Foundation for being able to bazelify the build artifact -> build
package -> distribtest workflow tests.
Main ideas:
- "build artifact" and "build packages" will be represented by a custom
genrule (that runs the build on RBE under a docker container).
- since genrule doesn't support displaying logs for each target as a
separate "target log" (in the same way that bazel tests do), and we
generally want readable per-target logs for the bazelified test, a pair
of targets will be created for each "build artifact task":
- a genrule that actually performs the build, creates an archive with
artifacts and stores the exitcode and build log as rule outputs
- a corresponding "build_test" sh_test that simply looks at the result
of the genrule and presents the build log and build result a "target
log" for this test.
Jan Tattermusch