snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

scripts/common.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+fail_on_output() {
+  tee /dev/stderr | not read
+}
+
+# not makes sure the command passed to it does not exit with a return code of 0.
+not() {
+  # This is required instead of the earlier (! $COMMAND) because subshells and
+  # pipefail don't work the same on Darwin as in Linux.
+  ! "$@"
+}
+
+# noret_grep will return 0 if zero or more lines were selected, and >1 if an
+# error occurred. Suppresses grep's return code of 1 when there are no matches
+# (for eg, empty file).
+noret_grep() {
+  grep "$@" || [[ $? == 1 ]]
+}
+
+die() {
+  echo "$@" >&2
+  exit 1
+}