Update Bazel to 9.0.0-pre.20251025.1

.bazelrc

@@ -38,7 +38,6 @@ common --java_runtime_version=graalvm_25
 common --java_language_version=25
 
 ## Rust
-startup --windows_enable_symlinks
 build --enable_runfiles
 build --compilation_mode=opt
 

.bazelversion

@@ -1 +1 @@
-8.2.1
+9.0.0-pre.20251025.1

MODULE.bazel

@@ -16,9 +16,10 @@ bazel_dep(
 
 bazel_dep(name = "aspect_rules_js", version = "2.5.0")
 bazel_dep(name = "aspect_rules_ts", version = "3.7.0")
-bazel_dep(name = "rules_nodejs", version = "6.3.2")
-bazel_dep(name = "aspect_bazel_lib", version = "2.14.0")
+bazel_dep(name = "rules_nodejs", version = "6.6.0")
+bazel_dep(name = "aspect_bazel_lib", version = "2.21.2")
 bazel_dep(name = "bazel_skylib", version = "1.8.1")
+bazel_dep(name = "platforms", version = "1.0.0")
 
 ## Node.js
 node = use_extension("@rules_nodejs//nodejs:extensions.bzl", "node")
@@ -136,7 +137,7 @@ register_toolchains(
 ### JVM ###
 ###########
 
-bazel_dep(name = "rules_java", version = "8.11.0")
+bazel_dep(name = "rules_java", version = "8.16.1")
 bazel_dep(name = "rules_graalvm", version = "0.11.2")
 
 # The latest version of rules_graalvm does not support Java 24.
@@ -170,7 +171,7 @@ register_toolchains(
     "@graalvm//:bootstrap_runtime_toolchain",
 )
 
-bazel_dep(name = "rules_jvm_external", version = "6.3")
+bazel_dep(name = "rules_jvm_external", version = "6.7")
 
 sbt_ext = use_extension("//toolchains/sbt:extensions.bzl", "sbt_ext")
 use_repo(sbt_ext, "sbt_repo")
@@ -255,27 +256,6 @@ use_repo(
     "unpinned_maven",
 )
 
-#############
-### Scala ###
-#############
-
-### TODO: This setup is untested and probably does not work.
-
-bazel_dep(name = "platforms", version = "1.0.0")
-bazel_dep(name = "rules_scala", version = "7.0.0", repo_name = "io_bazel_rules_scala")
-
-scala_config = use_extension(
-    "@io_bazel_rules_scala//scala/extensions:config.bzl",
-    "scala_config",
-)
-scala_config.settings(scala_version = "2.13.16")
-
-scala_deps = use_extension(
-    "@io_bazel_rules_scala//scala/extensions:deps.bzl",
-    "scala_deps",
-)
-scala_deps.scala()
-
 ###################
 ### ENVIRONMENT ###
 ###################

toolchains/BUILD.bazel

@@ -1,27 +1,3 @@
-## Discover dependencies via
-## > bazel build <target> --extra_toolchains=//:plus_one_strict_deps_filter
-load("@io_bazel_rules_scala//scala:scala_toolchain.bzl", "scala_toolchain")
-
-scala_toolchain(
-    name = "enso_toolchain_impl",
-    scalac_jvm_flags = [
-        "-Djava.security.manager=allow",
-    ],
-    scalacopts = ["-Ywarn-unused"],
-    ## Allows for easier discovery of missing dependencies
-    ## dependency_mode = "plus-one",
-    ## dependency_tracking_method = "ast",
-    ## strict_deps_mode = "error",
-    visibility = ["//visibility:public"],
-)
-
-toolchain(
-    name = "enso_toolchain",
-    toolchain = "enso_toolchain_impl",
-    toolchain_type = "@io_bazel_rules_scala//scala:toolchain_type",
-    visibility = ["//visibility:public"],
-)
-
 toolchain(
     name = "windows_builtin_tar_toolchain",
     exec_compatible_with = [

toolchains/flatc/BUILD.bazel.tpl

@@ -1,4 +1,5 @@
 load("@//toolchains/flatc:toolchain.bzl", "flatc_toolchain")
+load("@platforms//host:constraints.bzl", "HOST_CONSTRAINTS")
 
 flatc_toolchain(
     name = "toolchain_impl",
@@ -11,10 +12,6 @@ toolchain(
     toolchain_type = "@//toolchains/flatc:toolchain_type",
     toolchain = ":toolchain_impl",
     visibility = ["//visibility:public"],
-    exec_compatible_with = [
-        {exec_constraints},
-    ],
-    target_compatible_with = [
-        {target_constraints},
-    ],
+    exec_compatible_with = HOST_CONSTRAINTS,
+    target_compatible_with = HOST_CONSTRAINTS,
 )

toolchains/flatc/extensions.bzl

@@ -8,30 +8,12 @@ def _flatc_toolchain_repo_impl(rctx):
         sha256 = rctx.attr.sha256,
     )
     flatc_binary = "flatc"
-    os_constraint = None
-    arch_constraint = None
     if rctx.attr.os == "windows":
         flatc_binary = "flatc.exe"
 
-    if rctx.attr.os == "macos":
-        os_constraint = '"@platforms//os:macos"'
-    elif rctx.attr.os == "linux":
-        os_constraint = '"@platforms//os:linux"'
-    elif rctx.attr.os == "windows":
-        os_constraint = '"@platforms//os:windows"'
-
-    if rctx.attr.arch == "aarch64":
-        arch_constraint = '"@platforms//cpu:aarch64"'
-    elif rctx.attr.arch == "x86_64":
-        arch_constraint = '"@platforms//cpu:x86_64"'
-
-    constraints = [os_constraint, arch_constraint]
-    constraints_str = ", ".join(constraints)
     substitutions = {
         "{flatc_binary}": str(rctx.path(flatc_binary)),
         "{flatc_path}": str(rctx.path(flatc_binary).dirname),
-        "{exec_constraints}": constraints_str,
-        "{target_constraints}": constraints_str,
     }
     rctx.template(
         "BUILD.bazel",