Upgrade to Bazel 8

.bazelrc

@@ -1,23 +1,51 @@
-build --define=scala_deps_direct=error
-build --define=scala_deps_used=error
+# Java options
+build --java_language_version="21"
+build --java_runtime_version="remotejdk_21"
+build --javacopt="-source 21 -target 21"
+build --tool_java_language_version="21"
+build --tool_java_runtime_version="remotejdk_21"
 
-build --experimental_strict_action_env
-test --experimental_strict_action_env
+# Other options
+build --experimental_use_hermetic_linux_sandbox
+build --experimental_worker_cancellation
+build --experimental_worker_multiplex_sandboxing
+build --experimental_worker_sandbox_hardening
+build --strategy=worker,sandboxed,local
+build --verbose_failures
+build --worker_max_instances=4
+build --worker_sandboxing
 
-build --strategy=ScalaCompile=worker
-build --strategy=ScalaCheckDeps=worker
-build --strategy=ScalaFmt=worker
-test --strategy=ScalaCompile=worker
-test --strategy=ScalaCheckDeps=worker
-test --strategy=ScalaFmt=worker
-
-build --python_path=/usr/bin/python3
-run --python_path=/usr/bin/python3
-test --python_path=/usr/bin/python3
+common --experimental_output_paths=strip
+common --modify_execution_info=CppArchive=+supports-path-mapping
+common --modify_execution_info=CppCompile=+supports-path-mapping
+common --modify_execution_info=CppModuleMap=+supports-path-mapping
 
+common --announce_rc
+common --color=yes
+common --disk_cache=.bazel_cache
 common --@rules_scala_annex//rules/scala:scala-toolchain=zinc
-common:v3.2 --config=noop
-common:v3.3 --config=noop
 
-# pick something trivial as a "noop"
-common:noop --logging=3
+# These are backwards incompatible options; we should check to see if their values have been flipped
+# when upgrading to new major Bazel version
+common --incompatible_auto_exec_groups
+common --incompatible_autoload_externally=sh_binary # sh_binary is used by rules_jvm_external
+common --incompatible_config_setting_private_default_visibility
+common --incompatible_disable_native_repo_rules
+common --incompatible_disable_starlark_host_transitions
+common --incompatible_disable_target_provider_fields
+common --incompatible_strict_action_env
+
+# Unfortunately, this can't be enabled just yet because with it enabled, we get the following error:
+# ERROR: Traceback (most recent call last):
+#     File "/home/jpeterson/.cache/bazel/*/external/rules_java+/java/common/rules/java_runtime.bzl", line 197, column 48, in <toplevel>
+#         "hermetic_static_libs": attr.label_list(
+# Error in label_list: Illegal argument: element in 'providers' is of unexpected type. Either all elements should be providers, or all elements should be lists of providers, but got an element of type com.google.devtools.build.lib.starlarkbuildapi.core.ContextAndFlagGuardedValue$1.
+#
+#common --incompatible_stop_exporting_language_modules
+
+# This is disabled because rules_python (and possibly other rulesets we depend on) rely on
+# deprecated `Label` APIs:
+# https://github.com/bazelbuild/rules_python/blob/main/python/private/pythons_hub.bzl#L82
+#common --noincompatible_enable_deprecated_label_apis
+
+test --test_output=all

.bazelversion

@@ -1 +1 @@
-7.4.1
+lucidsoftware/8.1.999

.gitignore

@@ -1,3 +1,4 @@
+/.bazel_cache/
 /bazel-*
 /external-tools/
 /temp

MODULE.bazel

@@ -6,11 +6,11 @@ bazel_dep(name = "rules_scala_annex")
 
 bazel_dep(name = "buildifier_prebuilt", version = "8.0.1", dev_dependency = True)
 
-rules_scala_annex_version = "lucid_2024-12-06"
+rules_scala_annex_version = "lucid_2025-02-27"
 
 archive_override(
     module_name = "rules_scala_annex",
-    integrity = "sha256-lSbyWlYtgP0ENngg4gKU1EBJ8d1sgMQKJlmOHwmCw3k=",
+    integrity = "sha256-V+btm8QF+VLhPzn906SskVY798DdzA9ofJcl2FCimOw=",
     strip_prefix = "rules_scala-{}".format(rules_scala_annex_version),
     urls = ["https://github.com/lucidsoftware/rules_scala/archive/refs/tags/{}.zip".format(rules_scala_annex_version)],
 )