[yarikoptic]

Summary

This covers the "this repository itself" item of

• Adopt REUSE formalization for licenses specification #2015

It makes the repository's existing licensing machine-readable under REUSE: it adds LICENSES/, a REUSE.toml, and a reuse pre-commit hook. Nothing is relicensed. The annotations only record what the repository already declares:

Path	License	Copyright	Source of the declaration
** (default)	CC-BY-4.0	2016-2026 BIDS Contributors	root LICENSE, CITATION.cff, mkdocs.yml
tools/schemacode/**	MIT	2020-2026 Brain Imaging Data Structure	tools/schemacode/LICENSE, its pyproject.toml
BIDS_logo/bids-animated.webm	CC-BY-SA-4.0	2021 Adina Wagner	BIDS_logo/README.md

reuse lint reports 365/365 files compliant with REUSE 3.3.

Question for maintainers: license of the remaining code

Apart from bidsschematools, the repository has more code: tools/*.py, tools/mkdocs_macros_bids/, tools/typescript/, tools/examplecode/, scripts/, and pdf_build_src/. This code has no license of its own, so the root CC-BY-4.0 applies to it, and this PR records it that way. CC licenses are not recommended for software.

Should this code move to MIT, the same as bidsschematools?

That is a relicensing decision. It is not part of this PR. The files date from 2020–2026 and have between 1 and 9 authors each, so the change would need agreement from those contributors. With agreement, the change is one more [[annotations]] block in REUSE.toml.

Details

• Years: CC-BY-4.0 starts at 2016, the BIDS 1.0.0 release (the spec existed as a Google Doc before it moved to git in 2018). bidsschematools starts at 2020, when schemacode/ first appears in history, although its LICENSE file says 2022 (the year that file was added in MIT license document #1207).
• License texts: the CC texts are the canonical files from creativecommons.org legalcode.txt. MIT.txt comes from reuse download (the SPDX list). The root LICENSE and tools/schemacode/LICENSE are unchanged; they differ from the LICENSES/ copies only in the copyright line and whitespace.
• pre-commit: adds the reuse hook from codeberg.org/fsfe/reuse-tool, frozen at v6.2.0, which lints the whole repository. pre-commit.ci will enforce it.
• README: adds a short Licensing section.

Test plan

• uvx --from reuse reuse lint: compliant
• pre-commit run reuse --all-files: passed
• Spot-checked reuse spdx: schemacode files resolve to MIT, the animated logo to CC-BY-SA-4.0, and the rest to CC-BY-4.0
• Maintainers decide on the code-licensing question above (can be a follow-up issue)
• Depending on above, remove exclude-from-changelog label ;-)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.09%. Comparing base (8973fdf) to head (9c67986).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2564   +/-   ##
=======================================
  Coverage   83.09%   83.09%           
=======================================
  Files          22       22           
  Lines        1698     1698           
=======================================
  Hits         1411     1411           
  Misses        287      287           

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