mirror of
https://github.com/anchore/syft.git
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103 lines
2.4 KiB
Go
103 lines
2.4 KiB
Go
package etui
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import (
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"context"
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"fmt"
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"os"
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"sync"
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imgbomEvent "github.com/anchore/imgbom/imgbom/event"
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"github.com/anchore/imgbom/internal/log"
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"github.com/anchore/imgbom/internal/ui/common"
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stereoscopeEvent "github.com/anchore/stereoscope/pkg/event"
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"github.com/wagoodman/go-partybus"
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"github.com/wagoodman/jotframe/pkg/frame"
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)
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// TODO: specify per-platform implementations with build tags
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func setupScreen(output *os.File) *frame.Frame {
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config := frame.Config{
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PositionPolicy: frame.PolicyFloatForward,
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// only report output to stderr, reserve report output for stdout
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Output: output,
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}
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fr, err := frame.New(config)
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if err != nil {
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log.Errorf("failed to create screen object: %+v", err)
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return nil
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}
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return fr
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}
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func OutputToEphemeralTUI(workerErrs <-chan error, subscription *partybus.Subscription) int {
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output := os.Stderr
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// hide cursor
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_, _ = fmt.Fprint(output, "\x1b[?25l")
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// show cursor
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defer fmt.Fprint(output, "\x1b[?25h")
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fr := setupScreen(output)
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if fr == nil {
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return 1
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}
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var err error
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var wg = &sync.WaitGroup{}
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events := subscription.Events()
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ctx := context.Background()
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eventLoop:
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for {
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select {
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case e, ok := <-events:
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if !ok {
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// is this unexpected? if so should we indicate this?
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break eventLoop
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}
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switch e.Type {
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case stereoscopeEvent.ReadImage:
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err = imageReadHandler(ctx, fr, e, wg)
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if err != nil {
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log.Errorf("unable to show read image event: %+v", err)
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}
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case stereoscopeEvent.FetchImage:
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err = imageFetchHandler(ctx, fr, e, wg)
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if err != nil {
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log.Errorf("unable to show fetch image event: %+v", err)
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}
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case imgbomEvent.CatalogerStarted:
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err = catalogerStartedHandler(ctx, fr, e, wg)
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if err != nil {
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log.Errorf("unable to show catalog image start event: %+v", err)
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}
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case imgbomEvent.CatalogerFinished:
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// we may have other background processes still displaying progress, wait for them to
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// finish before discontinuing dynamic content and showing the final report
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wg.Wait()
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frame.Close()
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fmt.Println()
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err := common.CatalogerFinishedHandler(e)
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if err != nil {
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log.Errorf("unable to show catalog image finished event: %+v", err)
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}
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// this is the last expected event
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break eventLoop
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}
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case <-ctx.Done():
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if ctx.Err() != nil {
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log.Errorf("cancelled (%+v)", err)
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}
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break eventLoop
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}
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}
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return 0
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}
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