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Latest commit 23a0b6e May 13, 2016 @larsks failure to remove a file should not be fatal
when processing whiteouts, failure to remove a file should
not be fatal, since our desired end state is that the file is absent.

Closes #8.

Unpacks a Docker image.


usage: [-h] [--ignore-errors] [--output OUTPUT] [--verbose]
                   [--debug] [--list] [--layer LAYER]

positional arguments:

optional arguments:
  -h, --help            show this help message and exit
  --ignore-errors, -i   Ignore OS errors when extracting files
  --output OUTPUT, -o OUTPUT
                        Output directory (defaults to ".")
  --verbose, -v
  --debug, -d
  --list, --ls          List layers in an image
  --layer LAYER, -l LAYER
                        Extract only the specified layer


Extract an entire image:

$ docker save busybox | undocker -i -o busybox busybox

The -i option is necessary here because I am not running as root, and the extract operation will fail when it attempts to create device nodes.

List the layers in an image:

$ docker save busybox | undocker --list

Extract only specific layers:

$ docker save busybox |
  undocker -o busybox -v \
  -l 4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125 \
INFO:undocker:extracting image busybox (4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125)
INFO:undocker:extracting layer 4986bf8c15363d1c5d15512d5266f8777bfba4974ac56e3270e7760f6f0a8125


undocker -- a tool for decomposing Docker images
Copyright (C) 2015 Lars Kellogg-Stedman

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see