#!/bin/bash
# Regression test: --help must not spill into build/mk-bootimg.sh's own code.
#
# build/fetch-vendor.sh's --help sliced its own source with a hardcoded line
# range that stopped one line too late, printing "set -uo pipefail" -- the
# first line of code -- as the last line of help text. mk-bootimg.sh's
# --help used the same hardcoded-range shape (currently pointed at the right
# span), so the same slip was one header-comment edit away here too. It now
# uses the same self-terminating awk pattern fetch-vendor.sh was fixed to
# use, so this pins both that it stays in sync as the header grows or
# shrinks and that it matches the header verbatim today.
set -uo pipefail

HERE="$(cd "$(dirname "$0")" && pwd)"
SCRIPT="$HERE/../../build/mk-bootimg.sh"
[ -f "$SCRIPT" ] || { echo "FAIL: script not found at $SCRIPT"; exit 1; }

fail=0

HELP_OUT="$(bash "$SCRIPT" --help)"

if printf '%s\n' "$HELP_OUT" | grep -q 'set -euo pipefail'; then
    echo "FAIL: --help prints the script's own code"
    fail=1
else
    echo "PASS: --help does not print the script's own code"
fi

LAST_LINE="$(printf '%s\n' "$HELP_OUT" | tail -1)"
if [ "$LAST_LINE" = "#                 [--resource-tool PATH]" ]; then
    echo "PASS: --help ends on the last header comment line, not past it"
else
    echo "FAIL: --help ends on the last header comment line, not past it (got: $LAST_LINE)"
    fail=1
fi

FIRST_LINE="$(printf '%s\n' "$HELP_OUT" | head -1)"
if [ "$FIRST_LINE" = "# Package a bootable boot.img from a kernel this SDK built." ]; then
    echo "PASS: --help starts after the shebang, not on it"
else
    echo "FAIL: --help starts after the shebang, not on it (got: $FIRST_LINE)"
    fail=1
fi

exit "$fail"