103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
package render
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import (
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"fmt"
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"strings"
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"github.com/gdamore/tcell"
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"github.com/rs/zerolog/log"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/tools/clientcmd/api"
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)
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// Context renders a K8s ConfigMap to screen.
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type Context struct{}
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// ColorerFunc colors a resource row.
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func (Context) ColorerFunc() ColorerFunc {
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return func(ns string, r RowEvent) tcell.Color {
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c := DefaultColorer(ns, r)
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if r.Kind == EventAdd || r.Kind == EventUpdate {
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return c
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}
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if strings.Contains(strings.TrimSpace(r.Row.Fields[0]), "*") {
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c = HighlightColor
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}
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return c
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}
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}
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// Header returns a header row.
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func (Context) Header(ns string) HeaderRow {
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return HeaderRow{
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Header{Name: "NAME"},
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Header{Name: "CLUSTER"},
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Header{Name: "AUTHINFO"},
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Header{Name: "NAMESPACE"},
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}
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}
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// Render renders a K8s resource to screen.
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func (c Context) Render(o interface{}, _ string, r *Row) error {
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ctx, ok := o.(*NamedContext)
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if !ok {
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return fmt.Errorf("expected *NamedContext, but got %T", o)
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}
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name := ctx.Name
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if ctx.IsCurrentContext(ctx.Name) {
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name += "(*)"
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}
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r.ID = ctx.Name
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r.Fields = Fields{
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name,
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ctx.Context.Cluster,
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ctx.Context.AuthInfo,
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ctx.Context.Namespace,
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}
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return nil
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}
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// Helpers...
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// NamedContext represents a named cluster context.
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type NamedContext struct {
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Name string
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Context *api.Context
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Config ContextNamer
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}
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// ContextNamer represents a named context.
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type ContextNamer interface {
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CurrentContextName() (string, error)
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}
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// NewNamedContext returns a new named context.
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func NewNamedContext(c ContextNamer, n string, ctx *api.Context) *NamedContext {
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return &NamedContext{Name: n, Context: ctx, Config: c}
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}
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// IsCurrentContext return the active context name.
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func (c *NamedContext) IsCurrentContext(n string) bool {
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cl, err := c.Config.CurrentContextName()
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if err != nil {
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log.Fatal().Err(err).Msg("Fetching current context")
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return false
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}
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return cl == n
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}
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// GetObjectKind returns a schema object.
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func (c *NamedContext) GetObjectKind() schema.ObjectKind {
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return nil
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}
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// DeepCopyObject returns a container copy.
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func (c *NamedContext) DeepCopyObject() runtime.Object {
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return c
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}
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