mirror of https://github.com/k3s-io/k3s
72 lines
1.8 KiB
Go
72 lines
1.8 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package crictl
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import (
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"fmt"
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"os"
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"strings"
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"text/tabwriter"
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)
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const (
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columnContainer = "CONTAINER"
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columnImage = "IMAGE"
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columnImageID = "IMAGE ID"
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columnCreated = "CREATED"
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columnState = "STATE"
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columnName = "NAME"
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columnAttempt = "ATTEMPT"
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columnPodID = "POD ID"
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columnPodRuntime = "RUNTIME"
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columnNamespace = "NAMESPACE"
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columnSize = "SIZE"
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columnTag = "TAG"
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columnDigest = "DIGEST"
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columnMemory = "MEM"
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columnInodes = "INODES"
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columnDisk = "DISK"
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columnCPU = "CPU %"
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)
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// display use to output something on screen with table format.
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type display struct {
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w *tabwriter.Writer
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}
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// newTableDisplay creates a display instance, and uses to format output with table.
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func newTableDisplay(minwidth, tabwidth, padding int, padchar byte, flags uint) *display {
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w := tabwriter.NewWriter(os.Stdout, minwidth, tabwidth, padding, padchar, 0)
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return &display{w}
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}
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// AddRow add a row of data.
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func (d *display) AddRow(row []string) {
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fmt.Fprintln(d.w, strings.Join(row, "\t"))
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}
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// Flush output all rows on screen.
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func (d *display) Flush() error {
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return d.w.Flush()
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}
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// ClearScreen clear all output on screen.
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func (d *display) ClearScreen() {
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fmt.Fprint(os.Stdout, "\033[2J")
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fmt.Fprint(os.Stdout, "\033[H")
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}
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