Specify docs hatch env for v3 branch (zarr-developers#1655)

* Revert README changes

* Specify docs hatch env

* Add clean script

* Update for readthedocs

* Use hatch features

.readthedocs.yaml

@@ -4,16 +4,12 @@ build:
   os: ubuntu-20.04
   tools:
     python: "3.10"
+  commands:
+    - pip install hatch
+    - hatch run docs:rtd
 
 sphinx:
   configuration: docs/conf.py
   fail_on_warning: true
 
-python:
-  install:
-    - method: pip
-      path: .
-      extra_requirements:
-        - docs
-
 formats: all

README-v3.md

@@ -14,14 +14,6 @@ git remote add upstream https://github.com/zarr-developers/zarr-python
 git fetch upstream
 git checkout --track upstream/v3
 ```
-## Set the environment variables for V3
-
-There are a couple environment variables required for enabling V3:
-
-```
-export ZARR_V3_EXPERIMENTAL_API=1
-export ZARR_V3_SHARDING=1
-```
 
 ## Set up your environment
 

pyproject.toml

@@ -44,6 +44,7 @@ jupyter = [
 ]
 docs = [
     'sphinx',
+    'sphinx-autobuild>=2021.3.14',
     'sphinx-automodapi',
     'sphinx_design',
     'sphinx-issues',
@@ -95,6 +96,14 @@ run-coverage = "pytest --cov-config=pyproject.toml --cov=pkg --cov=tests"
 run = "run-coverage --no-cov"
 run-verbose = "run-coverage --verbose"
 
+[tool.hatch.envs.docs]
+features = ['docs']
+
+[tool.hatch.envs.docs.scripts]
+build = "sphinx-build docs/ docs/_build/"
+rtd = "sphinx-build docs/ _readthedocs/html/"
+serve = "sphinx-autobuild docs docs/_build --ignore 'docs/_autoapi/**/*' --host 0.0.0.0"
+
 [tool.ruff]
 line-length = 100
 exclude = [