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Make CLI functions return error instead of fatal out (#1379)

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Before this PR, CLI functions fatal out when encountering error
instead of returning it. Such behavior makes it hard to reuse 
the functions nor writing unit tests. This PR aims to make functions 
return errors instead of error out.
This commit is contained in:
Ta-Ching Chen
2019-11-05 16:50:13 +08:00
committed by GitHub
parent b0d27ee5d2
commit 93d4b88d84
72 changed files with 894 additions and 632 deletions
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pkg/fission-cli/cmd/support/resources/kubernetes.go
+13 -13
View File
@@ -28,7 +28,7 @@ import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"github.com/fission/fission/pkg/fission-cli/log"
"github.com/fission/fission/pkg/fission-cli/consolemsg"
)
const (
@@ -52,7 +52,7 @@ func NewKubernetesVersion(clientset *kubernetes.Clientset) Resource {
func (res KubernetesVersion) Dump(dumpDir string) {
serverVer, err := res.client.ServerVersion()
if err != nil {
log.Info(fmt.Sprintf("Error setting up kubernetes client: %v", err))
consolemsg.Info(fmt.Sprintf("Error setting up kubernetes client: %v", err))
return
}
@@ -80,7 +80,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesService:
objs, err := res.client.CoreV1().Services(metav1.NamespaceAll).List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -93,7 +93,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesDeployment:
objs, err := res.client.AppsV1().Deployments(metav1.NamespaceAll).List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -105,7 +105,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesPod:
objs, err := res.client.CoreV1().Pods(metav1.NamespaceAll).List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -117,7 +117,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesHPA:
objs, err := res.client.AutoscalingV2beta1().HorizontalPodAutoscalers(metav1.NamespaceAll).List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -129,7 +129,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesDaemonSet:
objs, err := res.client.AppsV1().DaemonSets(metav1.NamespaceAll).List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -141,7 +141,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
case KubernetesNode:
objs, err := res.client.CoreV1().Nodes().List(metav1.ListOptions{LabelSelector: res.selector})
if err != nil {
log.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
consolemsg.Info(fmt.Sprintf("Error getting %v list with selector %v: %v", res.objType, res.selector, err))
return
}
@@ -153,7 +153,7 @@ func (res KubernetesObjectDumper) Dump(dumpDir string) {
}
default:
log.Info(fmt.Sprintf("Unknown type: %v", res.objType))
consolemsg.Info(fmt.Sprintf("Unknown type: %v", res.objType))
return
}
}
@@ -199,7 +199,7 @@ func (res KubernetesPodLogDumper) Dump(dumpDir string) {
Pods(metav1.NamespaceAll).
List(metav1.ListOptions{LabelSelector: res.labelSelector})
if err != nil {
log.Info(fmt.Sprintf("Error getting controller list: %v", err))
consolemsg.Info(fmt.Sprintf("Error getting controller list: %v", err))
return
}
@@ -218,7 +218,7 @@ func (res KubernetesPodLogDumper) Dump(dumpDir string) {
stream, err := req.Stream()
if err != nil {
log.Info(fmt.Sprintf("Error streaming logs for pod %v: %v", pod.Name, err))
consolemsg.Info(fmt.Sprintf("Error streaming logs for pod %v: %v", pod.Name, err))
return
}
@@ -232,13 +232,13 @@ func (res KubernetesPodLogDumper) Dump(dumpDir string) {
stream.Close()
break
}
log.Info(fmt.Sprintf("Error reading logs from buffer: %v", err))
consolemsg.Info(fmt.Sprintf("Error reading logs from buffer: %v", err))
return
}
_, err = buffer.WriteString(string(line) + "\n")
if err != nil {
log.Info(fmt.Sprintf("Error writing bytes to buffer: %v", err))
consolemsg.Info(fmt.Sprintf("Error writing bytes to buffer: %v", err))
}
}