Fixes hacks from progressreader refactor

related to #10959

Signed-off-by: bobby abbott <ttobbaybbob@gmail.com>

jsonmessage/jsonmessage.go

@@ -0,0 +1,172 @@
+package jsonmessage
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"strings"
+	"time"
+
+	"github.com/docker/docker/pkg/term"
+	"github.com/docker/docker/pkg/timeutils"
+	"github.com/docker/docker/pkg/units"
+)
+
+type JSONError struct {
+	Code    int    `json:"code,omitempty"`
+	Message string `json:"message,omitempty"`
+}
+
+func (e *JSONError) Error() string {
+	return e.Message
+}
+
+type JSONProgress struct {
+	terminalFd uintptr
+	Current    int   `json:"current,omitempty"`
+	Total      int   `json:"total,omitempty"`
+	Start      int64 `json:"start,omitempty"`
+}
+
+func (p *JSONProgress) String() string {
+	var (
+		width       = 200
+		pbBox       string
+		numbersBox  string
+		timeLeftBox string
+	)
+
+	ws, err := term.GetWinsize(p.terminalFd)
+	if err == nil {
+		width = int(ws.Width)
+	}
+
+	if p.Current <= 0 && p.Total <= 0 {
+		return ""
+	}
+	current := units.HumanSize(float64(p.Current))
+	if p.Total <= 0 {
+		return fmt.Sprintf("%8v", current)
+	}
+	total := units.HumanSize(float64(p.Total))
+	percentage := int(float64(p.Current)/float64(p.Total)*100) / 2
+	if percentage > 50 {
+		percentage = 50
+	}
+	if width > 110 {
+		// this number can't be negetive gh#7136
+		numSpaces := 0
+		if 50-percentage > 0 {
+			numSpaces = 50 - percentage
+		}
+		pbBox = fmt.Sprintf("[%s>%s] ", strings.Repeat("=", percentage), strings.Repeat(" ", numSpaces))
+	}
+	numbersBox = fmt.Sprintf("%8v/%v", current, total)
+
+	if p.Current > 0 && p.Start > 0 && percentage < 50 {
+		fromStart := time.Now().UTC().Sub(time.Unix(int64(p.Start), 0))
+		perEntry := fromStart / time.Duration(p.Current)
+		left := time.Duration(p.Total-p.Current) * perEntry
+		left = (left / time.Second) * time.Second
+
+		if width > 50 {
+			timeLeftBox = " " + left.String()
+		}
+	}
+	return pbBox + numbersBox + timeLeftBox
+}
+
+type JSONMessage struct {
+	Stream          string        `json:"stream,omitempty"`
+	Status          string        `json:"status,omitempty"`
+	Progress        *JSONProgress `json:"progressDetail,omitempty"`
+	ProgressMessage string        `json:"progress,omitempty"` //deprecated
+	ID              string        `json:"id,omitempty"`
+	From            string        `json:"from,omitempty"`
+	Time            int64         `json:"time,omitempty"`
+	Error           *JSONError    `json:"errorDetail,omitempty"`
+	ErrorMessage    string        `json:"error,omitempty"` //deprecated
+}
+
+func (jm *JSONMessage) Display(out io.Writer, isTerminal bool) error {
+	if jm.Error != nil {
+		if jm.Error.Code == 401 {
+			return fmt.Errorf("Authentication is required.")
+		}
+		return jm.Error
+	}
+	var endl string
+	if isTerminal && jm.Stream == "" && jm.Progress != nil {
+		// <ESC>[2K = erase entire current line
+		fmt.Fprintf(out, "%c[2K\r", 27)
+		endl = "\r"
+	} else if jm.Progress != nil && jm.Progress.String() != "" { //disable progressbar in non-terminal
+		return nil
+	}
+	if jm.Time != 0 {
+		fmt.Fprintf(out, "%s ", time.Unix(jm.Time, 0).Format(timeutils.RFC3339NanoFixed))
+	}
+	if jm.ID != "" {
+		fmt.Fprintf(out, "%s: ", jm.ID)
+	}
+	if jm.From != "" {
+		fmt.Fprintf(out, "(from %s) ", jm.From)
+	}
+	if jm.Progress != nil && isTerminal {
+		fmt.Fprintf(out, "%s %s%s", jm.Status, jm.Progress.String(), endl)
+	} else if jm.ProgressMessage != "" { //deprecated
+		fmt.Fprintf(out, "%s %s%s", jm.Status, jm.ProgressMessage, endl)
+	} else if jm.Stream != "" {
+		fmt.Fprintf(out, "%s%s", jm.Stream, endl)
+	} else {
+		fmt.Fprintf(out, "%s%s\n", jm.Status, endl)
+	}
+	return nil
+}
+
+func DisplayJSONMessagesStream(in io.Reader, out io.Writer, terminalFd uintptr, isTerminal bool) error {
+	var (
+		dec  = json.NewDecoder(in)
+		ids  = make(map[string]int)
+		diff = 0
+	)
+	for {
+		var jm JSONMessage
+		if err := dec.Decode(&jm); err != nil {
+			if err == io.EOF {
+				break
+			}
+			return err
+		}
+
+		if jm.Progress != nil {
+			jm.Progress.terminalFd = terminalFd
+		}
+		if jm.ID != "" && (jm.Progress != nil || jm.ProgressMessage != "") {
+			line, ok := ids[jm.ID]
+			if !ok {
+				line = len(ids)
+				ids[jm.ID] = line
+				if isTerminal {
+					fmt.Fprintf(out, "\n")
+				}
+				diff = 0
+			} else {
+				diff = len(ids) - line
+			}
+			if jm.ID != "" && isTerminal {
+				// <ESC>[{diff}A = move cursor up diff rows
+				fmt.Fprintf(out, "%c[%dA", 27, diff)
+			}
+		}
+		err := jm.Display(out, isTerminal)
+		if jm.ID != "" && isTerminal {
+			// <ESC>[{diff}B = move cursor down diff rows
+			fmt.Fprintf(out, "%c[%dB", 27, diff)
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}