Deprecate --no-binary disabling the wheel cache

Author: sbidoul

src/pip/_internal/cache.py

@@ -221,7 +221,11 @@ class WheelCache(Cache):
     when a certain link is not found in the simple wheel cache first.
     """
 
-    def __init__(self, cache_dir: str, format_control: FormatControl) -> None:
+    def __init__(
+        self, cache_dir: str, format_control: Optional[FormatControl] = None
+    ) -> None:
+        if format_control is None:
+            format_control = FormatControl()
         super().__init__(cache_dir, format_control, {"binary"})
         self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
         self._ephem_cache = EphemWheelCache(format_control)

src/pip/_internal/cli/cmdoptions.py

@@ -1007,7 +1007,12 @@ def check_list_path_option(options: Values) -> None:
     metavar="feature",
     action="append",
     default=[],
-    choices=["2020-resolver", "fast-deps", "truststore"],
+    choices=[
+        "2020-resolver",
+        "fast-deps",
+        "truststore",
+        "no-binary-enable-wheel-cache",
+    ],
     help="Enable new functionality, that may be backward incompatible.",
 )
 

src/pip/_internal/commands/install.py

@@ -29,7 +29,10 @@
 from pip._internal.req import install_given_reqs
 from pip._internal.req.req_install import InstallRequirement
 from pip._internal.utils.compat import WINDOWS
-from pip._internal.utils.deprecation import LegacyInstallReasonFailedBdistWheel
+from pip._internal.utils.deprecation import (
+    LegacyInstallReasonFailedBdistWheel,
+    deprecated,
+)
 from pip._internal.utils.distutils_args import parse_distutils_args
 from pip._internal.utils.filesystem import test_writable_dir
 from pip._internal.utils.logging import getLogger
@@ -326,8 +329,6 @@ def run(self, options: Values, args: List[str]) -> int:
             target_python=target_python,
             ignore_requires_python=options.ignore_requires_python,
         )
-        wheel_cache = WheelCache(options.cache_dir, options.format_control)
-
         build_tracker = self.enter_context(get_build_tracker())
 
         directory = TempDirectory(
@@ -339,6 +340,25 @@ def run(self, options: Values, args: List[str]) -> int:
         try:
             reqs = self.get_requirements(args, options, finder, session)
 
+            if "no-binary-enable-wheel-cache" in options.features_enabled:
+                # TODO: remove format_control from WheelCache when the deprecation cycle
+                # is over
+                wheel_cache = WheelCache(options.cache_dir)
+            else:
+                if options.format_control.no_binary:
+                    deprecated(
+                        reason=(
+                            "--no-binary currently disables reading from "
+                            "the cache of locally built wheels. In the future "
+                            "--no-binary will not influence the wheel cache."
+                        ),
+                        replacement="to use the --no-cache-dir option",
+                        feature_flag="no-binary-enable-wheel-cache",
+                        issue=11453,
+                        gone_in=None,
+                    )
+                wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
             # Only when installing is it permitted to use PEP 660.
             # In other circumstances (pip wheel, pip download) we generate
             # regular (i.e. non editable) metadata and wheels.

src/pip/_internal/commands/wheel.py

@@ -11,6 +11,7 @@
 from pip._internal.exceptions import CommandError
 from pip._internal.operations.build.build_tracker import get_build_tracker
 from pip._internal.req.req_install import InstallRequirement
+from pip._internal.utils.deprecation import deprecated
 from pip._internal.utils.misc import ensure_dir, normalize_path
 from pip._internal.utils.temp_dir import TempDirectory
 from pip._internal.wheel_builder import build, should_build_for_wheel_command
@@ -120,6 +121,25 @@ def run(self, options: Values, args: List[str]) -> int:
 
         reqs = self.get_requirements(args, options, finder, session)
 
+        if "no-binary-enable-wheel-cache" in options.features_enabled:
+            # TODO: remove format_control from WheelCache when the deprecation cycle
+            # is over
+            wheel_cache = WheelCache(options.cache_dir)
+        else:
+            if options.format_control.no_binary:
+                deprecated(
+                    reason=(
+                        "--no-binary currently disables reading from "
+                        "the cache of locally built wheels. In the future "
+                        "--no-binary will not influence the wheel cache."
+                    ),
+                    replacement="to use the --no-cache-dir option",
+                    feature_flag="no-binary-enable-wheel-cache",
+                    issue=11453,
+                    gone_in=None,
+                )
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+
         preparer = self.make_requirement_preparer(
             temp_build_dir=directory,
             options=options,