logh

README

Log Highlighter

This tool colorizes the output based on regular expressions, making it easier to follow logs at a glance.

Requirements

• go 1.16

Installing

git clone https://github.com/haroflow/logh
cd logh
go build cli/logh.go
# Copy logh to a folder in your PATH

Using

Pass data to logh via stdin. Pass regular expressions as arguments to highlight the text. Each argument will get a different color (up to 10 at the moment).

Examples:

# View help
logh

# Highlights "GET" with red, "POST" with green
tail -f /var/log/httpd/access.log | logh GET POST

# Highlights the whole line containing "word"
cat textfile.txt | logh '.*word.*'

# Ignore case. Matches get, GET, Get, etc.
cat textfile.txt | logh -i get

Documentation

Index

• Variables
• func Highlight(in io.Reader, out io.Writer, config HighlightConfig, expressions ...string) error
• type HighlightConfig

Variables

var Colors = []color.Attribute{
	color.FgRed,
	color.FgGreen,
	color.FgBlue,
	color.FgYellow,
	color.FgCyan,
	color.FgHiRed,
	color.FgHiGreen,
	color.FgHiBlue,
	color.FgHiYellow,
	color.FgHiCyan,
}

Functions

func Highlight

func Highlight(in io.Reader, out io.Writer, config HighlightConfig, expressions ...string) error

Types

type HighlightConfig

type HighlightConfig struct {
	IgnoreCase bool
}