🏗️ uv build backend update (#232)

Co-authored-by: Anthony Wu <pls-file-gh-issue@users.noreply.github.com>

.github/workflows/release.yml

@@ -14,33 +14,35 @@ jobs:
     permissions:
       contents: write
       pull-requests: read
-    
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-        
+        with:
+          fetch-depth: 0 # Need full history for git operations
+
       - name: Validate confirmation
         run: |
           if [ "${{ github.event.inputs.confirm }}" != "publish" ]; then
             echo "❌ Must type 'publish' to confirm release"
             exit 1
           fi
-        
+
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
-          
+          python-version: "3.10"
+
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install requests build twine toml
-          
+          python -m pip install --upgrade uv twine toml requests
+
       - name: Configure Git
         run: |
           git config --global user.name "GitHub Actions"
           git config --global user.email "actions@github.com"
-          
+
       - name: Run release script
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Makefile

@@ -97,6 +97,22 @@ test: ensure-pytest
 	$(PYTHON) -m pytest
 	# ✅ Tests completed
 
+
+# Run uv build and check dist sizes for optimized user installs
+.PHONE: build
+build:
+	rm -rf dist/mflux-*
+	# fresh build
+	uv build
+	# check the artifact sizes - we expect < 1MB
+	du -sh dist/*
+	# create a temp directory for extraction
+	# then find/list the largest 5 files - we should not see image artifacts
+	@TEMP_DIR=$$(mktemp -d -t mflux-dist) && \
+	mkdir -p "$$TEMP_DIR/this-build" && \
+	tar -xzf dist/mflux-*.tar.gz -C "$$TEMP_DIR/this-build" && \
+	find "$$TEMP_DIR/this-build" -type f -exec du -h {} \; | sort -rh | head -n 5
+
 # Clean up
 .PHONY: clean
 clean:

pyproject.toml

@@ -1,10 +1,21 @@
 [build-system]
-requires = ["setuptools>=42", "wheel"]
-build-backend = "setuptools.build_meta"
+requires = ["uv_build>=0.7.19,<0.8.0"]
+build-backend = "uv_build"
+
+[tool.uv.build-backend]
+default-excludes = true  # __pycache__, *.pyc, and *.pyo
+source-exclude = [
+    # documentation assets were 27MB on 2025-07-05
+    "**/assets/**",
+    # dreambooth examples ~=5MB on 2025-07-05
+    "**/dreambooth/_example/images/**",
+    # loss pdf/tex does not need to be distributed
+    "**/optimization/_loss_derivation/**",
+]
 
 [project]
 name = "mflux"
-version = "0.9.1"
+version = "0.9.2"
 description = "A MLX port of FLUX based on the Huggingface Diffusers implementation."
 readme = "README.md"
 keywords = ["diffusers", "flux", "mlx"]
@@ -74,9 +85,6 @@ mflux-upscale = "mflux.upscale:main"
 mflux-lora-library = "mflux.lora_library:main"
 mflux-completions = "mflux.completions.install:main"
 
-[tool.setuptools.packages.find]
-where = ["src"]
-include = ["mflux*"]
 
 [tool.ruff]
 line-length = 120

scripts/release.py

@@ -175,12 +175,6 @@ class ReleaseManager:
         return result
 
     def build_package(self):
-        # Install build dependencies
-        self.run_command(
-            [sys.executable, "-m", "pip", "install", "--upgrade", "pip", "build", "twine"],
-            "Installing build dependencies",
-        )
-
         # Clean dist directory to ensure fresh build
         import shutil
 
@@ -190,7 +184,8 @@ class ReleaseManager:
             print("🧹 Cleaned dist/ directory")
 
         # Build the package
-        self.run_command([sys.executable, "-m", "build"], "Building package")
+        self.run_command([sys.executable, "-m", "uv", "--version"], "Verify 'uv build' version")
+        self.run_command([sys.executable, "-m", "uv", "build"], "Building package with 'uv build'")
 
     def verify_package(self):
         """Run *twine check* to verify that README / long_description renders on PyPI."""