package progressui import ( "bytes" "context" "fmt" "io" "os" "sort" "strconv" "strings" "time" "github.com/containerd/console" "github.com/jaguilar/vt100" "github.com/moby/buildkit/client" "github.com/morikuni/aec" digest "github.com/opencontainers/go-digest" "github.com/tonistiigi/units" "golang.org/x/time/rate" ) func DisplaySolveStatus(ctx context.Context, phase string, c console.Console, w io.Writer, ch chan *client.SolveStatus) error { modeConsole := c != nil disp := &display{c: c, phase: phase} printer := &textMux{w: w} if disp.phase == "" { disp.phase = "Building" } t := newTrace(w, modeConsole) tickerTimeout := 150 * time.Millisecond displayTimeout := 100 * time.Millisecond if v := os.Getenv("TTY_DISPLAY_RATE"); v != "" { if r, err := strconv.ParseInt(v, 10, 64); err == nil { tickerTimeout = time.Duration(r) * time.Millisecond displayTimeout = time.Duration(r) * time.Millisecond } } var done bool ticker := time.NewTicker(tickerTimeout) defer ticker.Stop() displayLimiter := rate.NewLimiter(rate.Every(displayTimeout), 1) var height int width, _ := disp.getSize() for { select { case <-ctx.Done(): return ctx.Err() case <-ticker.C: case ss, ok := <-ch: if ok { t.update(ss, width) } else { done = true } } if modeConsole { width, height = disp.getSize() if done { disp.print(t.displayInfo(), width, height, true) t.printErrorLogs(c) return nil } else if displayLimiter.Allow() { ticker.Stop() ticker = time.NewTicker(tickerTimeout) disp.print(t.displayInfo(), width, height, false) } } else { if done || displayLimiter.Allow() { printer.print(t) if done { t.printErrorLogs(w) return nil } ticker.Stop() ticker = time.NewTicker(tickerTimeout) } } } } const termHeight = 6 const termPad = 10 type displayInfo struct { startTime time.Time jobs []*job countTotal int countCompleted int } type job struct { startTime *time.Time completedTime *time.Time name string status string hasError bool isCanceled bool vertex *vertex showTerm bool } type trace struct { w io.Writer localTimeDiff time.Duration vertexes []*vertex byDigest map[digest.Digest]*vertex nextIndex int updates map[digest.Digest]struct{} modeConsole bool } type vertex struct { *client.Vertex statuses []*status byID map[string]*status indent string index int logs [][]byte logsPartial bool logsOffset int prev *client.Vertex events []string lastBlockTime *time.Time count int statusUpdates map[string]struct{} jobs []*job jobCached bool term *vt100.VT100 termBytes int termCount int } func (v *vertex) update(c int) { if v.count == 0 { now := time.Now() v.lastBlockTime = &now } v.count += c } type status struct { *client.VertexStatus } func newTrace(w io.Writer, modeConsole bool) *trace { return &trace{ byDigest: make(map[digest.Digest]*vertex), updates: make(map[digest.Digest]struct{}), w: w, modeConsole: modeConsole, } } func (t *trace) triggerVertexEvent(v *client.Vertex) { if v.Started == nil { return } var old client.Vertex vtx := t.byDigest[v.Digest] if v := vtx.prev; v != nil { old = *v } changed := false if v.Digest != old.Digest { changed = true } if v.Name != old.Name { changed = true } if v.Started != old.Started { if v.Started != nil && old.Started == nil || !v.Started.Equal(*old.Started) { changed = true } } if v.Completed != old.Completed && v.Completed != nil { changed = true } if v.Cached != old.Cached { changed = true } if v.Error != old.Error { changed = true } if changed { vtx.update(1) t.updates[v.Digest] = struct{}{} } t.byDigest[v.Digest].prev = v } func (t *trace) update(s *client.SolveStatus, termWidth int) { for _, v := range s.Vertexes { prev, ok := t.byDigest[v.Digest] if !ok { t.nextIndex++ t.byDigest[v.Digest] = &vertex{ byID: make(map[string]*status), statusUpdates: make(map[string]struct{}), index: t.nextIndex, } if t.modeConsole { t.byDigest[v.Digest].term = vt100.NewVT100(termHeight, termWidth-termPad) } } t.triggerVertexEvent(v) if v.Started != nil && (prev == nil || prev.Started == nil) { if t.localTimeDiff == 0 { t.localTimeDiff = time.Since(*v.Started) } t.vertexes = append(t.vertexes, t.byDigest[v.Digest]) } // allow a duplicate initial vertex that shouldn't reset state if !(prev != nil && prev.Started != nil && v.Started == nil) { t.byDigest[v.Digest].Vertex = v } t.byDigest[v.Digest].jobCached = false } for _, s := range s.Statuses { v, ok := t.byDigest[s.Vertex] if !ok { continue // shouldn't happen } v.jobCached = false prev, ok := v.byID[s.ID] if !ok { v.byID[s.ID] = &status{VertexStatus: s} } if s.Started != nil && (prev == nil || prev.Started == nil) { v.statuses = append(v.statuses, v.byID[s.ID]) } v.byID[s.ID].VertexStatus = s v.statusUpdates[s.ID] = struct{}{} t.updates[v.Digest] = struct{}{} v.update(1) } for _, l := range s.Logs { v, ok := t.byDigest[l.Vertex] if !ok { continue // shouldn't happen } v.jobCached = false if v.term != nil { if v.term.Width != termWidth { v.term.Resize(termHeight, termWidth-termPad) } v.termBytes += len(l.Data) v.term.Write(l.Data) // error unhandled on purpose. don't trust vt100 } i := 0 complete := split(l.Data, byte('\n'), func(dt []byte) { if v.logsPartial && len(v.logs) != 0 && i == 0 { v.logs[len(v.logs)-1] = append(v.logs[len(v.logs)-1], dt...) } else { ts := time.Duration(0) if v.Started != nil { ts = l.Timestamp.Sub(*v.Started) } v.logs = append(v.logs, []byte(fmt.Sprintf("#%d %s %s", v.index, fmt.Sprintf("%#.4g", ts.Seconds())[:5], dt))) } i++ }) v.logsPartial = !complete t.updates[v.Digest] = struct{}{} v.update(1) } } func (t *trace) printErrorLogs(f io.Writer) { for _, v := range t.vertexes { if v.Error != "" && !strings.HasSuffix(v.Error, context.Canceled.Error()) { fmt.Fprintln(f, "------") fmt.Fprintf(f, " > %s:\n", v.Name) for _, l := range v.logs { f.Write(l) fmt.Fprintln(f) } fmt.Fprintln(f, "------") } } } func (t *trace) displayInfo() (d displayInfo) { d.startTime = time.Now() if t.localTimeDiff != 0 { d.startTime = (*t.vertexes[0].Started).Add(t.localTimeDiff) } d.countTotal = len(t.byDigest) for _, v := range t.byDigest { if v.Completed != nil { d.countCompleted++ } } for _, v := range t.vertexes { if v.jobCached { d.jobs = append(d.jobs, v.jobs...) continue } var jobs []*job j := &job{ startTime: addTime(v.Started, t.localTimeDiff), completedTime: addTime(v.Completed, t.localTimeDiff), name: strings.Replace(v.Name, "\t", " ", -1), vertex: v, } if v.Error != "" { if strings.HasSuffix(v.Error, context.Canceled.Error()) { j.isCanceled = true j.name = "CANCELED " + j.name } else { j.hasError = true j.name = "ERROR " + j.name } } if v.Cached { j.name = "CACHED " + j.name } j.name = v.indent + j.name jobs = append(jobs, j) for _, s := range v.statuses { j := &job{ startTime: addTime(s.Started, t.localTimeDiff), completedTime: addTime(s.Completed, t.localTimeDiff), name: v.indent + "=> " + s.ID, } if s.Total != 0 { j.status = fmt.Sprintf("%.2f / %.2f", units.Bytes(s.Current), units.Bytes(s.Total)) } else if s.Current != 0 { j.status = fmt.Sprintf("%.2f", units.Bytes(s.Current)) } jobs = append(jobs, j) } d.jobs = append(d.jobs, jobs...) v.jobs = jobs v.jobCached = true } return d } func split(dt []byte, sep byte, fn func([]byte)) bool { if len(dt) == 0 { return false } for { if len(dt) == 0 { return true } idx := bytes.IndexByte(dt, sep) if idx == -1 { fn(dt) return false } fn(dt[:idx]) dt = dt[idx+1:] } } func addTime(tm *time.Time, d time.Duration) *time.Time { if tm == nil { return nil } t := (*tm).Add(d) return &t } type display struct { c console.Console phase string lineCount int repeated bool } func (disp *display) getSize() (int, int) { width := 80 height := 10 if disp.c != nil { size, err := disp.c.Size() if err == nil && size.Width > 0 && size.Height > 0 { width = int(size.Width) height = int(size.Height) } } return width, height } func setupTerminals(jobs []*job, height int, all bool) []*job { var candidates []*job numInUse := 0 for _, j := range jobs { if j.vertex != nil && j.vertex.termBytes > 0 && j.completedTime == nil { candidates = append(candidates, j) } if j.completedTime == nil { numInUse++ } } sort.Slice(candidates, func(i, j int) bool { idxI := candidates[i].vertex.termBytes + candidates[i].vertex.termCount*50 idxJ := candidates[j].vertex.termBytes + candidates[j].vertex.termCount*50 return idxI > idxJ }) numFree := height - 2 - numInUse numToHide := 0 termLimit := termHeight + 3 for i := 0; numFree > termLimit && i < len(candidates); i++ { candidates[i].showTerm = true numToHide += candidates[i].vertex.term.UsedHeight() numFree -= termLimit } if !all { jobs = wrapHeight(jobs, height-2-numToHide) } return jobs } func (disp *display) print(d displayInfo, width, height int, all bool) { // this output is inspired by Buck d.jobs = setupTerminals(d.jobs, height, all) b := aec.EmptyBuilder for i := 0; i <= disp.lineCount; i++ { b = b.Up(1) } if !disp.repeated { b = b.Down(1) } disp.repeated = true fmt.Fprint(disp.c, b.Column(0).ANSI) statusStr := "" if d.countCompleted > 0 && d.countCompleted == d.countTotal && all { statusStr = "FINISHED" } fmt.Fprint(disp.c, aec.Hide) defer fmt.Fprint(disp.c, aec.Show) out := fmt.Sprintf("[+] %s %.1fs (%d/%d) %s", disp.phase, time.Since(d.startTime).Seconds(), d.countCompleted, d.countTotal, statusStr) out = align(out, "", width) fmt.Fprintln(disp.c, out) lineCount := 0 for _, j := range d.jobs { endTime := time.Now() if j.completedTime != nil { endTime = *j.completedTime } if j.startTime == nil { continue } dt := endTime.Sub(*j.startTime).Seconds() if dt < 0.05 { dt = 0 } pfx := " => " timer := fmt.Sprintf(" %3.1fs\n", dt) status := j.status showStatus := false left := width - len(pfx) - len(timer) - 1 if status != "" { if left+len(status) > 20 { showStatus = true left -= len(status) + 1 } } if left < 12 { // too small screen to show progress continue } name := j.name if len(name) > left { name = name[:left] } out := pfx + name if showStatus { out += " " + status } out = align(out, timer, width) if j.completedTime != nil { color := aec.BlueF if j.isCanceled { color = aec.YellowF } else if j.hasError { color = aec.RedF } out = aec.Apply(out, color) } fmt.Fprint(disp.c, out) lineCount++ if j.showTerm { term := j.vertex.term term.Resize(termHeight, width-termPad) for _, l := range term.Content { if !isEmpty(l) { out := aec.Apply(fmt.Sprintf(" => => # %s\n", string(l)), aec.Faint) fmt.Fprint(disp.c, out) lineCount++ } } j.vertex.termCount++ j.showTerm = false } } // override previous content if diff := disp.lineCount - lineCount; diff > 0 { for i := 0; i < diff; i++ { fmt.Fprintln(disp.c, strings.Repeat(" ", width)) } fmt.Fprint(disp.c, aec.EmptyBuilder.Up(uint(diff)).Column(0).ANSI) } disp.lineCount = lineCount } func isEmpty(l []rune) bool { for _, r := range l { if r != ' ' { return false } } return true } func align(l, r string, w int) string { return fmt.Sprintf("%-[2]*[1]s %[3]s", l, w-len(r)-1, r) } func wrapHeight(j []*job, limit int) []*job { var wrapped []*job wrapped = append(wrapped, j...) if len(j) > limit { wrapped = wrapped[len(j)-limit:] // wrap things around if incomplete jobs were cut var invisible []*job for _, j := range j[:len(j)-limit] { if j.completedTime == nil { invisible = append(invisible, j) } } if l := len(invisible); l > 0 { rewrapped := make([]*job, 0, len(wrapped)) for _, j := range wrapped { if j.completedTime == nil || l <= 0 { rewrapped = append(rewrapped, j) } l-- } freespace := len(wrapped) - len(rewrapped) wrapped = append(invisible[len(invisible)-freespace:], rewrapped...) } } return wrapped }