Switch to configuration file for readthedocs

.readthedocs.yml

@@ -0,0 +1,12 @@
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+version: 2
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: doc/source/conf.py
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats: all
+
+conda:
+  environment: doc/rtd_environment.yml

doc/rtd_environment.yml

@@ -0,0 +1,22 @@
+name: readthedocs
+channels:
+  - conda-forge
+dependencies:
+  - python=3.7
+  - pip
+  - dask
+  - graphviz
+  - numpy
+  - pillow
+  - pyresample
+  - setuptools
+  - setuptools_scm
+  - setuptools_scm_git_archive
+  - sphinx
+  - sphinx_rtd_theme
+  - trollsift
+  - xarray
+  - zarr
+  - pip:
+    - graphviz
+    - ..  # relative path to the satpy project

doc/source/conf.py

@@ -69,7 +69,10 @@ def __getattr__(cls, name):
 for mod_name in MOCK_MODULES:
     sys.modules[mod_name] = Mock()
 
-autodoc_mock_imports = ['h5netcdf', 'pyninjotiff', 'pygac', 'cf', 'glymur', 'pyhdf', 'osgeo', 'mipp']
+autodoc_mock_imports = ['cf', 'glymur', 'h5netcdf', 'imageio', 'mipp', 'netCDF4',
+                        'pygac', 'pygrib', 'pyhdf', 'pyninjotiff',
+                        'pyorbital', 'pyspectral', 'rasterio', 'trollimage',
+                        'zarr']
 autoclass_content = 'both'  # append class __init__ docstring to the class docstring
 
 # -- General configuration -----------------------------------------------------