d3591b687a
Adds tables and colors using libraries used in consul-k8s. It doesn't add the full `terminal` UI package that consul-k8s uses since there is an existing UI in Consul that I didn't want to affect too much. So instead this adds to the existing UI.
100 lines
2.2 KiB
Go
100 lines
2.2 KiB
Go
package cli
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import (
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"fmt"
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"io"
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"github.com/olekukonko/tablewriter"
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mcli "github.com/mitchellh/cli"
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)
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// Ui implements the mitchellh/cli.Ui interface, while exposing the underlying
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// io.Writer used for stdout and stderr.
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// TODO: rename to UI to match golang style guide
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type Ui interface {
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mcli.Ui
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Stdout() io.Writer
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Stderr() io.Writer
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ErrorOutput(string)
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HeaderOutput(string)
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WarnOutput(string)
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SuccessOutput(string)
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UnchangedOutput(string)
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Table(tbl *Table)
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}
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// BasicUI augments mitchellh/cli.BasicUi by exposing the underlying io.Writer.
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type BasicUI struct {
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mcli.BasicUi
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}
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func (b *BasicUI) Stdout() io.Writer {
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return b.BasicUi.Writer
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}
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func (b *BasicUI) Stderr() io.Writer {
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return b.BasicUi.ErrorWriter
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}
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func (b *BasicUI) HeaderOutput(s string) {
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b.Output(colorize(fmt.Sprintf("==> %s", s), UiColorNone))
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}
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func (b *BasicUI) ErrorOutput(s string) {
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b.Output(colorize(fmt.Sprintf(" ! %s", s), UiColorRed))
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}
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func (b *BasicUI) WarnOutput(s string) {
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b.Output(colorize(fmt.Sprintf(" * %s", s), UiColorYellow))
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}
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func (b *BasicUI) SuccessOutput(s string) {
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b.Output(colorize(fmt.Sprintf(" ✓ %s", s), UiColorGreen))
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}
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func (b *BasicUI) UnchangedOutput(s string) {
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b.Output(colorize(fmt.Sprintf(" %s", s), UiColorNone))
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}
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// Command is an alias to reduce the diff. It can be removed at any time.
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type Command mcli.Command
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// Table implements UI.
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func (u *BasicUI) Table(tbl *Table) {
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// Build our config and set our options
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table := tablewriter.NewWriter(u.Stdout())
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table.SetHeader(tbl.Headers)
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table.SetBorder(false)
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table.SetAutoWrapText(false)
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table.SetAutoFormatHeaders(false)
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table.SetHeaderAlignment(tablewriter.ALIGN_LEFT)
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table.SetAlignment(tablewriter.ALIGN_LEFT)
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table.SetCenterSeparator("")
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table.SetColumnSeparator("")
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table.SetRowSeparator("")
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table.SetHeaderLine(false)
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table.SetTablePadding("\t") // pad with tabs
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table.SetNoWhiteSpace(true)
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for _, row := range tbl.Rows {
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colors := make([]tablewriter.Colors, len(row))
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entries := make([]string, len(row))
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for i, ent := range row {
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entries[i] = ent.Value
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color, ok := colorMapping[ent.Color]
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if ok {
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colors[i] = tablewriter.Colors{color}
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}
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}
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table.Rich(entries, colors)
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}
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table.Render()
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}
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