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package progresswriter
import (
"context"
"os"
"github.com/containerd/console"
"github.com/moby/buildkit/client"
"github.com/moby/buildkit/util/progress/progressui"
)
type printer struct {
status chan *client.SolveStatus
done <-chan struct{}
err error
}
func (p *printer) Done() <-chan struct{} {
return p.done
}
func (p *printer) Err() error {
return p.err
}
func (p *printer) Status() chan *client.SolveStatus {
if p == nil {
return nil
}
return p.status
}
type tee struct {
Writer
status chan *client.SolveStatus
}
func (t *tee) Status() chan *client.SolveStatus {
return t.status
}
func Tee(w Writer, ch chan *client.SolveStatus) Writer {
st := make(chan *client.SolveStatus)
t := &tee{
status: st,
Writer: w,
}
go func() {
for v := range st {
w.Status() <- v
ch <- v
}
close(w.Status())
close(ch)
}()
return t
}
func NewPrinter(ctx context.Context, out console.File, mode string) (Writer, error) {
statusCh := make(chan *client.SolveStatus)
doneCh := make(chan struct{})
pw := &printer{
status: statusCh,
done: doneCh,
}
if v := os.Getenv("BUILDKIT_PROGRESS"); v != "" && mode == "auto" {
mode = v
}
d, err := progressui.NewDisplay(out, progressui.DisplayMode(mode))
if err != nil {
return nil, err
}
go func() {
// not using shared context to not disrupt display but let is finish reporting errors
_, pw.err = d.UpdateFrom(ctx, statusCh)
close(doneCh)
}()
return pw, nil
}
|
