ci: Add dev environment

pixi.toml

@@ -13,16 +13,17 @@ sync-git-tags = 'python scripts/sync_git_tags.py holoviews'
 PYTHONIOENCODING = "utf-8"
 
 [environments]
-test-39 = ["py39", "test-core", "test", "example", "test-example", "test-unit-task"]
-test-310 = ["py310", "test-core", "test", "example", "test-example", "test-unit-task"]
-test-311 = ["py311", "test-core", "test", "example", "test-example", "test-unit-task"]
-test-312 = ["py312", "test-core", "test", "example", "test-example", "test-unit-task"]
-test-ui = ["py312", "test-core", "test", "test-ui"]
+test-39 = ["py39", "optional", "test-core", "test-example", "test-unit-task"]
+test-310 = ["py310", "optional", "test-core", "test-example", "test-unit-task"]
+test-311 = ["py311", "optional", "test-core", "test-example", "test-unit-task"]
+test-312 = ["py312", "optional", "test-core", "test-example", "test-unit-task"]
+test-ui = ["py312", "optional", "test-core", "test-ui"]
 test-core = ["py313", "test-core", "test-unit-task"]
-test-gpu = ["py312", "test-core", "test", "test-gpu"]
-docs = ["py311", "example", "doc"]
+test-gpu = ["py312", "test-core", "optional", "test-gpu"]
+docs = ["py311", "optional", "doc"]
 build = ["py311", "build"]
 lint = ["py311", "lint"]
+dev = ["py312", "optional", "test-core", "test-example", "test-unit-task", "test-ui", "lint"]
 
 [dependencies]
 nomkl = "*"
@@ -57,13 +58,17 @@ bokeh_sampledata = "*"
 python = "3.13.*"
 bokeh_sampledata = "*"
 
-[feature.example.dependencies]
+[feature.optional.dependencies]
 cftime = "*"
+contourpy = "*"
 dask-core = "*"
+dask-expr = "*"
 datashader = ">=0.11.1"
 ffmpeg = "*"
+ibis-sqlite = "*"
 ipython = ">=5.4.0"
 matplotlib-base = ">=3"
+nbconvert = "*"
 netcdf4 = "*"
 networkx = "*"
 notebook = "*"
@@ -72,10 +77,16 @@ plotly = ">=4.0"
 pooch = "*"
 pyarrow = "*"
 scikit-image = "*"
-scipy = "*"
+scipy = ">=1.10" # Python 3.9 + Windows downloads 1.9
+selenium = "*"
 shapely = "*"
+spatialpandas = "*"
 streamz = ">=0.5.0"
 xarray = ">=0.10.4"
+xyzservices = "*"
+
+[feature.optional.target.unix.dependencies]
+tsdownsample = "*" # currently not available on Windows
 
 # =============================================
 # =================== TESTS ===================
@@ -89,32 +100,9 @@ pytest-github-actions-annotate-failures = "*"
 pytest-rerunfailures = "*"
 pytest-xdist = "*"
 
-[feature.test-unit-task.tasks] # So it is not showing up in the test-ui environment
+[feature.test-unit-task.tasks] # So it is not showing up in the test-gpu + test-ui environment
 test-unit = 'pytest holoviews/tests -n logical --dist loadgroup'
 
-[feature.test.dependencies]
-cftime = "*"
-contourpy = "*"
-dask-core = "*"
-dask-expr = "*"
-datashader = ">=0.11.1"
-ffmpeg = "*"
-ibis-sqlite = "*"
-nbconvert = "*"
-matplotlib-base = ">=3"
-networkx = "*"
-plotly = ">=4.0"
-pillow = "*"
-scipy = ">=1.10" # Python 3.9 + Windows downloads 1.9
-selenium = "*"
-shapely = "*"
-spatialpandas = "*"
-xarray = ">=0.10.4"
-xyzservices = "*"
-
-[feature.test.target.unix.dependencies]
-tsdownsample = "*" # currently not available on Windows
-
 [feature.test-example.tasks]
 test-example = { cmd = 'pytest -n logical --dist loadscope --nbval-lax examples', env = { DASK_DATAFRAME__QUERY_PLANNING = "False" } }