feat: ✨ add CC0 license for data to template

copier.yaml

@@ -83,3 +83,8 @@ copyright_year:
   type: str
   default: "{{ copyright_year | default('%Y' | strftime) }}"
   when: false
+
+cc0_license:
+  type: bool
+  default: true
+  help: "Do you want to use the CC0 license for the data in this data package?"

index.qmd

@@ -12,14 +12,6 @@ configurations in place, including for developing the Data Package.
 
 ## Features
 
-::: content-hidden
-<!-- TODO: Move this down once a license has been decided on. -->
-
--   Licensed under the open data license TODO. This is added by default,
-    but you can delete or modify it if it isn't what you want or can
-    use.
-:::
-
 -   Use [uv](https://decisions.seedcase-project.org/why-uv/) to manage
     the Data Package.
 -   Use [Polars](https://www.pola.rs/) for data manipulation.
@@ -33,8 +25,8 @@ configurations in place, including for developing the Data Package.
 -   GitHub workflows for automatically adding Pull Requests and Issues
     to a project board.
 -   Pull Request template for easy creation of new Pull Requests.
--   [VS Code](https://code.visualstudio.com/) settings commonly
-    used by contributors working in VS Code.
+-   [VS Code](https://code.visualstudio.com/) settings commonly used by
+    contributors working in VS Code.
 -   [EditorConfig](https://editorconfig.org/) for common cross-editor
     settings for contributors.
 -   [`CITATION.cff`](https://citation-file-format.github.io/) file for
@@ -44,6 +36,12 @@ configurations in place, including for developing the Data Package.
     advantage of Python's packaging ecosystem.
 -   [`pyproject.toml`](https://peps.python.org/pep-0518/) for tracking
     dependencies and project metadata.
+-   Use [MIT
+    License](https://decisions.seedcase-project.org/why-mit-license/)
+    for the code used in the Data Package made from this template.
+-   Optionally use the [CC0
+    License](https://decisions.seedcase-project.org/why-cc0-data/) for
+    the data in the Data Package made from this template.
 
 ## Want to contribute?
 

justfile

@@ -48,6 +48,7 @@ test:
     --data author_family_name="Last" \
     --data author_email="[email protected]" \
     --data review_team="@first-last/developers" \
+    --data cc0_license="true" \
     --data github_board_number=22
   # Run checks in the generated test data package
   cd $test_dir
@@ -67,7 +68,7 @@ test:
     --trust
   # Check that copying onto an existing data package works
   echo "Using the template in an existing package command -----------"
-  rm .cz.toml .copier-answers.yml LICENSE-MIT.md
+  rm .cz.toml .copier-answers.yml LICENSE-MIT.md LICENSE.md
   git add .
   git commit -m "test: preparing to copy onto an existing package"
   uvx copier copy \
@@ -82,6 +83,7 @@ test:
     --data author_family_name="Last" \
     --data author_email="[email protected]" \
     --data review_team="@first-last/developers" \
+    --data cc0_license="false" \
     --data github_board_number=22
 
 # Clean up any leftover and temporary build files

template/pyproject.toml.jinja

@@ -12,9 +12,13 @@ maintainers = [
   # TODO: Add more maintainers as needed.
 ]
 readme = "README.md"
-# TODO: Update with a license for the data.
-license = "MIT AND "
-license-files = ["LICENSE-MIT.md", ""]
+{% if cc0_license %}
+license = "MIT AND CC0-1.0"
+license-files = ["LICENSE-MIT.md", "LICENSE.md"]
+{% else %}
+license = "MIT"
+license-files = ["LICENSE-MIT.md"]
+{% endif %}
 requires-python = ">=3.12"
 {% if package_github_repo %}
 [project.urls]

template/{% if cc0_license %}LICENSE.md{% endif %}.jinja

@@ -0,0 +1,138 @@
+# Creative Commons CC0 1.0 Universal
+
+> NOTE: This license applies to the data contained in this data package,
+> not the code used, which is licensed under the MIT License.
+
+CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS INFORMATION
+ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES REGARDING THE
+USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED HEREUNDER, AND
+DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM THE USE OF THIS DOCUMENT
+OR THE INFORMATION OR WORKS PROVIDED HEREUNDER.
+
+## Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work
+of authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without
+fear of later claims of infringement build upon, modify, incorporate in
+other works, reuse and redistribute as freely as possible in any form
+whatsoever and for any purposes, including without limitation commercial
+purposes. These owners may contribute to the Commons to promote the
+ideal of a free culture and the further production of creative, cultural
+and scientific works, or to gain reputation or greater distribution for
+their Work in part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or
+she is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under
+its terms, with knowledge of his or her Copyright and Related Rights in
+the Work and the meaning and intended legal effect of CC0 on those
+rights.
+
+1.  **Copyright and Related Rights.** A Work made available under CC0
+    may be protected by copyright and related or neighboring rights
+    ("Copyright and Related Rights"). Copyright and Related Rights
+    include, but are not limited to, the following:
+
+    i.  the right to reproduce, adapt, distribute, perform, display,
+        communicate, and translate a Work;
+
+    ii. moral rights retained by the original author(s) and/or
+        performer(s);
+
+    iii. publicity and privacy rights pertaining to a person's image or
+         likeness depicted in a Work;
+
+    iv. rights protecting against unfair competition in regards to a
+        Work, subject to the limitations in paragraph 4(a), below;
+
+    v.  rights protecting the extraction, dissemination, use and reuse
+        of data in a Work;
+
+    vi. database rights (such as those arising under Directive 96/9/EC
+        of the European Parliament and of the Council of 11 March 1996
+        on the legal protection of databases, and under any national
+        implementation thereof, including any amended or successor
+        version of such directive); and
+
+    vii. other similar, equivalent or corresponding rights throughout
+         the world based on applicable law or treaty, and any national
+         implementations thereof.
+
+2.  **Waiver.** To the greatest extent permitted by, but not in
+    contravention of, applicable law, Affirmer hereby overtly, fully,
+    permanently, irrevocably and unconditionally waives, abandons, and
+    surrenders all of Affirmer's Copyright and Related Rights and
+    associated claims and causes of action, whether now known or unknown
+    (including existing as well as future claims and causes of action),
+    in the Work (i) in all territories worldwide, (ii) for the maximum
+    duration provided by applicable law or treaty (including future time
+    extensions), (iii) in any current or future medium and for any
+    number of copies, and (iv) for any purpose whatsoever, including
+    without limitation commercial, advertising or promotional purposes
+    (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+    member of the public at large and to the detriment of Affirmer's
+    heirs and successors, fully intending that such Waiver shall not be
+    subject to revocation, rescission, cancellation, termination, or any
+    other legal or equitable action to disrupt the quiet enjoyment of
+    the Work by the public as contemplated by Affirmer's express
+    Statement of Purpose.
+
+3.  **Public License Fallback.** Should any part of the Waiver for any
+    reason be judged legally invalid or ineffective under applicable
+    law, then the Waiver shall be preserved to the maximum extent
+    permitted taking into account Affirmer's express Statement of
+    Purpose. In addition, to the extent the Waiver is so judged Affirmer
+    hereby grants to each affected person a royalty-free, non
+    transferable, non sublicensable, non exclusive, irrevocable and
+    unconditional license to exercise Affirmer's Copyright and Related
+    Rights in the Work (i) in all territories worldwide, (ii) for the
+    maximum duration provided by applicable law or treaty (including
+    future time extensions), (iii) in any current or future medium and
+    for any number of copies, and (iv) for any purpose whatsoever,
+    including without limitation commercial, advertising or promotional
+    purposes (the "License"). The License shall be deemed effective as
+    of the date CC0 was applied by Affirmer to the Work. Should any part
+    of the License for any reason be judged legally invalid or
+    ineffective under applicable law, such partial invalidity or
+    ineffectiveness shall not invalidate the remainder of the License,
+    and in such case Affirmer hereby affirms that he or she will not (i)
+    exercise any of his or her remaining Copyright and Related Rights in
+    the Work or (ii) assert any associated claims and causes of action
+    with respect to the Work, in either case contrary to Affirmer's
+    express Statement of Purpose.
+
+4.  **Limitations and Disclaimers.**
+
+    a.  No trademark or patent rights held by Affirmer are waived,
+        abandoned, surrendered, licensed or otherwise affected by this
+        document.
+
+    b.  Affirmer offers the Work as-is and makes no representations or
+        warranties of any kind concerning the Work, express, implied,
+        statutory or otherwise, including without limitation warranties
+        of title, merchantability, fitness for a particular purpose, non
+        infringement, or the absence of latent or other defects,
+        accuracy, or the present or absence of errors, whether or not
+        discoverable, all to the greatest extent permissible under
+        applicable law.
+
+    c.  Affirmer disclaims responsibility for clearing rights of other
+        persons that may apply to the Work or any use thereof, including
+        without limitation any person's Copyright and Related Rights in
+        the Work. Further, Affirmer disclaims responsibility for
+        obtaining any necessary consents, permissions or other rights
+        required for any use of the Work.
+
+    d.  Affirmer understands and acknowledges that Creative Commons is
+        not a party to this document and has no duty or obligation with
+        respect to this CC0 or use of the Work.