linux/tools/perf/tests/shell/list.sh
James Clark 2f5d370dec perf test: Change all remaining #!/bin/sh to #!/bin/bash
There are 43 instances of posix shell tests and 35 instances of bash. To
give us a single consistent language for testing in, replace
all #!/bin/sh to #!/bin/bash. Common sources that are included in both
different shells will now work as expected. And we no longer have to fix
up bashisms that appear to work when someone's system has sh symlinked
to bash, but don't work on other systems that have both shells
installed.

Although we could have chosen sh, it's not backwards compatible so it
wouldn't be possible to bulk convert without re-writing the existing
bash tests.

Choosing bash also gives us some nicer features including 'local'
variable definitions and regexes in if statements that are already
widely used in the tests.

It's not expected that there are any users with only sh available due to
the large number of bash tests that exist.

Discussed in relation to running shellcheck here:
https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/

Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2025-06-26 10:31:05 -07:00

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#!/bin/bash
# perf list tests
# SPDX-License-Identifier: GPL-2.0
set -e
shelldir=$(dirname "$0")
# shellcheck source=lib/setup_python.sh
. "${shelldir}"/lib/setup_python.sh
list_output=$(mktemp /tmp/__perf_test.list_output.json.XXXXX)
cleanup() {
rm -f "${list_output}"
trap - EXIT TERM INT
}
trap_cleanup() {
cleanup
exit 1
}
trap trap_cleanup EXIT TERM INT
test_list_json() {
echo "Json output test"
# Generate perf list json output into list_output file.
perf list -j -o "${list_output}"
# Validate the json using python, redirect the json copy to /dev/null as
# otherwise the test may block writing to stdout.
$PYTHON -m json.tool "${list_output}" /dev/null
echo "Json output test [Success]"
}
test_list_json
cleanup
exit 0