func (h *LogrusHandler) joinKVs(skipUnchanged bool, sep string) []string {
kv := make([]string, 0, len(h.Fields))
for k, v := range h.Fields {
if !h.Opts.shouldShowKey(k) {
continue
}
if skipUnchanged {
if lastV, ok := h.last[k]; ok && lastV == v {
continue
}
}
kstr := rgbterm.FgString(k, h.Opts.KeyRGB.R, h.Opts.KeyRGB.G, h.Opts.KeyRGB.B)
var vstr string
if h.Opts.Truncates && len(v) > h.Opts.TruncateLength {
vstr = v[:h.Opts.TruncateLength] + "..."
} else {
vstr = v
}
vstr = rgbterm.FgString(vstr, h.Opts.ValRGB.R, h.Opts.ValRGB.G, h.Opts.ValRGB.B)
kv = append(kv, kstr+sep+vstr)
}
sort.Strings(kv)
if h.Opts.SortLongest {
sort.Stable(byLongest(kv))
}
return kv
}
func ColorString(color Color, str string) string {
logger.Logger.Println("BEFORE!!!", spew.Sdump(str))
c := rgbterm.FgString(str, color.R, color.G, color.B)
c = strings.Replace(c, "\x1b", "\033", -1)
tt := cc.New(cc.FgGreen).SprintFunc()
logger.Logger.Println("AFTER!!!", spew.Sdump(c), spew.Sdump(tt("TEST")))
return c
}
func main() {
app := newApp()
prefix := rgbterm.FgString(app.Name+"> ", 99, 99, 99)
log.SetFlags(0)
log.SetPrefix(prefix)
err := app.Run(os.Args)
if err != nil {
log.Fatal(err)
}
}
// Prettify the output in a logrus like fashion.
func (h *LogrusHandler) Prettify(skipUnchanged bool) []byte {
defer h.clear()
if h.out == nil {
if h.Opts == nil {
h.Opts = DefaultOptions
}
h.buf = bytes.NewBuffer(nil)
h.out = tabwriter.NewWriter(h.buf, 0, 1, 0, '\t', 0)
}
var msg string
if h.Message == "" {
msg = rgbterm.FgString("<no msg>", 190, 190, 190)
} else {
msg = rgbterm.FgString(h.Message, 255, 255, 255)
}
lvl := strings.ToUpper(h.Level)[:imin(4, len(h.Level))]
var level string
switch h.Level {
case "debug":
level = rgbterm.FgString(lvl, 221, 28, 119)
case "info":
level = rgbterm.FgString(lvl, 20, 172, 190)
case "warn", "warning":
level = rgbterm.FgString(lvl, 255, 245, 32)
case "error":
level = rgbterm.FgString(lvl, 255, 0, 0)
case "fatal", "panic":
level = rgbterm.BgString(lvl, 255, 0, 0)
default:
level = rgbterm.FgString(lvl, 221, 28, 119)
}
_, _ = fmt.Fprintf(h.out, "%s |%s| %s\t %s",
rgbterm.FgString(h.Time.Format(time.Stamp), 99, 99, 99),
level,
msg,
strings.Join(h.joinKVs(skipUnchanged, "="), "\t "),
)
_ = h.out.Flush()
return h.buf.Bytes()
}
func ColorStringF(color Color, format string, args ...interface{}) string {
return rgbterm.FgString(fmt.Sprintf(format, args), color.R, color.G, color.B)
}
func (ss *terminalSink) Error(message string) {
messageTime := time.Now().Format(time.RFC3339)
leveledMessage := fmt.Sprintf("[ERROR ] %s %s", messageTime, message)
colouredMessage := rgbterm.FgString(leveledMessage, 220, 50, 47)
fmt.Println(colouredMessage)
}
func (ss *terminalSink) Debug(message string) {
messageTime := time.Now().Format(time.RFC3339)
leveledMessage := fmt.Sprintf("[DEBUG ] %s %s", messageTime, message)
colouredMessage := rgbterm.FgString(leveledMessage, 42, 161, 152)
fmt.Println(colouredMessage)
}
func (ss *terminalSink) Warning(message string) {
messageTime := time.Now().Format(time.RFC3339)
leveledMessage := fmt.Sprintf("[WARNING] %s %s", messageTime, message)
colouredMessage := rgbterm.FgString(leveledMessage, 181, 137, 0)
fmt.Println(colouredMessage)
}
// Fprint is used by all of the logging functions to send output to the output
// stream.
//
// flags sets the output flags to use when writing the output.
//
// logLevel is the level of the output.
//
// calldepth is the number of stack frames to skip when getting the file
// name of original calling function for file name output.
//
// text is the string to append to the assembled log format output. If the text
// is prefixed with newlines, they will be stripped out and placed in front of
// the completed output (test with template applied) before writing it to the
// stream.
//
// stream will be used as the output stream the text will be written to. If
// stream is nil, the stream value contained in the logger object is used.
//
// Fprint returns the number of bytes written to the stream or an error.
func (l *Logger) Fprint(flags int, logLevel level, calldepth int,
text string, stream io.Writer) (n int, err error) {
if (logLevel != LEVEL_PRINT && l.level != LEVEL_PRINT) &&
logLevel < l.level {
return
}
// Check for string excludes
if len(l.excludeStrings) > 0 {
for _, val := range l.excludeStrings {
if strings.Contains(text, val) {
return
}
}
}
now := time.Now()
var pgmC uintptr
var file, fName string
var line int
var id string
var indentCount int
l.mu.Lock()
defer l.mu.Unlock()
if flags&(LlongFileName|LshortFileName|LfunctionName) != 0 ||
len(l.excludeFuncNames) > 0 {
// release lock while getting caller info - it's expensive.
// l.mu.Unlock()
pgmC, file, line, _ = runtime.Caller(calldepth)
if flags&LshortFileName != 0 {
short := file
for i := len(file) - 1; i > 0; i-- {
if file[i] == '/' {
short = file[i+1:]
break
}
}
file = short
}
if flags&LfunctionName != 0 || len(l.excludeFuncNames) > 0 {
fAtPC := runtime.FuncForPC(pgmC)
fName = fAtPC.Name()
for i := len(fName) - 1; i >= 0; i-- {
if fName[i] == '.' {
fName = fName[i+1:]
break
}
}
}
// l.mu.Lock()
}
// Check func name excludes and return if matches are found
if len(fName) > 0 {
for _, name := range l.excludeFuncNames {
if strings.Contains(fName, name) {
return
}
}
}
l.buf = l.buf[:0] // Reset!
trimText := strings.TrimLeft(text, "\t\v\r\n")
trimedCount := len(text) - len(trimText)
if trimedCount > 0 {
l.buf = append(l.buf, trimText...)
} else {
l.buf = append(l.buf, text...)
}
var date string
var seperator string
if flags&Ldate != 0 {
date = now.Format(l.dateFormat)
}
if flags&Lseperator != 0 {
seperator = l.seperator
}
if flags&LlineNumber == 0 {
line = 0
}
if flags&(LshortFileName|LlongFileName) == 0 {
file = ""
}
if flags&LfunctionName == 0 {
fName = ""
}
var indent string
if indentCount > 0 || flags&Lindent != 0 {
for i := 0; i < indentCount+l.indent; i++ {
for j := 0; j < l.tabStop; j++ {
if flags&LshowIndent != 0 && j == 0 {
indent += "|"
} else if flags&LshowIndent != 0 {
indent += "."
} else {
indent += " "
}
}
}
if len(indent) > 0 && string(indent[0]) != " " {
indent = rgbterm.FgString(indent, defaultIndentColor[0],
defaultIndentColor[1], defaultIndentColor[2])
}
}
var label string
if flags&Llabel != 0 {
if flags&Lcolor != 0 {
label = logLevel.AnsiLabel()
} else {
label = logLevel.Label()
}
}
f := &format{
Seperator: seperator,
LogLabel: label,
Date: date,
FileName: file,
FunctionName: fName,
LineNumber: line,
Indent: indent,
Id: id,
Text: string(l.buf),
}
var out bytes.Buffer
var strippedText, finalText string
err = l.template.Execute(&out, f)
if err != nil {
panic(err)
}
if flags&Lcolor == 0 {
strippedText = stripAnsi(out.String())
}
if trimedCount > 0 && flags&Lcolor == 0 {
finalText = text[:trimedCount] + strippedText
} else if trimedCount > 0 && flags&Lcolor != 0 {
finalText = text[:trimedCount] + out.String()
} else if flags&Lcolor == 0 {
finalText = strippedText
} else {
finalText = out.String()
}
if stream == nil {
n, err = l.Write([]byte(finalText))
} else {
n, err = stream.Write([]byte(finalText))
}
return
}
// Colorized returns the colorized label for console output using ANSI escape
// sequences.
func (l Label) Colorized() string {
if l.level == LEVEL_PRINT {
return l.name
}
return rgbterm.FgString(l.name, l.colorRGB[0], l.colorRGB[1], l.colorRGB[2])
}
// at all.
LEVEL_ERROR
// LEVEL_CRITICAL messages are used when something is completely broken
// and unrecoverable. Critical messages are usually followed by
// os.Exit().
LEVEL_CRITICAL
// LEVEL_PRINT shows output for the standard Print functions and above.
LEVEL_PRINT
)
var (
defaultDate = time.RFC3339
defaultSeperator = "::"
defaultSeperatorColor = rgbterm.FgString("::", 0, 255, 135) // Green
defaultIndentColor = []uint8{0, 135, 175} // Grayish blue
)
// Flags are used to control the formatting of the logging output.
const (
// These flags define which text to prefix to each log entry generated
// by the Logger. Bits or'ed together to control what's printed.
Ldate = 1 << iota
// Full file name and line number: /a/b/c/d.go:23
LlongFileName
// Base file name and line number: d.go:23. overrides LshortFileName
LshortFileName
var date = "Mon 20060102 15:04:05"
var fprintOutputTests = []struct {
template string
seperator string
level level
dateFormat string
flags int
text string
expect string
expectErr bool
}{
// Test with color seperator
{
template: logFmt,
seperator: rgbterm.FgString("TEST>", 0, 255, 0),
level: LEVEL_PRINT,
dateFormat: date,
flags: LstdFlags,
text: "test number 1",
// The %s format specifier is the placeholder for the date.
expect: "%s \x1b[38;5;46mTEST>\x1b[0;00m test number 1",
expectErr: false,
},
// Test output with coloring turned off
{
template: logFmt,
seperator: "TEST>",
level: LEVEL_PRINT,
dateFormat: date,
flags: Ldate | Lseperator,
// This code is MIT licensed. See the LICENSE file for more info.
package logs
import (
"fmt"
"testing"
"github.com/aybabtme/rgbterm"
)
var colorTests = []struct {
escapeCodes string
output string
}{
{rgbterm.FgString("red foreground color", 255, 0, 0),
"\x1b[38;5;196mred foreground color\x1b[0;00m"},
{rgbterm.FgString("green foreground color", 0, 255, 0),
"\x1b[38;5;46mgreen foreground color\x1b[0;00m"},
{rgbterm.FgString("blue foreground color", 0, 0, 255),
"\x1b[38;5;21mblue foreground color\x1b[0;00m"},
}
func TestColors(t *testing.T) {
for i, v := range colorTests {
if out := v.escapeCodes; out != v.output {
fmt.Println(v.escapeCodes)
t.Errorf("Test Number: %d\nGot:\t%q\nExpect:\t%q\n", i,
v.escapeCodes, v.output)
}
}