Version 2.0.0
parent
22162048be
commit
b278688830
@ -0,0 +1,603 @@
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package starlog
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import (
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"fmt"
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"io"
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"os"
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"strconv"
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"strings"
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"sync"
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"github.com/mattn/go-colorable"
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"github.com/mattn/go-isatty"
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)
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var (
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// NoColor defines if the output is colorized or not. It's dynamically set to
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// false or true based on the stdout's file descriptor referring to a terminal
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// or not. This is a global option and affects all colors. For more control
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// over each color block use the methods DisableColor() individually.
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NoColor = os.Getenv("TERM") == "dumb" ||
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(!isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd()))
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// Output defines the standard output of the print functions. By default
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// os.Stdout is used.
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Output = colorable.NewColorableStdout()
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// Error defines a color supporting writer for os.Stderr.
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Errors = colorable.NewColorableStderr()
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// colorsCache is used to reduce the count of created Color objects and
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// allows to reuse already created objects with required Attr.
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colorsCache = make(map[Attr]*Color)
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colorsCacheMu sync.Mutex // protects colorsCache
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)
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// Color defines a custom color object which is defined by SGR parameters.
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type Color struct {
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params []Attr
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noColor *bool
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}
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// Attr defines a single SGR Code
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type Attr int
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const escape = "\x1b"
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// Base attributes
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const (
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Reset Attr = iota
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Bold
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Faint
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Italic
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Underline
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BlinkSlow
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BlinkRapid
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ReverseVideo
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Concealed
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CrossedOut
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)
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// Foreground text colors
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const (
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FgBlack Attr = iota + 30
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FgRed
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FgGreen
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FgYellow
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FgBlue
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FgMagenta
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FgCyan
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FgWhite
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)
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// Foreground Hi-Intensity text colors
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const (
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FgHiBlack Attr = iota + 90
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FgHiRed
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FgHiGreen
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FgHiYellow
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FgHiBlue
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FgHiMagenta
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FgHiCyan
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FgHiWhite
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)
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// Background text colors
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const (
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BgBlack Attr = iota + 40
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BgRed
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BgGreen
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BgYellow
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BgBlue
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BgMagenta
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BgCyan
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BgWhite
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)
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// Background Hi-Intensity text colors
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const (
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BgHiBlack Attr = iota + 100
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BgHiRed
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BgHiGreen
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BgHiYellow
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BgHiBlue
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BgHiMagenta
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BgHiCyan
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BgHiWhite
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)
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// New returns a newly created color object.
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func NewColor(value ...Attr) *Color {
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c := &Color{params: make([]Attr, 0)}
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c.Add(value...)
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return c
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}
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// Set sets the given parameters immediately. It will change the color of
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// output with the given SGR parameters until color.Unset() is called.
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func Set(p ...Attr) *Color {
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c := NewColor(p...)
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c.Set()
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return c
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}
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// Unset resets all escape attributes and clears the output. Usually should
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// be called after Set().
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func Unset() {
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if NoColor {
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return
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}
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fmt.Fprintf(Output, "%s[%dm", escape, Reset)
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}
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// Set sets the SGR sequence.
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func (c *Color) Set() *Color {
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if c.isNoColorSet() {
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return c
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}
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fmt.Fprintf(Output, c.format())
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return c
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}
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func (c *Color) unset() {
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if c.isNoColorSet() {
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return
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}
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Unset()
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}
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func (c *Color) setWriter(w io.Writer) *Color {
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if c.isNoColorSet() {
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return c
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}
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fmt.Fprintf(w, c.format())
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return c
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}
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func (c *Color) unsetWriter(w io.Writer) {
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if c.isNoColorSet() {
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return
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}
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if NoColor {
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return
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}
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fmt.Fprintf(w, "%s[%dm", escape, Reset)
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}
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// Add is used to chain SGR parameters. Use as many as parameters to combine
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// and create custom color objects. Example: Add(color.FgRed, color.Underline).
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func (c *Color) Add(value ...Attr) *Color {
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c.params = append(c.params, value...)
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return c
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}
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func (c *Color) prepend(value Attr) {
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c.params = append(c.params, 0)
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copy(c.params[1:], c.params[0:])
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c.params[0] = value
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}
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// Fprint formats using the default formats for its operands and writes to w.
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// Spaces are added between operands when neither is a string.
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// It returns the number of bytes written and any write error encountered.
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// On Windows, users should wrap w with colorable.NewColorable() if w is of
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// type *os.File.
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func (c *Color) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
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c.setWriter(w)
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defer c.unsetWriter(w)
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return fmt.Fprint(w, a...)
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}
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// Print formats using the default formats for its operands and writes to
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// standard output. Spaces are added between operands when neither is a
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// string. It returns the number of bytes written and any write error
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// encountered. This is the standard fmt.Print() method wrapped with the given
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// color.
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func (c *Color) Print(a ...interface{}) (n int, err error) {
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c.Set()
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defer c.unset()
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return fmt.Fprint(Output, a...)
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}
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// Fprintf formats according to a format specifier and writes to w.
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// It returns the number of bytes written and any write error encountered.
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// On Windows, users should wrap w with colorable.NewColorable() if w is of
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// type *os.File.
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func (c *Color) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
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c.setWriter(w)
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defer c.unsetWriter(w)
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return fmt.Fprintf(w, format, a...)
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}
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// Printf formats according to a format specifier and writes to standard output.
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// It returns the number of bytes written and any write error encountered.
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// This is the standard fmt.Printf() method wrapped with the given color.
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func (c *Color) Printf(format string, a ...interface{}) (n int, err error) {
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c.Set()
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defer c.unset()
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return fmt.Fprintf(Output, format, a...)
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}
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// Fprintln formats using the default formats for its operands and writes to w.
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// Spaces are always added between operands and a newline is appended.
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// On Windows, users should wrap w with colorable.NewColorable() if w is of
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// type *os.File.
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func (c *Color) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
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c.setWriter(w)
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defer c.unsetWriter(w)
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return fmt.Fprintln(w, a...)
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}
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// Println formats using the default formats for its operands and writes to
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// standard output. Spaces are always added between operands and a newline is
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// appended. It returns the number of bytes written and any write error
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// encountered. This is the standard fmt.Print() method wrapped with the given
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// color.
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func (c *Color) Println(a ...interface{}) (n int, err error) {
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c.Set()
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defer c.unset()
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return fmt.Fprintln(Output, a...)
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}
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// Sprint is just like Print, but returns a string instead of printing it.
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func (c *Color) Sprint(a ...interface{}) string {
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return c.wrap(fmt.Sprint(a...))
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}
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// Sprintln is just like Println, but returns a string instead of printing it.
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func (c *Color) Sprintln(a ...interface{}) string {
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return c.wrap(fmt.Sprintln(a...))
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}
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// Sprintf is just like Printf, but returns a string instead of printing it.
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func (c *Color) Sprintf(format string, a ...interface{}) string {
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return c.wrap(fmt.Sprintf(format, a...))
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}
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// FprintFunc returns a new function that prints the passed arguments as
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// colorized with color.Fprint().
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func (c *Color) FprintFunc() func(w io.Writer, a ...interface{}) {
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return func(w io.Writer, a ...interface{}) {
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c.Fprint(w, a...)
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}
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}
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// PrintFunc returns a new function that prints the passed arguments as
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// colorized with color.Print().
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func (c *Color) PrintFunc() func(a ...interface{}) {
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return func(a ...interface{}) {
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c.Print(a...)
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}
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}
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// FprintfFunc returns a new function that prints the passed arguments as
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// colorized with color.Fprintf().
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func (c *Color) FprintfFunc() func(w io.Writer, format string, a ...interface{}) {
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return func(w io.Writer, format string, a ...interface{}) {
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c.Fprintf(w, format, a...)
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}
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}
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// PrintfFunc returns a new function that prints the passed arguments as
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// colorized with color.Printf().
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func (c *Color) PrintfFunc() func(format string, a ...interface{}) {
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return func(format string, a ...interface{}) {
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c.Printf(format, a...)
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}
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}
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// FprintlnFunc returns a new function that prints the passed arguments as
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// colorized with color.Fprintln().
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func (c *Color) FprintlnFunc() func(w io.Writer, a ...interface{}) {
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return func(w io.Writer, a ...interface{}) {
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c.Fprintln(w, a...)
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}
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}
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// PrintlnFunc returns a new function that prints the passed arguments as
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// colorized with color.Println().
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func (c *Color) PrintlnFunc() func(a ...interface{}) {
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return func(a ...interface{}) {
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c.Println(a...)
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}
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}
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// SprintFunc returns a new function that returns colorized strings for the
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// given arguments with fmt.Sprint(). Useful to put into or mix into other
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// string. Windows users should use this in conjunction with color.Output, example:
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//
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// put := New(FgYellow).SprintFunc()
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// fmt.Fprintf(color.Output, "This is a %s", put("warning"))
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func (c *Color) SprintFunc() func(a ...interface{}) string {
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return func(a ...interface{}) string {
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return c.wrap(fmt.Sprint(a...))
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}
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}
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// SprintfFunc returns a new function that returns colorized strings for the
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// given arguments with fmt.Sprintf(). Useful to put into or mix into other
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// string. Windows users should use this in conjunction with color.Output.
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func (c *Color) SprintfFunc() func(format string, a ...interface{}) string {
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return func(format string, a ...interface{}) string {
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return c.wrap(fmt.Sprintf(format, a...))
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}
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}
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// SprintlnFunc returns a new function that returns colorized strings for the
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// given arguments with fmt.Sprintln(). Useful to put into or mix into other
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// string. Windows users should use this in conjunction with color.Output.
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func (c *Color) SprintlnFunc() func(a ...interface{}) string {
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return func(a ...interface{}) string {
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return c.wrap(fmt.Sprintln(a...))
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}
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}
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// sequence returns a formatted SGR sequence to be plugged into a "\x1b[...m"
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// an example output might be: "1;36" -> bold cyan
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func (c *Color) sequence() string {
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format := make([]string, len(c.params))
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for i, v := range c.params {
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format[i] = strconv.Itoa(int(v))
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}
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return strings.Join(format, ";")
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}
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// wrap wraps the s string with the colors attributes. The string is ready to
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// be printed.
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func (c *Color) wrap(s string) string {
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if c.isNoColorSet() {
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return s
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}
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return c.format() + s + c.unformat()
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}
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func (c *Color) format() string {
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return fmt.Sprintf("%s[%sm", escape, c.sequence())
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}
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func (c *Color) unformat() string {
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return fmt.Sprintf("%s[%dm", escape, Reset)
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}
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// DisableColor disables the color output. Useful to not change any existing
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// code and still being able to output. Can be used for flags like
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// "--no-color". To enable back use EnableColor() method.
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func (c *Color) DisableColor() {
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c.noColor = boolPtr(true)
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}
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// EnableColor enables the color output. Use it in conjunction with
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// DisableColor(). Otherwise this method has no side effects.
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func (c *Color) EnableColor() {
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c.noColor = boolPtr(false)
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}
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func (c *Color) isNoColorSet() bool {
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// check first if we have user setted action
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if c.noColor != nil {
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return *c.noColor
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}
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// if not return the global option, which is disabled by default
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return NoColor
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}
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// Equals returns a boolean value indicating whether two colors are equal.
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func (c *Color) Equals(c2 *Color) bool {
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if len(c.params) != len(c2.params) {
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return false
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}
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for _, attr := range c.params {
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if !c2.attrExists(attr) {
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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 (c *Color) attrExists(a Attr) bool {
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for _, attr := range c.params {
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if attr == a {
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return true
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}
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}
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return false
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}
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func boolPtr(v bool) *bool {
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return &v
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}
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func getCachedColor(p Attr) *Color {
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colorsCacheMu.Lock()
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defer colorsCacheMu.Unlock()
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c, ok := colorsCache[p]
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if !ok {
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c = NewColor(p)
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colorsCache[p] = c
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}
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return c
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}
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func colorPrint(format string, p Attr, a ...interface{}) {
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c := getCachedColor(p)
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if !strings.HasSuffix(format, "\n") {
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format += "\n"
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}
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if len(a) == 0 {
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c.Print(format)
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} else {
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c.Printf(format, a...)
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}
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}
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func colorString(format string, p Attr, a ...interface{}) string {
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c := getCachedColor(p)
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if len(a) == 0 {
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return c.SprintFunc()(format)
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}
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return c.SprintfFunc()(format, a...)
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}
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// Black is a convenient helper function to print with black foreground. A
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// newline is appended to format by default.
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func Black(format string, a ...interface{}) { colorPrint(format, FgBlack, a...) }
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// Red is a convenient helper function to print with red foreground. A
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// newline is appended to format by default.
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func Red(format string, a ...interface{}) { colorPrint(format, FgRed, a...) }
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// Green is a convenient helper function to print with green foreground. A
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// newline is appended to format by default.
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func Green(format string, a ...interface{}) { colorPrint(format, FgGreen, a...) }
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// Yellow is a convenient helper function to print with yellow foreground.
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// A newline is appended to format by default.
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func Yellow(format string, a ...interface{}) { colorPrint(format, FgYellow, a...) }
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// Blue is a convenient helper function to print with blue foreground. A
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// newline is appended to format by default.
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func Blue(format string, a ...interface{}) { colorPrint(format, FgBlue, a...) }
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// Magenta is a convenient helper function to print with magenta foreground.
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// A newline is appended to format by default.
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func Magenta(format string, a ...interface{}) { colorPrint(format, FgMagenta, a...) }
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// Cyan is a convenient helper function to print with cyan foreground. A
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// newline is appended to format by default.
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func Cyan(format string, a ...interface{}) { colorPrint(format, FgCyan, a...) }
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// White is a convenient helper function to print with white foreground. A
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// newline is appended to format by default.
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func White(format string, a ...interface{}) { colorPrint(format, FgWhite, a...) }
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// BlackString is a convenient helper function to return a string with black
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// foreground.
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func BlackString(format string, a ...interface{}) string { return colorString(format, FgBlack, a...) }
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// RedString is a convenient helper function to return a string with red
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// foreground.
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func RedString(format string, a ...interface{}) string { return colorString(format, FgRed, a...) }
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// GreenString is a convenient helper function to return a string with green
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// foreground.
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func GreenString(format string, a ...interface{}) string { return colorString(format, FgGreen, a...) }
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// YellowString is a convenient helper function to return a string with yellow
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// foreground.
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func YellowString(format string, a ...interface{}) string { return colorString(format, FgYellow, a...) }
|
||||
|
||||
// BlueString is a convenient helper function to return a string with blue
|
||||
// foreground.
|
||||
func BlueString(format string, a ...interface{}) string { return colorString(format, FgBlue, a...) }
|
||||
|
||||
// MagentaString is a convenient helper function to return a string with magenta
|
||||
// foreground.
|
||||
func MagentaString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgMagenta, a...)
|
||||
}
|
||||
|
||||
// CyanString is a convenient helper function to return a string with cyan
|
||||
// foreground.
|
||||
func CyanString(format string, a ...interface{}) string { return colorString(format, FgCyan, a...) }
|
||||
|
||||
// WhiteString is a convenient helper function to return a string with white
|
||||
// foreground.
|
||||
func WhiteString(format string, a ...interface{}) string { return colorString(format, FgWhite, a...) }
|
||||
|
||||
// HiBlack is a convenient helper function to print with hi-intensity black foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiBlack(format string, a ...interface{}) { colorPrint(format, FgHiBlack, a...) }
|
||||
|
||||
// HiRed is a convenient helper function to print with hi-intensity red foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiRed(format string, a ...interface{}) { colorPrint(format, FgHiRed, a...) }
|
||||
|
||||
// HiGreen is a convenient helper function to print with hi-intensity green foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiGreen(format string, a ...interface{}) { colorPrint(format, FgHiGreen, a...) }
|
||||
|
||||
// HiYellow is a convenient helper function to print with hi-intensity yellow foreground.
|
||||
// A newline is appended to format by default.
|
||||
func HiYellow(format string, a ...interface{}) { colorPrint(format, FgHiYellow, a...) }
|
||||
|
||||
// HiBlue is a convenient helper function to print with hi-intensity blue foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiBlue(format string, a ...interface{}) { colorPrint(format, FgHiBlue, a...) }
|
||||
|
||||
// HiMagenta is a convenient helper function to print with hi-intensity magenta foreground.
|
||||
// A newline is appended to format by default.
|
||||
func HiMagenta(format string, a ...interface{}) { colorPrint(format, FgHiMagenta, a...) }
|
||||
|
||||
// HiCyan is a convenient helper function to print with hi-intensity cyan foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiCyan(format string, a ...interface{}) { colorPrint(format, FgHiCyan, a...) }
|
||||
|
||||
// HiWhite is a convenient helper function to print with hi-intensity white foreground. A
|
||||
// newline is appended to format by default.
|
||||
func HiWhite(format string, a ...interface{}) { colorPrint(format, FgHiWhite, a...) }
|
||||
|
||||
// HiBlackString is a convenient helper function to return a string with hi-intensity black
|
||||
// foreground.
|
||||
func HiBlackString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiBlack, a...)
|
||||
}
|
||||
|
||||
// HiRedString is a convenient helper function to return a string with hi-intensity red
|
||||
// foreground.
|
||||
func HiRedString(format string, a ...interface{}) string { return colorString(format, FgHiRed, a...) }
|
||||
|
||||
// HiGreenString is a convenient helper function to return a string with hi-intensity green
|
||||
// foreground.
|
||||
func HiGreenString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiGreen, a...)
|
||||
}
|
||||
|
||||
// HiYellowString is a convenient helper function to return a string with hi-intensity yellow
|
||||
// foreground.
|
||||
func HiYellowString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiYellow, a...)
|
||||
}
|
||||
|
||||
// HiBlueString is a convenient helper function to return a string with hi-intensity blue
|
||||
// foreground.
|
||||
func HiBlueString(format string, a ...interface{}) string { return colorString(format, FgHiBlue, a...) }
|
||||
|
||||
// HiMagentaString is a convenient helper function to return a string with hi-intensity magenta
|
||||
// foreground.
|
||||
func HiMagentaString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiMagenta, a...)
|
||||
}
|
||||
|
||||
// HiCyanString is a convenient helper function to return a string with hi-intensity cyan
|
||||
// foreground.
|
||||
func HiCyanString(format string, a ...interface{}) string { return colorString(format, FgHiCyan, a...) }
|
||||
|
||||
// HiWhiteString is a convenient helper function to return a string with hi-intensity white
|
||||
// foreground.
|
||||
func HiWhiteString(format string, a ...interface{}) string {
|
||||
return colorString(format, FgHiWhite, a...)
|
||||
}
|
||||
@ -1,18 +1,9 @@
|
||||
package starlog
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func Test_LOG(t *testing.T) {
|
||||
SetLogFile("./okk.log")
|
||||
Debugln("这是一个Debug事项")
|
||||
Infoln("这是一个通知")
|
||||
err := errors.New("NBM")
|
||||
Errorln("你牛逼", err)
|
||||
LogLevel = 1
|
||||
Debugln("你看不到我了！")
|
||||
Panicln("我要下线了")
|
||||
CloseLog()
|
||||
|
||||
}
|
||||
|
||||
@ -0,0 +1,9 @@
|
||||
language: go
|
||||
go:
|
||||
- tip
|
||||
|
||||
before_install:
|
||||
- go get github.com/mattn/goveralls
|
||||
- go get golang.org/x/tools/cmd/cover
|
||||
script:
|
||||
- $HOME/gopath/bin/goveralls -repotoken xnXqRGwgW3SXIguzxf90ZSK1GPYZPaGrw
|
||||
@ -0,0 +1,21 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2016 Yasuhiro Matsumoto
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@ -0,0 +1,48 @@
|
||||
# go-colorable
|
||||
|
||||
[](http://godoc.org/github.com/mattn/go-colorable)
|
||||
[](https://travis-ci.org/mattn/go-colorable)
|
||||
[](https://coveralls.io/github/mattn/go-colorable?branch=master)
|
||||
[](https://goreportcard.com/report/mattn/go-colorable)
|
||||
|
||||
Colorable writer for windows.
|
||||
|
||||
For example, most of logger packages doesn't show colors on windows. (I know we can do it with ansicon. But I don't want.)
|
||||
This package is possible to handle escape sequence for ansi color on windows.
|
||||
|
||||
## Too Bad!
|
||||
|
||||
|
||||
|
||||
|
||||
## So Good!
|
||||
|
||||
|
||||
|
||||
## Usage
|
||||
|
||||
```go
|
||||
logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
|
||||
logrus.SetOutput(colorable.NewColorableStdout())
|
||||
|
||||
logrus.Info("succeeded")
|
||||
logrus.Warn("not correct")
|
||||
logrus.Error("something error")
|
||||
logrus.Fatal("panic")
|
||||
```
|
||||
|
||||
You can compile above code on non-windows OSs.
|
||||
|
||||
## Installation
|
||||
|
||||
```
|
||||
$ go get github.com/mattn/go-colorable
|
||||
```
|
||||
|
||||
# License
|
||||
|
||||
MIT
|
||||
|
||||
# Author
|
||||
|
||||
Yasuhiro Matsumoto (a.k.a mattn)
|
||||
@ -0,0 +1,16 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"fmt"
|
||||
|
||||
"github.com/mattn/go-colorable"
|
||||
)
|
||||
|
||||
func main() {
|
||||
stdOut := bufio.NewWriter(colorable.NewColorableStdout())
|
||||
|
||||
fmt.Fprint(stdOut, "\x1B[3GMove to 3rd Column\n")
|
||||
fmt.Fprint(stdOut, "\x1B[1;2HMove to 2nd Column on 1st Line\n")
|
||||
stdOut.Flush()
|
||||
}
|
||||
@ -0,0 +1,16 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"github.com/mattn/go-colorable"
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func main() {
|
||||
logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
|
||||
logrus.SetOutput(colorable.NewColorableStdout())
|
||||
|
||||
logrus.Info("succeeded")
|
||||
logrus.Warn("not correct")
|
||||
logrus.Error("something error")
|
||||
logrus.Fatal("panic")
|
||||
}
|
||||
@ -0,0 +1,14 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
. "github.com/mattn/go-colorable"
|
||||
)
|
||||
|
||||
func main() {
|
||||
out := NewColorableStdout()
|
||||
fmt.Fprint(out, "\x1B]0;TITLE Changed\007(See title and hit any key)")
|
||||
var c [1]byte
|
||||
os.Stdin.Read(c[:])
|
||||
}
|
||||
@ -0,0 +1,29 @@
|
||||
// +build appengine
|
||||
|
||||
package colorable
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
|
||||
_ "github.com/mattn/go-isatty"
|
||||
)
|
||||
|
||||
// NewColorable return new instance of Writer which handle escape sequence.
|
||||
func NewColorable(file *os.File) io.Writer {
|
||||
if file == nil {
|
||||
panic("nil passed instead of *os.File to NewColorable()")
|
||||
}
|
||||
|
||||
return file
|
||||
}
|
||||
|
||||
// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
|
||||
func NewColorableStdout() io.Writer {
|
||||
return os.Stdout
|
||||
}
|
||||
|
||||
// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
|
||||
func NewColorableStderr() io.Writer {
|
||||
return os.Stderr
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
// +build !windows
|
||||
// +build !appengine
|
||||
|
||||
package colorable
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
|
||||
_ "github.com/mattn/go-isatty"
|
||||
)
|
||||
|
||||
// NewColorable return new instance of Writer which handle escape sequence.
|
||||
func NewColorable(file *os.File) io.Writer {
|
||||
if file == nil {
|
||||
panic("nil passed instead of *os.File to NewColorable()")
|
||||
}
|
||||
|
||||
return file
|
||||
}
|
||||
|
||||
// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
|
||||
func NewColorableStdout() io.Writer {
|
||||
return os.Stdout
|
||||
}
|
||||
|
||||
// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
|
||||
func NewColorableStderr() io.Writer {
|
||||
return os.Stderr
|
||||
}
|
||||
@ -0,0 +1,83 @@
|
||||
package colorable
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"os"
|
||||
"runtime"
|
||||
"testing"
|
||||
)
|
||||
|
||||
// checkEncoding checks that colorable is output encoding agnostic as long as
|
||||
// the encoding is a superset of ASCII. This implies that one byte not part of
|
||||
// an ANSI sequence must give exactly one byte in output
|
||||
func checkEncoding(t *testing.T, data []byte) {
|
||||
// Send non-UTF8 data to colorable
|
||||
b := bytes.NewBuffer(make([]byte, 0, 10))
|
||||
if b.Len() != 0 {
|
||||
t.FailNow()
|
||||
}
|
||||
// TODO move colorable wrapping outside the test
|
||||
c := NewNonColorable(b)
|
||||
c.Write(data)
|
||||
if b.Len() | ||||