]> git.ipfire.org Git - thirdparty/systemd.git/blob - tools/check-help.sh
Merge pull request #15167 from ssahani/address-gen-mode
[thirdparty/systemd.git] / tools / check-help.sh
1 #!/bin/sh
2 set -eu
3
4 export SYSTEMD_LOG_LEVEL=info
5
6 # output width
7 if "$1" --help | grep -v 'default:' | grep -E -q '.{80}.'; then
8 echo "$(basename "$1") --help output is too wide:"
9 "$1" --help | awk 'length > 80' | grep -E --color=yes '.{80}'
10 exit 1
11 fi
12
13 # --help prints something. Also catches case where args are ignored.
14 if ! "$1" --help | grep -q .; then
15 echo "$(basename "$1") --help output is empty."
16 exit 2
17 fi
18
19 # no --help output to stdout
20 if "$1" --help 2>&1 1>/dev/null | grep .; then
21 echo "$(basename "$1") --help prints to stderr"
22 exit 3
23 fi
24
25 # error output to stderr
26 if ! "$1" --no-such-parameter 2>&1 1>/dev/null | grep -q .; then
27 echo "$(basename "$1") with an unknown parameter does not print to stderr"
28 exit 4
29 fi