159 lines
4.0 KiB
Go
159 lines
4.0 KiB
Go
package view
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import (
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"github.com/derailed/k9s/internal"
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"github.com/derailed/k9s/internal/client"
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"github.com/derailed/k9s/internal/config"
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"github.com/derailed/k9s/internal/perf"
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"github.com/derailed/k9s/internal/render"
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"github.com/derailed/k9s/internal/ui"
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"github.com/gdamore/tcell"
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"github.com/rs/zerolog/log"
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)
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const (
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benchTitle = "Benchmarks"
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resultTitle = "Benchmark Results"
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)
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// Benchmark represents a service benchmark results view.
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type Benchmark struct {
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ResourceViewer
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details *Details
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}
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// NewBench returns a new viewer.
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func NewBenchmark(gvr client.GVR) ResourceViewer {
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b := Benchmark{
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ResourceViewer: NewBrowser(gvr),
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details: NewDetails(resultTitle),
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}
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b.GetTable().SetBorderFocusColor(tcell.ColorSeaGreen)
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b.GetTable().SetSelectedStyle(tcell.ColorWhite, tcell.ColorSeaGreen, tcell.AttrNone)
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b.GetTable().SetColorerFn(render.Benchmark{}.ColorerFunc())
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b.GetTable().SetSortCol(b.GetTable().NameColIndex()+7, 0, true)
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b.SetContextFn(b.benchContext)
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b.GetTable().SetEnterFn(b.viewBench)
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return &b
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}
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func (b *Benchmark) benchContext(ctx context.Context) context.Context {
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return context.WithValue(ctx, internal.KeyDir, benchDir(b.App().Config))
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}
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// BOZO!!
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// // Start runs the refresh loop
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// func (b *Bench) Start() {
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// log.Debug().Msgf(">>>> Bench START")
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// var ctx context.Context
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// ctx, b.cancelFn = context.WithCancel(context.Background())
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// if err := b.watchBenchDir(ctx); err != nil {
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// b.App().Flash().Errf("Unable to watch benchmarks directory %s", err)
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// }
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// }
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func (b *Benchmark) viewBench(app *App, ns, res, path string) {
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log.Debug().Msgf("VIEWBENCH %q -- %q -- %q", ns, res, path)
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data, err := readBenchFile(app.Config, b.benchFile())
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if err != nil {
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b.App().Flash().Errf("Unable to load bench file %s", err)
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return
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}
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b.details.SetText(data)
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b.details.SetSubject(fileToSubject(path))
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b.App().inject(b.details)
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return
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}
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func fileToSubject(path string) string {
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tokens := strings.Split(path, "/")
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log.Debug().Msgf("TOKENS %v", tokens)
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ee := strings.Split(tokens[len(tokens)-1], "_")
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return ee[0] + "/" + ee[1]
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}
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func (b *Benchmark) deleteCmd(evt *tcell.EventKey) *tcell.EventKey {
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if !b.GetTable().RowSelected() {
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return nil
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}
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sel, file := b.GetTable().GetSelectedItem(), b.benchFile()
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dir := filepath.Join(perf.K9sBenchDir, b.App().Config.K9s.CurrentCluster)
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showModal(b.App().Content.Pages, fmt.Sprintf("Delete benchmark `%s?", file), func() {
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if err := os.Remove(filepath.Join(dir, file)); err != nil {
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b.App().Flash().Errf("Unable to delete file %s", err)
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return
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}
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b.App().Flash().Infof("Benchmark %s deleted!", sel)
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})
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return nil
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}
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func (b *Benchmark) benchFile() string {
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r := b.GetTable().GetSelectedRowIndex()
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return ui.TrimCell(b.GetTable().SelectTable, r, 7)
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}
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// BOZO!!
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// func (b *Benchmark) watchBenchDir(ctx context.Context) error {
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// w, err := fsnotify.NewWatcher()
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// if err != nil {
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// return err
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// }
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// go func() {
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// for {
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// select {
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// case evt := <-w.Events:
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// log.Debug().Msgf("Bench event %#v", evt)
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// b.App().QueueUpdateDraw(func() {
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// b.Refresh()
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// })
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// case err := <-w.Errors:
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// log.Info().Err(err).Msg("Dir Watcher failed")
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// return
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// case <-ctx.Done():
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// log.Debug().Msg("!!!! FS WATCHER DONE!!")
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// if err := w.Close(); err != nil {
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// log.Error().Err(err).Msg("Closing bench watched")
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// }
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// return
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// }
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// }
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// }()
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// return w.Add(benchDir(b.App().Config))
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// }
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// ----------------------------------------------------------------------------
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// Helpers...
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func benchDir(cfg *config.Config) string {
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return filepath.Join(perf.K9sBenchDir, cfg.K9s.CurrentCluster)
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}
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func loadBenchDir(cfg *config.Config) ([]os.FileInfo, error) {
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return ioutil.ReadDir(benchDir(cfg))
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}
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func readBenchFile(cfg *config.Config, n string) (string, error) {
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data, err := ioutil.ReadFile(filepath.Join(benchDir(cfg), n))
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if err != nil {
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return "", err
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}
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return string(data), nil
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}
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