From b7cca3fa832737c745d41ee7f1697fce88bde812 Mon Sep 17 00:00:00 2001
From: Dan Ballard <dan@mindstab.net>
Date: Mon, 12 Aug 2019 14:17:17 -0700
Subject: [PATCH] log now suports creating a logger around a file

---
 log/log.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/log/log.go b/log/log.go
index ddeb098..d22e55f 100644
--- a/log/log.go
+++ b/log/log.go
@@ -39,8 +39,23 @@ func New(level Level) *Logger {
 	return &Logger{logger: golog.New(os.Stderr, "", golog.Ldate|golog.Ltime), level: level, everythingFromPatterns: make([]string, 0), nothingExceptPatterns: make([]string, 0)}
 }
 
+// NewFile returns a new Logger that logs to the supplied file with a filter set to the supplied level
+func NewFile(level Level, filename string) (*Logger, error) {
+	logfile, err := os.OpenFile(filename, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0600)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Logger{logger: golog.New(logfile, "", golog.Ldate|golog.Ltime), level: level, everythingFromPatterns: make([]string, 0), nothingExceptPatterns: make([]string, 0)}, nil
+}
+
 var std = New(LevelWarn)
 
+// SetStd sets the default logger all other functions use
+func SetStd(logger *Logger) {
+	std = logger
+}
+
 // filter
 func (l *Logger) filter(level Level) bool {