bazel 是否支持不同平台上的远程执行？

Question

具体来说，我想在 Mac 主机上对 Windows 工作者运行测试。

running bazel remote executor test on separate machines 上的评论表明这是 Bazel 团队正在处理的事情，但想要确认。

Answer 1

试试看吧！

在您的 Windows 10 机器上构建并运行本地远程执行工作者：

git clone https://github.com/bazelbuild/bazel.git
cd bazel
bazel build src/tools/remote:worker
bazel-bin/src/tools/remote/worker --work_path=/tmp/test --listen_port=8080
bazel-out/x64_windows-fastbuild/bin/src/tools/remote/worker.exe --listen_port=8080 --work_path=C:\tmp\lre --debug

注意：如果它抱怨缺少某些命令，例如 zip，请打开 MSYS shell 并运行例如 pacman -Syu zip unzip

设置您的 .bazelrc 以使用远程执行：

# Remote Build Execution requires a strong hash function, such as SHA256.
startup --host_jvm_args=-Dbazel.DigestFunction=SHA256

# Depending on how many machines are in the remote execution instance, setting
# this higher can make builds faster by allowing more jobs to run in parallel.
# Setting it too high can result in jobs that timeout, however, while waiting
# for a remote machine to execute them.
build:remote --jobs=8


# Set various strategies so that all actions execute remotely. Mixing remote
# and local execution will lead to errors unless the toolchain and remote
# machine exactly match the host machine.
build:remote --spawn_strategy=remote
build:remote --strategy=Javac=remote
build:remote --strategy=Closure=remote
build:remote --genrule_strategy=remote
build:remote --define=EXECUTOR=remote

# Enable the remote cache so action results can be shared across machines,
# developers, and workspaces.
build:remote --remote_cache=localhost:8080

# Enable remote execution so actions are performed on the remote systems.
build:remote --remote_executor=localhost:8080

# Enable encryption.
#build:remote --tls_enabled=true

# Enforce stricter environment rules, which eliminates some non-hermetic
# behavior and therefore improves both the remote cache hit rate and the
# correctness and repeatability of the build.
build:remote --experimental_strict_action_env=true

# Set a higher timeout value, just in case.
build:remote --remote_timeout=3600

build:remote --auth_enabled=false

# Since we're testing remote execution, let's make sure it always actually
# happens.
build:remote --remote_accept_cached=false
test --cache_test_results=false

test --test_output=errors

# TODO(b/77217487): Needed for C++ builds until fix to
# https://github.com/bazelbuild/bazel/issues/4883 is available.
build --nocheck_visibility

build:debug --verbose_failures
build:debug --explain=explain.txt
build:debug --verbose_explanations
build:debug --toolchain_resolution_debug
build:debug --subcommands

现在从您的 Mac 进行远程构建（当然 localhost:8080 应该更改为您的 Windows 10 机器的 IP）：

bazel build --config=remote //:HelloWorld

现在进行远程执行

bazel run --config=remote //:HelloWorld

注意：无耻盗取https://github.com/bazelbuild/bazel/issues/4962