From aa07bdfbaab8af8518196762099c63823a22a3c4 Mon Sep 17 00:00:00 2001
From: Michael Vines <mvines@gmail.com>
Date: Thu, 6 Sep 2018 10:28:26 -0700
Subject: [PATCH] Optionally suppress delete confirmation

---
 net/gce.sh        | 10 +++++++---
 scripts/gcloud.sh | 11 +++++++++--
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/net/gce.sh b/net/gce.sh
index 06157f19c..af307a75c 100755
--- a/net/gce.sh
+++ b/net/gce.sh
@@ -20,6 +20,7 @@ imageName="ubuntu-16-04-cuda-9-2-new"
 publicNetwork=false
 zone="us-west1-b"
 leaderAddress=
+yes=false
 
 usage() {
   exitcode=0
@@ -53,7 +54,7 @@ Configure a GCE-based testnet
    none
 
  delete-specific options:
-   none
+   -y               - Skip delete confirmation, assume yes
 
 EOF
   exit $exitcode
@@ -65,7 +66,7 @@ command=$1
 shift
 [[ $command = create || $command = config || $command = delete ]] || usage "Invalid command: $command"
 
-while getopts "h?p:Pi:n:c:z:ga:" opt; do
+while getopts "h?p:Pi:n:c:z:ga:y" opt; do
   case $opt in
   h | \?)
     usage
@@ -80,6 +81,9 @@ while getopts "h?p:Pi:n:c:z:ga:" opt; do
   i)
     imageName=$OPTARG
     ;;
+  y)
+    yes=true
+    ;;
   n)
     validatorNodeCount=$OPTARG
     ;;
@@ -180,7 +184,7 @@ delete)
     echo "No instances found matching '^$prefix-'"
     exit 0
   fi
-  gcloud_DeleteInstances
+  gcloud_DeleteInstances "$yes"
   rm -f "$configFile"
   ;;
 
diff --git a/scripts/gcloud.sh b/scripts/gcloud.sh
index 571ed2ede..b452108ee 100644
--- a/scripts/gcloud.sh
+++ b/scripts/gcloud.sh
@@ -149,11 +149,18 @@ gcloud_CreateInstances() {
 }
 
 #
-# gcloud_DeleteInstances
+# gcloud_DeleteInstances [yes]
 #
 # Deletes all the instances listed in the `instances` array
 #
+# If yes = "true", skip the delete confirmation
+#
 gcloud_DeleteInstances() {
+  declare maybeQuiet=
+  if [[ $1 = true ]]; then
+    maybeQuiet=--quiet
+  fi
+
   if [[ ${#instances[0]} -eq 0 ]]; then
     echo No instances to delete
     return
@@ -167,7 +174,7 @@ gcloud_DeleteInstances() {
 
   (
     set -x
-    gcloud beta compute instances delete --zone "$zone" "${names[@]}"
+    gcloud beta compute instances delete --zone "$zone" $maybeQuiet "${names[@]}"
   )
 }