Provide a custom grep() function to catch direct usage of the command. Bare grep calls are generally incompatible with pipefail and errexit behavior (where a failed match causes the script to exit). Developers can still call grep via command grep if that behavior is explicitly desired.
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| @@ -56,6 +56,13 @@ grep0() { · 55 unmodified lines | |||
| 56 | command grep "$@" || true | 56 | command grep "$@" || true |
| 57 | } | 57 | } |
| 58 | 58 | ||
| 59 | # Because pipefail is enabled, the grep0 helper should be used instead of | ||
| 60 | # grep, otherwise a failed match can propagate to an error. | ||
| 61 | grep() { | ||
| 62 | echo "error: $SCRIPT: use grep0 or 'command grep' instead of bare grep" >&2 | ||
| 63 | exit 1 | ||
| 64 | } | ||
| 65 | |||
| 59 | status() { | 66 | status() { |
| 60 | echo "$*" | 67 | echo "$*" |
| 61 | } | 68 | } |