1virt-v2v-hacking(1)         Virtualization Support         virt-v2v-hacking(1)
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3
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NAME

6       virt-v2v-hacking -
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DESCRIPTION

9       First a little history.  Virt-v2v has been through at least two
10       complete rewrites, so this is probably about the third version (but we
11       don't intend to rewrite it again).  The previous version was written in
12       Perl and can be found here:
13       https://git.fedorahosted.org/git/virt-v2v.git
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15       The current version started out as almost a line-for-line rewrite of
16       the Perl code in OCaml + C, and it still has a fairly similar
17       structure.  Therefore if there are details of this code that you don't
18       understand (especially in the details of guest conversion), checking
19       the Perl code may help.
20
21       The files to start with when reading this code are:
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23       ·   types.mli
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25       ·   v2v.ml
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27       types.mli defines all the structures used and passed around when
28       communicating between different bits of the program.  v2v.ml controls
29       how the program runs in stages.
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31       After studying those files, you may want to branch out into the input
32       modules (input_*), the output modules (output_*) or the conversion
33       modules (convert_*).  The input and output modules define -i and -o
34       options (see the manual).  The conversion modules define what guest
35       types we can handle and the detailed steps involved in converting them.
36
37       Every other file in this directory is a support module / library of
38       some sort.  Some code is written in C, especially where we want to use
39       an external C library such as libxml2.
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SEE ALSO

42       virt-p2v(1), virt-v2v(1).
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AUTHORS

45       Richard W.M. Jones
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48       Copyright (C) 2009-2020 Red Hat Inc.
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LICENSE

51       This program is free software; you can redistribute it and/or modify it
52       under the terms of the GNU General Public License as published by the
53       Free Software Foundation; either version 2 of the License, or (at your
54       option) any later version.
55
56       This program is distributed in the hope that it will be useful, but
57       WITHOUT ANY WARRANTY; without even the implied warranty of
58       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
59       General Public License for more details.
60
61       You should have received a copy of the GNU General Public License along
62       with this program; if not, write to the Free Software Foundation, Inc.,
63       51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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BUGS

66       To get a list of bugs against libguestfs, use this link:
67       https://bugzilla.redhat.com/buglist.cgi?component=libguestfs&product=Virtualization+Tools
68
69       To report a new bug against libguestfs, use this link:
70       https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
71
72       When reporting a bug, please supply:
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74       ·   The version of libguestfs.
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76       ·   Where you got libguestfs (eg. which Linux distro, compiled from
77           source, etc)
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79       ·   Describe the bug accurately and give a way to reproduce it.
80
81       ·   Run libguestfs-test-tool(1) and paste the complete, unedited output
82           into the bug report.
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86virt-v2v-1.42.0                   2020-04-16               virt-v2v-hacking(1)
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