Move generate-lockfiles goal to core/goals

# Rust tests and lints will be skipped. Delete if not intended.
[ci skip-rust]

# Building wheels and fs_util will be skipped. Delete if not intended.
[ci skip-build-wheels]

src/python/pants/backend/python/goals/lockfile.py

@@ -7,7 +7,7 @@
 from collections import defaultdict
 from dataclasses import dataclass
 from pathlib import PurePath
-from typing import Iterable, cast
+from typing import Iterable
 
 from pants.backend.python.pip_requirement import PipRequirement
 from pants.backend.python.subsystems.poetry import (
@@ -30,84 +30,26 @@
 )
 from pants.backend.python.util_rules.pex import PexRequest, PexRequirements, VenvPex, VenvPexProcess
 from pants.core.goals.generate_lockfiles import (
+    GenerateLockfilesSubsystem,
     KnownUserResolveNames,
     KnownUserResolveNamesRequest,
     Lockfile,
     LockfileRequest,
     RequestedUserResolveNames,
-    ToolLockfileSentinel,
     UserLockfileRequests,
     WrappedLockfileRequest,
-    determine_resolves_to_generate,
-    filter_tool_lockfile_requests,
 )
-from pants.engine.fs import (
-    CreateDigest,
-    Digest,
-    DigestContents,
-    FileContent,
-    MergeDigests,
-    Workspace,
-)
-from pants.engine.goal import Goal, GoalSubsystem
+from pants.engine.fs import CreateDigest, Digest, DigestContents, FileContent
 from pants.engine.process import ProcessCacheScope, ProcessResult
-from pants.engine.rules import Get, MultiGet, collect_rules, goal_rule, rule
+from pants.engine.rules import Get, MultiGet, collect_rules, rule
 from pants.engine.target import AllTargets
-from pants.engine.unions import UnionMembership, UnionRule
+from pants.engine.unions import UnionRule
 from pants.util.logging import LogLevel
 from pants.util.ordered_set import FrozenOrderedSet
 
 logger = logging.getLogger(__name__)
 
 
-class GenerateLockfilesSubsystem(GoalSubsystem):
-    name = "generate-lockfiles"
-    help = "Generate lockfiles for Python third-party dependencies."
-    required_union_implementations = (ToolLockfileSentinel, KnownUserResolveNames)
-
-    @classmethod
-    def register_options(cls, register) -> None:
-        super().register_options(register)
-        register(
-            "--resolve",
-            type=list,
-            member_type=str,
-            advanced=False,
-            help=(
-                "Only generate lockfiles for the specified resolve(s).\n\n"
-                "Resolves are the logical names for the different lockfiles used in your project. "
-                "For your own code's dependencies, these come from the option "
-                "`[python].experimental_resolves`. For tool lockfiles, resolve "
-                "names are the options scope for that tool such as `black`, `pytest`, and "
-                "`mypy-protobuf`.\n\n"
-                "For example, you can run `./pants generate-lockfiles --resolve=black "
-                "--resolve=pytest --resolve=data-science` to only generate lockfiles for those "
-                "two tools and your resolve named `data-science`.\n\n"
-                "If you specify an invalid resolve name, like 'fake', Pants will output all "
-                "possible values.\n\n"
-                "If not specified, Pants will generate lockfiles for all resolves."
-            ),
-        )
-        register(
-            "--custom-command",
-            advanced=True,
-            type=str,
-            default=None,
-            help=(
-                "If set, lockfile headers will say to run this command to regenerate the lockfile, "
-                "rather than running `./pants generate-lockfiles --resolve=<name>` like normal."
-            ),
-        )
-
-    @property
-    def resolve_names(self) -> tuple[str, ...]:
-        return tuple(self.options.resolve)
-
-    @property
-    def custom_command(self) -> str | None:
-        return cast("str | None", self.options.custom_command)
-
-
 @dataclass(frozen=True)
 class PythonLockfileRequest(LockfileRequest):
     requirements: FrozenOrderedSet[str]
@@ -322,55 +264,6 @@ async def setup_user_lockfile_requests(
     )
 
 
-class GenerateLockfilesGoal(Goal):
-    subsystem_cls = GenerateLockfilesSubsystem
-
-
-@goal_rule
-async def generate_lockfiles_goal(
-    workspace: Workspace,
-    union_membership: UnionMembership,
-    generate_lockfiles_subsystem: GenerateLockfilesSubsystem,
-) -> GenerateLockfilesGoal:
-    known_user_resolve_names = await MultiGet(
-        Get(KnownUserResolveNames, KnownUserResolveNamesRequest, request())
-        for request in union_membership.get(KnownUserResolveNamesRequest)
-    )
-    requested_user_resolve_names, requested_tool_sentinels = determine_resolves_to_generate(
-        known_user_resolve_names,
-        union_membership.get(ToolLockfileSentinel),
-        set(generate_lockfiles_subsystem.resolve_names),
-    )
-
-    all_specified_user_requests = await MultiGet(
-        Get(UserLockfileRequests, RequestedUserResolveNames, resolve_names)
-        for resolve_names in requested_user_resolve_names
-    )
-    specified_tool_requests = await MultiGet(
-        Get(WrappedLockfileRequest, ToolLockfileSentinel, sentinel())
-        for sentinel in requested_tool_sentinels
-    )
-    applicable_tool_requests = filter_tool_lockfile_requests(
-        specified_tool_requests,
-        resolve_specified=bool(generate_lockfiles_subsystem.resolve_names),
-    )
-
-    results = await MultiGet(
-        Get(Lockfile, LockfileRequest, req)
-        for req in (
-            *(req for reqs in all_specified_user_requests for req in reqs),
-            *applicable_tool_requests,
-        )
-    )
-
-    merged_digest = await Get(Digest, MergeDigests(res.digest for res in results))
-    workspace.write_digest(merged_digest)
-    for result in results:
-        logger.info(f"Wrote lockfile for the resolve `{result.resolve_name}` to {result.path}")
-
-    return GenerateLockfilesGoal(exit_code=0)
-
-
 def rules():
     return (
         *collect_rules(),

src/python/pants/core/goals/generate_lockfiles.py

@@ -4,12 +4,18 @@
 from __future__ import annotations
 
 import itertools
+import logging
 from dataclasses import dataclass
-from typing import ClassVar, Iterable, Sequence
+from typing import ClassVar, Iterable, Sequence, cast
 
 from pants.engine.collection import Collection
-from pants.engine.fs import Digest
-from pants.engine.unions import union
+from pants.engine.fs import Digest, MergeDigests, Workspace
+from pants.engine.goal import Goal, GoalSubsystem
+from pants.engine.internals.selectors import Get, MultiGet
+from pants.engine.rules import collect_rules, goal_rule
+from pants.engine.unions import UnionMembership, union
+
+logger = logging.getLogger(__name__)
 
 
 @dataclass(frozen=True)
@@ -219,3 +225,104 @@ def filter_tool_lockfile_requests(
             )
 
     return result
+
+
+class GenerateLockfilesSubsystem(GoalSubsystem):
+    name = "generate-lockfiles"
+    help = "Generate lockfiles for Python third-party dependencies."
+    required_union_implementations = (ToolLockfileSentinel, KnownUserResolveNames)
+
+    @classmethod
+    def register_options(cls, register) -> None:
+        super().register_options(register)
+        register(
+            "--resolve",
+            type=list,
+            member_type=str,
+            advanced=False,
+            help=(
+                "Only generate lockfiles for the specified resolve(s).\n\n"
+                "Resolves are the logical names for the different lockfiles used in your project. "
+                "For your own code's dependencies, these come from the option "
+                "`[python].experimental_resolves`. For tool lockfiles, resolve "
+                "names are the options scope for that tool such as `black`, `pytest`, and "
+                "`mypy-protobuf`.\n\n"
+                "For example, you can run `./pants generate-lockfiles --resolve=black "
+                "--resolve=pytest --resolve=data-science` to only generate lockfiles for those "
+                "two tools and your resolve named `data-science`.\n\n"
+                "If you specify an invalid resolve name, like 'fake', Pants will output all "
+                "possible values.\n\n"
+                "If not specified, Pants will generate lockfiles for all resolves."
+            ),
+        )
+        register(
+            "--custom-command",
+            advanced=True,
+            type=str,
+            default=None,
+            help=(
+                "If set, lockfile headers will say to run this command to regenerate the lockfile, "
+                "rather than running `./pants generate-lockfiles --resolve=<name>` like normal."
+            ),
+        )
+
+    @property
+    def resolve_names(self) -> tuple[str, ...]:
+        return tuple(self.options.resolve)
+
+    @property
+    def custom_command(self) -> str | None:
+        return cast("str | None", self.options.custom_command)
+
+
+class GenerateLockfilesGoal(Goal):
+    subsystem_cls = GenerateLockfilesSubsystem
+
+
+@goal_rule
+async def generate_lockfiles_goal(
+    workspace: Workspace,
+    union_membership: UnionMembership,
+    generate_lockfiles_subsystem: GenerateLockfilesSubsystem,
+) -> GenerateLockfilesGoal:
+    known_user_resolve_names = await MultiGet(
+        Get(KnownUserResolveNames, KnownUserResolveNamesRequest, request())
+        for request in union_membership.get(KnownUserResolveNamesRequest)
+    )
+    requested_user_resolve_names, requested_tool_sentinels = determine_resolves_to_generate(
+        known_user_resolve_names,
+        union_membership.get(ToolLockfileSentinel),
+        set(generate_lockfiles_subsystem.resolve_names),
+    )
+
+    all_specified_user_requests = await MultiGet(
+        Get(UserLockfileRequests, RequestedUserResolveNames, resolve_names)
+        for resolve_names in requested_user_resolve_names
+    )
+    specified_tool_requests = await MultiGet(
+        Get(WrappedLockfileRequest, ToolLockfileSentinel, sentinel())
+        for sentinel in requested_tool_sentinels
+    )
+    applicable_tool_requests = filter_tool_lockfile_requests(
+        specified_tool_requests,
+        resolve_specified=bool(generate_lockfiles_subsystem.resolve_names),
+    )
+
+    results = await MultiGet(
+        Get(Lockfile, LockfileRequest, req)
+        for req in (
+            *(req for reqs in all_specified_user_requests for req in reqs),
+            *applicable_tool_requests,
+        )
+    )
+
+    merged_digest = await Get(Digest, MergeDigests(res.digest for res in results))
+    workspace.write_digest(merged_digest)
+    for result in results:
+        logger.info(f"Wrote lockfile for the resolve `{result.resolve_name}` to {result.path}")
+
+    return GenerateLockfilesGoal(exit_code=0)
+
+
+def rules():
+    return collect_rules()

src/python/pants/core/register.py

@@ -10,6 +10,7 @@
     check,
     export,
     fmt,
+    generate_lockfiles,
     lint,
     package,
     publish,
@@ -50,6 +51,7 @@ def rules():
         *check.rules(),
         *export.rules(),
         *fmt.rules(),
+        *generate_lockfiles.rules(),
         *lint.rules(),
         *update_build_files.rules(),
         *package.rules(),