Identify and list all deprecations + iris.FUTURE options to be removed

[lbdreyer]

Start by assuming all will be removed from v2.0

[lbdreyer]

Deprecations

Deprecated modules:

• [x] lib/iris/fileformats/ff.py
• [x] lib/iris/fileformats/pp_packing.py
• [x] lib/iris/proxy.py
• [x] lib/iris/experimental/fieldsfile.py
• [x] lib/iris/analysis/interpolate.py
• [x] lib/iris/unit.py

Other deprecated functions, classes, kwargs etc

In lib/iris/fileformats/pp.py

• [x] BitwiseInt
• [x] _LBProc.__len__
• [x] _LBProc.__getitem__
• [x] _LBProc.__setitem__
• [x] reset_load_rules
• [x] add_save_rules
• [x] reset_save_rules
• [x] as_pairs

In lib/iris/fileformats/netcdf.py Both of these are to do with the change of the iris.FUTURE.netcdf_no_unlimited setting

• [x] Saver.write
• [x] save

In lib/iris/fileformats/_ff.py (not deprecated but get rid of the information in each of their doc strings saying that it's deprecated)

• [x] Grid, ArakawaC, NewDynamics, ENDGame, FFHeader, load_cubes

In lib/iris/fileformats/rules.py

• [x] DebugString
• [x] CMAttribute
• [x] CMCustomAttribute
• [x] CoordAndDims
• [x] calculate_forecast_period
• [x] Rule
• [x] FunctionRule
• [x] ProcedureRule
• [x] RulesContainer
• [ ] Loader (not deprecated?)

In lib/iris/cube.py

• [x] Cube.coords: name and coordkwargs
• [x] Cube.assert_valid
• [x] Cube.add_history
• [x] line 3189 doc string includes deprecation warning regarding interpolate/regird api, remove section

In config.py

• [x] SAMPLE_DATA_DIR (!!!)
• [x] RULE_LOG_DIR
• [x] RULE_LOG_IGNORE

In lib/iris/analysis/calculus.py

• [x] curl: ignore argument deprecated

In lib/iris/analysis/maths.py

• [x] _add_subtract_common: ignore argument

In lib/iris/analysis/_interpolate_private.py

• [x] nearest_neighbour_indices
• [x] extract_nearest_neighbour
• [x] nearest_neighbour_data_value
• [x] regrid
• [x] regrid_to_max_resolution
• [x] linear

In lib/iris/util.py

• [x] broadcast_weights
• [x] ensure_array
• [x] _Timers