WIP

pants-plugins/internal_plugins/releases/register.py

@@ -16,8 +16,8 @@
 from pants.engine.rules import Get, collect_rules, goal_rule, rule
 from pants.engine.target import Target
 from pants.engine.unions import UnionRule
-from pants.option.config import Config
 from pants.option.options_bootstrapper import OptionsBootstrapper
+from pants.util.frozendict import FrozenDict
 from pants.util.strutil import softwrap
 from pants.version import VERSION
 
@@ -131,10 +131,9 @@ async def check_default_tools(
                     SessionValues(
                         {
                             OptionsBootstrapper: OptionsBootstrapper(
-                                tuple(),
-                                ("./pants",),
-                                args,
-                                Config(tuple()),
+                                args=args,
+                                env=FrozenDict(),
+                                allow_pantsrc=False,
                             )
                         }
                     ),

src/python/pants/bin/local_pants_runner.py

@@ -116,7 +116,7 @@ def create(
 
         # Verify configs.
         if global_bootstrap_options.verify_config:
-            options.verify_configs(options_bootstrapper.config)
+            options.verify_configs()
 
         # If we're running with the daemon, we'll be handed a warmed Scheduler, which we use
         # to initialize a session here.

src/python/pants/bin/pants_runner.py

@@ -73,7 +73,7 @@ def run(self, start_time: float) -> ExitCode:
         self.scrub_pythonpath()
 
         options_bootstrapper = OptionsBootstrapper.create(
-            env=self.env, args=self.args, allow_pantsrc=True
+            args=self.args, env=self.env, allow_pantsrc=True
         )
         with warnings.catch_warnings(record=True):
             bootstrap_options = options_bootstrapper.bootstrap_options

src/python/pants/help/help_info_extracter_test.py

@@ -13,7 +13,6 @@
 from pants.engine.target import IntField, RegisteredTargetTypes, StringField, Target
 from pants.engine.unions import UnionMembership
 from pants.help.help_info_extracter import HelpInfoExtracter, pretty_print_type_hint, to_help_str
-from pants.option.config import Config
 from pants.option.global_options import GlobalOptions, LogLevelOption
 from pants.option.native_options import NativeOptionParser
 from pants.option.option_types import BoolOption, IntListOption, OptionInfo, StrListOption
@@ -260,12 +259,10 @@ class BazLibrary(Target):
     config_path = "pants.test.toml"
     config_source = SimpleNamespace(path=config_path, content=b"[GLOBAL]\nopt1 = '+[99]'")
     options = Options.create(
+        args=["./pants", "--backend-packages=['internal_plugins.releases']"],
         env={"PANTS_OPT1": "88"},
-        config=Config.load([config_source]),
-        native_options_config_discovery=False,
+        config_sources=[config_source],
         known_scope_infos=[Global.get_scope_info(), Foo.get_scope_info(), Bar.get_scope_info()],
-        args=["./pants", "--backend-packages=['internal_plugins.releases']"],
-        bootstrap_option_values=None,
         include_derivation=True,
     )
     Global.register_options_on_scope(options, UnionMembership({}))

src/python/pants/init/options_initializer.py

@@ -47,7 +47,7 @@ def _initialize_build_configuration(
       2. is expensive to call, because it might resolve plugins from the network
     """
 
-    bootstrap_options = options_bootstrapper.get_bootstrap_options().for_global_scope()
+    bootstrap_options = options_bootstrapper.bootstrap_options.for_global_scope()
 
     # Add any extra paths to python path (e.g., for loading extra source backends).
     for path in bootstrap_options.pythonpath:

src/python/pants/option/options.py

@@ -12,7 +12,7 @@
 from pants.base.build_environment import get_buildroot
 from pants.base.deprecated import warn_or_error
 from pants.option.arg_splitter import ArgSplitter
-from pants.option.config import Config
+from pants.option.config import ConfigSource
 from pants.option.errors import (
     ConfigValidationError,
     MutuallyExclusiveOptionError,
@@ -116,26 +116,26 @@ def complete_scopes(cls, scope_infos: Iterable[ScopeInfo]) -> FrozenOrderedSet[S
     @classmethod
     def create(
         cls,
-        env: Mapping[str, str],
-        config: Config,
-        known_scope_infos: Iterable[ScopeInfo],
+        *,
         args: Sequence[str],
-        bootstrap_option_values: OptionValueContainer | None = None,
+        env: Mapping[str, str],
+        config_sources: Sequence[ConfigSource] | None,
+        known_scope_infos: Sequence[ScopeInfo],
+        extra_specs: Sequence[str] = tuple(),
         allow_unknown_options: bool = False,
-        native_options_config_discovery: bool = True,
+        allow_pantsrc: bool = True,
         include_derivation: bool = False,
     ) -> Options:
         """Create an Options instance.
 
+        :param args: a list of cmd-line args; defaults to `sys.argv` if None is supplied.
         :param env: a dict of environment variables.
-        :param config: data from a config file.
+        :param config_sources: sources of config data.
         :param known_scope_infos: ScopeInfos for all scopes that may be encountered.
-        :param args: a list of cmd-line args; defaults to `sys.argv` if None is supplied.
-        :param bootstrap_option_values: An optional namespace containing the values of bootstrap
-               options. We can use these values when registering other options.
+        :param extra_specs: Extra specs to add to those specified in the args (e.g., from --spec-files).
         :param allow_unknown_options: Whether to ignore or error on unknown cmd-line flags.
-        :param native_options_config_discovery: Whether to discover config files in the native
-            parser or use the ones supplied.
+        :param allow_pantsrc: Whether to read config from local .rc files. Typically
+          disabled in tests, for hermeticity.
         :param include_derivation: Whether to gather option value derivation information.
         """
         # We need registrars for all the intermediate scopes, so inherited option values
@@ -150,19 +150,19 @@ def create(
             scope: registrar.known_scoped_args for scope, registrar in registrar_by_scope.items()
         }
 
-        config_to_pass = None if native_options_config_discovery else config.sources()
         native_parser = NativeOptionParser(
             args[1:],  # The native parser expects args without the sys.argv[0] binary name.
             env,
-            config_sources=config_to_pass,
-            allow_pantsrc=True,
+            config_sources=config_sources,
+            allow_pantsrc=allow_pantsrc,
             include_derivation=include_derivation,
             known_scopes_to_flags=known_scope_to_flags,
         )
 
         splitter = ArgSplitter(complete_known_scope_infos, get_buildroot())
         # We take the cli alias-expanded args[1:] from the native parser.
         split_args = splitter.split_args([args[0], *native_parser.get_args()])
+        split_args.specs.extend(extra_specs)
 
         if split_args.passthru and len(split_args.goals) > 1:
             raise cls.AmbiguousPassthroughError(
@@ -177,15 +177,6 @@ def create(
                 )
             )
 
-        if bootstrap_option_values:
-            spec_files = bootstrap_option_values.spec_files
-            if spec_files:
-                for spec_file in spec_files:
-                    with open(spec_file) as f:
-                        split_args.specs.extend(
-                            [line for line in [line.strip() for line in f] if line]
-                        )
-
         return cls(
             builtin_or_auxiliary_goal=split_args.builtin_or_auxiliary_goal,
             goals=split_args.goals,
@@ -278,7 +269,7 @@ def known_scope_to_scoped_args(self) -> dict[str, frozenset[str]]:
     def scope_to_flags(self) -> dict[str, list[str]]:
         return self._scope_to_flags
 
-    def verify_configs(self, global_config: Config) -> None:
+    def verify_configs(self) -> None:
         """Verify all loaded configs have correct scopes and options."""
 
         section_to_valid_options = {}
@@ -300,7 +291,6 @@ def verify_configs(self, global_config: Config) -> None:
                     """
                 )
             )
-        global_config.verify(section_to_valid_options)
 
     def get_args(self) -> tuple[str, ...]:
         return self._native_parser.get_args()
@@ -459,14 +449,11 @@ def for_scope(
                         )
                     )
             setattr(builder, dest, RankedValue(rank, val))
-        native_values = builder.build()
 
         # Check for any deprecation conditions, which are evaluated using `self._flag_matchers`.
         if check_deprecations:
-            native_values_builder = native_values.to_builder()
-            self._check_and_apply_deprecations(scope, native_values_builder)
-            native_values = native_values_builder.build()
-        return native_values
+            self._check_and_apply_deprecations(scope, builder)
+        return builder.build()
 
     def get_fingerprintable_for_scope(
         self,