feat: add schema and validate-pyproject support

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

.pre-commit-config.yaml

@@ -35,7 +35,7 @@ repos:
   hooks:
   - id: mypy
     name: mypy 3.8 on cibuildwheel/
-    exclude: ^cibuildwheel/resources/.*py$
+    exclude: ^cibuildwheel/resources/.*py|bin/generate_schema.py$
     args: ["--python-version=3.8"]
     additional_dependencies: &mypy-dependencies
       - nox

bin/generate_schema.py

@@ -0,0 +1,233 @@
+#!/usr/bin/env python
+
+import json
+
+import yaml
+
+starter = """
+$id: https://github.com/pypa/cibuildwheel/blob/main/cibuildwheel/resources/cibuildwheel.schema.json
+$schema: http://json-schema.org/draft-07/schema
+additionalProperties: false
+description: cibulidwheel's settings.
+type: object
+properties:
+  archs:
+    description: Change the architectures built on your machine by default.
+    type: string_array
+  before-all:
+    description: Execute a shell command on the build system before any wheels are built.
+    type: string_array
+  before-build:
+    description: Execute a shell command preparing each wheel's build.
+    type: string_array
+  before-test:
+    description: Execute a shell command before testing each wheel.
+    type: string_array
+  build:
+    default: ['*']
+    description: Choose the Python versions to build.
+    type: string_array
+  build-frontend:
+    default: default
+    description: Set the tool to use to build, either "pip" (default for now) or "build"
+    oneOf:
+      - enum: [pip, build, default]
+      - type: string
+        pattern: '^pip; ?args:'
+      - type: string
+        pattern: '^build; ?args:'
+      - type: object
+        additionalProperties: false
+        required: [name]
+        properties:
+          name:
+            enum: [pip, build]
+          args:
+            type: array
+            items:
+              type: string
+  build-verbosity:
+    type: integer
+    minimum: -3
+    maximum: 3
+    default: 0
+    description: Increase/decrease the output of pip wheel.
+  config-settings:
+    description: Specify config-settings for the build backend.
+    type: string_table_array
+  container-engine:
+    oneOf:
+      - enum: [docker, podman]
+      - type: string
+        pattern: '^docker; ?create_args:'
+      - type: string
+        pattern: '^podman; ?create_args:'
+      - type: object
+        additionalProperties: false
+        required: [name]
+        properties:
+          name:
+            enum: [docker, podman]
+          create-args:
+            type: array
+            items:
+              type: string
+  dependency-versions:
+    default: pinned
+    description: Specify how cibuildwheel controls the versions of the tools it uses
+    type: string
+  environment:
+    description: Set environment variables needed during the build.
+    type: string_table
+  environment-pass:
+    description: Set environment variables on the host to pass-through to the container
+      during the build.
+    type: string_array
+  manylinux-aarch64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-i686-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-ppc64le-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-pypy_aarch64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-pypy_i686-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-pypy_x86_64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-s390x-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  manylinux-x86_64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  musllinux-aarch64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  musllinux-i686-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  musllinux-ppc64le-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  musllinux-s390x-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  musllinux-x86_64-image:
+    type: string
+    description: Specify alternative manylinux / musllinux container images
+  repair-wheel-command:
+    type: string_array
+    description: Execute a shell command to repair each built wheel.
+  skip:
+    description: Choose the Python versions to skip.
+    type: string_array
+  test-command:
+    description: Execute a shell command to test each built wheel.
+    type: string_array
+  test-extras:
+    description: Install your wheel for testing using `extras_require`
+    type: string_array
+  test-requires:
+    description: Install Python dependencies before running the tests
+    type: string_array
+  test-skip:
+    description: Skip running tests on some builds.
+    type: string_array
+"""
+
+schema = yaml.safe_load(starter)
+
+string_array = yaml.safe_load(
+    """
+- type: string
+- type: array
+  items:
+    type: string
+"""
+)
+
+string_table_array = yaml.safe_load(
+    """
+- type: string
+- patternProperties:
+    .+:
+      oneOf:
+        - type: string
+        - type: array
+          items:
+            type: string
+"""
+)
+
+string_table = yaml.safe_load(
+    """
+- type: string
+- patternProperties:
+    .+:
+      - type: string
+"""
+)
+
+for key, value in schema["properties"].items():
+    value["title"] = f'CIBW_{key.replace("-", "_").upper()}'
+    match value:
+        case {"type": "string_array"}:
+            del value["type"]
+            value["oneOf"] = string_array
+        case {"type": "string_table"}:
+            del value["type"]
+            value["oneOf"] = string_table
+        case {"type": "string_table_array"}:
+            del value["type"]
+            value["oneOf"] = string_table_array
+
+overrides = yaml.safe_load(
+    """
+type: array
+description: An overrides array
+items:
+  type: object
+  required: ["select"]
+  additionalProperties: false
+  properties:
+    select: {}
+"""
+)
+
+limited = schema["properties"].copy()
+del limited["build"]
+del limited["skip"]
+
+overrides["items"]["properties"]["select"]["oneOf"] = string_array
+overrides["items"]["properties"] |= limited.copy()
+
+del limited["archs"]
+
+not_linux = limited.copy()
+
+del not_linux["environment-pass"]
+del not_linux["container-engine"]
+for key in list(not_linux):
+    if "linux-" in key:
+        del not_linux[key]
+
+oses = {"linux": limited.copy(), "windows": not_linux.copy(), "macos": not_linux.copy()}
+
+oses["linux"]["repair-wheel-command"]["default"] = "auditwheel repair -w {dest_dir} {wheel}"
+oses["macos"]["repair-wheel-command"][
+    "default"
+] = "delocate-wheel --require-archs {delocate_archs} -w {dest_dir} -v {wheel}"
+
+del oses["linux"]["dependency-versions"]
+
+schema["properties"]["overrides"] = overrides
+schema["properties"] |= oses
+
+print(json.dumps(schema, indent=2))