show age instead of creation time to shrink output width

pkg/knctl/cmd/age_value.go

@@ -0,0 +1,74 @@
+/*
+Copyright 2018 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package cmd
+
+import (
+	"fmt"
+	"time"
+
+	uitable "github.com/cppforlife/go-cli-ui/ui/table"
+)
+
+type ValueAge struct {
+	T time.Time
+}
+
+var _ uitable.Value = ValueAge{}
+
+func NewValueAge(t time.Time) ValueAge { return ValueAge{T: t} }
+
+func (t ValueAge) String() string {
+	if t.T.IsZero() {
+		return ""
+	}
+	return t.fmtDuration(time.Now().Sub(t.T))
+}
+
+func (t ValueAge) Value() uitable.Value { return t }
+
+func (t ValueAge) Compare(other uitable.Value) int {
+	otherT := other.(ValueAge).T
+	switch {
+	case t.T.Equal(otherT):
+		return 0
+	case t.T.Before(otherT):
+		return -1
+	default:
+		return 1
+	}
+}
+
+func (ValueAge) fmtDuration(d time.Duration) string {
+	d = d.Round(time.Minute)
+
+	days := d / (24 * time.Hour)
+	d -= days * 24 * time.Hour
+
+	hrs := d / time.Hour
+	d -= hrs * time.Hour
+
+	mins := d / time.Minute
+
+	switch {
+	case days > 0:
+		return fmt.Sprintf("%dd", days)
+	case hrs > 0:
+		return fmt.Sprintf("%dh", hrs)
+	default:
+		return fmt.Sprintf("%dm", mins)
+	}
+}

pkg/knctl/cmd/list_builds.go

@@ -73,7 +73,7 @@ func (o *ListBuildsOptions) Run() error {
 			uitable.NewHeader("Name"),
 			uitable.NewHeader("Builder"),
 			uitable.NewHeader("Succeeded"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -86,7 +86,7 @@ func (o *ListBuildsOptions) Run() error {
 			uitable.NewValueString(build.Name),
 			uitable.NewValueString(string(build.Status.Builder)),
 			o.succeededValue(build),
-			uitable.NewValueTime(build.CreationTimestamp.Time),
+			NewValueAge(build.CreationTimestamp.Time),
 		})
 	}
 

pkg/knctl/cmd/list_ingresses.go

@@ -64,7 +64,7 @@ func (o *ListIngressesOptions) Run() error {
 			uitable.NewHeader("Name"),
 			uitable.NewHeader("Addresses"),
 			uitable.NewHeader("Ports"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -93,7 +93,7 @@ func (o *ListIngressesOptions) Run() error {
 			uitable.NewValueString(svc.Name),
 			uitable.NewValueStrings(addrs),
 			uitable.NewValueStrings(ports),
-			uitable.NewValueTime(svc.CreationTimestamp.Time),
+			NewValueAge(svc.CreationTimestamp.Time),
 		})
 	}
 

pkg/knctl/cmd/list_pods.go

@@ -64,7 +64,7 @@ func (o *ListPodsOptions) Run() error {
 			uitable.NewHeader("Name"),
 			uitable.NewHeader("Phase"),
 			uitable.NewHeader("Restarts"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -82,7 +82,7 @@ func (o *ListPodsOptions) Run() error {
 				Error: !o.isOKStatus(pod),
 			},
 			uitable.NewValueInt(o.podRestarts(pod)),
-			uitable.NewValueTime(pod.CreationTimestamp.Time),
+			NewValueAge(pod.CreationTimestamp.Time),
 		})
 	}
 

pkg/knctl/cmd/list_revisions.go

@@ -88,7 +88,7 @@ func (o *ListRevisionsOptions) Run() error {
 			uitable.NewHeader("Allocated Traffic %"),
 			uitable.NewHeader("Serving State"),
 			uitable.NewHeader("Annotations"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -103,7 +103,7 @@ func (o *ListRevisionsOptions) Run() error {
 			NewAllocatedTrafficPercentValue(service, rev),
 			uitable.NewValueString(string(rev.Spec.ServingState)),
 			NewAnnotationsValue(rev.Annotations),
-			uitable.NewValueTime(rev.CreationTimestamp.Time),
+			NewValueAge(rev.CreationTimestamp.Time),
 		})
 	}
 

pkg/knctl/cmd/list_routes.go

@@ -76,7 +76,7 @@ func (o *ListRoutesOptions) Run() error {
 			uitable.NewHeader("Ready"),
 			uitable.NewHeader("Domain"),
 			uitable.NewHeader("Internal Domain"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -92,7 +92,7 @@ func (o *ListRoutesOptions) Run() error {
 			o.readyValue(route),
 			uitable.NewValueString(route.Status.Domain),
 			uitable.NewValueString(route.Status.DomainInternal),
-			uitable.NewValueTime(route.CreationTimestamp.Time),
+			NewValueAge(route.CreationTimestamp.Time),
 		})
 	}
 

pkg/knctl/cmd/list_services.go

@@ -72,7 +72,7 @@ func (o *ListServicesOptions) Run() error {
 			uitable.NewHeader("Domain"),
 			uitable.NewHeader("Internal Domain"),
 			uitable.NewHeader("Annotations"),
-			uitable.NewHeader("Created At"),
+			uitable.NewHeader("Age"),
 		},
 
 		SortBy: []uitable.ColumnSort{
@@ -86,7 +86,7 @@ func (o *ListServicesOptions) Run() error {
 			uitable.NewValueString(svc.Status.Domain),
 			uitable.NewValueString(svc.Status.DomainInternal),
 			NewAnnotationsValue(svc.Annotations),
-			uitable.NewValueTime(svc.CreationTimestamp.Time),
+			NewValueAge(svc.CreationTimestamp.Time),
 		})
 	}