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log/console.go
Andrew Thornton fc1de2249e
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Make console logger colorize if it can by default (#5)
2019-06-03 14:52:06 +00:00

89 lines
1.9 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package log
import (
"encoding/json"
"io"
"os"
)
// CanColorStdout reports if we can color the Stdout
// Although we could do terminal sniffing and the like - in reality
// most tools on *nix are happy to display ansi colors.
// We will terminal sniff on Windows in console_windows.go
var CanColorStdout = true
// CanColorStderr reports if we can color the Stderr
var CanColorStderr = true
type nopWriteCloser struct {
w io.WriteCloser
}
func (n *nopWriteCloser) Write(p []byte) (int, error) {
return n.w.Write(p)
}
func (n *nopWriteCloser) Close() error {
return nil
}
// ConsoleLogger implements LoggerProvider and writes messages to terminal.
type ConsoleLogger struct {
WriterLogger
Stderr bool `json:"stderr"`
}
// NewConsoleLogger create ConsoleLogger returning as LoggerProvider.
func NewConsoleLogger() LoggerProvider {
log := &ConsoleLogger{}
log.NewWriterLogger(&nopWriteCloser{
w: os.Stdout,
})
return log
}
// Init inits connection writer with json config.
// json config only need key "level".
func (log *ConsoleLogger) Init(config string) error {
err := json.Unmarshal([]byte(config), log)
if err != nil {
return err
}
configMap := map[string]interface{}{}
_ = json.Unmarshal([]byte(config), &configMap)
_, has := configMap["colorize"]
if log.Stderr {
if !has {
log.Colorize = CanColorStderr
}
log.NewWriterLogger(&nopWriteCloser{
w: os.Stderr,
})
} else {
if !has {
log.Colorize = CanColorStdout
}
log.NewWriterLogger(log.out)
}
return nil
}
// Flush when log should be flushed
func (log *ConsoleLogger) Flush() {
}
// GetName returns the default name for this implementation
func (log *ConsoleLogger) GetName() string {
return "console"
}
func init() {
Register("console", NewConsoleLogger)
}