[INFRA] Introduce metaschema (#1787)

* add metaschema and code to validate it.

* WIP metaschema and code to validate

* update schema

* objects finished

* add rules

* add checks

* add rules.files.common

* add files.common.core and files.common.tables

* add rules.files.deriv

* dereferencing working

* checkpoint

* checkpoint

* add rules.sidecars

* sidecar derivatives checkpoint

* tabular_data checkpoint

* DONE!

* DONE!

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix typo

* blackify

* include references to draft7 metaschema

* move metaschema

* add tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* move things around

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* Update tools/schemacode/bidsschematools/validate_schema.py

Co-authored-by: Taylor Salo <[email protected]>

* fix typo

* add jsonschema to deps

* fixing up checks

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* install jsonschema types

* fix pathing

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* flake8

* try changing schema path

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* fix paths

* use existing functions

* convert from namespace

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* update fields for existing loader

* fix required props

* ENH: Link metaschema into package data

* RF: Use package data instead of relying on CWD

* STY: Import from top-level jsonschema

* PY38: importlib_resources

* use "deprecated" instead of "DEPRECATED"

* move to schema.py and test_schema.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update src/schema/objects/common_principles.yaml

* Update README.md

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Taylor Salo <[email protected]>
Co-authored-by: Chris Markiewicz <[email protected]>

.pre-commit-config.yaml

@@ -68,5 +68,6 @@ repos:
           - pytest
           - types-PyYAML
           - types-tabulate
+          - types-jsonschema
         args: ["tools/schemacode/bidsschematools"]
         pass_filenames: false