linux-kernel - [PATCH v2 02/15] selftests/hid: vmtest.sh: allow finer control on the build steps

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Message-Id: <20231206-wip-selftests-v2-2-c0350c2f5986@kernel.org>
Date:   Wed, 06 Dec 2023 11:45:53 +0100
From:   Benjamin Tissoires <bentiss@...nel.org>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Peter Hutterer <peter.hutterer@...-t.net>
Cc:     linux-input@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Benjamin Tissoires <bentiss@...nel.org>
Subject: [PATCH v2 02/15] selftests/hid: vmtest.sh: allow finer control on
 the build steps

vmtest.sh works great for a one shot test, but not so much for CI where
I want to build (with different configs) the bzImage in a separate
job than the one I am running it.

Add a "build_only" option to specify whether we need to boot the currently
built kernel in the vm.

Reviewed-by: Peter Hutterer <peter.hutterer@...-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@...nel.org>

---

changes in v2:
- fixed typo
---
 tools/testing/selftests/hid/vmtest.sh | 42 ++++++++++++++++++++---------------
 1 file changed, 24 insertions(+), 18 deletions(-)

diff --git a/tools/testing/selftests/hid/vmtest.sh b/tools/testing/selftests/hid/vmtest.sh
index 301b4e162336..db534e9099a8 100755
--- a/tools/testing/selftests/hid/vmtest.sh
+++ b/tools/testing/selftests/hid/vmtest.sh
@@ -32,7 +32,7 @@ DEFAULT_COMMAND="pip3 install hid-tools; make -C tools/testing/selftests TARGETS
 usage()
 {
 	cat <<EOF
-Usage: $0 [-i] [-s] [-d <output_dir>] -- [<command>]
+Usage: $0 [-j N] [-s] [-b] [-d <output_dir>] -- [<command>]
 
 <command> is the command you would normally run when you are in
 the source kernel direcory. e.g:
@@ -55,6 +55,7 @@ Options:
 
 	-u)		Update the boot2container script to a newer version.
 	-d)		Update the output directory (default: ${OUTPUT_DIR})
+	-b)		Run only the build steps for the kernel and the selftests
 	-j)		Number of jobs for compilation, similar to -j in make
 			(default: ${NUM_COMPILE_JOBS})
 	-s)		Instead of powering off the VM, start an interactive
@@ -191,8 +192,9 @@ main()
 	local command="${DEFAULT_COMMAND}"
 	local update_b2c="no"
 	local debug_shell="no"
+	local build_only="no"
 
-	while getopts ':hsud:j:' opt; do
+	while getopts ':hsud:j:b' opt; do
 		case ${opt} in
 		u)
 			update_b2c="yes"
@@ -207,6 +209,9 @@ main()
 			command="/bin/sh"
 			debug_shell="yes"
 			;;
+		b)
+			build_only="yes"
+			;;
 		h)
 			usage
 			exit 0
@@ -226,8 +231,7 @@ main()
 	shift $((OPTIND -1))
 
 	# trap 'catch "$?"' EXIT
-
-	if [[ "${debug_shell}" == "no" ]]; then
+	if [[ "${build_only}" == "no" && "${debug_shell}" == "no" ]]; then
 		if [[ $# -eq 0 ]]; then
 			echo "No command specified, will run ${DEFAULT_COMMAND} in the vm"
 		else
@@ -267,24 +271,26 @@ main()
 	update_kconfig "${kernel_checkout}" "${kconfig_file}"
 
 	recompile_kernel "${kernel_checkout}" "${make_command}"
+	update_selftests "${kernel_checkout}" "${make_command}"
 
-	if [[ "${update_b2c}" == "no" && ! -f "${b2c}" ]]; then
-		echo "vm2c script not found in ${b2c}"
-		update_b2c="yes"
-	fi
+	if [[ "${build_only}" == "no" ]]; then
+		if [[ "${update_b2c}" == "no" && ! -f "${b2c}" ]]; then
+			echo "vm2c script not found in ${b2c}"
+			update_b2c="yes"
+		fi
 
-	if [[ "${update_b2c}" == "yes" ]]; then
-		download $B2C_URL $b2c
-		chmod +x $b2c
-	fi
+		if [[ "${update_b2c}" == "yes" ]]; then
+			download $B2C_URL $b2c
+			chmod +x $b2c
+		fi
 
-	update_selftests "${kernel_checkout}" "${make_command}"
-	run_vm "${kernel_checkout}" $b2c "${kernel_bzimage}" "${command}"
-	if [[ "${debug_shell}" != "yes" ]]; then
-		echo "Logs saved in ${OUTPUT_DIR}/${LOG_FILE}"
-	fi
+		run_vm "${kernel_checkout}" $b2c "${kernel_bzimage}" "${command}"
+		if [[ "${debug_shell}" != "yes" ]]; then
+			echo "Logs saved in ${OUTPUT_DIR}/${LOG_FILE}"
+		fi
 
-	exit $(cat ${OUTPUT_DIR}/${EXIT_STATUS_FILE})
+		exit $(cat ${OUTPUT_DIR}/${EXIT_STATUS_FILE})
+	fi
 }
 
 main "$@"

-- 
2.41.0