commit 9f07a46ce4f0970fd60ee743c130ef5ddd96d097
author Philipp Wollermann <philwo@google.com> Fri Jan 05 16:55:22 2018 +0100
committer Philipp Wollermann <philwo@google.com> Fri Jan 05 17:00:33 2018 +0100
tree f0d14d41ec31c2171014f5a50436dce624d8f35f
parent 33481a9b8807a28b5385be9d8924cb4ed12d8c0e

Add a "vms" command to gce/vm.sh that prints the current list of VMs.

This makes it easy to use with GNU parallel, e.g.:

gce/vm.sh vms | parallel gce/vm.sh reimage

gce/vm.sh

diff --git a/gce/vm.sh b/gce/vm.sh
index bf96734..2d94f05 100644
--- a/gce/vm.sh
+++ b/gce/vm.sh
@@ -335,6 +335,10 @@
   fi
 }
 
+function print_vm_name() {
+  echo $1
+}
+
 command="${1-}"
 shift || true
 
@@ -361,6 +365,9 @@
   "ssh_command")
     do_ssh_command "$@"
     ;;
+  "vms")
+    action print_vm_name "$@"
+    ;;
   "ssh")
     tag=$1
     location="$(test_slave "${tag}")"