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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /tools/check-help.sh | |
parent | Initial commit. (diff) | |
download | systemd-b750101eb236130cf056c675997decbac904cc49.tar.xz systemd-b750101eb236130cf056c675997decbac904cc49.zip |
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/check-help.sh')
-rwxr-xr-x | tools/check-help.sh | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/check-help.sh b/tools/check-help.sh new file mode 100755 index 0000000..f974293 --- /dev/null +++ b/tools/check-help.sh @@ -0,0 +1,47 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: LGPL-2.1-or-later +set -eu +set -o pipefail + +# Note: 'grep ... >/dev/null' instead of just 'grep -q' is used intentionally +# here, since 'grep -q' exits on the first match causing SIGPIPE being +# sent to the sender. + +BINARY="${1:?}" +export SYSTEMD_LOG_LEVEL=info + +if [[ ! -x "$BINARY" ]]; then + echo "$BINARY is not an executable" + exit 1 +fi + +# output width +if "$BINARY" --help | grep -v 'default:' | grep -E '.{80}.' >/dev/null; then + echo "$(basename "$BINARY") --help output is too wide:" + "$BINARY" --help | awk 'length > 80' | grep -E --color=yes '.{80}' + exit 1 +fi + +# --help prints something. Also catches case where args are ignored. +if ! "$BINARY" --help | grep . >/dev/null; then + echo "$(basename "$BINARY") --help output is empty" + exit 2 +fi + +# no --help output to stderr +if "$BINARY" --help 2>&1 1>/dev/null | grep .; then + echo "$(basename "$BINARY") --help prints to stderr" + exit 3 +fi + +# error output to stderr +if ! ("$BINARY" --no-such-parameter 2>&1 1>/dev/null || :) | grep . >/dev/null; then + echo "$(basename "$BINARY") with an unknown parameter does not print to stderr" + exit 4 +fi + +# --help and -h are equivalent +if ! diff <("$BINARY" -h) <("$BINARY" --help); then + echo "$(basename "$BINARY") --help and -h are not identical" + exit 5 +fi |