Add support for Bzlmod

.gitignore

@@ -108,3 +108,6 @@ CMakeFiles
 DartConfiguration.tcl
 *build*/*
 build/
+
+# Ignore Bzlmod lock file until it is more stable
+MODULE.bazel.lock

MODULE.bazel

@@ -0,0 +1,120 @@
+module(
+    name = "com_google_ortools",
+)
+
+bazel_dep(name = "abseil-cpp", version = "20240722.0", repo_name = "com_google_absl")
+bazel_dep(name = "bazel_skylib", version = "1.7.1")
+bazel_dep(name = "contrib_rules_jvm", version = "0.27.0")
+bazel_dep(name = "eigen", version = "3.4.0.bcr.1")
+bazel_dep(name = "gazelle", version = "0.39.1", repo_name = "bazel_gazelle")
+bazel_dep(name = "glpk", version = "5.0.bcr.1")
+bazel_dep(name = "google_benchmark", version = "1.8.5", repo_name = "com_google_benchmark")
+bazel_dep(name = "googletest", version = "1.15.2", repo_name = "com_google_googletest")
+bazel_dep(name = "highs", version = "1.8.0")
+bazel_dep(name = "platforms", version = "0.0.10")
+bazel_dep(name = "protobuf", version = "27.1.bcr.1", repo_name = "com_google_protobuf")
+bazel_dep(name = "pybind11_abseil", version = "202402.0", repo_name = "org_pybind11_abseil")
+bazel_dep(name = "pybind11_bazel", version = "2.13.6")
+bazel_dep(name = "pybind11_protobuf", version = "0.0.0-20240524-1d7a729")
+bazel_dep(name = "re2", version = "2024-07-02", repo_name = "com_google_re2")
+bazel_dep(name = "rules_cc", version = "0.0.10")
+bazel_dep(name = "rules_go", version = "0.50.1", repo_name = "io_bazel_rules_go")
+bazel_dep(name = "rules_java", version = "7.12.2")
+bazel_dep(name = "rules_jvm_external", version = "6.4")
+bazel_dep(name = "rules_license", version = "1.0.0")
+bazel_dep(name = "rules_proto", version = "6.0.2")
+bazel_dep(name = "rules_python", version = "0.37.2")
+bazel_dep(name = "scip", version = "8.1.0")
+bazel_dep(name = "swig", version = "4.2.0")
+bazel_dep(name = "zlib", version = "1.3.1.bcr.3")
+
+PYTHON_VERSIONS = [
+    "3.8",
+    "3.9",
+    "3.10",
+    "3.11",
+    "3.12",
+]
+python = use_extension("@rules_python//python/extensions:python.bzl", "python")
+[
+    python.toolchain(
+        is_default = python_version == PYTHON_VERSIONS[-1],
+        python_version = python_version,
+    )
+    for python_version in PYTHON_VERSIONS
+]
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+[
+    pip.parse(
+        hub_name = "ortools_pip_deps",
+        python_version = python_version,
+        requirements_lock = "//bazel:ortools_requirements.txt",
+    )
+    for python_version in PYTHON_VERSIONS
+]
+[
+    pip.parse(
+        hub_name = "ortools_notebook_deps",
+        python_version = python_version,
+        requirements_lock = "//bazel:notebook_requirements.txt",
+    )
+    for python_version in PYTHON_VERSIONS
+]
+use_repo(pip, pip_deps = "ortools_pip_deps")
+use_repo(pip, "ortools_notebook_deps")
+
+JUNIT_PLATFORM_VERSION = "1.9.2"
+JUNIT_JUPITER_VERSION = "5.9.2"
+maven = use_extension("@rules_jvm_external//:extensions.bzl", "maven")
+maven.install(
+    artifacts = [
+        "net.java.dev.jna:jna:5.14.0",
+        "com.google.truth:truth:0.32",
+        "org.junit.platform:junit-platform-launcher:%s" % JUNIT_PLATFORM_VERSION,
+        "org.junit.platform:junit-platform-reporting:%s" % JUNIT_PLATFORM_VERSION,
+        "org.junit.jupiter:junit-jupiter-api:%s" % JUNIT_JUPITER_VERSION,
+        "org.junit.jupiter:junit-jupiter-params:%s" % JUNIT_JUPITER_VERSION,
+        "org.junit.jupiter:junit-jupiter-engine:%s" % JUNIT_JUPITER_VERSION,
+    ],
+    repositories = [
+        "https://repo1.maven.org/maven2",
+    ],
+)
+use_repo(maven, "maven")
+
+go_sdk = use_extension("@io_bazel_rules_go//go:extensions.bzl", "go_sdk")
+go_sdk.download(version = "1.22.4")
+go_deps = use_extension("@bazel_gazelle//:extensions.bzl", "go_deps")
+go_deps.module(
+    path = "github.com/golang/glog",
+    sum = "h1:1+mZ9upx1Dh6FmUTFR1naJ77miKiXgALjWOZ3NVFPmY=",
+    version = "v1.2.2",
+)
+go_deps.module(
+    path = "github.com/golang/protobuf",
+    sum = "h1:LUVKkCeviFUMKqHa4tXIIij/lbhnMbP7Fn5wKdKkRh4=",
+    version = "v1.5.0",
+)
+go_deps.module(
+    path = "github.com/google/go-cmp",
+    sum = "h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=",
+    version = "v0.6.0",
+)
+go_deps.module(
+    path = "google.golang.org/protobuf",
+    sum = "h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=",
+    version = "v1.34.2",
+)
+go_deps.module(
+    path = "golang.org/x/xerrors",
+    sum = "h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=",
+    version = "v0.0.0-20191204190536-9bdfabe68543",
+)
+use_repo(
+    go_deps,
+    "com_github_golang_glog",
+    "com_github_golang_protobuf",
+    "com_github_google_go_cmp",
+    "org_golang_google_protobuf",
+    "org_golang_x_xerrors",
+)

WORKSPACE

@@ -169,6 +169,7 @@ http_archive(
     build_file = "//bazel:glpk.BUILD.bazel",
     sha256 = "4a1013eebb50f728fc601bdd833b0b2870333c3b3e5a816eeba921d95bec6f15",
     url = "http://ftp.gnu.org/gnu/glpk/glpk-5.0.tar.gz",
+    strip_prefix = "glpk-5.0",
 )
 
 http_archive(
@@ -197,7 +198,7 @@ new_git_repository(
     build_file_content =
 """
 cc_library(
-    name = 'eigen3',
+    name = 'eigen',
     srcs = [],
     includes = ['.'],
     hdrs = glob(['Eigen/**', 'unsupported/**']),

bazel/glpk.BUILD.bazel

@@ -15,37 +15,37 @@ cc_library(
     name = "glpk",
     srcs = glob(
         [
-            "glpk-5.0/src/*.c",
-            "glpk-5.0/src/*/*.c",
-            "glpk-5.0/src/*.h",
-            "glpk-5.0/src/*/*.h",
+            "src/*.c",
+            "src/*/*.c",
+            "src/*.h",
+            "src/*/*.h",
         ],
         exclude = [
-            "glpk-5.0/src/proxy/main.c",
-            "glpk-5.0/src/zlib/*",
+            "src/proxy/main.c",
+            "src/zlib/*",
         ],
     ),
     hdrs = [
-        "glpk-5.0/src/glpk.h",
+        "src/glpk.h",
     ],
     copts = [
         "-w",
-        "-Iexternal/glpk/glpk-5.0/src",
-        "-Iexternal/glpk/glpk-5.0/src/amd",
-        "-Iexternal/glpk/glpk-5.0/src/api",
-        "-Iexternal/glpk/glpk-5.0/src/bflib",
-        "-Iexternal/glpk/glpk-5.0/src/colamd",
-        "-Iexternal/glpk/glpk-5.0/src/draft",
-        "-Iexternal/glpk/glpk-5.0/src/env",
-        "-Iexternal/glpk/glpk-5.0/src/intopt",
-        "-Iexternal/glpk/glpk-5.0/src/minisat",
-        "-Iexternal/glpk/glpk-5.0/src/misc",
-        "-Iexternal/glpk/glpk-5.0/src/mpl",
-        "-Iexternal/glpk/glpk-5.0/src/npp",
-        "-Iexternal/glpk/glpk-5.0/src/proxy",
-        "-Iexternal/glpk/glpk-5.0/src/simplex",
+        "-Iexternal/glpk/src",
+        "-Iexternal/glpk/src/amd",
+        "-Iexternal/glpk/src/api",
+        "-Iexternal/glpk/src/bflib",
+        "-Iexternal/glpk/src/colamd",
+        "-Iexternal/glpk/src/draft",
+        "-Iexternal/glpk/src/env",
+        "-Iexternal/glpk/src/intopt",
+        "-Iexternal/glpk/src/minisat",
+        "-Iexternal/glpk/src/misc",
+        "-Iexternal/glpk/src/mpl",
+        "-Iexternal/glpk/src/npp",
+        "-Iexternal/glpk/src/proxy",
+        "-Iexternal/glpk/src/simplex",
     ],
     deps = ["@zlib"],
-    includes = ["glpk-5.0/src"],
+    includes = ["src"],
     visibility = ["//visibility:public"],
 )

bazel/scip.BUILD.bazel

@@ -68,7 +68,7 @@ BLISS_FILE = select({
 })
 
 cc_library(
-    name = "libscip",
+    name = "scip",
     srcs = glob(
         [
             "src/*/*.c",

bazel/swig_java.bzl

@@ -13,6 +13,7 @@
 
 """Build definitions for SWIG Java."""
 
+load("@bazel_skylib//lib:paths.bzl", "paths")
 load("@rules_java//java:java_library.bzl", "java_library")
 load("@rules_java//java/common:java_common.bzl", "java_common")
 
@@ -69,10 +70,10 @@ def _java_wrap_cc_impl(ctx):
         generated_c_files.append(outhdr)
 
     # Add swig LIB files.
-    swig_lib = {"SWIG_LIB": "external/swig/Lib"}
+    swig_lib = {"SWIG_LIB": paths.dirname(ctx.files._swig_lib[0].path)}
     ctx.actions.run(
         outputs = generated_c_files + [java_files_dir],
-        inputs = depset([src] + ctx.files.swig_includes, transitive = header_sets),
+        inputs = depset([src] + ctx.files.swig_includes + ctx.files._swig_lib, transitive = header_sets),
         env = swig_lib,
         executable = ctx.executable._swig,
         arguments = [swig_args],
@@ -127,6 +128,9 @@ It's expected that the `swig` binary exists in the host's path.
             executable = True,
             cfg = "exec",
         ),
+        "_swig_lib": attr.label(
+            default = Label("@swig//:lib_java"),
+        ),
         "swig_includes": attr.label_list(
             doc = "SWIG includes.",
             allow_files = True,
@@ -186,7 +190,7 @@ def ortools_java_wrap_cc(
         deps = deps,
         swig_opt = swig_opt,
         module = module,
-        swig_includes = swig_includes + ["@swig//:lib_java"],
+        swig_includes = swig_includes,
         use_directors = use_directors,
         visibility = ["//visibility:private"],
         **kwargs
@@ -196,7 +200,7 @@ def ortools_java_wrap_cc(
         name = cc_name,
         srcs = [outfile],
         hdrs = [outhdr] if use_directors else [],
-        deps = deps + ["@bazel_tools//tools/jdk:jni"],
+        deps = deps + [Label("@bazel_tools//tools/jdk:jni")],
         alwayslink = True,
         visibility = visibility,
         **kwargs

ortools/gscip/BUILD.bazel

@@ -131,7 +131,7 @@ cc_library(
     name = "gscip_callback_result",
     srcs = ["gscip_callback_result.cc"],
     hdrs = ["gscip_callback_result.h"],
-    deps = ["@scip//:libscip"],
+    deps = ["@scip"],
 )
 
 cc_library(
@@ -147,6 +147,6 @@ cc_library(
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/types:span",
-        "@scip//:libscip",
+        "@scip",
     ],
 )

ortools/linear_solver/BUILD.bazel

@@ -354,7 +354,7 @@ cc_library(
     srcs = ["lpi_glop.cpp"],
     deps = [
         "//ortools/glop:lp_solver",
-        "@scip//:libscip",
+        "@scip",
     ],
 )
 

ortools/linear_solver/proto_solver/BUILD.bazel

@@ -135,7 +135,7 @@ cc_library(
         "@com_google_absl//absl/strings:str_format",
         "@com_google_absl//absl/time",
     ] + select({
-        "//ortools/linear_solver:use_scip": ["@scip//:libscip"],
+        "//ortools/linear_solver:use_scip": ["@scip"],
         "//conditions:default": [],
     }),
 )

ortools/linear_solver/python/BUILD.bazel

@@ -25,7 +25,7 @@ pybind_extension(
         "//ortools/linear_solver:model_exporter",
         "//ortools/linear_solver/wrappers:model_builder_helper",
         "@com_google_absl//absl/strings",
-        "@eigen//:eigen3",
+        "@eigen",
         "@pybind11_protobuf//pybind11_protobuf:native_proto_caster",
     ],
 )

ortools/math_opt/io/BUILD.bazel

@@ -96,6 +96,6 @@ cc_library(
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
-        "@scip//:libscip",
+        "@scip",
     ],
 )

ortools/math_opt/solvers/BUILD.bazel

@@ -64,7 +64,7 @@ cc_library(
         "@com_google_absl//absl/time",
         "@com_google_absl//absl/types:span",
         "@com_google_protobuf//:protobuf",
-        "@scip//:libscip",
+        "@scip",
     ],
     alwayslink = 1,
 )
@@ -381,7 +381,7 @@ cc_library(
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/types:span",
-        "@eigen//:eigen3",
+        "@eigen",
     ],
 )
 

ortools/math_opt/solvers/gscip/BUILD.bazel

@@ -32,6 +32,6 @@ cc_library(
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/time",
-        "@scip//:libscip",
+        "@scip",
     ],
 )