BUILD.bazel

load("@bazel_skylib//rules:build_test.bzl", "build_test")
load("@bazel_skylib//rules:common_settings.bzl", "string_flag")
load(":defs.bzl", "py_debuggable_binary")

# --------------------------------------------------------------------------- #
# Build mode flag.
#
# The default is "debug" (debugpy wraps the entrypoint).
# Pass --config=release or --//:mode=prod to get a clean binary.
# --------------------------------------------------------------------------- #

string_flag(
    name = "mode",
    build_setting_default = "debug",
    values = [
        "debug",
        "prod",
    ],
)

config_setting(
    name = "is_debug",
    flag_values = {":mode": "debug"},
)

config_setting(
    name = "is_prod",
    flag_values = {":mode": "prod"},
)

# --------------------------------------------------------------------------- #
# Application target
#
# In debug mode, debug_main.py wraps app.py — it starts a debugpy DAP
# listener then imports and runs app.main(). In prod mode, app.py is
# the entrypoint directly and debugpy is not present.
# --------------------------------------------------------------------------- #

py_debuggable_binary(
    name = "app",
    srcs = ["app.py"],
    debug_deps = [
        "@pypi//debugpy",
    ],
    main = "app.py",
    deps = [
        "@pypi//flask",
    ],
)

# Ensure the example binary builds on CI (it is a long-running Flask server,
# so it can't be run as a test).
build_test(
    name = "app_build_test",
    targets = [":app"],
)