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119 lines
4.7 KiB
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119 lines
4.7 KiB
Plaintext
How to contribute a patch to libssh
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====================================
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Simple, just make the code change, and email it as either a "diff -u"
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change, or as a "git format-patch" change against the original source
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code to libssh@libssh.org, or attach it to a bug report at
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https://red.libssh.org/
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For larger code changes, breaking the changes up into a set of simple
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patches, each of which does a single thing, are much easier to review.
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Patch sets like that will most likely have an easier time being merged
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into the libssh code than large single patches that make lots of
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changes in one large diff.
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Ownership of the contributed code
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==================================
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libssh is a project with distributed copyright ownership, which means
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we prefer the copyright on parts of libssh to be held by individuals
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rather than corporations if possible. There are historical legal
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reasons for this, but one of the best ways to explain it is that it's
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much easier to work with individuals who have ownership than corporate
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legal departments if we ever need to make reasonable compromises with
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people using and working with libssh.
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We track the ownership of every part of libssh via http://git.libssh.org,
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our source code control system, so we know the provenance of every piece
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of code that is committed to libssh.
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So if possible, if you're doing libssh changes on behalf of a company
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who normally owns all the work you do please get them to assign
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personal copyright ownership of your changes to you as an individual,
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that makes things very easy for us to work with and avoids bringing
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corporate legal departments into the picture.
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If you can't do this we can still accept patches from you owned by
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your employer under a standard employment contract with corporate
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copyright ownership. It just requires a simple set-up process first.
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We use a process very similar to the way things are done in the Linux
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Kernel community, so it should be very easy to get a sign off from
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your corporate legal department. The only changes we've made are to
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accommodate the license we use, which is LGPLv2 (or later) whereas the
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Linux kernel uses GPLv2.
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The process is called signing.
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How to sign your work
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----------------------
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Once you have permission to contribute to libssh from your employer, simply
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email a copy of the following text from your corporate email address to:
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contributing@libssh.org
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libssh Developer's Certificate of Origin. Version 1.0
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By making a contribution to this project, I certify that:
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(a) The contribution was created in whole or in part by me and I
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have the right to submit it under the appropriate
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version of the GNU General Public License; or
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(b) The contribution is based upon previous work that, to the best of
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my knowledge, is covered under an appropriate open source license
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and I have the right under that license to submit that work with
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modifications, whether created in whole or in part by me, under
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the GNU General Public License, in the appropriate version; or
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(c) The contribution was provided directly to me by some other
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person who certified (a) or (b) and I have not modified it.
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(d) I understand and agree that this project and the contribution are
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public and that a record of the contribution (including all
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metadata and personal information I submit with it, including my
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sign-off) is maintained indefinitely and may be redistributed
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consistent with the libssh Team's policies and the requirements of
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the GNU GPL where they are relevant.
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(e) I am granting this work to this project under the terms of the
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GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of
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the License, or (at the option of the project) any later version.
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http://www.gnu.org/licenses/lgpl-2.1.html
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We will maintain a copy of that email as a record that you have the
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rights to contribute code to libssh under the required licenses whilst
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working for the company where the email came from.
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Then when sending in a patch via the normal mechanisms described
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above, add a line that states:
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Signed-off-by: Random J Developer <random@developer.example.org>
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using your real name and the email address you sent the original email
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you used to send the libssh Developer's Certificate of Origin to us
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(sorry, no pseudonyms or anonymous contributions.)
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That's it! Such code can then quite happily contain changes that have
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copyright messages such as:
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(c) Example Corporation.
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and can be merged into the libssh codebase in the same way as patches
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from any other individual. You don't need to send in a copy of the
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libssh Developer's Certificate of Origin for each patch, or inside each
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patch. Just the sign-off message is all that is required once we've
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received the initial email.
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Have fun and happy libssh hacking !
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The libssh Team
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