iostreams

package
v0.3.0-17-g4ff5271 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jan 19, 2023 License: BSD-3-Clause Imports: 21 Imported by: 3

Documentation

Overview

SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors. Licensed under the BSD-3-Clause License (the "License"). You may not use this file expect in compliance with the License.

Index

Constants

View Source 
const DefaultWidth = 80

Variables

View Source 
var (
	// G is an alias for FromContext.
	//
	// We may want to define this locally to a package to get package tagged
	// iostreams.
	G = FromContext

	// L is the system IO stream.
	IO = System()
)

Functions

func EnvColorDisabled 

func EnvColorDisabled() bool

func EnvColorForced 

func EnvColorForced() bool

func Is256ColorSupported 

func Is256ColorSupported() bool

func IsTrueColorSupported 

func IsTrueColorSupported() bool

func WithIOStreams added in v0.2.0 

func WithIOStreams(ctx context.Context, iostreams *IOStreams) context.Context

WithIOStreams returns a new context with the provided logger. Use in combination with logger.WithField(s) for great effect.

Types

type ColorScheme 

type ColorScheme struct {
	// contains filtered or unexported fields
}

func NewColorScheme 

func NewColorScheme(enabled, is256enabled bool, trueColor bool) *ColorScheme

func (*ColorScheme) Blue 

func (c *ColorScheme) Blue(t string) string

func (*ColorScheme) Bluef 

func (c *ColorScheme) Bluef(t string, args ...interface{}) string

func (*ColorScheme) Bold 

func (c *ColorScheme) Bold(t string) string

func (*ColorScheme) Boldf 

func (c *ColorScheme) Boldf(t string, args ...interface{}) string

func (*ColorScheme) ColorFromString 

func (c *ColorScheme) ColorFromString(s string) func(string) string

func (*ColorScheme) Cyan 

func (c *ColorScheme) Cyan(t string) string

func (*ColorScheme) CyanBold 

func (c *ColorScheme) CyanBold(t string) string

func (*ColorScheme) Cyanf 

func (c *ColorScheme) Cyanf(t string, args ...interface{}) string

func (*ColorScheme) FailureIcon 

func (c *ColorScheme) FailureIcon() string

func (*ColorScheme) FailureIconWithColor 

func (c *ColorScheme) FailureIconWithColor(colo func(string) string) string

func (*ColorScheme) Gray 

func (c *ColorScheme) Gray(t string) string

func (*ColorScheme) Grayf 

func (c *ColorScheme) Grayf(t string, args ...interface{}) string

func (*ColorScheme) Green 

func (c *ColorScheme) Green(t string) string

func (*ColorScheme) Greenf 

func (c *ColorScheme) Greenf(t string, args ...interface{}) string

func (*ColorScheme) HexToRGB 

func (c *ColorScheme) HexToRGB(hex string, x string) string

func (*ColorScheme) Magenta 

func (c *ColorScheme) Magenta(t string) string

func (*ColorScheme) Magentaf 

func (c *ColorScheme) Magentaf(t string, args ...interface{}) string

func (*ColorScheme) Red 

func (c *ColorScheme) Red(t string) string

func (*ColorScheme) Redf 

func (c *ColorScheme) Redf(t string, args ...interface{}) string

func (*ColorScheme) SprintFunc 

func (c *ColorScheme) SprintFunc(s string) func(a ...interface{}) string

SprintFunc returns a new function that returns colorized strings for the given arguments with fmt.Sprint(). Useful to put into or mix into other string. Windows users should use this in conjunction with color.Output, example: 

put := New(FgYellow).SprintFunc()
fmt.Fprintf(color.Output, "This is a %s", put("warning"))

func (*ColorScheme) SuccessIcon 

func (c *ColorScheme) SuccessIcon() string

func (*ColorScheme) SuccessIconWithColor 

func (c *ColorScheme) SuccessIconWithColor(colo func(string) string) string

func (*ColorScheme) WarningIcon 

func (c *ColorScheme) WarningIcon() string

func (*ColorScheme) Yellow 

func (c *ColorScheme) Yellow(t string) string

func (*ColorScheme) Yellowf 

func (c *ColorScheme) Yellowf(t string, args ...interface{}) string

type ErrClosedPagerPipe 

type ErrClosedPagerPipe struct {
	// contains filtered or unexported fields
}

ErrClosedPagerPipe is the error returned when writing to a pager that has been closed.

type IOStreams 

type IOStreams struct {
	In     io.ReadCloser
	Out    io.Writer
	ErrOut io.Writer

	TempFileOverride *os.File
	// contains filtered or unexported fields
}

func FromContext added in v0.2.0 

func FromContext(ctx context.Context) *IOStreams

FromContext returns the logger kraftkit in the context, or an inert logger that will not log anything.

func System 

func System() *IOStreams

func Test 

func Test() (*IOStreams, *bytes.Buffer, *bytes.Buffer, *bytes.Buffer)

func (*IOStreams) CanPrompt 

func (s *IOStreams) CanPrompt() bool

func (*IOStreams) ColorEnabled 

func (s *IOStreams) ColorEnabled() bool

func (*IOStreams) ColorScheme 

func (s *IOStreams) ColorScheme() *ColorScheme

func (*IOStreams) ColorSupport256 

func (s *IOStreams) ColorSupport256() bool

func (*IOStreams) DetectTerminalTheme 

func (s *IOStreams) DetectTerminalTheme()

DetectTerminalTheme is a utility to call before starting the output pager so that the terminal background can be reliably detected.

func (*IOStreams) EnableVirtualTerminalProcessing 

func (s *IOStreams) EnableVirtualTerminalProcessing() error

func (*IOStreams) ForceTerminal 

func (s *IOStreams) ForceTerminal(spec string)

func (*IOStreams) GetNeverPrompt 

func (s *IOStreams) GetNeverPrompt() bool

func (*IOStreams) GetPager 

func (s *IOStreams) GetPager() string

func (*IOStreams) HasTrueColor 

func (s *IOStreams) HasTrueColor() bool

func (*IOStreams) IsStderrTTY 

func (s *IOStreams) IsStderrTTY() bool

func (*IOStreams) IsStdinTTY 

func (s *IOStreams) IsStdinTTY() bool

func (*IOStreams) IsStdoutTTY 

func (s *IOStreams) IsStdoutTTY() bool

func (*IOStreams) ProcessTerminalWidth 

func (s *IOStreams) ProcessTerminalWidth() int

ProcessTerminalWidth returns the width of the terminal that the process is attached to.

func (*IOStreams) ReadUserFile 

func (s *IOStreams) ReadUserFile(fn string) ([]byte, error)

func (*IOStreams) SetColorEnabled 

func (s *IOStreams) SetColorEnabled(colorEnabled bool)

func (*IOStreams) SetNeverPrompt 

func (s *IOStreams) SetNeverPrompt(v bool)

func (*IOStreams) SetPager 

func (s *IOStreams) SetPager(cmd string)

func (*IOStreams) SetStderrTTY 

func (s *IOStreams) SetStderrTTY(isTTY bool)

func (*IOStreams) SetStdinTTY 

func (s *IOStreams) SetStdinTTY(isTTY bool)

func (*IOStreams) SetStdoutTTY 

func (s *IOStreams) SetStdoutTTY(isTTY bool)

func (*IOStreams) StartPager 

func (s *IOStreams) StartPager() error

func (*IOStreams) StartProgressIndicator 

func (s *IOStreams) StartProgressIndicator()

func (*IOStreams) StartProgressIndicatorWithLabel 

func (s *IOStreams) StartProgressIndicatorWithLabel(label string)

func (*IOStreams) StopPager 

func (s *IOStreams) StopPager()

func (*IOStreams) StopProgressIndicator 

func (s *IOStreams) StopProgressIndicator()

func (*IOStreams) TempFile 

func (s *IOStreams) TempFile(dir, pattern string) (*os.File, error)

func (*IOStreams) TerminalTheme 

func (s *IOStreams) TerminalTheme() string

TerminalTheme returns "light", "dark", or "none" depending on the background color of the terminal.

func (*IOStreams) TerminalWidth 

func (s *IOStreams) TerminalWidth() int

TerminalWidth returns the width of the terminal that stdout is attached to. TODO: investigate whether ProcessTerminalWidth could replace all this.

Source Files

View all Source files

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