First working version

[safcm/safcm.git] / cmd / safcm-remote / log / logger.go

diff --git a/cmd/safcm-remote/log/logger.go b/cmd/safcm-remote/log/logger.go
new file mode 100644 (file)
index 0000000..159e097
--- /dev/null
+++ b/cmd/safcm-remote/log/logger.go
@@ -0,0 +1,60 @@
+// Logging helpers
+
+// Copyright (C) 2021  Simon Ruderich
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package log
+
+import (
+       "fmt"
+
+       "ruderich.org/simon/safcm"
+)
+
+// LogFunc is a helper type to reduce typing.
+type LogFunc func(level safcm.LogLevel, format string, a ...interface{})
+
+type Logger interface {
+       Verbosef(format string, a ...interface{})
+       Debugf(format string, a ...interface{})
+       Debug2f(format string, a ...interface{})
+}
+
+type PrefixLogger struct {
+       fun    LogFunc
+       prefix string
+}
+
+func NewLogger(prefix string, fun LogFunc) *PrefixLogger {
+       return &PrefixLogger{
+               fun:    fun,
+               prefix: prefix,
+       }
+}
+
+func (l *PrefixLogger) Verbosef(format string, a ...interface{}) {
+       l.log(safcm.LogVerbose, format, a...)
+}
+func (l *PrefixLogger) Debugf(format string, a ...interface{}) {
+       l.log(safcm.LogDebug, format, a...)
+}
+func (l *PrefixLogger) Debug2f(format string, a ...interface{}) {
+       l.log(safcm.LogDebug2, format, a...)
+}
+
+func (l *PrefixLogger) log(level safcm.LogLevel,
+       format string, a ...interface{}) {
+       l.fun(level, "%s %s", l.prefix, fmt.Sprintf(format, a...))
+}