make parsing setup logs a _little_ easier (#546)

Restyled by shellharden

go test -update

cleaner fix

...

original spacing

Author: dacbd

environment/setup.sh

@@ -2,6 +2,8 @@
 FILE=/var/log/cml_stack.log
 if [ ! -f "$FILE" ]; then
   DEBIAN_FRONTEND=noninteractive
+  PS4='tpi:setup.sh: '
+  set -x
   echo "APT::Get::Assume-Yes \"true\";" | sudo tee -a /etc/apt/apt.conf.d/90assumeyes
 
   sudo apt remove unattended-upgrades

iterative/testdata/script_template_cloud_aws.golden

@@ -3,6 +3,8 @@ sudo systemctl is-enabled cml.service && return 0
 FILE=/var/log/cml_stack.log
 if [ ! -f "$FILE" ]; then
   DEBIAN_FRONTEND=noninteractive
+  PS4='tpi:setup.sh: '
+  set -x
   echo "APT::Get::Assume-Yes \"true\";" | sudo tee -a /etc/apt/apt.conf.d/90assumeyes
 
   sudo apt remove unattended-upgrades

iterative/testdata/script_template_cloud_azure.golden

@@ -3,6 +3,8 @@ sudo systemctl is-enabled cml.service && return 0
 FILE=/var/log/cml_stack.log
 if [ ! -f "$FILE" ]; then
   DEBIAN_FRONTEND=noninteractive
+  PS4='tpi:setup.sh: '
+  set -x
   echo "APT::Get::Assume-Yes \"true\";" | sudo tee -a /etc/apt/apt.conf.d/90assumeyes
 
   sudo apt remove unattended-upgrades

iterative/testdata/script_template_cloud_gcp.golden

@@ -3,6 +3,8 @@ sudo systemctl is-enabled cml.service && return 0
 FILE=/var/log/cml_stack.log
 if [ ! -f "$FILE" ]; then
   DEBIAN_FRONTEND=noninteractive
+  PS4='tpi:setup.sh: '
+  set -x
   echo "APT::Get::Assume-Yes \"true\";" | sudo tee -a /etc/apt/apt.conf.d/90assumeyes
 
   sudo apt remove unattended-upgrades

iterative/testdata/script_template_cloud_invalid.golden

@@ -3,6 +3,8 @@ sudo systemctl is-enabled cml.service && return 0
 FILE=/var/log/cml_stack.log
 if [ ! -f "$FILE" ]; then
   DEBIAN_FRONTEND=noninteractive
+  PS4='tpi:setup.sh: '
+  set -x
   echo "APT::Get::Assume-Yes \"true\";" | sudo tee -a /etc/apt/apt.conf.d/90assumeyes
 
   sudo apt remove unattended-upgrades