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feat: JSON Schema for commitizen configuration (issue #1565) - #2067

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FreakyAdy wants to merge 3 commits into
commitizen-tools:masterfrom
FreakyAdy:feat/cz-json-schema
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feat: JSON Schema for commitizen configuration (issue #1565)#2067
FreakyAdy wants to merge 3 commits into
commitizen-tools:masterfrom
FreakyAdy:feat/cz-json-schema

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Implements a JSON Schema for the commitizen configuration ([tool.commitizen] section in pyproject.toml, or commitizen key in .cz.json/.cz.yaml).

Summary:

  • Generates schema from Settings and CzSettings TypedDicts in commitizen.defaults plus DEFAULT_SETTINGS runtime defaults
  • Script: scripts/gen_json_schema.py (run manually or via CI --check flag)
  • Committed schema: schemas/commitizen-config.schema.json (points to https://json.schemastore.org/commitizen.json for future schemastore.org release)
  • 18 tests in tests/test_json_schema.py validating generation, type mapping, defaults, and validation

Scope (per maintainer discussion in #1565):

  • Initial goal: release schema to schemastore.org so IDEs can auto-pick it up
  • Schema describes the commitizen section: [tool.commitizen] table in pyproject.toml (referenced with #:schema comment) or commitizen key in .cz.json/.cz.yaml (referenced with $schema key)
  • Covers all Settings keys + nested customize (CzSettings)
  • Unknown keys permitted (extras, future plugin settings)

Testing:

  • All 18 tests pass
  • uv run ruff check --fix . clean
  • uv run ruff format . clean
  • Full test suite green locally

Agent disclosure: This PR was developed with AI assistance (Hermes Agent).

…ools#1565)

- Add scripts/gen_json_schema.py: generates schema from Settings/CzSettings TypedDicts
- Add tests/test_json_schema.py: 18 tests validating schema generation, type mapping, defaults, and validation
- Add schemas/commitizen-config.schema.json: committed schema (schemastore.org-compatible)
- Update pyproject.toml: add jsonschema dependency to test group

The schema covers all config keys under [tool.commitizen] including nested customize.
All tests pass, ruff clean.
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codecov Bot commented Aug 15, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.07%. Comparing base (93c7b51) to head (2b0b64b).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files
@@            Coverage Diff             @@
##           master    #2067      +/-   ##
==========================================
+ Coverage   98.24%   99.07%   +0.82%     
==========================================
  Files          61       61              
  Lines        2799     2799              
==========================================
+ Hits         2750     2773      +23     
+ Misses         49       26      -23     

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Pull request overview

Adds JSON Schema generation, validation tests, documentation, and dependencies for Commitizen configuration.

Changes:

  • Adds schema generation and drift checking.
  • Commits the generated configuration schema.
  • Adds schema validation tests and documentation.
  • Adds JSON Schema tooling dependencies.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 7 comments.

Show a summary per file
File Review summary
uv.lock Missing the newly required types-jsonschema dependency, causing frozen CI installs to fail.
tests/test_json_schema.py Adds schema generation and validation coverage.
scripts/gen_json_schema.py Requires wrapper-schema support and stricter validation for question objects.
schemas/README.md Documents the schema location and usage.
schemas/commitizen-config.schema.json Needs wrapper support, broader question types and choices, and an optional confirm default.
pyproject.toml Adds types-jsonschema, which is not reflected in the lockfile.
Suppressed comments (1)

tests/test_json_schema.py:77

  • CI will not run this drift test for schema- or generator-only edits: pythonpackage.yml's path filter only treats commitizen/**, tests/**, and .github/workflows/** as relevant (.github/workflows/pythonpackage.yml:23-26), excluding schemas/** and scripts/**. A stale committed schema can therefore bypass the check. Add these paths or an unconditional schema check.
def test_generated_schema_matches_committed_file(gen_module: Any) -> None:
    """The committed schema must be regenerated whenever the models change."""
    expected = SCHEMA_PATH.read_text(encoding="utf-8")
    actual = json.dumps(gen_module.generate_schema(), indent=2) + "\n"


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Comment thread pyproject.toml
"types-PyYAML>=5.4.3",
"types-termcolor>=0.1.1",
"types-colorama>=0.4.15.20240311",
"types-jsonschema>=4.26.0",
Comment on lines +6 to +7
"type": "object",
"properties": {
Comment on lines +114 to +118
"type": {
"enum": [
"list"
]
},
Comment on lines +125 to +129
"choices": {
"type": "array",
"items": {
"type": "object",
"properties": {
Comment on lines +182 to +187
"required": [
"default",
"message",
"name",
"type"
]
Comment on lines +256 to +259
"type": "object",
"properties": settings_schema["properties"],
"additionalProperties": True,
}
Comment on lines +145 to +149
schema: dict[str, Any] = {"type": "object", "properties": properties}
required = sorted(getattr(typed_dict, "__required_keys__", ()))
if required:
schema["required"] = required
return schema
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2 participants