Changes in BUILD files of transitive dependencies are not tracked

[arjantop]

Expected behavior

Skaffold should track changes of transitive BUILD files.

Actual behavior

There is no tracking of transitive BUILD files currently.
Example: Base image defined in build file base/BUILD and usage of this image by go_image in service/BUILD. Changes of base image do not trigger rebuilds and wrong image is cached/tagged.

Information

• Skaffold version: v1.1.0
• Operating system: MacOS 10.15.2
• Bazel version: 1.2.0

Steps to reproduce the behavior

foo/BUILD

genrule(
        name = "foo",
        srcs = [
                "//bar:bar",
        ],
        outs = ["foo.txt"],
        cmd = "cat $(location //bar:bar) > $@",
)

bar/BUILD

genrule(
        name = "bar",
        outs = ["bar.txt"],
        cmd = "echo bar > $@",
        visibility = ["//visibility:public"],
)

Current bazel query: bazel query "kind('source file', deps('//foo:foo')) union buildfiles('//foo:foo')" --noimplicit_deps --order_output=no --output=label
Output:

//foo:BUILD

Fixed bazel query: bazel query "kind('source file', deps('//foo:foo')) union buildfiles(deps('//foo:foo'))" --noimplicit_deps --order_output=no --output=label
Output:

//bar:BUILD
//foo:BUILD