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authorAndrew Gallant (Ocelot) <Andrew.Gallant@tufts.edu>2012-05-16 23:57:26 -0400
committerAndrew Gallant (Ocelot) <Andrew.Gallant@tufts.edu>2012-05-16 23:57:26 -0400
commitacb84171e55d46dc1a5b9cc10b2bff53c2d2846b (patch)
treea318f368d75796fd8d70208523663dcdcdf89b28 /nexgb/log.go
parent424f293671b256bb5e253eea1cbb83519f4243f3 (diff)
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Add new logger type so that it can be shut off.
Diffstat (limited to 'nexgb/log.go')
-rw-r--r--nexgb/log.go85
1 files changed, 85 insertions, 0 deletions
diff --git a/nexgb/log.go b/nexgb/log.go
new file mode 100644
index 0000000..eaaa57e
--- /dev/null
+++ b/nexgb/log.go
@@ -0,0 +1,85 @@
+package xgb
+
+import (
+ "log"
+ "os"
+)
+
+// Log controls whether XGB emits errors to stderr. By default, it is enabled.
+var PrintLog = true
+
+// log is a wrapper around a log.PrintLogger so we can control whether it should
+// output anything.
+type xgblog struct {
+ *log.Logger
+}
+
+func newLogger() xgblog {
+ return xgblog{log.New(os.Stderr, "XGB: ", log.Lshortfile)}
+}
+
+func (lg xgblog) Print(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Print(v...)
+ }
+}
+
+func (lg xgblog) Printf(format string, v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Printf(format, v...)
+ }
+}
+
+func (lg xgblog) Println(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Println(v...)
+ }
+}
+
+func (lg xgblog) Fatal(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Fatal(v...)
+ } else {
+ os.Exit(1)
+ }
+}
+
+func (lg xgblog) Fatalf(format string, v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Fatalf(format, v...)
+ } else {
+ os.Exit(1)
+ }
+}
+
+func (lg xgblog) Fatalln(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Fatalln(v...)
+ } else {
+ os.Exit(1)
+ }
+}
+
+func (lg xgblog) Panic(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Panic(v...)
+ } else {
+ panic("")
+ }
+}
+
+func (lg xgblog) Panicf(format string, v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Panicf(format, v...)
+ } else {
+ panic("")
+ }
+}
+
+func (lg xgblog) Panicln(v ...interface{}) {
+ if PrintLog {
+ lg.Logger.Panicln(v...)
+ } else {
+ panic("")
+ }
+}