build: workaround for windows CI

Author: devversion

WORKSPACE

@@ -4,6 +4,12 @@ workspace(
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file")
 
+# Workaround for: https://github.com/bazel-contrib/bazel-lib/issues/968.
+# Override toolchain for tar on windows.
+register_toolchains(
+    "//bazel/tar-toolchain:windows_tar_system_toolchain",
+)
+
 NODE_VERSION = "18.20.0"
 
 # The PKG rules are needed to build tar packages for integration tests. The builtin

bazel/tar-toolchain/BUILD.bazel

@@ -0,0 +1,13 @@
+load("@aspect_bazel_lib//lib/private:tar_toolchain.bzl", "tar_toolchain")
+
+tar_toolchain(
+    name = "system_tar_exec",
+    binary = "tar_system.bat",
+)
+
+toolchain(
+    name = "windows_tar_system_toolchain",
+    exec_compatible_with = ["@platforms//os:windows"],
+    toolchain = ":system_tar_exec",
+    toolchain_type = "@aspect_bazel_lib//lib:tar_toolchain_type",
+)

bazel/tar-toolchain/tar_system.bat

@@ -0,0 +1,7 @@
+@ECHO OFF
+
+if exist "C:\Program Files\Git\bin\bash.exe" (
+  set "BASH=C:\Program Files\Git\bin\bash.exe"
+)
+
+"%BASH%" -c "tar %*"