| bleep_blop | 7629744 | 2017-12-24 06:53:20 +0000 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | set -eu |
| Zbigniew Jędrzejewski-Szmek | 005a29f | 2017-04-13 11:52:05 -0400 | [diff] [blame] | 3 | |
| Yu Watanabe | 07b3a02 | 2017-11-26 00:01:55 +0900 | [diff] [blame] | 4 | export SYSTEMD_LOG_LEVEL=info |
| 5 | |
| Zbigniew Jędrzejewski-Szmek | 005a29f | 2017-04-13 11:52:05 -0400 | [diff] [blame] | 6 | # output width |
| 7 | if "$1" --help | grep -v 'default:' | grep -E -q '.{80}.'; then |
| Zbigniew Jędrzejewski-Szmek | cc5549c | 2019-04-04 14:10:42 +0200 | [diff] [blame] | 8 | echo "$(basename "$1") --help output is too wide:" |
| 9 | "$1" --help | awk 'length > 80' | grep -E --color=yes '.{80}' |
| 10 | exit 1 |
| Zbigniew Jędrzejewski-Szmek | 005a29f | 2017-04-13 11:52:05 -0400 | [diff] [blame] | 11 | fi |
| 12 | |
| 13 | # no --help output to stdout |
| 14 | if "$1" --help 2>&1 1>/dev/null | grep .; then |
| Zbigniew Jędrzejewski-Szmek | cc5549c | 2019-04-04 14:10:42 +0200 | [diff] [blame] | 15 | echo "$(basename "$1") --help prints to stderr" |
| 16 | exit 2 |
| Zbigniew Jędrzejewski-Szmek | 005a29f | 2017-04-13 11:52:05 -0400 | [diff] [blame] | 17 | fi |
| 18 | |
| 19 | # error output to stderr |
| 20 | if ! "$1" --no-such-parameter 2>&1 1>/dev/null | grep -q .; then |
| Zbigniew Jędrzejewski-Szmek | cc5549c | 2019-04-04 14:10:42 +0200 | [diff] [blame] | 21 | echo "$(basename "$1") with an unknown parameter does not print to stderr" |
| 22 | exit 3 |
| Zbigniew Jędrzejewski-Szmek | 005a29f | 2017-04-13 11:52:05 -0400 | [diff] [blame] | 23 | fi |