我如何用 Bazel 構建這個簡單的例子？

Question

假設我有一個這樣的項目：

$ tree . 
├── WORKSPACE
├── include
│   └── header.hpp
└── main.cpp
└── BUILD.bazel

main.cpp看起來像這樣：

#include "header.hpp"

int main() {
  return 0;
}

我的BUILD.bazel文件應該是什么樣的？

我目前的嘗試：

cc_binary(
  name = "app",
  srcs = [
    "main.cpp",
    "include/header.hpp",
  ],
)

---

編輯：忘記提及我的WORKSPACE文件

---

編輯：找到了一個解決方法，但我認為它不是很優雅：

cc_library(
  name = "app-hdrs",
  hdrs = [
    "include/header.hpp",
  ],
  srcs = [
    "include/header.hpp",
  ],
  strip_include_prefix = "include",
)

cc_binary(
  name = "app",
  srcs = [
    "main.cpp",
  ],
  deps = [
    ":app-hdrs",
  ],
)

Answer 1

您的項目文件夾中需要一個名為WORKSPACE的文件：

$ tree . 
├── include
│   └── header.hpp
└── main.cpp
└── BUILD.bazel
└── WORKSPACE

然后您可以使用以下命令構建您的應用程序：

bazel build //:app

並在copts -flag 中指定包含路徑：

cc_binary(
  name = "app",
  srcs = [
    "main.cpp",
    "include/header.hpp",
  ],
  copts = ["-Iinclude", "-Wall", "-Werror"],
)

---

cc_binary(
  name = "app",
  includes = [ "include" ],
  srcs = [
    "main.cpp",
    "include/header.hpp",
  ],
  copts = [ "-Wall", "-Werror" ],
)