Update vendor

vendor/github.com/jedib0t/go-pretty/text/transformer.go

@@ -0,0 +1,191 @@
+package text
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/go-openapi/strfmt"
+)
+
+// Transformer related constants
+const (
+	unixTimeMinMilliseconds = int64(10000000000)
+	unixTimeMinMicroseconds = unixTimeMinMilliseconds * 1000
+	unixTimeMinNanoSeconds  = unixTimeMinMicroseconds * 1000
+)
+
+// Transformer related variables
+var (
+	colorsNumberPositive = Colors{FgHiGreen}
+	colorsNumberNegative = Colors{FgHiRed}
+	colorsNumberZero     = Colors{}
+	colorsURL            = Colors{Underline, FgBlue}
+)
+
+// Transformer helps format the contents of an object to the user's liking.
+type Transformer func(val interface{}) string
+
+// NewNumberTransformer returns a number Transformer that:
+//   * transforms the number as directed by 'format' (ex.: %.2f)
+//   * colors negative values Red
+//   * colors positive values Green
+func NewNumberTransformer(format string) Transformer {
+	return func(val interface{}) string {
+		if number, ok := val.(int); ok {
+			return transformInt(format, int64(number))
+		}
+		if number, ok := val.(int8); ok {
+			return transformInt(format, int64(number))
+		}
+		if number, ok := val.(int16); ok {
+			return transformInt(format, int64(number))
+		}
+		if number, ok := val.(int32); ok {
+			return transformInt(format, int64(number))
+		}
+		if number, ok := val.(int64); ok {
+			return transformInt(format, int64(number))
+		}
+		if number, ok := val.(uint); ok {
+			return transformUint(format, uint64(number))
+		}
+		if number, ok := val.(uint8); ok {
+			return transformUint(format, uint64(number))
+		}
+		if number, ok := val.(uint16); ok {
+			return transformUint(format, uint64(number))
+		}
+		if number, ok := val.(uint32); ok {
+			return transformUint(format, uint64(number))
+		}
+		if number, ok := val.(uint64); ok {
+			return transformUint(format, uint64(number))
+		}
+		if number, ok := val.(float32); ok {
+			return transformFloat(format, float64(number))
+		}
+		if number, ok := val.(float64); ok {
+			return transformFloat(format, float64(number))
+		}
+		return fmt.Sprint(val)
+	}
+}
+
+func transformInt(format string, val int64) string {
+	if val < 0 {
+		return colorsNumberNegative.Sprintf("-"+format, -val)
+	}
+	if val > 0 {
+		return colorsNumberPositive.Sprintf(format, val)
+	}
+	return colorsNumberZero.Sprintf(format, val)
+}
+
+func transformUint(format string, val uint64) string {
+	if val > 0 {
+		return colorsNumberPositive.Sprintf(format, val)
+	}
+	return colorsNumberZero.Sprintf(format, val)
+}
+
+func transformFloat(format string, val float64) string {
+	if val < 0 {
+		return colorsNumberNegative.Sprintf("-"+format, -val)
+	}
+	if val > 0 {
+		return colorsNumberPositive.Sprintf(format, val)
+	}
+	return colorsNumberZero.Sprintf(format, val)
+}
+
+// NewJSONTransformer returns a Transformer that can format a JSON string or an
+// object into pretty-indented JSON-strings.
+func NewJSONTransformer(prefix string, indent string) Transformer {
+	return func(val interface{}) string {
+		if valStr, ok := val.(string); ok {
+			var b bytes.Buffer
+			if err := json.Indent(&b, []byte(strings.TrimSpace(valStr)), prefix, indent); err == nil {
+				return string(b.Bytes())
+			}
+		} else if b, err := json.MarshalIndent(val, prefix, indent); err == nil {
+			return string(b)
+		}
+		return fmt.Sprintf("%#v", val)
+	}
+}
+
+// NewTimeTransformer returns a Transformer that can format a timestamp (a
+// time.Time or strfmt.DateTime object) into a well-defined time format defined
+// using the provided layout (ex.: time.RFC3339).
+//
+// If a non-nil location value is provided, the time will be localized to that
+// location (use time.Local to get localized timestamps).
+func NewTimeTransformer(layout string, location *time.Location) Transformer {
+	return func(val interface{}) string {
+		formatTime := func(t time.Time) string {
+			rsp := ""
+			if t.Unix() > 0 {
+				if location != nil {
+					t = t.In(location)
+				}
+				rsp = t.Format(layout)
+			}
+			return rsp
+		}
+
+		rsp := fmt.Sprint(val)
+		if valDate, ok := val.(strfmt.DateTime); ok {
+			rsp = formatTime(time.Time(valDate))
+		} else if valTime, ok := val.(time.Time); ok {
+			rsp = formatTime(valTime)
+		} else if valStr, ok := val.(string); ok {
+			if valTime, err := time.Parse(time.RFC3339, valStr); err == nil {
+				rsp = formatTime(valTime)
+			}
+		}
+		return rsp
+	}
+}
+
+// NewUnixTimeTransformer returns a Transformer that can format a unix-timestamp
+// into a well-defined time format as defined by 'layout'. This can handle
+// unix-time in Seconds, MilliSeconds, Microseconds and Nanoseconds.
+//
+// If a non-nil location value is provided, the time will be localized to that
+// location (use time.Local to get localized timestamps).
+func NewUnixTimeTransformer(layout string, location *time.Location) Transformer {
+	timeTransformer := NewTimeTransformer(layout, location)
+	formatUnixTime := func(unixTime int64) string {
+		if unixTime >= unixTimeMinNanoSeconds {
+			unixTime = unixTime / time.Second.Nanoseconds()
+		} else if unixTime >= unixTimeMinMicroseconds {
+			unixTime = unixTime / (time.Second.Nanoseconds() / 1000)
+		} else if unixTime >= unixTimeMinMilliseconds {
+			unixTime = unixTime / (time.Second.Nanoseconds() / 1000000)
+		}
+		return timeTransformer(time.Unix(unixTime, 0))
+	}
+
+	return func(val interface{}) string {
+		if unixTime, ok := val.(int64); ok {
+			return formatUnixTime(unixTime)
+		} else if unixTimeStr, ok := val.(string); ok {
+			if unixTime, err := strconv.ParseInt(unixTimeStr, 10, 64); err == nil {
+				return formatUnixTime(unixTime)
+			}
+		}
+		return fmt.Sprint(val)
+	}
+}
+
+// NewURLTransformer returns a Transformer that can format and pretty print a string
+// that contains an URL (the text is underlined and colored Blue).
+func NewURLTransformer() Transformer {
+	return func(val interface{}) string {
+		return colorsURL.Sprint(val)
+	}
+}