From 58fe88f4d44d590ebdd4d1e1f6c2fecfb063261f Mon Sep 17 00:00:00 2001
From: Stephen Rosen <sirosen0@gmail.com>
Date: Sat, 17 Oct 2026 01:21:56 -0500
Subject: [PATCH] Convert from setuptools to flit-core

---
 CHANGELOG.rst  |  1 +
 MANIFEST.in    | 34 ----------------------------------
 pyproject.toml | 26 ++++++++++++++++++--------
 3 files changed, 19 insertions(+), 42 deletions(-)
 delete mode 100644 MANIFEST.in

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 621f04b6e..4612b45ca 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -12,6 +12,7 @@ Unreleased
 
 - Added support for Python 3.15 .
 - Removed support for Python 3.10 .
+- The build backend has been updated from setuptools to flit.
 
 0.38.2
 ------
diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index 82bd5c5c1..000000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,34 +0,0 @@
-## Core Package Requirements
-
-# data files in the distribution
-include src/check_jsonschema/builtin_schemas/vendor/*
-include src/check_jsonschema/builtin_schemas/vendor/licenses/*
-include src/check_jsonschema/builtin_schemas/vendor/sha256/*
-include src/check_jsonschema/builtin_schemas/custom/*.json
-
-## Testing Requirements
-
-# include all test files and test data files
-recursive-include tests *.py *.json *.yaml *.yml *.json5 *.toml *.cff
-
-# the test runner
-include tox.ini
-
-# needed as a data file for the tests (several tests check integrity
-# against this file)
-include .pre-commit-hooks.yaml
-
-# tools, automation, and project maintenance
-include CHANGELOG.rst
-include CONTRIBUTING.md
-include justfile
-include scripts/*.py
-include .coveragerc
-include .flake8
-
-
-## Final Cleanup
-# remove files which may be accidentally introduced by `*` and recursive patterns
-
-prune **/__pycache__
-global-exclude *.py[cod]
diff --git a/pyproject.toml b/pyproject.toml
index 5b0f29eaa..09729cd45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
-requires = ["setuptools>=61.2"]
-build-backend = "setuptools.build_meta"
+requires = ["flit-core>=3.12.0"]
+build-backend = "flit_core.buildapi"
 
 [dependency-groups]
 dev = [
@@ -55,12 +55,22 @@ Homepage = "https://github.com/python-jsonschema/check-jsonschema"
 [project.scripts]
 check-jsonschema = "check_jsonschema:main"
 
-[tool.setuptools]
-include-package-data = true
-
-[tool.setuptools.packages.find]
-where = ["src"]
-namespaces = false
+[tool.flit.sdist]
+include = [
+    "CHANGELOG.rst",
+    ".github/CONTRIBUTING.md",
+    ".github/AI_POLICY.md.md",
+    "tests/**/*",
+    # needed as a data file for the tests (several tests check integrity
+    # against this file)
+    ".pre-commit-hooks.yaml",
+    ".flake8",
+    ".coveragerc",
+    "justfile",
+    "tox.ini",
+    "toxfile.py",
+]
+exclude = ["**/*/.*", "**/*.egg-info", "**/__pycache__", "scripts/*"]
 
 [tool.check-sdist]
 git-only = ["RELEASING.md", ".gitignore", "docs/*"]