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.: add README and LICENSE
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LICENSE
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LICENSE
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Copyright (c) 2015 Vincent Batts, Raleigh, NC, USA
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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README.md
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README.md
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Overview
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--------
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Extend the upstream golang stdlib `archive/tar` library, to expose the raw
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bytes of the TAR, rather than just the marshalled headers and file stream.
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The goal being that by preserving the raw bytes of each header, padding bytes,
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and the raw file payload, one could reassemble the original archive.
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Caveat
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======
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Eventually this should detect TARs that this is not possible with.
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For example stored sparse files that have "holes" in them, will be read as a
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contiguous file, though the archive contents may be recorded in sparse format.
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Therefore when adding the file payload to a reassembled tar, to achieve
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identical output, the file payload would need be precisely re-sparsified. This
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is not something I seek to fix imediately, but would rather have an alert that
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precise reassembly is not possible.
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Contract
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========
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Do not break the API of stdlib `archive/tar`
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License
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=======
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See LICENSE
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