pax_global_header00006660000000000000000000000064122660775320014524gustar00rootroot0000000000000052 comment=70d039bee4b0e389e5be560491d8291708506f59 golang-coreos-log-0.0~git20140508/000077500000000000000000000000001226607753200164275ustar00rootroot00000000000000golang-coreos-log-0.0~git20140508/.gitignore000066400000000000000000000003741226607753200204230ustar00rootroot00000000000000# Compiled Object files, Static and Dynamic libs (Shared Objects) *.o *.a *.so # Folders _obj _test # Architecture specific extensions/prefixes *.[568vq] [568vq].out *.cgo1.go *.cgo2.c _cgo_defun.c _cgo_gotypes.go _cgo_export.* _testmain.go *.exe golang-coreos-log-0.0~git20140508/LICENSE000066400000000000000000000240411226607753200174350ustar00rootroot00000000000000Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. 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See the License for the specific language governing permissions and limitations under the License. golang-coreos-log-0.0~git20140508/README.md000066400000000000000000000070051226607753200177100ustar00rootroot00000000000000go-log ========== go-log is a simple logging library for Go which supports logging to systemd. ### Examples #### Default This example uses the default log to log to standard out and (if available) to systemd: ```go package main import ( "github.com/coreos/go-log/log" ) func main() { log.Info("Hello World.") log.Error("There's nothing more to this program.") } ``` #### Using Sinks and Formats ```go package main import ( "github.com/coreos/go-log/log" "os" ) func main() { l := log.NewSimple( log.WriterSink(os.Stderr, "%s: %s[%d] %s\n", []string{"priority", "executable", "pid", "message"})) l.Info("Here's a differently formatted log message.") } ``` #### Custom Sink This example only logs messages with priority `PriErr` and greater. ```go package main import ( "github.com/coreos/go-log/log" "os" ) func main() { l := log.NewSimple( &PriorityFilter{ log.PriErr, log.WriterSink(os.Stdout, log.BasicFormat, log.BasicFields), }) l.Info("This will be filtered out") l.Info("and not printed at all.") l.Error("This will be printed, though!") l.Critical("And so will this!") } type PriorityFilter struct { priority log.Priority target log.Sink } func (filter *PriorityFilter) Log(fields log.Fields) { // lower priority values indicate more important messages if fields["priority"].(log.Priority) <= filter.priority { filter.target.Log(fields) } } ``` ### Fields The following fields are available for use in all sinks: ```go "prefix" string // static field available to all sinks "seq" uint64 // auto-incrementing sequence number "start_time" time.Time // start time of the log "time" string // formatted time of log entry "full_time" time.Time // time of log entry "rtime" time.Duration // relative time of log entry since started "pid" int // process id "executable" string // executable filename ``` In addition, if `verbose=true` is passed to `New()`, the following (somewhat expensive) runtime fields are also available: ```go "funcname" string // function name where the log function was called "lineno" int // line number where the log function was called "pathname" string // full pathname of caller "filename" string // filename of caller ``` ### Logging functions All these functions can also be called directly to use the default log. ```go func (*Logger) Log(priority Priority, v ...interface) func (*Logger) Logf(priority Priority, format string, v ...interface{}) func (*Logger) Emergency(v ...interface) func (*Logger) Emergencyf(format string, v ...interface{}) func (*Logger) Alert(v ...interface) func (*Logger) Alertf(format string, v ...interface{}) func (*Logger) Critical(v ...interface) func (*Logger) Criticalf(format string, v ...interface{}) func (*Logger) Error(v ...interface) func (*Logger) Errorf(format string, v ...interface{}) func (*Logger) Warning(v ...interface) func (*Logger) Warningf(format string, v ...interface{}) func (*Logger) Notice(v ...interface) func (*Logger) Noticef(format string, v ...interface{}) func (*Logger) Info(v ...interface) func (*Logger) Infof(format string, v ...interface{}) func (*Logger) Debug(v ...interface) func (*Logger) Debugf(format string, v ...interface{}) ``` ### Acknowledgements This package is a mostly-from-scratch rewrite of [ccding/go-logging](https://github.com/ccding/go-logging) with some features removed and systemd support added. golang-coreos-log-0.0~git20140508/log/000077500000000000000000000000001226607753200172105ustar00rootroot00000000000000golang-coreos-log-0.0~git20140508/log/commands.go000066400000000000000000000133121226607753200213400ustar00rootroot00000000000000package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "fmt" "os" ) var BasicFormat = "%s [%9s] %s- %s\n" var BasicFields = []string{"time", "priority", "prefix", "message"} var RichFormat = "%s [%9s] %d %s - %s:%s:%d - %s\n" var RichFields = []string{"full_time", "priority", "seq", "prefix", "filename", "funcname", "lineno", "message"} // This function has an unusual name to aid in finding it while walking the // stack. We need to do some dead reckoning from this function to access the // caller's stack, so there is a consistent call depth above this function. func (logger *Logger) Log(priority Priority, v ...interface{}) { fields := logger.fieldValues() fields["priority"] = priority fields["message"] = fmt.Sprint(v...) for _, sink := range logger.sinks { sink.Log(fields) } } func (logger *Logger) Logf(priority Priority, format string, v ...interface{}) { logger.Log(priority, fmt.Sprintf(format, v...)) } func (logger *Logger) Emergency(v ...interface{}) { logger.Log(PriEmerg, v...) } func (logger *Logger) Emergencyf(format string, v ...interface{}) { logger.Log(PriEmerg, fmt.Sprintf(format, v...)) } func (logger *Logger) Alert(v ...interface{}) { logger.Log(PriAlert, v...) } func (logger *Logger) Alertf(format string, v ...interface{}) { logger.Log(PriAlert, fmt.Sprintf(format, v...)) } func (logger *Logger) Critical(v ...interface{}) { logger.Log(PriCrit, v...) } func (logger *Logger) Criticalf(format string, v ...interface{}) { logger.Log(PriCrit, fmt.Sprintf(format, v...)) } func (logger *Logger) Error(v ...interface{}) { logger.Log(PriErr, v...) } func (logger *Logger) Errorf(format string, v ...interface{}) { logger.Log(PriErr, fmt.Sprintf(format, v...)) } func (logger *Logger) Warning(v ...interface{}) { logger.Log(PriWarning, v...) } func (logger *Logger) Warningf(format string, v ...interface{}) { logger.Log(PriWarning, fmt.Sprintf(format, v...)) } func (logger *Logger) Notice(v ...interface{}) { logger.Log(PriNotice, v...) } func (logger *Logger) Noticef(format string, v ...interface{}) { logger.Log(PriNotice, fmt.Sprintf(format, v...)) } func (logger *Logger) Info(v ...interface{}) { logger.Log(PriInfo, v...) } func (logger *Logger) Infof(format string, v ...interface{}) { logger.Log(PriInfo, fmt.Sprintf(format, v...)) } func (logger *Logger) Debug(v ...interface{}) { logger.Log(PriDebug, v...) } func (logger *Logger) Debugf(format string, v ...interface{}) { logger.Log(PriDebug, fmt.Sprintf(format, v...)) } func Emergency(v ...interface{}) { defaultLogger.Log(PriEmerg, v...) } func Emergencyf(format string, v ...interface{}) { defaultLogger.Log(PriEmerg, fmt.Sprintf(format, v...)) } func Alert(v ...interface{}) { defaultLogger.Log(PriAlert, v...) } func Alertf(format string, v ...interface{}) { defaultLogger.Log(PriAlert, fmt.Sprintf(format, v...)) } func Critical(v ...interface{}) { defaultLogger.Log(PriCrit, v...) } func Criticalf(format string, v ...interface{}) { defaultLogger.Log(PriCrit, fmt.Sprintf(format, v...)) } func Error(v ...interface{}) { defaultLogger.Log(PriErr, v...) } func Errorf(format string, v ...interface{}) { defaultLogger.Log(PriErr, fmt.Sprintf(format, v...)) } func Warning(v ...interface{}) { defaultLogger.Log(PriWarning, v...) } func Warningf(format string, v ...interface{}) { defaultLogger.Log(PriWarning, fmt.Sprintf(format, v...)) } func Notice(v ...interface{}) { defaultLogger.Log(PriNotice, v...) } func Noticef(format string, v ...interface{}) { defaultLogger.Log(PriNotice, fmt.Sprintf(format, v...)) } func Info(v ...interface{}) { defaultLogger.Log(PriInfo, v...) } func Infof(format string, v ...interface{}) { defaultLogger.Log(PriInfo, fmt.Sprintf(format, v...)) } func Debug(v ...interface{}) { defaultLogger.Log(PriDebug, v...) } func Debugf(format string, v ...interface{}) { defaultLogger.Log(PriDebug, fmt.Sprintf(format, v...)) } // Standard library log functions func (logger *Logger)Fatalln (v ...interface{}) { logger.Log(PriCrit, v...) os.Exit(1) } func (logger *Logger)Fatalf (format string, v ...interface{}) { logger.Logf(PriCrit, format, v...) os.Exit(1) } func (logger *Logger)Panicln (v ...interface{}) { s := fmt.Sprint(v...) logger.Log(PriErr, s) panic(s) } func (logger *Logger)Panicf (format string, v ...interface{}) { s := fmt.Sprintf(format, v...) logger.Log(PriErr, s) panic(s) } func (logger *Logger)Println (v ...interface{}) { logger.Log(PriInfo, v...) } func (logger *Logger)Printf (format string, v ...interface{}) { logger.Logf(PriInfo, format, v...) } func Fatalln (v ...interface{}) { defaultLogger.Log(PriCrit, v...) os.Exit(1) } func Fatalf (format string, v ...interface{}) { defaultLogger.Logf(PriCrit, format, v...) os.Exit(1) } func Panicln (v ...interface{}) { s := fmt.Sprint(v...) defaultLogger.Log(PriErr, s) panic(s) } func Panicf (format string, v ...interface{}) { s := fmt.Sprintf(format, v...) defaultLogger.Log(PriErr, s) panic(s) } func Println (v ...interface{}) { defaultLogger.Log(PriInfo, v...) } func Printf (format string, v ...interface{}) { defaultLogger.Logf(PriInfo, format, v...) } golang-coreos-log-0.0~git20140508/log/fields.go000066400000000000000000000041521226607753200210070ustar00rootroot00000000000000package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "os" "path" "runtime" "strings" "sync/atomic" "time" ) type Fields map[string]interface{} func (logger *Logger) fieldValues() Fields { now := time.Now() fields := Fields{ "prefix": logger.prefix, // static field available to all sinks "seq": logger.nextSeq(), // auto-incrementing sequence number "start_time": logger.created, // start time of the logger "time": now.Format(time.StampMilli), // formatted time of log entry "full_time": now, // time of log entry "rtime": time.Since(logger.created), // relative time of log entry since started "pid": os.Getpid(), // process id "executable": logger.executable, // executable filename } if logger.verbose { setVerboseFields(fields) } return fields } func (logger *Logger) nextSeq() uint64 { return atomic.AddUint64(&logger.seq, 1) } func setVerboseFields(fields Fields) { callers := make([]uintptr, 10) n := runtime.Callers(3, callers) // starts in (*Logger).Log or similar callers = callers[:n] for _, pc := range callers { f := runtime.FuncForPC(pc) if !strings.Contains(f.Name(), "logger.(*Logger)") { fields["funcname"] = f.Name() pathname, lineno := f.FileLine(pc) fields["lineno"] = lineno fields["pathname"] = pathname fields["filename"] = path.Base(pathname) return } } } golang-coreos-log-0.0~git20140508/log/logger.go000066400000000000000000000042651226607753200210250ustar00rootroot00000000000000package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "bitbucket.org/kardianos/osext" "os" "path" "time" ) // Logger is user-immutable immutable struct which can log to several outputs type Logger struct { sinks []Sink // the sinks this logger will log to verbose bool // gather expensive logging data? prefix string // static field available to all log sinks under this logger created time.Time // time when this logger was created seq uint64 // sequential number of log message, starting at 1 executable string // executable name } // New creates a new Logger which logs to all the supplied sinks. The prefix // argument is passed to all loggers under the field "prefix" with every log // message. If verbose is true, more expensive runtime fields will be computed // and passed to loggers. These fields are funcname, lineno, pathname, and // filename. func New(prefix string, verbose bool, sinks ...Sink) *Logger { return &Logger{ sinks: sinks, verbose: verbose, prefix: prefix, created: time.Now(), seq: 0, executable: getExecutableName(), } } func getExecutableName() string { executablePath, err := osext.Executable() if err != nil { return "(UNKNOWN)" } else { return path.Base(executablePath) } } // NewSimple(sinks...) is equivalent to New("", false, sinks...) func NewSimple(sinks ...Sink) *Logger { return New("", false, sinks...) } var defaultLogger *Logger func init() { defaultLogger = NewSimple(CombinedSink(os.Stdout, BasicFormat, BasicFields)) } golang-coreos-log-0.0~git20140508/log/priority.go000066400000000000000000000023121226607753200214160ustar00rootroot00000000000000package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding type Priority int const ( PriEmerg Priority = iota PriAlert PriCrit PriErr PriWarning PriNotice PriInfo PriDebug ) func (priority Priority) String() string { switch priority { case PriEmerg: return "EMERGENCY" case PriAlert: return "ALERT" case PriCrit: return "CRITICAL" case PriErr: return "ERROR" case PriWarning: return "WARNING" case PriNotice: return "NOTICE" case PriInfo: return "INFO" case PriDebug: return "DEBUG" default: return "UNKNOWN" } } golang-coreos-log-0.0~git20140508/log/sinks.go000066400000000000000000000037611226607753200206750ustar00rootroot00000000000000package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "fmt" "io" "sync" ) const AsyncBuffer = 100 type Sink interface { Log(Fields) } type nullSink struct{} func (sink *nullSink) Log(fields Fields) {} func NullSink() Sink { return &nullSink{} } type writerSink struct { lock sync.Mutex out io.Writer format string fields []string } func (sink *writerSink) Log(fields Fields) { vals := make([]interface{}, len(sink.fields)) for i, field := range sink.fields { var ok bool vals[i], ok = fields[field] if !ok { vals[i] = "???" } } sink.lock.Lock() defer sink.lock.Unlock() fmt.Fprintf(sink.out, sink.format, vals...) } func WriterSink(out io.Writer, format string, fields []string) Sink { return &writerSink{ out: out, format: format, fields: fields, } } type combinedSink struct { sinks []Sink } func (sink *combinedSink) Log(fields Fields) { for _, s := range sink.sinks { s.Log(fields) } } type priorityFilter struct { priority Priority target Sink } func (filter *priorityFilter) Log(fields Fields) { // lower priority values indicate more important messages if fields["priority"].(Priority) <= filter.priority { filter.target.Log(fields) } } func PriorityFilter(priority Priority, target Sink) Sink { return &priorityFilter{ priority: priority, target: target, } } golang-coreos-log-0.0~git20140508/log/sinks_unix.go000066400000000000000000000037361226607753200217420ustar00rootroot00000000000000// +build !windows package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "fmt" "github.com/coreos/go-systemd/journal" "io" "strings" ) type journalSink struct{} func (sink *journalSink) Log(fields Fields) { message := fields["message"].(string) priority := toJournalPriority(fields["priority"].(Priority)) journalFields := make(map[string]string) for k, v := range fields { if k == "message" || k == "priority" { continue } journalFields[strings.ToUpper(k)] = fmt.Sprint(v) } journal.Send(message, priority, journalFields) } func toJournalPriority(priority Priority) journal.Priority { switch priority { case PriEmerg: return journal.PriEmerg case PriAlert: return journal.PriAlert case PriCrit: return journal.PriCrit case PriErr: return journal.PriErr case PriWarning: return journal.PriWarning case PriNotice: return journal.PriNotice case PriInfo: return journal.PriInfo case PriDebug: return journal.PriDebug default: return journal.PriErr } } func JournalSink() Sink { return &journalSink{} } func CombinedSink(writer io.Writer, format string, fields []string) Sink { sinks := make([]Sink, 0) sinks = append(sinks, WriterSink(writer, format, fields)) if journal.Enabled() { sinks = append(sinks, JournalSink()) } return &combinedSink{ sinks: sinks, } } golang-coreos-log-0.0~git20140508/log/sinks_windows.go000066400000000000000000000017171226607753200224460ustar00rootroot00000000000000// +build windows package log // Copyright 2013, CoreOS, Inc. All rights reserved. // // 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. // // author: David Fisher // based on previous package by: Cong Ding import ( "io" ) func CombinedSink(writer io.Writer, format string, fields []string) Sink { sinks := make([]Sink, 0) sinks = append(sinks, WriterSink(writer, format, fields)) return &combinedSink{ sinks: sinks, } }