您如何运行 Bazel 规则中其他规则的可执行文件？

Question

假设我有一个自定义规则，my_object。看起来像：

my_object(
  name = "foo",
  deps = [
    //services/image-A:push,
    //services/image-B:push,
  ]
)

其中 deps 中的标签是 rules_docker 的 container_push 规则。

我希望能够 bazel run //:foo 并将 Docker 图像推送到 deps 列表中。我该怎么做呢？

这似乎是一种特殊情况，通常只是想运行自定义规则的可执行文件中的其他规则的可执行文件。

Answer 1

这里要做的是让my_object输出一个执行其他可执行文件的可执行文件。

考虑这个例子：

def _impl1(ctx):
  ctx.actions.write(
    output = ctx.outputs.executable,
    is_executable = True,
    content = "echo %s 123" % ctx.label.name)
  return DefaultInfo(executable = ctx.outputs.executable)


exec_rule1 = rule(
  implementation = _impl1,
  executable = True,
)


def _impl2(ctx):

  executable_paths = []
  runfiles = ctx.runfiles()
  for dep in ctx.attr.deps:
    # the "./" is needed if the executable is in the current directory
    # (i.e. in the workspace root)
    executable_paths.append("./" + dep.files_to_run.executable.short_path)
    # collect the runfiles of the other executables so their own runfiles
    # will be available when the top-level executable runs
    runfiles = runfiles.merge(dep.default_runfiles)

  ctx.actions.write(
    output = ctx.outputs.executable,
    is_executable = True,
    content = "\n".join(executable_paths))

  return DefaultInfo(
    executable = ctx.outputs.executable,
    runfiles = runfiles)


exec_rule2 = rule(
  implementation = _impl2,
  executable = True,
  attrs = {
    "deps": attr.label_list(),
  },
)

BUILD.bazel:

load(":defs.bzl", "exec_rule1", "exec_rule2")

exec_rule1(name = "foo")
exec_rule1(name = "bar")
exec_rule2(name = "baz", deps = [":foo", ":bar"])

然后运行它：

$ bazel run //:baz
INFO: Analyzed target //:baz (4 packages loaded, 19 targets configured).
INFO: Found 1 target...
Target //:baz up-to-date:
  bazel-bin/baz
INFO: Elapsed time: 0.211s, Critical Path: 0.01s
INFO: 0 processes.
INFO: Build completed successfully, 6 total actions
INFO: Build completed successfully, 6 total actions
foo 123
bar 123

您如何运行 Bazel 规则中其他规则的可执行文件？

How can you run the executables of other rules within a Bazel rule?

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bazel-extra-action

您如何 运行 Bazel 规则中其他规则的可执行文件？

How can you run the executables of other rules within a Bazel rule?

bazel

bazel-extra-action

您如何运行 Bazel 规则中其他规则的可执行文件？