perf testsuite: Add initialization script for shell tests

Initialize reporting and logging functions that unifies formatting
of the test output used for shell tests.
Signed-off-by: Veronika Molnarova <vmolnaro@redhat.com>
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: kjain@linux.ibm.com
Cc: atrajeev@linux.vnet.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240215110231.15385-4-mpetlan@redhat.com

tools/perf/tests/shell/common/init.sh

+# SPDX-License-Identifier: GPL-2.0
+#
+#	init.sh
+#	Author: Michael Petlan <mpetlan@redhat.com>
+#
+#	Description:
+#
+#		This file should be used for initialization of basic functions
+#	for checking, reporting results etc.
+#
+#
+
+
+. ../common/settings.sh
+. ../common/patterns.sh
+
+THIS_TEST_NAME=`basename $0 .sh`
+
+_echo()
+{
+	test "$TESTLOG_VERBOSITY" -ne 0 && echo -e "$@"
+}
+
+print_results()
+{
+	PERF_RETVAL="$1"; shift
+	CHECK_RETVAL="$1"; shift
+	FAILURE_REASON=""
+	TASK_COMMENT="$@"
+	if [ $PERF_RETVAL -eq 0 -a $CHECK_RETVAL -eq 0 ]; then
+		_echo "$MPASS-- [ PASS ] --$MEND $TEST_NAME :: $THIS_TEST_NAME :: $TASK_COMMENT"
+		return 0
+	else
+		if [ $PERF_RETVAL -ne 0 ]; then
+			FAILURE_REASON="command exitcode"
+		fi
+		if [ $CHECK_RETVAL -ne 0 ]; then
+			test -n "$FAILURE_REASON" && FAILURE_REASON="$FAILURE_REASON + "
+			FAILURE_REASON="$FAILURE_REASON""output regexp parsing"
+		fi
+		_echo "$MFAIL-- [ FAIL ] --$MEND $TEST_NAME :: $THIS_TEST_NAME :: $TASK_COMMENT ($FAILURE_REASON)"
+		return 1
+	fi
+}
+
+print_overall_results()
+{
+	RETVAL="$1"; shift
+	if [ $RETVAL -eq 0 ]; then
+		_echo "$MALLPASS## [ PASS ] ##$MEND $TEST_NAME :: $THIS_TEST_NAME SUMMARY"
+	else
+		_echo "$MALLFAIL## [ FAIL ] ##$MEND $TEST_NAME :: $THIS_TEST_NAME SUMMARY :: $RETVAL failures found"
+	fi
+	return $RETVAL
+}
+
+print_testcase_skipped()
+{
+	TASK_COMMENT="$@"
+	_echo "$MSKIP-- [ SKIP ] --$MEND $TEST_NAME :: $THIS_TEST_NAME :: $TASK_COMMENT :: testcase skipped"
+	return 0
+}
+
+print_overall_skipped()
+{
+	_echo "$MSKIP## [ SKIP ] ##$MEND $TEST_NAME :: $THIS_TEST_NAME :: testcase skipped"
+	return 0
+}
+
+print_warning()
+{
+	WARN_COMMENT="$@"
+	_echo "$MWARN-- [ WARN ] --$MEND $TEST_NAME :: $THIS_TEST_NAME :: $WARN_COMMENT"
+	return 0
+}
+
+# this function should skip a testcase if the testsuite is not run in
+# a runmode that fits the testcase --> if the suite runs in BASIC mode
+# all STANDARD and EXPERIMENTAL testcases will be skipped; if the suite
+# runs in STANDARD mode, all EXPERIMENTAL testcases will be skipped and
+# if the suite runs in EXPERIMENTAL mode, nothing is skipped
+consider_skipping()
+{
+	TESTCASE_RUNMODE="$1"
+	# the runmode of a testcase needs to be at least the current suite's runmode
+	if [ $PERFTOOL_TESTSUITE_RUNMODE -lt $TESTCASE_RUNMODE ]; then
+		print_overall_skipped
+		exit 0
+	fi
+}
+
+detect_baremetal()
+{
+	# return values:
+	# 0 = bare metal
+	# 1 = virtualization detected
+	# 2 = unknown state
+	VIRT=`systemd-detect-virt 2>/dev/null`
+	test $? -eq 127 && return 2
+	test "$VIRT" = "none"
+}
+
+detect_intel()
+{
+	# return values:
+	# 0 = is Intel
+	# 1 = is not Intel or unknown
+	grep "vendor_id" < /proc/cpuinfo | grep -q "GenuineIntel"
+}
+
+detect_amd()
+{
+	# return values:
+	# 0 = is AMD
+	# 1 = is not AMD or unknown
+	grep "vendor_id" < /proc/cpuinfo | grep -q "AMD"
+}