Add --clip-negative-radiances flag to ABI L1b reader

polar2grid/core/script_utils.py

@@ -46,11 +46,6 @@
 import sys
 from collections import defaultdict
 
-try:
-    from argparse import BooleanOptionalAction
-except ImportError:
-    BooleanOptionalAction = None
-
 LOG = logging.getLogger(__name__)
 
 
@@ -310,53 +305,4 @@
         action="store_true",
         help="exit on first error including non-fatal errors",
     )
     return parser
-
-
-# Backport of BooleanOptionalAction (added in Python 3.9)
-class _BooleanOptionalAction(argparse.Action):
-    def __init__(
-        self,
-        option_strings,
-        dest,
-        const=None,
-        default=None,
-        type=None,
-        choices=None,
-        required=False,
-        help=None,
-        metavar=None,
-    ):
-        _option_strings = []
-        for option_string in option_strings:
-            _option_strings.append(option_string)
-
-            if option_string.startswith("--"):
-                option_string = "--no-" + option_string[2:]
-                _option_strings.append(option_string)
-
-        if help is not None and default is not None:
-            help += f" (default: {default})"
-
-        super().__init__(
-            option_strings=_option_strings,
-            dest=dest,
-            nargs=0,
-            default=default,
-            type=type,
-            choices=choices,
-            required=required,
-            help=help,
-            metavar=metavar,
-        )
-
-    def __call__(self, parser, namespace, values, option_string=None):
-        if option_string in self.option_strings:
-            setattr(namespace, self.dest, not option_string.startswith("--no-"))
-
-    def format_usage(self):
-        return " | ".join(self.option_strings)
-
-
-if BooleanOptionalAction is None:
-    BooleanOptionalAction = _BooleanOptionalAction

polar2grid/readers/abi_l1b.py

@@ -98,7 +98,7 @@
 
 from __future__ import annotations
 
-from argparse import ArgumentParser, _ArgumentGroup
+from argparse import ArgumentParser, BooleanOptionalAction, _ArgumentGroup
 from typing import Optional
 
 from ._base import ReaderProxyBase
@@ -142,4 +142,10 @@ def add_reader_argument_groups(
     """
     if group is None:
         group = parser.add_argument_group(title="ABI L1b Reader")
+    group.add_argument(
+        "--clip-negative-radiances",
+        action=BooleanOptionalAction,
+        default=True,
+        help="Clip negative radiances for IR bands. Default is to perform the clipping.",
+    )
     return group, None

polar2grid/readers/ahi_hsd.py

@@ -96,10 +96,9 @@
 
 from __future__ import annotations
 
-from argparse import ArgumentParser, _ArgumentGroup
+from argparse import ArgumentParser, BooleanOptionalAction, _ArgumentGroup
 from typing import Optional
 
-from ..core.script_utils import BooleanOptionalAction
 from ._base import ReaderProxyBase
 
 PREFERRED_CHUNK_SIZE: int = 2200  # one segment

polar2grid/writers/awips_tiled.py

@@ -82,8 +82,8 @@
 
 """
 import logging
+from argparse import BooleanOptionalAction
 
-from polar2grid.core.script_utils import BooleanOptionalAction
 from polar2grid.utils.legacy_compat import convert_p2g_pattern_to_satpy
 
 LOG = logging.getLogger(__name__)

polar2grid/writers/geotiff.py

@@ -41,9 +41,10 @@
 import argparse
 import logging
 import os
+from argparse import BooleanOptionalAction
 
 from polar2grid.core.dtype import NUMPY_DTYPE_STRS, int_or_float, str_to_dtype
-from polar2grid.core.script_utils import BooleanOptionalAction, NumpyDtypeList
+from polar2grid.core.script_utils import NumpyDtypeList
 from polar2grid.utils.legacy_compat import convert_p2g_pattern_to_satpy
 
 LOG = logging.getLogger(__name__)