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package progress
import (
"context"
"os"
"sync"
"github.com/containerd/console"
"github.com/docker/buildx/util/logutil"
"github.com/mitchellh/hashstructure/v2"
"github.com/moby/buildkit/client"
"github.com/moby/buildkit/util/progress/progressui"
"github.com/opencontainers/go-digest"
"github.com/sirupsen/logrus"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/metric"
)
type Printer struct {
status chan *client.SolveStatus
ready chan struct{}
done chan struct{}
paused chan struct{}
closeOnce sync.Once
err error
warnings []client.VertexWarning
logMu sync.Mutex
logSourceMap map[digest.Digest]interface{}
metrics *metricWriter
// TODO: remove once we can use result context to pass build ref
// see https://github.com/docker/buildx/pull/1861
buildRefsMu sync.Mutex
buildRefs map[string]string
}
func (p *Printer) Wait() error {
p.closeOnce.Do(func() {
close(p.status)
<-p.done
})
return p.err
}
func (p *Printer) IsDone() bool {
select {
case <-p.done:
return true
default:
return false
}
}
func (p *Printer) Pause() error {
p.paused = make(chan struct{})
return p.Wait()
}
func (p *Printer) Unpause() {
close(p.paused)
<-p.ready
}
func (p *Printer) Write(s *client.SolveStatus) {
p.status <- s
if p.metrics != nil {
p.metrics.Write(s)
}
}
func (p *Printer) Warnings() []client.VertexWarning {
return dedupWarnings(p.warnings)
}
func (p *Printer) ValidateLogSource(dgst digest.Digest, v interface{}) bool {
p.logMu.Lock()
defer p.logMu.Unlock()
src, ok := p.logSourceMap[dgst]
if ok {
if src == v {
return true
}
} else {
p.logSourceMap[dgst] = v
return true
}
return false
}
func (p *Printer) ClearLogSource(v interface{}) {
p.logMu.Lock()
defer p.logMu.Unlock()
for d := range p.logSourceMap {
if p.logSourceMap[d] == v {
delete(p.logSourceMap, d)
}
}
}
func NewPrinter(ctx context.Context, out console.File, mode progressui.DisplayMode, opts ...PrinterOpt) (*Printer, error) {
opt := &printerOpts{}
for _, o := range opts {
o(opt)
}
if v := os.Getenv("BUILDKIT_PROGRESS"); v != "" && mode == progressui.AutoMode {
mode = progressui.DisplayMode(v)
}
d, err := progressui.NewDisplay(out, mode, opt.displayOpts...)
if err != nil {
return nil, err
}
pw := &Printer{
ready: make(chan struct{}),
metrics: opt.mw,
}
go func() {
for {
pw.status = make(chan *client.SolveStatus)
pw.done = make(chan struct{})
pw.logMu.Lock()
pw.logSourceMap = map[digest.Digest]interface{}{}
pw.logMu.Unlock()
resumeLogs := logutil.Pause(logrus.StandardLogger())
close(pw.ready)
// not using shared context to not disrupt display but let is finish reporting errors
pw.warnings, pw.err = d.UpdateFrom(ctx, pw.status)
resumeLogs()
close(pw.done)
if opt.onclose != nil {
opt.onclose()
}
if pw.paused == nil {
break
}
pw.ready = make(chan struct{})
<-pw.paused
pw.paused = nil
d, _ = progressui.NewDisplay(out, mode, opt.displayOpts...)
}
}()
<-pw.ready
return pw, nil
}
func (p *Printer) WriteBuildRef(target string, ref string) {
p.buildRefsMu.Lock()
defer p.buildRefsMu.Unlock()
if p.buildRefs == nil {
p.buildRefs = map[string]string{}
}
p.buildRefs[target] = ref
}
func (p *Printer) BuildRefs() map[string]string {
return p.buildRefs
}
type printerOpts struct {
displayOpts []progressui.DisplayOpt
mw *metricWriter
onclose func()
}
type PrinterOpt func(b *printerOpts)
func WithPhase(phase string) PrinterOpt {
return func(opt *printerOpts) {
opt.displayOpts = append(opt.displayOpts, progressui.WithPhase(phase))
}
}
func WithDesc(text string, console string) PrinterOpt {
return func(opt *printerOpts) {
opt.displayOpts = append(opt.displayOpts, progressui.WithDesc(text, console))
}
}
func WithMetrics(mp metric.MeterProvider, attrs attribute.Set) PrinterOpt {
return func(opt *printerOpts) {
opt.mw = newMetrics(mp, attrs)
}
}
func WithOnClose(onclose func()) PrinterOpt {
return func(opt *printerOpts) {
opt.onclose = onclose
}
}
func dedupWarnings(inp []client.VertexWarning) []client.VertexWarning {
m := make(map[uint64]client.VertexWarning)
for _, w := range inp {
wcp := w
wcp.Vertex = ""
if wcp.SourceInfo != nil {
wcp.SourceInfo.Definition = nil
}
h, err := hashstructure.Hash(wcp, hashstructure.FormatV2, nil)
if err != nil {
continue
}
if _, ok := m[h]; !ok {
m[h] = w
}
}
res := make([]client.VertexWarning, 0, len(m))
for _, w := range m {
res = append(res, w)
}
return res
}
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