0 if Concatenate(args) else 1)
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if __name__ == "__main__":
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main()
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