#!/bin/sh
# SPDX-FileCopyrightText: 2026 GPForum Contributors
# SPDX-License-Identifier: BSD-3-Clause

set -eu

gpforum_carton="$(CDPATH= cd -- "$(dirname "$0")" && pwd)/gpforum-carton"

# A coverage gate that measured nothing has not passed.
if [ ! -d t ] || ! find t -type f -name '*.t' | grep -q .; then
    echo "coverage: no tests found; nothing was measured" >&2
    exit 1
fi

rm -rf cover_db
# script/gpforum-carton exec chooses the native event backend in the
# environment, so nothing has to load ahead of Devel::Cover: an explicit
# interpreter for prove would ignore these switches and leave no database,
# and a module preloaded before Devel::Cover is reported as never run
# (t/699).
#
# t/ and t/integration, not t/performance: those tests drive the harness of
# script/lib/ -- which the report below does not select -- in timed child
# processes that Devel::Cover slowed past their deadlines and whose JSON it
# interleaved with its own output, so the first run that finished failed on
# them. They run uninstrumented in CI's lint job.
HARNESS_PERL_SWITCHES=-MDevel::Cover "$gpforum_carton" exec prove -l t t/integration "$@"

# The report covers lib/ only: the test files execute almost entirely, and
# counting them would inflate its denominator.
"$gpforum_carton" exec -- cover -select_re '^lib/' -silent

# The verdict: lib/ coverage against the ratchet in etc/coverage-floor.
exec "$gpforum_carton" exec script/coverage-check cover_db