From fab303b26e0432673c42b2b8e9a8815979cbb6da Mon Sep 17 00:00:00 2001
From: Eric Anderson <ejona@google.com>
Date: Thu, 11 Oct 2018 13:51:58 -0700
Subject: [PATCH] Avoid interop build instructions when already built

This reduces the amount of logspam generated during interop testing.
Telling someone how to build when they have already obviously built
doesn't serve much purpose, now that everyone is used to it not
building automatically.
---
 run-test-client.sh | 14 ++++++++------
 run-test-server.sh | 14 ++++++++------
 2 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/run-test-client.sh b/run-test-client.sh
index ddcf236de2..b904148ae1 100755
--- a/run-test-client.sh
+++ b/run-test-client.sh
@@ -1,9 +1,11 @@
 #!/bin/bash -e
 cd "$(dirname "$0")"
-cat >&2 <<EOF
-Gradle is no longer run automatically. Make sure to run
-'./gradlew installDist -PskipCodegen=true' or
-'./gradlew :grpc-interop-testing:installDist -PskipCodegen=true' after any
-changes. -PskipCodegen=true is optional, but requires less setup.
+BIN="./interop-testing/build/install/grpc-interop-testing/bin/test-client"
+if [[ ! -e "$BIN" ]]; then
+  cat >&2 <<EOF
+Could not find binary. It can be built with:
+./gradlew :grpc-interop-testing:installDist -PskipCodegen=true
 EOF
-exec ./interop-testing/build/install/grpc-interop-testing/bin/test-client "$@"
+  exit 1
+fi
+exec "$BIN" "$@"
diff --git a/run-test-server.sh b/run-test-server.sh
index 487328adb2..a4da7261fc 100755
--- a/run-test-server.sh
+++ b/run-test-server.sh
@@ -1,9 +1,11 @@
 #!/bin/bash -e
 cd "$(dirname "$0")"
-cat >&2 <<EOF
-Gradle is no longer run automatically. Make sure to run
-'./gradlew installDist -PskipCodegen=true' or
-'./gradlew :grpc-interop-testing:installDist -PskipCodegen=true' after any
-changes. -PskipCodegen=true is optional, but requires less setup.
+BIN="./interop-testing/build/install/grpc-interop-testing/bin/test-server"
+if [[ ! -e "$BIN" ]]; then
+  cat >&2 <<EOF
+Could not find binary. It can be built with:
+./gradlew :grpc-interop-testing:installDist -PskipCodegen=true
 EOF
-exec ./interop-testing/build/install/grpc-interop-testing/bin/test-server "$@"
+  exit 1
+fi
+exec "$BIN" "$@"