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