address review

.github/workflows/diff_shades.yml

@@ -33,6 +33,7 @@ jobs:
         id: set-config
         env:
           GITHUB_TOKEN: ${{ github.token }}
+          HATCH_BUILD_HOOKS_ENABLE: "1"
         run: >
           python scripts/diff_shades_gha_helper.py config ${{ github.event_name }} ${{ matrix.mode }}
 
@@ -41,6 +42,7 @@ jobs:
     needs: configure
     runs-on: ubuntu-latest
     env:
+      HATCH_BUILD_HOOKS_ENABLE: "1"
       # Clang is less picky with the C code it's given than gcc (and may
       # generate faster binaries too).
       CC: clang-12
@@ -80,10 +82,9 @@ jobs:
         if: steps.baseline-cache.outputs.cache-hit != 'true'
         env:
           GITHUB_TOKEN: ${{ github.token }}
-          HATCH_BUILD_HOOKS_ENABLE: "1"
         run: >
           ${{ matrix.baseline-setup-cmd }}
-          && python -m pip install . && rm dist -r
+          && python -m pip install .
 
       - name: Analyze baseline revision
         if: steps.baseline-cache.outputs.cache-hit != 'true'
@@ -94,7 +95,6 @@ jobs:
       - name: Build and install target revision
         env:
           GITHUB_TOKEN: ${{ github.token }}
-          HATCH_BUILD_HOOKS_ENABLE: "1"
         run: >
           ${{ matrix.target-setup-cmd }}
           && python -m pip install .

CHANGES.md

@@ -69,7 +69,8 @@
 
 <!-- Changes to how Black is packaged, such as dependency requirements -->
 
-- Hatchling is now used as the build backend. (#3233)
+- Hatchling is now used as the build backend. This will not have any effect for users
+  who install Black with its wheels from PyPI. (#3233)
 
 ### Parser
 

pyproject.toml

@@ -97,12 +97,10 @@ Homepage = "https://github.com/psf/black"
 
 [tool.hatch.metadata.hooks.fancy-pypi-readme]
 content-type = "text/markdown"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-path = "README.md"
-
-[[tool.hatch.metadata.hooks.fancy-pypi-readme.fragments]]
-path = "CHANGES.md"
+fragments = [
+  { path = "README.md" },
+  { path = "CHANGES.md" },
+]
 
 [tool.hatch.version]
 source = "vcs"
@@ -126,6 +124,8 @@ dependencies = [
 ]
 require-runtime-dependencies = true
 exclude = [
+  # There's no good reason for blackd to be compiled.
+  "/src/blackd",
   # Not performance sensitive, so save bytes + compilation time:
   "/src/blib2to3/__init__.py",
   "/src/blib2to3/pgen2/__init__.py",