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templates.go
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templates.go
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// Copyright (C) 2014 Space Monkey, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package spacelog
import (
"text/template"
)
// ColorizeLevel returns a TermColor byte sequence for the appropriate color
// for the level. If you'd like to configure your own color choices, you can
// make your own template with its own function map to your own colorize
// function.
func ColorizeLevel(level LogLevel) string {
switch level.Match() {
case Critical, Error:
return TermColors{}.Red()
case Warning:
return TermColors{}.Magenta()
case Notice:
return TermColors{}.Yellow()
case Info, Debug:
return TermColors{}.Green()
}
return ""
}
var (
// ColorTemplate uses the default ColorizeLevel method for color choices.
ColorTemplate = template.Must(template.New("color").Funcs(template.FuncMap{
"ColorizeLevel": ColorizeLevel}).Parse(
`{{.Blue}}{{.Date}} {{.Time}}{{.Reset}} ` +
`{{.Bold}}{{ColorizeLevel .Level}}{{.LevelJustified}}{{.Reset}} ` +
`{{.Underline}}{{.LoggerName}}{{.Reset}} ` +
`{{if .Filename}}{{.Filename}}:{{.Line}} {{end}}- ` +
`{{ColorizeLevel .Level}}{{.Message}}{{.Reset}}`))
// StandardTemplate is like ColorTemplate with no color.
StandardTemplate = template.Must(template.New("standard").Parse(
`{{.Date}} {{.Time}} ` +
`{{.Level}} {{.LoggerName}} ` +
`{{if .Filename}}{{.Filename}}:{{.Line}} {{end}}` +
`- {{.Message}}`))
// SyslogTemplate is missing the date and time as syslog adds those
// things.
SyslogTemplate = template.Must(template.New("syslog").Parse(
`{{.Level}} {{.LoggerName}} ` +
`{{if .Filename}}{{.Filename}}:{{.Line}} {{end}}` +
`- {{.Message}}`))
// StdlibTemplate is missing the date and time as the stdlib logger often
// adds those things.
StdlibTemplate = template.Must(template.New("stdlib").Parse(
`{{.Level}} {{.LoggerName}} ` +
`{{if .Filename}}{{.Filename}}:{{.Line}} {{end}}` +
`- {{.Message}}`))
)