PR: House cleaning

.ciocopyright

@@ -1,6 +1,6 @@
 # -----------------------------------------------------------------------------
-# Copyright (c) Spyder Project Contributors
+# Copyright (c) 2009- Spyder Project Contributors
 #
-# Licensed under the terms of the MIT License
+# Distributed under the terms of the MIT License
 # (see spyder/__init__.py for details)
-# -----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------

.github/PULL_REQUEST_TEMPLATE.md

@@ -15,6 +15,22 @@
 * [ ] Included a screenshot, if this PR makes any visible changes to the UI
 
 
+### Affirmation
+
+By submitting this Pull Request, I affirm that:
+* I release the content of this PR under Spyder's MIT (Expat) license.
+* I hold the copyright to all the content in this PR, have not copied any of it
+  directly or indirectly from any source other than the public domain,
+  and no other party owns the rights to this work.
+
+<!--- TYPE YOUR GITHUB USERNAME OR FULL NAME AFTER THE BELOW STATEMENT ---!>
+I affirm all of the above:
+
+<!--- Note that you (not Spyder) retain copyright ownership of your work, --->
+<!--- and may license it to other parties under the terms of your choice. --->
+<!--- Contact us if you would like to include content from other sources. --->
+
+
 ## Description of Changes
 
 <!--- Describe what you've changed and why. --->

AUTHORS.txt

@@ -0,0 +1,25 @@
+The Spyder Project Contributors is composed of:
+
+* Pierre Raybaut <pierre.raybaut@gmail.com> (Main Spyder author)
+* Carlos Cordoba <ccordoba12@gmail.com> (Current maintainer)
+* All other developers that have contributed to the spyder repository:
+  <https://github.com/spyder-ide/spyder/graphs/contributors>
+
+Additionally, some assets and code were originally sourced from third-party
+authors or projects, including:
+
+* The icons for the Spyder 3 theme are derived from Font Awesome, by
+  David Gandy <https://fontawesome.com/>
+* Most Spyder 2 theme icons are sourced from the Crystal Project icon set, by
+  Everaldo Coelho <https://www.everaldo.com>
+* Other Spyder 2 icons are from Yusuke Kamiyamane's icon sets, by
+  Yusuke Kamiyamane <http://p.yusukekamiyamane.com/>
+* As well as the FamFamFam Silk icon set, by
+  Mark James <http://www.famfamfam.com/lab/icons/silk/>
+* And the KDE Oxygen icons, by
+  The KDE Artists <https://www.kde.org/>
+
+For information about the sources and authors of other third-party code
+and other resources used, please see the NOTICE.txt file, located in the
+root of the spyder repository or online at:
+<https://github.com/spyder-ide/spyder/blob/master/NOTICE.txt>

CONTRIBUTING.md

@@ -212,6 +212,82 @@ To run the Spyder test suite, please use (from the `spyder` root directory):
 ```
 
 
+## Adding Third-Party Content
+
+All files or groups of files, including source code, images, icons, and other
+assets, that originate from projects outside of the Spyder organization
+(regardless of the license), must be first approved by the Spyder team.
+Always check with us (on Github, Gitter, Google Group, etc) before attempting
+to add content from an external project, and only do so when necessary.
+
+
+### Licenses
+
+Code considered for inclusion must be under a permissive (i.e. non-copyleft)
+license, particularly as the following (in order of preference):
+* MIT (Expat)
+* Public domain (preferably, CC0)
+* ISC license
+* BSD 2-clause ("Simplified BSD")
+* BSD 3-clause ("New" or "Modified BSD")
+* Apache License 2.0
+
+Additionally, external assets (fonts, icons, images, sounds, animations)
+can generally be under one of the following weak-copyleft and content licenses:
+* Creative Commons Attribution 3.0 or 4.0
+* SIL Open Font License 1.1
+* GNU LGPL 2.1 or 3.0
+
+Additional licenses *may* qualify for these lists from time to time, but every
+effort should be made to avoid it. Regardless, all such licenses must be
+OSI, FSF, and DSFG approved as well as GPLv3-compatible to ensure maximum
+free distribution and use of Spyder with minimum ambiguity or fragmentation.
+
+
+### Steps to take
+
+#. Contact the Spyder team to ensure the usage is justified and compatible.
+
+#. Add the files, preserving any original copyright/legal/attribution header
+
+#. If making non-trivial modifications, copy the standard Spyder copyright
+   header from ``.ciocopyright`` to just below the original headers;
+   if the original headers are unformatted and just consist of a copyright
+   statement and perhaps mention of the license, incorporate them verbatim
+   within the Spyder header where appropriate.
+   Always ensure copyright statements are in ascending chronological order,
+   and replace the year in the Spyder copyright statement with the current one.
+   Modify the license location to be the current directory, or NOTICE.txt.
+
+#. Include the following line at the end of each module's docstring,
+   separated by blank lines:
+
+   ```rst
+   Adapted from path/to/file/in/original/repo.py of the
+   `Project Name <url-to-original-github-repo>`_.
+   ```
+
+   For example,
+
+   ```rst
+   Adapted from qcrash/_dialogs/gh_login.py of the
+   `QCrash Project <https://github.com/ColinDuquesnoy/QCrash>`_.
+   ```
+
+#. Convert the files to project standards where needed.
+
+#. If the copied file(s) reside in a directory dedicated to them, place the
+   source project's LICENSE.txt file there, and any other legal files.
+   Also, mention the same in the __init__.py file in that directory.
+
+#. Add an entry in NOTICE.txt with the instructions and template there.
+
+#. If a non-code visible asset (icons, fonts, animations, etc) or otherwise
+   under a Creative Commons license, include a mention in the appropriate
+   section of the README, as well as Spyder's About dialog, in the same form
+   as the others present there.
+
+
 ## More information
 
 [Main Website](https://www.spyder-ide.org/)