[bazel_migration] Migrate ffx/lib/port_picker Migrate the Rust library `port_picker` from GN to Bazel. - Limit the `visibility` of migrated library to `//src/developer/ffx:__subpackages__`. - Include the library test to `//src/developer/ffx:tests` Bazel `test_suite()` target and exclude the library test from `//src/developer/ffx/lib:tests` GN `group` target. Test: fx build --host @//src/developer/ffx/lib/port_picker:lib Test: fx build --host //src/developer/ffx/lib/port_picker:lib Test: fx bazel test --config=host //src/developer/ffx:tests Test: fx build //src/developer/ffx:tests Test: fx build --host //build:bazel2gn_verifications Bug: 559509349 TAG: agy CONV: a9c0213e-c2d5-41dc-b7e2-07a23864fdcf Change-Id: I424948b731dd0d5d667834ca5601e1034d652012 Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1814011 Fuchsia-Auto-Submit: David Turner <digit@google.com> Commit-Queue: David Turner <digit@google.com> Reviewed-by: David Turner <digit@google.com>

diff --git a/build/bazel2gn_verification_targets.gni b/build/bazel2gn_verification_targets.gni
index d726813..c20ed2e 100644
--- a/build/bazel2gn_verification_targets.gni
+++ b/build/bazel2gn_verification_targets.gni

@@ -67,6 +67,7 @@
   "//src/developer/ffx/lib/logging:verify_bazel2gn",
   "//src/developer/ffx/lib/metrics:verify_bazel2gn",
   "//src/developer/ffx/lib/netext:verify_bazel2gn",
+  "//src/developer/ffx/lib/port_picker:verify_bazel2gn",
   "//src/developer/ffx/lib/sdk:verify_bazel2gn",
   "//src/developer/ffx/lib/timeout:verify_bazel2gn",
   "//src/developer/ffx/lib/version:verify_bazel2gn",

diff --git a/src/developer/ffx/BUILD.bazel b/src/developer/ffx/BUILD.bazel
index dc28932..5427d0c 100644
--- a/src/developer/ffx/BUILD.bazel
+++ b/src/developer/ffx/BUILD.bazel

@@ -34,6 +34,7 @@
         "//src/developer/ffx/lib/logging:lib_test",
         "//src/developer/ffx/lib/metrics:lib_test",
         "//src/developer/ffx/lib/netext:lib_test",
+        "//src/developer/ffx/lib/port_picker:lib_test",
         "//src/developer/ffx/lib/traceable_error:lib_test",
         "//src/developer/ffx/lib/version:lib_test",
     ],

diff --git a/src/developer/ffx/lib/ffx_libraries_list.gni b/src/developer/ffx/lib/ffx_libraries_list.gni
index 1de85e2..478304e4 100644
--- a/src/developer/ffx/lib/ffx_libraries_list.gni
+++ b/src/developer/ffx/lib/ffx_libraries_list.gni

@@ -71,6 +71,7 @@
   "logging",
   "metrics",
   "netext",
+  "port_picker",
   "traceable_error",
   "version",
 

diff --git a/src/developer/ffx/lib/port_picker/BUILD.bazel b/src/developer/ffx/lib/port_picker/BUILD.bazel
new file mode 100644
index 0000000..4fe05ed
--- /dev/null
+++ b/src/developer/ffx/lib/port_picker/BUILD.bazel

@@ -0,0 +1,18 @@
+# Copyright 2026 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+load("@platforms//host:constraints.bzl", "HOST_CONSTRAINTS")
+load("//build/bazel/rules/rust:defs.bzl", "rustc_library")
+
+package(default_applicable_licenses = ["//:license"])
+
+rustc_library(
+    name = "lib",
+    srcs = ["src/lib.rs"],
+    crate_name = "port_picker",
+    edition = "2024",
+    target_compatible_with = HOST_CONSTRAINTS,
+    visibility = ["//src/developer/ffx:__subpackages__"],
+    with_host_unit_tests = True,
+)

diff --git a/src/developer/ffx/lib/port_picker/BUILD.gn b/src/developer/ffx/lib/port_picker/BUILD.gn
index 0a2064d..5c57a0f 100644
--- a/src/developer/ffx/lib/port_picker/BUILD.gn
+++ b/src/developer/ffx/lib/port_picker/BUILD.gn

@@ -2,26 +2,49 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/rust/rustc_library.gni")
-
 assert(is_host, "port_picker is for use with the host toolchain only")
 
-rustc_library("lib") {
-  name = "port_picker"
-  with_unit_tests = true
-  edition = "2024"
-  sources = [ "src/lib.rs" ]
-}
-
-group("tests") {
-  testonly = true
-  deps = [ ":lib_test" ]
-}
-
 group("port_picker") {
-  testonly = true
-  deps = [
-    ":lib",
-    ":tests",
-  ]
+  deps = [ ":lib" ]
+}
+
+## BAZEL2GN SENTINEL - DO NOT EDIT BELOW THIS LINE ##
+#
+#  ________  _________  ________  ________
+# |\   ____\|\___   ___\\   __  \|\   __  \
+# \ \  \___|\|___ \  \_\ \  \|\  \ \  \|\  \
+#  \ \_____  \   \ \  \ \ \  \\\  \ \   ____\
+#   \|____|\  \   \ \  \ \ \  \\\  \ \  \___|
+#     ____\_\  \   \ \__\ \ \_______\ \__\
+#    |\_________\   \|__|  \|_______|\|__|
+#    \|_________|
+#
+#
+# AUTO-GENERATED - DO NOT EDIT
+#
+# The targets below are auto-generated based on the targets defined in the
+# BUILD.bazel file from the same directory. If you made changes to targets in
+# Bazel, instead of editing this file manually, run:
+#
+#   > fx bazel2gn
+#
+# Please do NOT edit this file directly. Instead, edit the BUILD.bazel file and
+# rerun bazel2gn.
+
+import("//build/tools/bazel2gn/bazel_migration.gni")
+
+# A self-verification target for generated content in this file.
+if (is_host) {
+  verify_bazel2gn("verify_bazel2gn") {
+  }
+}
+
+if (is_host) {
+  rustc_library("lib") {
+    sources = [ "src/lib.rs" ]
+    crate_name = "port_picker"
+    edition = "2024"
+    visibility = [ "//src/developer/ffx/*" ]
+    with_unit_tests = true
+  }
 }