Let’s say my WORKSPACE file in the root directory of my project looks like this:

workspace(name = "some_workspace")

load(@bazel_tools//tools/build_defs/repo:local.bzl)

new_local_repository(
    name = "some_repo"
    build_file = "//bazel/third_party:some_repo.BUILD",
    path = "C:/some_repo",
)

And bazel/third_party/some_repo.BUILD looks like this:

cc_library(
    name = "some_library",
    srcs = glob(["src/**/*.cpp"]),
    visibility = ["//visibility:public"],
)

Questions (all questions pertain to code written in some_repo.BUILD):

1. Since I used the build_file parameter, all paths defined in some_repo.BUILD are relative to the directory of the my_repo repository, so I can just write "src/**/*.cpp" instead of @my_repo/src/**/*.cpp, correct?

2. Would "//src/**/*.cpp" point to the root directory of my project or to the root directory of my_repo? If the latter, how can I access the root directory of my project? With "@some_workspace//"?

3. Does the double slash in "//visibility:public" point to root directory of my project or to the root directory of my_repo? If the latter, is this target then only visible to packages inside my_repo? How can I set the target visible to all packages inside my project?