Added vendored logrus
This commit is contained in:
Thomas Boerger
parent
880a7a88d1
commit
7886f2f1db
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# 0.8.7
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* logrus/core: fix possible race (#216)
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* logrus/doc: small typo fixes and doc improvements
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# 0.8.6
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* hooks/raven: allow passing an initialized client
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# 0.8.5
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* logrus/core: revert #208
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# 0.8.4
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* formatter/text: fix data race (#218)
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# 0.8.3
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* logrus/core: fix entry log level (#208)
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* logrus/core: improve performance of text formatter by 40%
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* logrus/core: expose `LevelHooks` type
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* logrus/core: add support for DragonflyBSD and NetBSD
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* formatter/text: print structs more verbosely
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# 0.8.2
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* logrus: fix more Fatal family functions
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# 0.8.1
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* logrus: fix not exiting on `Fatalf` and `Fatalln`
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# 0.8.0
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* logrus: defaults to stderr instead of stdout
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* hooks/sentry: add special field for `*http.Request`
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* formatter/text: ignore Windows for colors
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# 0.7.3
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* formatter/\*: allow configuration of timestamp layout
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# 0.7.2
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* formatter/text: Add configuration option for time format (#158)
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@ -0,0 +1,21 @@
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The MIT License (MIT)
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Copyright (c) 2014 Simon Eskildsen
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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# Logrus <img src="http://i.imgur.com/hTeVwmJ.png" width="40" height="40" alt=":walrus:" class="emoji" title=":walrus:"/> [](https://travis-ci.org/Sirupsen/logrus) [][godoc]
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Logrus is a structured logger for Go (golang), completely API compatible with
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the standard library logger. [Godoc][godoc]. **Please note the Logrus API is not
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yet stable (pre 1.0). Logrus itself is completely stable and has been used in
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many large deployments. The core API is unlikely to change much but please
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version control your Logrus to make sure you aren't fetching latest `master` on
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every build.**
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Nicely color-coded in development (when a TTY is attached, otherwise just
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plain text):
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With `log.Formatter = new(logrus.JSONFormatter)`, for easy parsing by logstash
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or Splunk:
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```json
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{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
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ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
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{"level":"warning","msg":"The group's number increased tremendously!",
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"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
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{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
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"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
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{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
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"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
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{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
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"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
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```
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With the default `log.Formatter = new(&log.TextFormatter{})` when a TTY is not
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attached, the output is compatible with the
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[logfmt](http://godoc.org/github.com/kr/logfmt) format:
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```text
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time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
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time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
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time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
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time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
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time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
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time="2015-03-26T01:27:38-04:00" level=fatal msg="The ice breaks!" err=&{0x2082280c0 map[animal:orca size:9009] 2015-03-26 01:27:38.441574009 -0400 EDT panic It's over 9000!} number=100 omg=true
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exit status 1
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```
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#### Example
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The simplest way to use Logrus is simply the package-level exported logger:
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```go
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package main
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import (
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log "github.com/Sirupsen/logrus"
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)
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func main() {
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log.WithFields(log.Fields{
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"animal": "walrus",
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}).Info("A walrus appears")
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}
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```
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Note that it's completely api-compatible with the stdlib logger, so you can
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replace your `log` imports everywhere with `log "github.com/Sirupsen/logrus"`
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and you'll now have the flexibility of Logrus. You can customize it all you
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want:
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```go
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package main
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import (
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"os"
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log "github.com/Sirupsen/logrus"
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"github.com/Sirupsen/logrus/hooks/airbrake"
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)
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func init() {
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// Log as JSON instead of the default ASCII formatter.
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log.SetFormatter(&log.JSONFormatter{})
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// Use the Airbrake hook to report errors that have Error severity or above to
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// an exception tracker. You can create custom hooks, see the Hooks section.
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log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
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// Output to stderr instead of stdout, could also be a file.
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log.SetOutput(os.Stderr)
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// Only log the warning severity or above.
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log.SetLevel(log.WarnLevel)
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}
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func main() {
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log.WithFields(log.Fields{
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"animal": "walrus",
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"size": 10,
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}).Info("A group of walrus emerges from the ocean")
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log.WithFields(log.Fields{
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"omg": true,
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"number": 122,
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}).Warn("The group's number increased tremendously!")
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log.WithFields(log.Fields{
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"omg": true,
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"number": 100,
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}).Fatal("The ice breaks!")
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// A common pattern is to re-use fields between logging statements by re-using
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// the logrus.Entry returned from WithFields()
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contextLogger := log.WithFields(log.Fields{
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"common": "this is a common field",
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"other": "I also should be logged always",
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})
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contextLogger.Info("I'll be logged with common and other field")
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contextLogger.Info("Me too")
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}
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```
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For more advanced usage such as logging to multiple locations from the same
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application, you can also create an instance of the `logrus` Logger:
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```go
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package main
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import (
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"github.com/Sirupsen/logrus"
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)
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// Create a new instance of the logger. You can have any number of instances.
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var log = logrus.New()
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func main() {
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// The API for setting attributes is a little different than the package level
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// exported logger. See Godoc.
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log.Out = os.Stderr
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log.WithFields(logrus.Fields{
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"animal": "walrus",
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"size": 10,
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}).Info("A group of walrus emerges from the ocean")
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}
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```
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#### Fields
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Logrus encourages careful, structured logging though logging fields instead of
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long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
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to send event %s to topic %s with key %d")`, you should log the much more
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discoverable:
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```go
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log.WithFields(log.Fields{
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"event": event,
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"topic": topic,
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"key": key,
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}).Fatal("Failed to send event")
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```
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We've found this API forces you to think about logging in a way that produces
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much more useful logging messages. We've been in countless situations where just
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a single added field to a log statement that was already there would've saved us
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hours. The `WithFields` call is optional.
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In general, with Logrus using any of the `printf`-family functions should be
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seen as a hint you should add a field, however, you can still use the
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`printf`-family functions with Logrus.
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#### Hooks
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You can add hooks for logging levels. For example to send errors to an exception
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tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
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multiple places simultaneously, e.g. syslog.
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Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
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`init`:
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```go
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import (
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log "github.com/Sirupsen/logrus"
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"github.com/Sirupsen/logrus/hooks/airbrake"
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logrus_syslog "github.com/Sirupsen/logrus/hooks/syslog"
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"log/syslog"
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)
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func init() {
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log.AddHook(airbrake.NewHook("https://example.com", "xyz", "development"))
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hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
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if err != nil {
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log.Error("Unable to connect to local syslog daemon")
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} else {
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log.AddHook(hook)
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}
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}
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```
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| Hook | Description |
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| ----- | ----------- |
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| [Airbrake](https://github.com/Sirupsen/logrus/blob/master/hooks/airbrake/airbrake.go) | Send errors to an exception tracking service compatible with the Airbrake API. Uses [`airbrake-go`](https://github.com/tobi/airbrake-go) behind the scenes. |
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| [Papertrail](https://github.com/Sirupsen/logrus/blob/master/hooks/papertrail/papertrail.go) | Send errors to the Papertrail hosted logging service via UDP. |
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| [Syslog](https://github.com/Sirupsen/logrus/blob/master/hooks/syslog/syslog.go) | Send errors to remote syslog server. Uses standard library `log/syslog` behind the scenes. |
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| [BugSnag](https://github.com/Sirupsen/logrus/blob/master/hooks/bugsnag/bugsnag.go) | Send errors to the Bugsnag exception tracking service. |
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| [Sentry](https://github.com/Sirupsen/logrus/blob/master/hooks/sentry/sentry.go) | Send errors to the Sentry error logging and aggregation service. |
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| [Hiprus](https://github.com/nubo/hiprus) | Send errors to a channel in hipchat. |
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| [Logrusly](https://github.com/sebest/logrusly) | Send logs to [Loggly](https://www.loggly.com/) |
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| [Slackrus](https://github.com/johntdyer/slackrus) | Hook for Slack chat. |
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| [Journalhook](https://github.com/wercker/journalhook) | Hook for logging to `systemd-journald` |
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| [Graylog](https://github.com/gemnasium/logrus-hooks/tree/master/graylog) | Hook for logging to [Graylog](http://graylog2.org/) |
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| [Raygun](https://github.com/squirkle/logrus-raygun-hook) | Hook for logging to [Raygun.io](http://raygun.io/) |
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| [LFShook](https://github.com/rifflock/lfshook) | Hook for logging to the local filesystem |
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| [Honeybadger](https://github.com/agonzalezro/logrus_honeybadger) | Hook for sending exceptions to Honeybadger |
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| [Mail](https://github.com/zbindenren/logrus_mail) | Hook for sending exceptions via mail |
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| [Rollrus](https://github.com/heroku/rollrus) | Hook for sending errors to rollbar |
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| [Fluentd](https://github.com/evalphobia/logrus_fluent) | Hook for logging to fluentd |
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| [Mongodb](https://github.com/weekface/mgorus) | Hook for logging to mongodb |
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#### Level logging
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Logrus has six logging levels: Debug, Info, Warning, Error, Fatal and Panic.
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```go
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log.Debug("Useful debugging information.")
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log.Info("Something noteworthy happened!")
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log.Warn("You should probably take a look at this.")
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log.Error("Something failed but I'm not quitting.")
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// Calls os.Exit(1) after logging
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log.Fatal("Bye.")
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// Calls panic() after logging
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log.Panic("I'm bailing.")
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```
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You can set the logging level on a `Logger`, then it will only log entries with
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that severity or anything above it:
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```go
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// Will log anything that is info or above (warn, error, fatal, panic). Default.
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log.SetLevel(log.InfoLevel)
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```
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It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
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environment if your application has that.
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#### Entries
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Besides the fields added with `WithField` or `WithFields` some fields are
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automatically added to all logging events:
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1. `time`. The timestamp when the entry was created.
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2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
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the `AddFields` call. E.g. `Failed to send event.`
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3. `level`. The logging level. E.g. `info`.
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#### Environments
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Logrus has no notion of environment.
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If you wish for hooks and formatters to only be used in specific environments,
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you should handle that yourself. For example, if your application has a global
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variable `Environment`, which is a string representation of the environment you
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could do:
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```go
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import (
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log "github.com/Sirupsen/logrus"
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)
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init() {
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// do something here to set environment depending on an environment variable
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// or command-line flag
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if Environment == "production" {
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log.SetFormatter(&log.JSONFormatter{})
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} else {
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// The TextFormatter is default, you don't actually have to do this.
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log.SetFormatter(&log.TextFormatter{})
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}
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}
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```
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This configuration is how `logrus` was intended to be used, but JSON in
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production is mostly only useful if you do log aggregation with tools like
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Splunk or Logstash.
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#### Formatters
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The built-in logging formatters are:
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* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
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without colors.
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* *Note:* to force colored output when there is no TTY, set the `ForceColors`
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field to `true`. To force no colored output even if there is a TTY set the
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`DisableColors` field to `true`
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* `logrus.JSONFormatter`. Logs fields as JSON.
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* `logrus_logstash.LogstashFormatter`. Logs fields as Logstash Events (http://logstash.net).
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```go
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logrus.SetFormatter(&logrus_logstash.LogstashFormatter{Type: “application_name"})
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```
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Third party logging formatters:
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* [`zalgo`](https://github.com/aybabtme/logzalgo): invoking the P͉̫o̳̼̊w̖͈̰͎e̬͔̭͂r͚̼̹̲ ̫͓͉̳͈ō̠͕͖̚f̝͍̠ ͕̲̞͖͑Z̖̫̤̫ͪa͉̬͈̗l͖͎g̳̥o̰̥̅!̣͔̲̻͊̄ ̙̘̦̹̦.
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You can define your formatter by implementing the `Formatter` interface,
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requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
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`Fields` type (`map[string]interface{}`) with all your fields as well as the
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default ones (see Entries section above):
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```go
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type MyJSONFormatter struct {
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}
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log.SetFormatter(new(MyJSONFormatter))
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func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
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// Note this doesn't include Time, Level and Message which are available on
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// the Entry. Consult `godoc` on information about those fields or read the
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// source of the official loggers.
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serialized, err := json.Marshal(entry.Data)
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if err != nil {
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return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
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}
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return append(serialized, '\n'), nil
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}
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```
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#### Logger as an `io.Writer`
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Logrus can be transformed into an `io.Writer`. That writer is the end of an `io.Pipe` and it is your responsibility to close it.
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```go
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w := logger.Writer()
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defer w.Close()
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srv := http.Server{
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// create a stdlib log.Logger that writes to
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// logrus.Logger.
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ErrorLog: log.New(w, "", 0),
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}
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```
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Each line written to that writer will be printed the usual way, using formatters
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and hooks. The level for those entries is `info`.
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#### Rotation
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Log rotation is not provided with Logrus. Log rotation should be done by an
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external program (like `logrotate(8)`) that can compress and delete old log
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entries. It should not be a feature of the application-level logger.
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[godoc]: https://godoc.org/github.com/Sirupsen/logrus
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|
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@ -0,0 +1,26 @@
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/*
|
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Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
|
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|
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|
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The simplest way to use Logrus is simply the package-level exported logger:
|
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|
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package main
|
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|
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import (
|
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log "github.com/Sirupsen/logrus"
|
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)
|
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|
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func main() {
|
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log.WithFields(log.Fields{
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"animal": "walrus",
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||||
"number": 1,
|
||||
"size": 10,
|
||||
}).Info("A walrus appears")
|
||||
}
|
||||
|
||||
Output:
|
||||
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
|
||||
|
||||
For a full guide visit https://github.com/Sirupsen/logrus
|
||||
*/
|
||||
package logrus
|
||||
|
|
@ -0,0 +1,264 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Defines the key when adding errors using WithError.
|
||||
var ErrorKey = "error"
|
||||
|
||||
// An entry is the final or intermediate Logrus logging entry. It contains all
|
||||
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
|
||||
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
|
||||
// passed around as much as you wish to avoid field duplication.
|
||||
type Entry struct {
|
||||
Logger *Logger
|
||||
|
||||
// Contains all the fields set by the user.
|
||||
Data Fields
|
||||
|
||||
// Time at which the log entry was created
|
||||
Time time.Time
|
||||
|
||||
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
|
||||
Level Level
|
||||
|
||||
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
|
||||
Message string
|
||||
}
|
||||
|
||||
func NewEntry(logger *Logger) *Entry {
|
||||
return &Entry{
|
||||
Logger: logger,
|
||||
// Default is three fields, give a little extra room
|
||||
Data: make(Fields, 5),
|
||||
}
|
||||
}
|
||||
|
||||
// Returns a reader for the entry, which is a proxy to the formatter.
|
||||
func (entry *Entry) Reader() (*bytes.Buffer, error) {
|
||||
serialized, err := entry.Logger.Formatter.Format(entry)
|
||||
return bytes.NewBuffer(serialized), err
|
||||
}
|
||||
|
||||
// Returns the string representation from the reader and ultimately the
|
||||
// formatter.
|
||||
func (entry *Entry) String() (string, error) {
|
||||
reader, err := entry.Reader()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return reader.String(), err
|
||||
}
|
||||
|
||||
// Add an error as single field (using the key defined in ErrorKey) to the Entry.
|
||||
func (entry *Entry) WithError(err error) *Entry {
|
||||
return entry.WithField(ErrorKey, err)
|
||||
}
|
||||
|
||||
// Add a single field to the Entry.
|
||||
func (entry *Entry) WithField(key string, value interface{}) *Entry {
|
||||
return entry.WithFields(Fields{key: value})
|
||||
}
|
||||
|
||||
// Add a map of fields to the Entry.
|
||||
func (entry *Entry) WithFields(fields Fields) *Entry {
|
||||
data := Fields{}
|
||||
for k, v := range entry.Data {
|
||||
data[k] = v
|
||||
}
|
||||
for k, v := range fields {
|
||||
data[k] = v
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: data}
|
||||
}
|
||||
|
||||
// This function is not declared with a pointer value because otherwise
|
||||
// race conditions will occur when using multiple goroutines
|
||||
func (entry Entry) log(level Level, msg string) {
|
||||
entry.Time = time.Now()
|
||||
entry.Level = level
|
||||
entry.Message = msg
|
||||
|
||||
if err := entry.Logger.Hooks.Fire(level, &entry); err != nil {
|
||||
entry.Logger.mu.Lock()
|
||||
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
|
||||
entry.Logger.mu.Unlock()
|
||||
}
|
||||
|
||||
reader, err := entry.Reader()
|
||||
if err != nil {
|
||||
entry.Logger.mu.Lock()
|
||||
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
|
||||
entry.Logger.mu.Unlock()
|
||||
}
|
||||
|
||||
entry.Logger.mu.Lock()
|
||||
defer entry.Logger.mu.Unlock()
|
||||
|
||||
_, err = io.Copy(entry.Logger.Out, reader)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
|
||||
}
|
||||
|
||||
// To avoid Entry#log() returning a value that only would make sense for
|
||||
// panic() to use in Entry#Panic(), we avoid the allocation by checking
|
||||
// directly here.
|
||||
if level <= PanicLevel {
|
||||
panic(&entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Debug(args ...interface{}) {
|
||||
if entry.Logger.Level >= DebugLevel {
|
||||
entry.log(DebugLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Print(args ...interface{}) {
|
||||
entry.Info(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Info(args ...interface{}) {
|
||||
if entry.Logger.Level >= InfoLevel {
|
||||
entry.log(InfoLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warn(args ...interface{}) {
|
||||
if entry.Logger.Level >= WarnLevel {
|
||||
entry.log(WarnLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warning(args ...interface{}) {
|
||||
entry.Warn(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Error(args ...interface{}) {
|
||||
if entry.Logger.Level >= ErrorLevel {
|
||||
entry.log(ErrorLevel, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatal(args ...interface{}) {
|
||||
if entry.Logger.Level >= FatalLevel {
|
||||
entry.log(FatalLevel, fmt.Sprint(args...))
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panic(args ...interface{}) {
|
||||
if entry.Logger.Level >= PanicLevel {
|
||||
entry.log(PanicLevel, fmt.Sprint(args...))
|
||||
}
|
||||
panic(fmt.Sprint(args...))
|
||||
}
|
||||
|
||||
// Entry Printf family functions
|
||||
|
||||
func (entry *Entry) Debugf(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= DebugLevel {
|
||||
entry.Debug(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Infof(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= InfoLevel {
|
||||
entry.Info(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Printf(format string, args ...interface{}) {
|
||||
entry.Infof(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnf(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= WarnLevel {
|
||||
entry.Warn(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningf(format string, args ...interface{}) {
|
||||
entry.Warnf(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorf(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= ErrorLevel {
|
||||
entry.Error(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalf(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= FatalLevel {
|
||||
entry.Fatal(fmt.Sprintf(format, args...))
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicf(format string, args ...interface{}) {
|
||||
if entry.Logger.Level >= PanicLevel {
|
||||
entry.Panic(fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
// Entry Println family functions
|
||||
|
||||
func (entry *Entry) Debugln(args ...interface{}) {
|
||||
if entry.Logger.Level >= DebugLevel {
|
||||
entry.Debug(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Infoln(args ...interface{}) {
|
||||
if entry.Logger.Level >= InfoLevel {
|
||||
entry.Info(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Println(args ...interface{}) {
|
||||
entry.Infoln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnln(args ...interface{}) {
|
||||
if entry.Logger.Level >= WarnLevel {
|
||||
entry.Warn(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningln(args ...interface{}) {
|
||||
entry.Warnln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorln(args ...interface{}) {
|
||||
if entry.Logger.Level >= ErrorLevel {
|
||||
entry.Error(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalln(args ...interface{}) {
|
||||
if entry.Logger.Level >= FatalLevel {
|
||||
entry.Fatal(entry.sprintlnn(args...))
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicln(args ...interface{}) {
|
||||
if entry.Logger.Level >= PanicLevel {
|
||||
entry.Panic(entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
// Sprintlnn => Sprint no newline. This is to get the behavior of how
|
||||
// fmt.Sprintln where spaces are always added between operands, regardless of
|
||||
// their type. Instead of vendoring the Sprintln implementation to spare a
|
||||
// string allocation, we do the simplest thing.
|
||||
func (entry *Entry) sprintlnn(args ...interface{}) string {
|
||||
msg := fmt.Sprintln(args...)
|
||||
return msg[:len(msg)-1]
|
||||
}
|
||||
|
|
@ -0,0 +1,193 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
var (
|
||||
// std is the name of the standard logger in stdlib `log`
|
||||
std = New()
|
||||
)
|
||||
|
||||
func StandardLogger() *Logger {
|
||||
return std
|
||||
}
|
||||
|
||||
// SetOutput sets the standard logger output.
|
||||
func SetOutput(out io.Writer) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Out = out
|
||||
}
|
||||
|
||||
// SetFormatter sets the standard logger formatter.
|
||||
func SetFormatter(formatter Formatter) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Formatter = formatter
|
||||
}
|
||||
|
||||
// SetLevel sets the standard logger level.
|
||||
func SetLevel(level Level) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Level = level
|
||||
}
|
||||
|
||||
// GetLevel returns the standard logger level.
|
||||
func GetLevel() Level {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
return std.Level
|
||||
}
|
||||
|
||||
// AddHook adds a hook to the standard logger hooks.
|
||||
func AddHook(hook Hook) {
|
||||
std.mu.Lock()
|
||||
defer std.mu.Unlock()
|
||||
std.Hooks.Add(hook)
|
||||
}
|
||||
|
||||
// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
|
||||
func WithError(err error) *Entry {
|
||||
return std.WithField(ErrorKey, err)
|
||||
}
|
||||
|
||||
// WithField creates an entry from the standard logger and adds a field to
|
||||
// it. If you want multiple fields, use `WithFields`.
|
||||
//
|
||||
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
|
||||
// or Panic on the Entry it returns.
|
||||
func WithField(key string, value interface{}) *Entry {
|
||||
return std.WithField(key, value)
|
||||
}
|
||||
|
||||
// WithFields creates an entry from the standard logger and adds multiple
|
||||
// fields to it. This is simply a helper for `WithField`, invoking it
|
||||
// once for each field.
|
||||
//
|
||||
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
|
||||
// or Panic on the Entry it returns.
|
||||
func WithFields(fields Fields) *Entry {
|
||||
return std.WithFields(fields)
|
||||
}
|
||||
|
||||
// Debug logs a message at level Debug on the standard logger.
|
||||
func Debug(args ...interface{}) {
|
||||
std.Debug(args...)
|
||||
}
|
||||
|
||||
// Print logs a message at level Info on the standard logger.
|
||||
func Print(args ...interface{}) {
|
||||
std.Print(args...)
|
||||
}
|
||||
|
||||
// Info logs a message at level Info on the standard logger.
|
||||
func Info(args ...interface{}) {
|
||||
std.Info(args...)
|
||||
}
|
||||
|
||||
// Warn logs a message at level Warn on the standard logger.
|
||||
func Warn(args ...interface{}) {
|
||||
std.Warn(args...)
|
||||
}
|
||||
|
||||
// Warning logs a message at level Warn on the standard logger.
|
||||
func Warning(args ...interface{}) {
|
||||
std.Warning(args...)
|
||||
}
|
||||
|
||||
// Error logs a message at level Error on the standard logger.
|
||||
func Error(args ...interface{}) {
|
||||
std.Error(args...)
|
||||
}
|
||||
|
||||
// Panic logs a message at level Panic on the standard logger.
|
||||
func Panic(args ...interface{}) {
|
||||
std.Panic(args...)
|
||||
}
|
||||
|
||||
// Fatal logs a message at level Fatal on the standard logger.
|
||||
func Fatal(args ...interface{}) {
|
||||
std.Fatal(args...)
|
||||
}
|
||||
|
||||
// Debugf logs a message at level Debug on the standard logger.
|
||||
func Debugf(format string, args ...interface{}) {
|
||||
std.Debugf(format, args...)
|
||||
}
|
||||
|
||||
// Printf logs a message at level Info on the standard logger.
|
||||
func Printf(format string, args ...interface{}) {
|
||||
std.Printf(format, args...)
|
||||
}
|
||||
|
||||
// Infof logs a message at level Info on the standard logger.
|
||||
func Infof(format string, args ...interface{}) {
|
||||
std.Infof(format, args...)
|
||||
}
|
||||
|
||||
// Warnf logs a message at level Warn on the standard logger.
|
||||
func Warnf(format string, args ...interface{}) {
|
||||
std.Warnf(format, args...)
|
||||
}
|
||||
|
||||
// Warningf logs a message at level Warn on the standard logger.
|
||||
func Warningf(format string, args ...interface{}) {
|
||||
std.Warningf(format, args...)
|
||||
}
|
||||
|
||||
// Errorf logs a message at level Error on the standard logger.
|
||||
func Errorf(format string, args ...interface{}) {
|
||||
std.Errorf(format, args...)
|
||||
}
|
||||
|
||||
// Panicf logs a message at level Panic on the standard logger.
|
||||
func Panicf(format string, args ...interface{}) {
|
||||
std.Panicf(format, args...)
|
||||
}
|
||||
|
||||
// Fatalf logs a message at level Fatal on the standard logger.
|
||||
func Fatalf(format string, args ...interface{}) {
|
||||
std.Fatalf(format, args...)
|
||||
}
|
||||
|
||||
// Debugln logs a message at level Debug on the standard logger.
|
||||
func Debugln(args ...interface{}) {
|
||||
std.Debugln(args...)
|
||||
}
|
||||
|
||||
// Println logs a message at level Info on the standard logger.
|
||||
func Println(args ...interface{}) {
|
||||
std.Println(args...)
|
||||
}
|
||||
|
||||
// Infoln logs a message at level Info on the standard logger.
|
||||
func Infoln(args ...interface{}) {
|
||||
std.Infoln(args...)
|
||||
}
|
||||
|
||||
// Warnln logs a message at level Warn on the standard logger.
|
||||
func Warnln(args ...interface{}) {
|
||||
std.Warnln(args...)
|
||||
}
|
||||
|
||||
// Warningln logs a message at level Warn on the standard logger.
|
||||
func Warningln(args ...interface{}) {
|
||||
std.Warningln(args...)
|
||||
}
|
||||
|
||||
// Errorln logs a message at level Error on the standard logger.
|
||||
func Errorln(args ...interface{}) {
|
||||
std.Errorln(args...)
|
||||
}
|
||||
|
||||
// Panicln logs a message at level Panic on the standard logger.
|
||||
func Panicln(args ...interface{}) {
|
||||
std.Panicln(args...)
|
||||
}
|
||||
|
||||
// Fatalln logs a message at level Fatal on the standard logger.
|
||||
func Fatalln(args ...interface{}) {
|
||||
std.Fatalln(args...)
|
||||
}
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
package logrus
|
||||
|
||||
import "time"
|
||||
|
||||
const DefaultTimestampFormat = time.RFC3339
|
||||
|
||||
// The Formatter interface is used to implement a custom Formatter. It takes an
|
||||
// `Entry`. It exposes all the fields, including the default ones:
|
||||
//
|
||||
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
|
||||
// * `entry.Data["time"]`. The timestamp.
|
||||
// * `entry.Data["level"]. The level the entry was logged at.
|
||||
//
|
||||
// Any additional fields added with `WithField` or `WithFields` are also in
|
||||
// `entry.Data`. Format is expected to return an array of bytes which are then
|
||||
// logged to `logger.Out`.
|
||||
type Formatter interface {
|
||||
Format(*Entry) ([]byte, error)
|
||||
}
|
||||
|
||||
// This is to not silently overwrite `time`, `msg` and `level` fields when
|
||||
// dumping it. If this code wasn't there doing:
|
||||
//
|
||||
// logrus.WithField("level", 1).Info("hello")
|
||||
//
|
||||
// Would just silently drop the user provided level. Instead with this code
|
||||
// it'll logged as:
|
||||
//
|
||||
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
|
||||
//
|
||||
// It's not exported because it's still using Data in an opinionated way. It's to
|
||||
// avoid code duplication between the two default formatters.
|
||||
func prefixFieldClashes(data Fields) {
|
||||
_, ok := data["time"]
|
||||
if ok {
|
||||
data["fields.time"] = data["time"]
|
||||
}
|
||||
|
||||
_, ok = data["msg"]
|
||||
if ok {
|
||||
data["fields.msg"] = data["msg"]
|
||||
}
|
||||
|
||||
_, ok = data["level"]
|
||||
if ok {
|
||||
data["fields.level"] = data["level"]
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,34 @@
|
|||
package logrus
|
||||
|
||||
// A hook to be fired when logging on the logging levels returned from
|
||||
// `Levels()` on your implementation of the interface. Note that this is not
|
||||
// fired in a goroutine or a channel with workers, you should handle such
|
||||
// functionality yourself if your call is non-blocking and you don't wish for
|
||||
// the logging calls for levels returned from `Levels()` to block.
|
||||
type Hook interface {
|
||||
Levels() []Level
|
||||
Fire(*Entry) error
|
||||
}
|
||||
|
||||
// Internal type for storing the hooks on a logger instance.
|
||||
type LevelHooks map[Level][]Hook
|
||||
|
||||
// Add a hook to an instance of logger. This is called with
|
||||
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
|
||||
func (hooks LevelHooks) Add(hook Hook) {
|
||||
for _, level := range hook.Levels() {
|
||||
hooks[level] = append(hooks[level], hook)
|
||||
}
|
||||
}
|
||||
|
||||
// Fire all the hooks for the passed level. Used by `entry.log` to fire
|
||||
// appropriate hooks for a log entry.
|
||||
func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
|
||||
for _, hook := range hooks[level] {
|
||||
if err := hook.Fire(entry); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,41 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
type JSONFormatter struct {
|
||||
// TimestampFormat sets the format used for marshaling timestamps.
|
||||
TimestampFormat string
|
||||
}
|
||||
|
||||
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
data := make(Fields, len(entry.Data)+3)
|
||||
for k, v := range entry.Data {
|
||||
switch v := v.(type) {
|
||||
case error:
|
||||
// Otherwise errors are ignored by `encoding/json`
|
||||
// https://github.com/Sirupsen/logrus/issues/137
|
||||
data[k] = v.Error()
|
||||
default:
|
||||
data[k] = v
|
||||
}
|
||||
}
|
||||
prefixFieldClashes(data)
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = DefaultTimestampFormat
|
||||
}
|
||||
|
||||
data["time"] = entry.Time.Format(timestampFormat)
|
||||
data["msg"] = entry.Message
|
||||
data["level"] = entry.Level.String()
|
||||
|
||||
serialized, err := json.Marshal(data)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
|
||||
}
|
||||
return append(serialized, '\n'), nil
|
||||
}
|
||||
|
|
@ -0,0 +1,206 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
"sync"
|
||||
)
|
||||
|
||||
type Logger struct {
|
||||
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
|
||||
// file, or leave it default which is `os.Stderr`. You can also set this to
|
||||
// something more adventorous, such as logging to Kafka.
|
||||
Out io.Writer
|
||||
// Hooks for the logger instance. These allow firing events based on logging
|
||||
// levels and log entries. For example, to send errors to an error tracking
|
||||
// service, log to StatsD or dump the core on fatal errors.
|
||||
Hooks LevelHooks
|
||||
// All log entries pass through the formatter before logged to Out. The
|
||||
// included formatters are `TextFormatter` and `JSONFormatter` for which
|
||||
// TextFormatter is the default. In development (when a TTY is attached) it
|
||||
// logs with colors, but to a file it wouldn't. You can easily implement your
|
||||
// own that implements the `Formatter` interface, see the `README` or included
|
||||
// formatters for examples.
|
||||
Formatter Formatter
|
||||
// The logging level the logger should log at. This is typically (and defaults
|
||||
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
|
||||
// logged. `logrus.Debug` is useful in
|
||||
Level Level
|
||||
// Used to sync writing to the log.
|
||||
mu sync.Mutex
|
||||
}
|
||||
|
||||
// Creates a new logger. Configuration should be set by changing `Formatter`,
|
||||
// `Out` and `Hooks` directly on the default logger instance. You can also just
|
||||
// instantiate your own:
|
||||
//
|
||||
// var log = &Logger{
|
||||
// Out: os.Stderr,
|
||||
// Formatter: new(JSONFormatter),
|
||||
// Hooks: make(LevelHooks),
|
||||
// Level: logrus.DebugLevel,
|
||||
// }
|
||||
//
|
||||
// It's recommended to make this a global instance called `log`.
|
||||
func New() *Logger {
|
||||
return &Logger{
|
||||
Out: os.Stderr,
|
||||
Formatter: new(TextFormatter),
|
||||
Hooks: make(LevelHooks),
|
||||
Level: InfoLevel,
|
||||
}
|
||||
}
|
||||
|
||||
// Adds a field to the log entry, note that you it doesn't log until you call
|
||||
// Debug, Print, Info, Warn, Fatal or Panic. It only creates a log entry.
|
||||
// If you want multiple fields, use `WithFields`.
|
||||
func (logger *Logger) WithField(key string, value interface{}) *Entry {
|
||||
return NewEntry(logger).WithField(key, value)
|
||||
}
|
||||
|
||||
// Adds a struct of fields to the log entry. All it does is call `WithField` for
|
||||
// each `Field`.
|
||||
func (logger *Logger) WithFields(fields Fields) *Entry {
|
||||
return NewEntry(logger).WithFields(fields)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugf(format string, args ...interface{}) {
|
||||
if logger.Level >= DebugLevel {
|
||||
NewEntry(logger).Debugf(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Infof(format string, args ...interface{}) {
|
||||
if logger.Level >= InfoLevel {
|
||||
NewEntry(logger).Infof(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Printf(format string, args ...interface{}) {
|
||||
NewEntry(logger).Printf(format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnf(format string, args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warnf(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningf(format string, args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warnf(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorf(format string, args ...interface{}) {
|
||||
if logger.Level >= ErrorLevel {
|
||||
NewEntry(logger).Errorf(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalf(format string, args ...interface{}) {
|
||||
if logger.Level >= FatalLevel {
|
||||
NewEntry(logger).Fatalf(format, args...)
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicf(format string, args ...interface{}) {
|
||||
if logger.Level >= PanicLevel {
|
||||
NewEntry(logger).Panicf(format, args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Debug(args ...interface{}) {
|
||||
if logger.Level >= DebugLevel {
|
||||
NewEntry(logger).Debug(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Info(args ...interface{}) {
|
||||
if logger.Level >= InfoLevel {
|
||||
NewEntry(logger).Info(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Print(args ...interface{}) {
|
||||
NewEntry(logger).Info(args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warn(args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warn(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warning(args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warn(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Error(args ...interface{}) {
|
||||
if logger.Level >= ErrorLevel {
|
||||
NewEntry(logger).Error(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatal(args ...interface{}) {
|
||||
if logger.Level >= FatalLevel {
|
||||
NewEntry(logger).Fatal(args...)
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panic(args ...interface{}) {
|
||||
if logger.Level >= PanicLevel {
|
||||
NewEntry(logger).Panic(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugln(args ...interface{}) {
|
||||
if logger.Level >= DebugLevel {
|
||||
NewEntry(logger).Debugln(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Infoln(args ...interface{}) {
|
||||
if logger.Level >= InfoLevel {
|
||||
NewEntry(logger).Infoln(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Println(args ...interface{}) {
|
||||
NewEntry(logger).Println(args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnln(args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warnln(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningln(args ...interface{}) {
|
||||
if logger.Level >= WarnLevel {
|
||||
NewEntry(logger).Warnln(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorln(args ...interface{}) {
|
||||
if logger.Level >= ErrorLevel {
|
||||
NewEntry(logger).Errorln(args...)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalln(args ...interface{}) {
|
||||
if logger.Level >= FatalLevel {
|
||||
NewEntry(logger).Fatalln(args...)
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicln(args ...interface{}) {
|
||||
if logger.Level >= PanicLevel {
|
||||
NewEntry(logger).Panicln(args...)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
)
|
||||
|
||||
// Fields type, used to pass to `WithFields`.
|
||||
type Fields map[string]interface{}
|
||||
|
||||
// Level type
|
||||
type Level uint8
|
||||
|
||||
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
|
||||
func (level Level) String() string {
|
||||
switch level {
|
||||
case DebugLevel:
|
||||
return "debug"
|
||||
case InfoLevel:
|
||||
return "info"
|
||||
case WarnLevel:
|
||||
return "warning"
|
||||
case ErrorLevel:
|
||||
return "error"
|
||||
case FatalLevel:
|
||||
return "fatal"
|
||||
case PanicLevel:
|
||||
return "panic"
|
||||
}
|
||||
|
||||
return "unknown"
|
||||
}
|
||||
|
||||
// ParseLevel takes a string level and returns the Logrus log level constant.
|
||||
func ParseLevel(lvl string) (Level, error) {
|
||||
switch lvl {
|
||||
case "panic":
|
||||
return PanicLevel, nil
|
||||
case "fatal":
|
||||
return FatalLevel, nil
|
||||
case "error":
|
||||
return ErrorLevel, nil
|
||||
case "warn", "warning":
|
||||
return WarnLevel, nil
|
||||
case "info":
|
||||
return InfoLevel, nil
|
||||
case "debug":
|
||||
return DebugLevel, nil
|
||||
}
|
||||
|
||||
var l Level
|
||||
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
|
||||
}
|
||||
|
||||
// These are the different logging levels. You can set the logging level to log
|
||||
// on your instance of logger, obtained with `logrus.New()`.
|
||||
const (
|
||||
// PanicLevel level, highest level of severity. Logs and then calls panic with the
|
||||
// message passed to Debug, Info, ...
|
||||
PanicLevel Level = iota
|
||||
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
|
||||
// logging level is set to Panic.
|
||||
FatalLevel
|
||||
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
|
||||
// Commonly used for hooks to send errors to an error tracking service.
|
||||
ErrorLevel
|
||||
// WarnLevel level. Non-critical entries that deserve eyes.
|
||||
WarnLevel
|
||||
// InfoLevel level. General operational entries about what's going on inside the
|
||||
// application.
|
||||
InfoLevel
|
||||
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
|
||||
DebugLevel
|
||||
)
|
||||
|
||||
// Won't compile if StdLogger can't be realized by a log.Logger
|
||||
var (
|
||||
_ StdLogger = &log.Logger{}
|
||||
_ StdLogger = &Entry{}
|
||||
_ StdLogger = &Logger{}
|
||||
)
|
||||
|
||||
// StdLogger is what your logrus-enabled library should take, that way
|
||||
// it'll accept a stdlib logger and a logrus logger. There's no standard
|
||||
// interface, this is the closest we get, unfortunately.
|
||||
type StdLogger interface {
|
||||
Print(...interface{})
|
||||
Printf(string, ...interface{})
|
||||
Println(...interface{})
|
||||
|
||||
Fatal(...interface{})
|
||||
Fatalf(string, ...interface{})
|
||||
Fatalln(...interface{})
|
||||
|
||||
Panic(...interface{})
|
||||
Panicf(string, ...interface{})
|
||||
Panicln(...interface{})
|
||||
}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
// +build darwin freebsd openbsd netbsd dragonfly
|
||||
|
||||
package logrus
|
||||
|
||||
import "syscall"
|
||||
|
||||
const ioctlReadTermios = syscall.TIOCGETA
|
||||
|
||||
type Termios syscall.Termios
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
// Based on ssh/terminal:
|
||||
// Copyright 2013 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package logrus
|
||||
|
||||
import "syscall"
|
||||
|
||||
const ioctlReadTermios = syscall.TCGETS
|
||||
|
||||
type Termios syscall.Termios
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
// Based on ssh/terminal:
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build linux darwin freebsd openbsd netbsd dragonfly
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// IsTerminal returns true if the given file descriptor is a terminal.
|
||||
func IsTerminal() bool {
|
||||
fd := syscall.Stdout
|
||||
var termios Termios
|
||||
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
|
||||
return err == 0
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
// Based on ssh/terminal:
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build windows
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var kernel32 = syscall.NewLazyDLL("kernel32.dll")
|
||||
|
||||
var (
|
||||
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
|
||||
)
|
||||
|
||||
// IsTerminal returns true if the given file descriptor is a terminal.
|
||||
func IsTerminal() bool {
|
||||
fd := syscall.Stdout
|
||||
var st uint32
|
||||
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, uintptr(fd), uintptr(unsafe.Pointer(&st)), 0)
|
||||
return r != 0 && e == 0
|
||||
}
|
||||
|
|
@ -0,0 +1,159 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"runtime"
|
||||
"sort"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
const (
|
||||
nocolor = 0
|
||||
red = 31
|
||||
green = 32
|
||||
yellow = 33
|
||||
blue = 34
|
||||
gray = 37
|
||||
)
|
||||
|
||||
var (
|
||||
baseTimestamp time.Time
|
||||
isTerminal bool
|
||||
)
|
||||
|
||||
func init() {
|
||||
baseTimestamp = time.Now()
|
||||
isTerminal = IsTerminal()
|
||||
}
|
||||
|
||||
func miniTS() int {
|
||||
return int(time.Since(baseTimestamp) / time.Second)
|
||||
}
|
||||
|
||||
type TextFormatter struct {
|
||||
// Set to true to bypass checking for a TTY before outputting colors.
|
||||
ForceColors bool
|
||||
|
||||
// Force disabling colors.
|
||||
DisableColors bool
|
||||
|
||||
// Disable timestamp logging. useful when output is redirected to logging
|
||||
// system that already adds timestamps.
|
||||
DisableTimestamp bool
|
||||
|
||||
// Enable logging the full timestamp when a TTY is attached instead of just
|
||||
// the time passed since beginning of execution.
|
||||
FullTimestamp bool
|
||||
|
||||
// TimestampFormat to use for display when a full timestamp is printed
|
||||
TimestampFormat string
|
||||
|
||||
// The fields are sorted by default for a consistent output. For applications
|
||||
// that log extremely frequently and don't use the JSON formatter this may not
|
||||
// be desired.
|
||||
DisableSorting bool
|
||||
}
|
||||
|
||||
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
var keys []string = make([]string, 0, len(entry.Data))
|
||||
for k := range entry.Data {
|
||||
keys = append(keys, k)
|
||||
}
|
||||
|
||||
if !f.DisableSorting {
|
||||
sort.Strings(keys)
|
||||
}
|
||||
|
||||
b := &bytes.Buffer{}
|
||||
|
||||
prefixFieldClashes(entry.Data)
|
||||
|
||||
isColorTerminal := isTerminal && (runtime.GOOS != "windows")
|
||||
isColored := (f.ForceColors || isColorTerminal) && !f.DisableColors
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = DefaultTimestampFormat
|
||||
}
|
||||
if isColored {
|
||||
f.printColored(b, entry, keys, timestampFormat)
|
||||
} else {
|
||||
if !f.DisableTimestamp {
|
||||
f.appendKeyValue(b, "time", entry.Time.Format(timestampFormat))
|
||||
}
|
||||
f.appendKeyValue(b, "level", entry.Level.String())
|
||||
f.appendKeyValue(b, "msg", entry.Message)
|
||||
for _, key := range keys {
|
||||
f.appendKeyValue(b, key, entry.Data[key])
|
||||
}
|
||||
}
|
||||
|
||||
b.WriteByte('\n')
|
||||
return b.Bytes(), nil
|
||||
}
|
||||
|
||||
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
|
||||
var levelColor int
|
||||
switch entry.Level {
|
||||
case DebugLevel:
|
||||
levelColor = gray
|
||||
case WarnLevel:
|
||||
levelColor = yellow
|
||||
case ErrorLevel, FatalLevel, PanicLevel:
|
||||
levelColor = red
|
||||
default:
|
||||
levelColor = blue
|
||||
}
|
||||
|
||||
levelText := strings.ToUpper(entry.Level.String())[0:4]
|
||||
|
||||
if !f.FullTimestamp {
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, miniTS(), entry.Message)
|
||||
} else {
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
|
||||
}
|
||||
for _, k := range keys {
|
||||
v := entry.Data[k]
|
||||
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v)
|
||||
}
|
||||
}
|
||||
|
||||
func needsQuoting(text string) bool {
|
||||
for _, ch := range text {
|
||||
if !((ch >= 'a' && ch <= 'z') ||
|
||||
(ch >= 'A' && ch <= 'Z') ||
|
||||
(ch >= '0' && ch <= '9') ||
|
||||
ch == '-' || ch == '.') {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
|
||||
|
||||
b.WriteString(key)
|
||||
b.WriteByte('=')
|
||||
|
||||
switch value := value.(type) {
|
||||
case string:
|
||||
if needsQuoting(value) {
|
||||
b.WriteString(value)
|
||||
} else {
|
||||
fmt.Fprintf(b, "%q", value)
|
||||
}
|
||||
case error:
|
||||
errmsg := value.Error()
|
||||
if needsQuoting(errmsg) {
|
||||
b.WriteString(errmsg)
|
||||
} else {
|
||||
fmt.Fprintf(b, "%q", value)
|
||||
}
|
||||
default:
|
||||
fmt.Fprint(b, value)
|
||||
}
|
||||
|
||||
b.WriteByte(' ')
|
||||
}
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
package logrus
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"io"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
func (logger *Logger) Writer() *io.PipeWriter {
|
||||
reader, writer := io.Pipe()
|
||||
|
||||
go logger.writerScanner(reader)
|
||||
runtime.SetFinalizer(writer, writerFinalizer)
|
||||
|
||||
return writer
|
||||
}
|
||||
|
||||
func (logger *Logger) writerScanner(reader *io.PipeReader) {
|
||||
scanner := bufio.NewScanner(reader)
|
||||
for scanner.Scan() {
|
||||
logger.Print(scanner.Text())
|
||||
}
|
||||
if err := scanner.Err(); err != nil {
|
||||
logger.Errorf("Error while reading from Writer: %s", err)
|
||||
}
|
||||
reader.Close()
|
||||
}
|
||||
|
||||
func writerFinalizer(writer *io.PipeWriter) {
|
||||
writer.Close()
|
||||
}
|
||||
|
|
@ -2,6 +2,12 @@
|
|||
"comment": "",
|
||||
"ignore": "test",
|
||||
"package": [
|
||||
{
|
||||
"checksumSHA1": "vwpCebe1/Uw4IVvhoCEzrsBoA+E=",
|
||||
"path": "github.com/Sirupsen/logrus",
|
||||
"revision": "418b41d23a1bf978c06faea5313ba194650ac088",
|
||||
"revisionTime": "2015-09-08T20:46:18Z"
|
||||
},
|
||||
{
|
||||
"checksumSHA1": "VjQ5lZ83qa/CH3i1Vmfnsov4FTg=",
|
||||
"path": "github.com/aws/aws-sdk-go/aws",
|
||||
|
|
|
|||
Loading…
Reference in New Issue