Bazel：使用另一个链接的 JS 依赖项构建 js_library（yarn 工作区）

Question

我有一个项目，其中包含多个 JS 包并使用 Yarn 工作区进行组织：

\n

<root>\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 WORKSPACE\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 workspaces\n\xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 foo\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 BUILD.bazel\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 src\n    \xe2\x94\x82\n    \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 bar\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 BUILD.bazel\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 src\n\n

\n

FOO包依赖于BAR包，它的定义在FOO/package.json：

\n

<root>\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 WORKSPACE\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 workspaces\n\xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 foo\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 BUILD.bazel\n\xe2\x94\x82   \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 src\n    \xe2\x94\x82\n    \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 bar\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 package.json\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 BUILD.bazel\n    \xe2\x94\x82   \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 src\n\n

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workspaces/bar/BUILD.bazel看起来像这样

\n

workspaces/foo/package.json\n\n{\n  "name": "FOO",\n  "dependencies": {\n     "BAR": "link:../bar",\n  }\n

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和这里workspaces/foo/BUILD.bazel

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load("@build_bazel_rules_nodejs//:index.bzl", "js_library")\njs_library(\n    name = "bar",\n    package_name = "BAR",\n    srcs = [\n        "package.json",\n        "index.js",\n    ],\n    visibility = ["//visibility:public"],\n)\n

\n

文件WORKSPACE包括：

\n

yarn_install(\n    name = "npm_foo",\n    package_json = "//workspaces/foo:package.json",\n    yarn_lock = "//workspaces/foo:yarn.lock",\n    package_path = "workspaces/foo",\n    strict_visibility = False,\n    # links = {\n    #     "bar": "//workspaces/bar",\n    # },\n    # generate_local_modules_build_files = True,\n)\n\nyarn_install(\n    name = "npm",\n    package_json = "//:package.json",\n    yarn_lock = "//:yarn.lock",\n)\n\nyarn_install(\n    name = "npm_bar",\n    package_json = "//workspaces/bar:package.json",\n    yarn_lock = "//workspaces/bar:yarn.lock",\n    package_path = "workspaces/bar",\n)\n

\n

完成所有这些设置后，我运行bazel build //workspaces/foo:foo但失败。\n我需要在 中配置links或generate_local_modules_build_files属性吗yarn_install？或者需要进行哪些更改才能使这些链接的包协同工作？

\n

Answer 1

至于纱线工作区不支持rules_nodejs，以下解决方法对我有用：

这里修改了workspaces/foo/BUILD.bazel

load("@build_bazel_rules_nodejs//:index.bzl", "js_library")

# this list contains all dependencies from the top level `package.json` file
# do not include linked `bar` package!
DEPENDENCIES = [
  "@npm//react",
  "@npm//react-dom",
  ...
]

# node_modules filegroup includes all dependencies from workspaces/foo/node_modules
filegroup(
    name = "node_modules",
    srcs = glob(
        include = [
            "node_modules/**",
        ],
    ),
)

js_library(
    name = "foo",
    package_name = "FOO",
    srcs = [
        "package.json",
        "index.js",
    ],
    deps = [
         "//workspaces/bar:bar", 
         ":node_modules"
    ] + DEPENDENCIES, 
    visibility = ["//visibility:public"],
)

并且WORKSPACE文件只有一个yarn_install顶级规则，package.json因为嵌套工作区被视为self-managed：

yarn_install(
    name = "npm",
    package_json = "//:package.json",
    yarn_lock = "//:yarn.lock",
)