Transition utils to use bzlmod to build

.bazelrc

@@ -0,0 +1,12 @@
+common --enable_bzlmod
+common --lockfile_mode=off
+
+# Add C++17 compiler flags.
+build --cxxopt=-std=c++17
+build --host_cxxopt=-std=c++17
+
+build --force_pic
+build --strip=never
+build --strict_system_includes
+build --fission=dbg
+build --features=per_object_debug_info

.bazelversion

@@ -0,0 +1 @@
+7.3.1

.gitignore

@@ -5,3 +5,9 @@ build_*
 # OS generated files
 .DS_Store
 *.swp
+
+# Bazel generated files
+bazel-bin/
+bazel-out/
+bazel-testlogs/
+bazel-*

BUILD.bazel

@@ -1,70 +1,99 @@
-load(
-    "@gz//bazel/skylark:build_defs.bzl",
-    "GZ_FEATURES",
-    "GZ_ROOT",
-    "GZ_VISIBILITY",
-    "gz_configure_header",
-    "gz_export_header",
-    "gz_include_header",
-)
+load("@buildifier_prebuilt//:rules.bzl", "buildifier", "buildifier_test")
+load("@rules_gazebo//gazebo:headers.bzl", "gz_configure_header", "gz_export_header")
 load("@rules_license//rules:license.bzl", "license")
 
 package(
-    default_applicable_licenses = [GZ_ROOT + "utils:license"],
-    default_visibility = GZ_VISIBILITY,
-    features = GZ_FEATURES,
+    default_applicable_licenses = [":license"],
+    default_visibility = ["__subpackages__"],
+    features = ["layering_check"],
 )
 
 license(
     name = "license",
     package_name = "gz-utils",
 )
 
-licenses(["notice"])
+exports_files([
+    "LICENSE",
+    "MODULE.bazel",
+])
 
-exports_files(["LICENSE"])
+gz_export_header(
+    name = "Export",
+    out = "include/gz/utils/Export.hh",
+    export_base = "GZ_UTILS",
+    lib_name = "gz-utils",
+)
 
 gz_configure_header(
-    name = "config",
+    name = "Config",
     src = "include/gz/utils/config.hh.in",
-    cmakelists = ["CMakeLists.txt"],
-    package = "utils",
+    package_xml = "package.xml",
 )
 
-gz_export_header(
-    name = "include/gz/utils/Export.hh",
-    export_base = "GZ_UTILS",
-    lib_name = "gz-utils",
-    visibility = ["//visibility:private"],
+cc_library(
+    name = "Environment",
+    srcs = ["src/Environment.cc"],
+    hdrs = ["include/gz/utils/Environment.hh"],
+    includes = ["include"],
+    deps = [
+        ":Config",
+        ":Export",
+    ],
 )
 
-public_headers_no_gen = glob([
-    "include/gz/utils/*.hh",
-    "include/gz/utils/detail/*.hh",
-    "include/gz/utils/detail/*.h",
-])
-
-gz_include_header(
-    name = "utilshh_genrule",
-    out = "include/gz/utils.hh",
-    hdrs = public_headers_no_gen + [
-        "include/gz/utils/Export.hh",
-        "include/gz/utils/config.hh",
+cc_library(
+    name = "ImplPtr",
+    hdrs = [
+        "include/gz/utils/ImplPtr.hh",
+        "include/gz/utils/detail/DefaultOps.hh",
+        "include/gz/utils/detail/ImplPtr.hh",
+    ],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":Export",
+        ":SuppressWarning",
     ],
 )
 
-public_headers = public_headers_no_gen + [
-    "include/gz/utils/config.hh",
-    "include/gz/utils/Export.hh",
-    "include/gz/utils.hh",
-]
+cc_library(
+    name = "NeverDestroyed",
+    hdrs = ["include/gz/utils/NeverDestroyed.hh"],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)
 
 cc_library(
-    name = "utils",
-    srcs = ["src/Environment.cc"],
-    hdrs = public_headers,
-    copts = ["-fexceptions"],
+    name = "SuppressWarning",
+    hdrs = [
+        "include/gz/utils/SuppressWarning.hh",
+        "include/gz/utils/detail/SuppressWarning.hh",
+    ],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "Subprocess",
+    hdrs = [
+        "include/gz/utils/Subprocess.hh",
+        "include/gz/utils/detail/subprocess.h",
+    ],
     includes = ["include"],
+    visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "gz-utils",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":Environment",
+        ":ImplPtr",
+        ":NeverDestroyed",
+        ":Subprocess",
+        ":SuppressWarning",
+    ],
 )
 
 # Tests
@@ -77,7 +106,7 @@ cc_library(
         "test/integration/implptr/implptr_test_classes.hh",
     ],
     includes = ["test/integration/implptr"],
-    deps = [":utils"],
+    deps = [":ImplPtr"],
 )
 
 cc_test(
@@ -86,48 +115,51 @@ cc_test(
     srcs = ["test/integration/implptr/ImplPtr_TEST.cc"],
     deps = [
         ":implptr_test_classes",
-        "@gtest",
-        "@gtest//:gtest_main",
+        "@googletest//:gtest_main",
     ],
 )
 
 cc_test(
     name = "Environment_TEST",
     srcs = ["src/Environment_TEST.cc"],
     deps = [
-        ":utils",
-        "@gtest",
-        "@gtest//:gtest_main",
+        ":Environment",
+        "@googletest//:gtest_main",
     ],
 )
 
-cc_test(
-    name = "NeverDestroyed_TEST",
-    srcs = ["src/NeverDestroyed_TEST.cc"],
-    copts = ["-fexceptions"],
+cc_binary(
+    name = "subprocess_main",
+    srcs = ["test/integration/subprocess/subprocess_main.cc"],
     deps = [
-        ":utils",
-        "@gtest",
-        "@gtest//:gtest_main",
+        ":Environment",
+        "//cli",
     ],
 )
 
-cc_binary(
-  name = "subprocess_main",
-  srcs = ["test/integration/subprocess/subprocess_main.cc"],
-  deps = [
-      GZ_ROOT + "utils/cli",
-  ]
-)
-
 cc_test(
     name = "subprocess_TEST",
     srcs = ["test/integration/subprocess_TEST.cc"],
+    local_defines = ['SUBPROCESS_EXECUTABLE_PATH=\\"subprocess_main\\"'],
     deps = [
-        ":utils",
+        ":gz-utils",
         ":subprocess_main",
-        "@gtest",
-        "@gtest//:gtest_main",
+        "@googletest//:gtest_main",
     ],
-  local_defines = ['SUBPROCESS_EXECUTABLE_PATH=\\"utils/subprocess_main\\"'],
+)
+
+buildifier(
+    name = "buildifier.fix",
+    exclude_patterns = ["./.git/*"],
+    lint_mode = "fix",
+    mode = "fix",
+)
+
+buildifier_test(
+    name = "buildifier.test",
+    exclude_patterns = ["./.git/*"],
+    lint_mode = "warn",
+    mode = "diff",
+    no_sandbox = True,
+    workspace = "//:MODULE.bazel",
 )

MODULE.bazel

@@ -0,0 +1,12 @@
+"gz-utils"
+
+module(
+    name = "gz-utils",
+    repo_name = "org_gazebosim_gz-utils",
+)
+
+bazel_dep(name = "buildifier_prebuilt", version = "7.3.1")
+bazel_dep(name = "googletest", version = "1.14.0")
+bazel_dep(name = "rules_gazebo", version = "0.0.2")
+bazel_dep(name = "rules_license", version = "1.0.0")
+bazel_dep(name = "spdlog", version = "1.14.1")

cli/BUILD.bazel

@@ -1,36 +1,47 @@
-load(
-    "@gz//bazel/skylark:build_defs.bzl",
-    "GZ_ROOT",
-    "GZ_VISIBILITY",
-)
 load("@rules_license//rules:license.bzl", "license")
 
 package(
-    default_applicable_licenses = [GZ_ROOT + "utils/cli:license"],
+    default_applicable_licenses = ["//:license"],
 )
 
 license(
     name = "license",
     package_name = "gz-utils-cli",
 )
 
-public_headers = [
-    "include/gz/utils/cli/GzFormatter.hpp",
-] + glob([
-    "include/external-cli/gz/utils/cli/*.hpp",
-])
+cc_library(
+    name = "cli11",
+    hdrs = glob([
+        "include/vendored-cli/gz/utils/cli/*.hpp",
+    ]),
+    includes = ["include/vendored-cli"],
+)
+
+cc_library(
+    name = "GzFormatter",
+    hdrs = [
+        "include/gz/utils/cli/GzFormatter.hpp",
+    ],
+    includes = ["include"],
+    deps = [
+        "//:Export",
+    ],
+)
 
 cc_library(
     name = "cli",
-    hdrs = public_headers,
-    copts = ["-fexceptions"],
-    includes = [
-        "include",
-        "include/external-cli",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":GzFormatter",
+        ":cli11",
     ],
-    visibility = GZ_VISIBILITY,
+)
+
+cc_test(
+    name = "cli_TEST",
+    srcs = ["src/cli_TEST.cc"],
     deps = [
-        GZ_ROOT + "utils:utils",
-        "@cli11"
+        ":cli",
+        "@googletest//:gtest_main",
     ],
 )

include/gz/utils/config.hh.in

@@ -21,15 +21,15 @@
 #define GZ_UTILS_CONFIG_HH_
 
 /* Version number */
-#define GZ_UTILS_MAJOR_VERSION ${PROJECT_VERSION_MAJOR}
-#define GZ_UTILS_MINOR_VERSION ${PROJECT_VERSION_MINOR}
-#define GZ_UTILS_PATCH_VERSION ${PROJECT_VERSION_PATCH}
+#define GZ_UTILS_MAJOR_VERSION @PROJECT_VERSION_MAJOR@
+#define GZ_UTILS_MINOR_VERSION @PROJECT_VERSION_MINOR@
+#define GZ_UTILS_PATCH_VERSION @PROJECT_VERSION_PATCH@
 
-#define GZ_UTILS_VERSION "${PROJECT_VERSION}"
-#define GZ_UTILS_VERSION_FULL "${PROJECT_VERSION_FULL}"
+#define GZ_UTILS_VERSION "@PROJECT_VERSION@"
+#define GZ_UTILS_VERSION_FULL "@PROJECT_VERSION_FULL@"
 
-#define GZ_UTILS_VERSION_NAMESPACE v${PROJECT_VERSION_MAJOR}
+#define GZ_UTILS_VERSION_NAMESPACE v@PROJECT_VERSION_MAJOR@
 
-#define GZ_UTILS_VERSION_HEADER "Gazebo Utils, version ${PROJECT_VERSION_FULL}\nCopyright (C) 2020 Open Source Robotics Foundation.\nReleased under the Apache 2.0 License.\n\n"
+#define GZ_UTILS_VERSION_HEADER "Gazebo Utils, version @PROJECT_VERSION_FULL@\nCopyright (C) 2020 Open Source Robotics Foundation.\nReleased under the Apache 2.0 License.\n\n"
 
 #endif