mirror of https://github.com/miguelmota/cointop
Convert ct.debuglog() to logrus.Debug()
Simon Roberts
3 years ago
parent
a86077e77e
commit
a73b9ede17
@ -0,0 +1,119 @@
|
||||
package cointop
|
||||
|
||||
import (
|
||||
"math"
|
||||
"sort"
|
||||
)
|
||||
|
||||
func NewPoints() Points {
|
||||
return make(Points, 0)
|
||||
}
|
||||
|
||||
func (ps Points) Downsample(newStep int) Points {
|
||||
if len(ps) == 0 {
|
||||
return []Point{}
|
||||
}
|
||||
|
||||
if !sort.IsSorted(ps) {
|
||||
sort.Sort(ps)
|
||||
}
|
||||
|
||||
if len(ps) == 1 {
|
||||
return []Point{
|
||||
Point{ps[0].Timestamp, ps[0].Value},
|
||||
}
|
||||
}
|
||||
|
||||
start := ps[0].Timestamp
|
||||
end := ps[len(ps)-1].Timestamp
|
||||
|
||||
// 不应该出现这种case
|
||||
if start > end {
|
||||
return []Point{}
|
||||
}
|
||||
|
||||
// 不应该出现这种case
|
||||
if start == end {
|
||||
return []Point{
|
||||
Point{ps[0].Timestamp, ps[0].Value},
|
||||
}
|
||||
}
|
||||
|
||||
res := make([]Point, 0)
|
||||
for t1 := start; t1 <= end; t1 += int64(newStep) {
|
||||
r := ps.avg(t1, t1+int64(newStep), end)
|
||||
res = append(res, Point{t1, r})
|
||||
}
|
||||
|
||||
return res
|
||||
}
|
||||
|
||||
func (ps Points) avg(t1, t2 int64, max int64) float64 {
|
||||
l := len(ps)
|
||||
var (
|
||||
count int = 0
|
||||
sum float64
|
||||
)
|
||||
idx := sort.Search(l, func(i int) bool { return ps[i].Timestamp >= t1 })
|
||||
if idx == l {
|
||||
return math.NaN() // off the right
|
||||
}
|
||||
|
||||
if t2 > max {
|
||||
for _, p := range ps {
|
||||
if p.Timestamp >= ps[idx].Timestamp {
|
||||
if v := float64(p.Value); !math.IsNaN(v) {
|
||||
sum += v
|
||||
count++
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for _, p := range ps {
|
||||
if p.Timestamp >= ps[idx].Timestamp && p.Timestamp < t2 {
|
||||
if v := float64(p.Value); !math.IsNaN(v) {
|
||||
sum += v
|
||||
count++
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if count == 0 {
|
||||
if idx == l-1 {
|
||||
return 100 + ps[idx].Value // off the right
|
||||
}
|
||||
// Attempt to upsample
|
||||
|
||||
// 2021/09/04 12:48:07 XXX OUT 2) 2021-09-01 13:49:37 47039.73
|
||||
// 2021/09/04 12:48:07 XXX OUT 3) 2021-09-01 14:13:39 146969.22
|
||||
// 2021/09/04 12:48:07 XXX OUT 4) 2021-09-01 14:37:41 147103.22
|
||||
// 2021/09/04 12:48:07 XXX OUT 5) 2021-09-01 15:01:43 47170.22
|
||||
// dt =
|
||||
|
||||
// calculate change in value over time
|
||||
left := ps[idx]
|
||||
right := ps[idx+1]
|
||||
dv := right.Value - left.Value
|
||||
dt := right.Timestamp - left.Timestamp
|
||||
dvdt := float64(dv) / float64(dt)
|
||||
|
||||
// calculate midpoint of range
|
||||
mid := (t1 + t2) / 2
|
||||
|
||||
return 100000 + left.Value + float64(mid-left.Timestamp)*dvdt
|
||||
}
|
||||
|
||||
return sum / float64(count)
|
||||
}
|
||||
|
||||
type Points []Point
|
||||
|
||||
type Point struct {
|
||||
Timestamp int64
|
||||
Value float64
|
||||
}
|
||||
|
||||
func (ps Points) Less(i, j int) bool { return ps[i].Timestamp < ps[j].Timestamp }
|
||||
func (ps Points) Swap(i, j int) { ps[i], ps[j] = ps[j], ps[i] }
|
||||
func (ps Points) Len() int { return len(ps) }
|
||||
@ -1,7 +1,9 @@
|
||||
package cointop
|
||||
|
||||
import log "github.com/sirupsen/logrus"
|
||||
|
||||
// RowChanged is called when the row is updated
|
||||
func (ct *Cointop) RowChanged() {
|
||||
ct.debuglog("RowChanged()")
|
||||
log.Debug("RowChanged()")
|
||||
ct.RefreshRowLink()
|
||||
}
|
||||
|
||||
@ -0,0 +1,4 @@
|
||||
logrus
|
||||
vendor
|
||||
|
||||
.idea/
|
||||
@ -0,0 +1,40 @@
|
||||
run:
|
||||
# do not run on test files yet
|
||||
tests: false
|
||||
|
||||
# all available settings of specific linters
|
||||
linters-settings:
|
||||
errcheck:
|
||||
# report about not checking of errors in type assetions: `a := b.(MyStruct)`;
|
||||
# default is false: such cases aren't reported by default.
|
||||
check-type-assertions: false
|
||||
|
||||
# report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
|
||||
# default is false: such cases aren't reported by default.
|
||||
check-blank: false
|
||||
|
||||
lll:
|
||||
line-length: 100
|
||||
tab-width: 4
|
||||
|
||||
prealloc:
|
||||
simple: false
|
||||
range-loops: false
|
||||
for-loops: false
|
||||
|
||||
whitespace:
|
||||
multi-if: false # Enforces newlines (or comments) after every multi-line if statement
|
||||
multi-func: false # Enforces newlines (or comments) after every multi-line function signature
|
||||
|
||||
linters:
|
||||
enable:
|
||||
- megacheck
|
||||
- govet
|
||||
disable:
|
||||
- maligned
|
||||
- prealloc
|
||||
disable-all: false
|
||||
presets:
|
||||
- bugs
|
||||
- unused
|
||||
fast: false
|
||||
@ -0,0 +1,15 @@
|
||||
language: go
|
||||
go_import_path: github.com/sirupsen/logrus
|
||||
git:
|
||||
depth: 1
|
||||
env:
|
||||
- GO111MODULE=on
|
||||
go: 1.15.x
|
||||
os: linux
|
||||
install:
|
||||
- ./travis/install.sh
|
||||
script:
|
||||
- cd ci
|
||||
- go run mage.go -v -w ../ crossBuild
|
||||
- go run mage.go -v -w ../ lint
|
||||
- go run mage.go -v -w ../ test
|
||||
@ -0,0 +1,259 @@
|
||||
# 1.8.1
|
||||
Code quality:
|
||||
* move magefile in its own subdir/submodule to remove magefile dependency on logrus consumer
|
||||
* improve timestamp format documentation
|
||||
|
||||
Fixes:
|
||||
* fix race condition on logger hooks
|
||||
|
||||
|
||||
# 1.8.0
|
||||
|
||||
Correct versioning number replacing v1.7.1.
|
||||
|
||||
# 1.7.1
|
||||
|
||||
Beware this release has introduced a new public API and its semver is therefore incorrect.
|
||||
|
||||
Code quality:
|
||||
* use go 1.15 in travis
|
||||
* use magefile as task runner
|
||||
|
||||
Fixes:
|
||||
* small fixes about new go 1.13 error formatting system
|
||||
* Fix for long time race condiction with mutating data hooks
|
||||
|
||||
Features:
|
||||
* build support for zos
|
||||
|
||||
# 1.7.0
|
||||
Fixes:
|
||||
* the dependency toward a windows terminal library has been removed
|
||||
|
||||
Features:
|
||||
* a new buffer pool management API has been added
|
||||
* a set of `<LogLevel>Fn()` functions have been added
|
||||
|
||||
# 1.6.0
|
||||
Fixes:
|
||||
* end of line cleanup
|
||||
* revert the entry concurrency bug fix whic leads to deadlock under some circumstances
|
||||
* update dependency on go-windows-terminal-sequences to fix a crash with go 1.14
|
||||
|
||||
Features:
|
||||
* add an option to the `TextFormatter` to completely disable fields quoting
|
||||
|
||||
# 1.5.0
|
||||
Code quality:
|
||||
* add golangci linter run on travis
|
||||
|
||||
Fixes:
|
||||
* add mutex for hooks concurrent access on `Entry` data
|
||||
* caller function field for go1.14
|
||||
* fix build issue for gopherjs target
|
||||
|
||||
Feature:
|
||||
* add an hooks/writer sub-package whose goal is to split output on different stream depending on the trace level
|
||||
* add a `DisableHTMLEscape` option in the `JSONFormatter`
|
||||
* add `ForceQuote` and `PadLevelText` options in the `TextFormatter`
|
||||
|
||||
# 1.4.2
|
||||
* Fixes build break for plan9, nacl, solaris
|
||||
# 1.4.1
|
||||
This new release introduces:
|
||||
* Enhance TextFormatter to not print caller information when they are empty (#944)
|
||||
* Remove dependency on golang.org/x/crypto (#932, #943)
|
||||
|
||||
Fixes:
|
||||
* Fix Entry.WithContext method to return a copy of the initial entry (#941)
|
||||
|
||||
# 1.4.0
|
||||
This new release introduces:
|
||||
* Add `DeferExitHandler`, similar to `RegisterExitHandler` but prepending the handler to the list of handlers (semantically like `defer`) (#848).
|
||||
* Add `CallerPrettyfier` to `JSONFormatter` and `TextFormatter` (#909, #911)
|
||||
* Add `Entry.WithContext()` and `Entry.Context`, to set a context on entries to be used e.g. in hooks (#919).
|
||||
|
||||
Fixes:
|
||||
* Fix wrong method calls `Logger.Print` and `Logger.Warningln` (#893).
|
||||
* Update `Entry.Logf` to not do string formatting unless the log level is enabled (#903)
|
||||
* Fix infinite recursion on unknown `Level.String()` (#907)
|
||||
* Fix race condition in `getCaller` (#916).
|
||||
|
||||
|
||||
# 1.3.0
|
||||
This new release introduces:
|
||||
* Log, Logf, Logln functions for Logger and Entry that take a Level
|
||||
|
||||
Fixes:
|
||||
* Building prometheus node_exporter on AIX (#840)
|
||||
* Race condition in TextFormatter (#468)
|
||||
* Travis CI import path (#868)
|
||||
* Remove coloured output on Windows (#862)
|
||||
* Pointer to func as field in JSONFormatter (#870)
|
||||
* Properly marshal Levels (#873)
|
||||
|
||||
# 1.2.0
|
||||
This new release introduces:
|
||||
* A new method `SetReportCaller` in the `Logger` to enable the file, line and calling function from which the trace has been issued
|
||||
* A new trace level named `Trace` whose level is below `Debug`
|
||||
* A configurable exit function to be called upon a Fatal trace
|
||||
* The `Level` object now implements `encoding.TextUnmarshaler` interface
|
||||
|
||||
# 1.1.1
|
||||
This is a bug fix release.
|
||||
* fix the build break on Solaris
|
||||
* don't drop a whole trace in JSONFormatter when a field param is a function pointer which can not be serialized
|
||||
|
||||
# 1.1.0
|
||||
This new release introduces:
|
||||
* several fixes:
|
||||
* a fix for a race condition on entry formatting
|
||||
* proper cleanup of previously used entries before putting them back in the pool
|
||||
* the extra new line at the end of message in text formatter has been removed
|
||||
* a new global public API to check if a level is activated: IsLevelEnabled
|
||||
* the following methods have been added to the Logger object
|
||||
* IsLevelEnabled
|
||||
* SetFormatter
|
||||
* SetOutput
|
||||
* ReplaceHooks
|
||||
* introduction of go module
|
||||
* an indent configuration for the json formatter
|
||||
* output colour support for windows
|
||||
* the field sort function is now configurable for text formatter
|
||||
* the CLICOLOR and CLICOLOR\_FORCE environment variable support in text formater
|
||||
|
||||
# 1.0.6
|
||||
|
||||
This new release introduces:
|
||||
* a new api WithTime which allows to easily force the time of the log entry
|
||||
which is mostly useful for logger wrapper
|
||||
* a fix reverting the immutability of the entry given as parameter to the hooks
|
||||
a new configuration field of the json formatter in order to put all the fields
|
||||
in a nested dictionnary
|
||||
* a new SetOutput method in the Logger
|
||||
* a new configuration of the textformatter to configure the name of the default keys
|
||||
* a new configuration of the text formatter to disable the level truncation
|
||||
|
||||
# 1.0.5
|
||||
|
||||
* Fix hooks race (#707)
|
||||
* Fix panic deadlock (#695)
|
||||
|
||||
# 1.0.4
|
||||
|
||||
* Fix race when adding hooks (#612)
|
||||
* Fix terminal check in AppEngine (#635)
|
||||
|
||||
# 1.0.3
|
||||
|
||||
* Replace example files with testable examples
|
||||
|
||||
# 1.0.2
|
||||
|
||||
* bug: quote non-string values in text formatter (#583)
|
||||
* Make (*Logger) SetLevel a public method
|
||||
|
||||
# 1.0.1
|
||||
|
||||
* bug: fix escaping in text formatter (#575)
|
||||
|
||||
# 1.0.0
|
||||
|
||||
* Officially changed name to lower-case
|
||||
* bug: colors on Windows 10 (#541)
|
||||
* bug: fix race in accessing level (#512)
|
||||
|
||||
# 0.11.5
|
||||
|
||||
* feature: add writer and writerlevel to entry (#372)
|
||||
|
||||
# 0.11.4
|
||||
|
||||
* bug: fix undefined variable on solaris (#493)
|
||||
|
||||
# 0.11.3
|
||||
|
||||
* formatter: configure quoting of empty values (#484)
|
||||
* formatter: configure quoting character (default is `"`) (#484)
|
||||
* bug: fix not importing io correctly in non-linux environments (#481)
|
||||
|
||||
# 0.11.2
|
||||
|
||||
* bug: fix windows terminal detection (#476)
|
||||
|
||||
# 0.11.1
|
||||
|
||||
* bug: fix tty detection with custom out (#471)
|
||||
|
||||
# 0.11.0
|
||||
|
||||
* performance: Use bufferpool to allocate (#370)
|
||||
* terminal: terminal detection for app-engine (#343)
|
||||
* feature: exit handler (#375)
|
||||
|
||||
# 0.10.0
|
||||
|
||||
* feature: Add a test hook (#180)
|
||||
* feature: `ParseLevel` is now case-insensitive (#326)
|
||||
* feature: `FieldLogger` interface that generalizes `Logger` and `Entry` (#308)
|
||||
* performance: avoid re-allocations on `WithFields` (#335)
|
||||
|
||||
# 0.9.0
|
||||
|
||||
* logrus/text_formatter: don't emit empty msg
|
||||
* logrus/hooks/airbrake: move out of main repository
|
||||
* logrus/hooks/sentry: move out of main repository
|
||||
* logrus/hooks/papertrail: move out of main repository
|
||||
* logrus/hooks/bugsnag: move out of main repository
|
||||
* logrus/core: run tests with `-race`
|
||||
* logrus/core: detect TTY based on `stderr`
|
||||
* logrus/core: support `WithError` on logger
|
||||
* logrus/core: Solaris support
|
||||
|
||||
# 0.8.7
|
||||
|
||||
* logrus/core: fix possible race (#216)
|
||||
* logrus/doc: small typo fixes and doc improvements
|
||||
|
||||
|
||||
# 0.8.6
|
||||
|
||||
* hooks/raven: allow passing an initialized client
|
||||
|
||||
# 0.8.5
|
||||
|
||||
* logrus/core: revert #208
|
||||
|
||||
# 0.8.4
|
||||
|
||||
* formatter/text: fix data race (#218)
|
||||
|
||||
# 0.8.3
|
||||
|
||||
* logrus/core: fix entry log level (#208)
|
||||
* logrus/core: improve performance of text formatter by 40%
|
||||
* logrus/core: expose `LevelHooks` type
|
||||
* logrus/core: add support for DragonflyBSD and NetBSD
|
||||
* formatter/text: print structs more verbosely
|
||||
|
||||
# 0.8.2
|
||||
|
||||
* logrus: fix more Fatal family functions
|
||||
|
||||
# 0.8.1
|
||||
|
||||
* logrus: fix not exiting on `Fatalf` and `Fatalln`
|
||||
|
||||
# 0.8.0
|
||||
|
||||
* logrus: defaults to stderr instead of stdout
|
||||
* hooks/sentry: add special field for `*http.Request`
|
||||
* formatter/text: ignore Windows for colors
|
||||
|
||||
# 0.7.3
|
||||
|
||||
* formatter/\*: allow configuration of timestamp layout
|
||||
|
||||
# 0.7.2
|
||||
|
||||
* formatter/text: Add configuration option for time format (#158)
|
||||
@ -0,0 +1,21 @@
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2014 Simon Eskildsen
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
@ -0,0 +1,513 @@
|
||||
# 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) [](https://godoc.org/github.com/sirupsen/logrus)
|
||||
|
||||
Logrus is a structured logger for Go (golang), completely API compatible with
|
||||
the standard library logger.
|
||||
|
||||
**Logrus is in maintenance-mode.** We will not be introducing new features. It's
|
||||
simply too hard to do in a way that won't break many people's projects, which is
|
||||
the last thing you want from your Logging library (again...).
|
||||
|
||||
This does not mean Logrus is dead. Logrus will continue to be maintained for
|
||||
security, (backwards compatible) bug fixes, and performance (where we are
|
||||
limited by the interface).
|
||||
|
||||
I believe Logrus' biggest contribution is to have played a part in today's
|
||||
widespread use of structured logging in Golang. There doesn't seem to be a
|
||||
reason to do a major, breaking iteration into Logrus V2, since the fantastic Go
|
||||
community has built those independently. Many fantastic alternatives have sprung
|
||||
up. Logrus would look like those, had it been re-designed with what we know
|
||||
about structured logging in Go today. Check out, for example,
|
||||
[Zerolog][zerolog], [Zap][zap], and [Apex][apex].
|
||||
|
||||
[zerolog]: https://github.com/rs/zerolog
|
||||
[zap]: https://github.com/uber-go/zap
|
||||
[apex]: https://github.com/apex/log
|
||||
|
||||
**Seeing weird case-sensitive problems?** It's in the past been possible to
|
||||
import Logrus as both upper- and lower-case. Due to the Go package environment,
|
||||
this caused issues in the community and we needed a standard. Some environments
|
||||
experienced problems with the upper-case variant, so the lower-case was decided.
|
||||
Everything using `logrus` will need to use the lower-case:
|
||||
`github.com/sirupsen/logrus`. Any package that isn't, should be changed.
|
||||
|
||||
To fix Glide, see [these
|
||||
comments](https://github.com/sirupsen/logrus/issues/553#issuecomment-306591437).
|
||||
For an in-depth explanation of the casing issue, see [this
|
||||
comment](https://github.com/sirupsen/logrus/issues/570#issuecomment-313933276).
|
||||
|
||||
Nicely color-coded in development (when a TTY is attached, otherwise just
|
||||
plain text):
|
||||
|
||||
|
||||
|
||||
With `log.SetFormatter(&log.JSONFormatter{})`, for easy parsing by logstash
|
||||
or Splunk:
|
||||
|
||||
```json
|
||||
{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
|
||||
ocean","size":10,"time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
|
||||
|
||||
{"level":"warning","msg":"The group's number increased tremendously!",
|
||||
"number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297 -0400 EDT"}
|
||||
|
||||
{"animal":"walrus","level":"info","msg":"A giant walrus appears!",
|
||||
"size":10,"time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
|
||||
|
||||
{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the ocean.",
|
||||
"size":9,"time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
|
||||
|
||||
{"level":"fatal","msg":"The ice breaks!","number":100,"omg":true,
|
||||
"time":"2014-03-10 19:57:38.562543128 -0400 EDT"}
|
||||
```
|
||||
|
||||
With the default `log.SetFormatter(&log.TextFormatter{})` when a TTY is not
|
||||
attached, the output is compatible with the
|
||||
[logfmt](http://godoc.org/github.com/kr/logfmt) format:
|
||||
|
||||
```text
|
||||
time="2015-03-26T01:27:38-04:00" level=debug msg="Started observing beach" animal=walrus number=8
|
||||
time="2015-03-26T01:27:38-04:00" level=info msg="A group of walrus emerges from the ocean" animal=walrus size=10
|
||||
time="2015-03-26T01:27:38-04:00" level=warning msg="The group's number increased tremendously!" number=122 omg=true
|
||||
time="2015-03-26T01:27:38-04:00" level=debug msg="Temperature changes" temperature=-4
|
||||
time="2015-03-26T01:27:38-04:00" level=panic msg="It's over 9000!" animal=orca size=9009
|
||||
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
|
||||
```
|
||||
To ensure this behaviour even if a TTY is attached, set your formatter as follows:
|
||||
|
||||
```go
|
||||
log.SetFormatter(&log.TextFormatter{
|
||||
DisableColors: true,
|
||||
FullTimestamp: true,
|
||||
})
|
||||
```
|
||||
|
||||
#### Logging Method Name
|
||||
|
||||
If you wish to add the calling method as a field, instruct the logger via:
|
||||
```go
|
||||
log.SetReportCaller(true)
|
||||
```
|
||||
This adds the caller as 'method' like so:
|
||||
|
||||
```json
|
||||
{"animal":"penguin","level":"fatal","method":"github.com/sirupsen/arcticcreatures.migrate","msg":"a penguin swims by",
|
||||
"time":"2014-03-10 19:57:38.562543129 -0400 EDT"}
|
||||
```
|
||||
|
||||
```text
|
||||
time="2015-03-26T01:27:38-04:00" level=fatal method=github.com/sirupsen/arcticcreatures.migrate msg="a penguin swims by" animal=penguin
|
||||
```
|
||||
Note that this does add measurable overhead - the cost will depend on the version of Go, but is
|
||||
between 20 and 40% in recent tests with 1.6 and 1.7. You can validate this in your
|
||||
environment via benchmarks:
|
||||
```
|
||||
go test -bench=.*CallerTracing
|
||||
```
|
||||
|
||||
|
||||
#### Case-sensitivity
|
||||
|
||||
The organization's name was changed to lower-case--and this will not be changed
|
||||
back. If you are getting import conflicts due to case sensitivity, please use
|
||||
the lower-case import: `github.com/sirupsen/logrus`.
|
||||
|
||||
#### Example
|
||||
|
||||
The simplest way to use Logrus is simply the package-level exported logger:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
}).Info("A walrus appears")
|
||||
}
|
||||
```
|
||||
|
||||
Note that it's completely api-compatible with the stdlib logger, so you can
|
||||
replace your `log` imports everywhere with `log "github.com/sirupsen/logrus"`
|
||||
and you'll now have the flexibility of Logrus. You can customize it all you
|
||||
want:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func init() {
|
||||
// Log as JSON instead of the default ASCII formatter.
|
||||
log.SetFormatter(&log.JSONFormatter{})
|
||||
|
||||
// Output to stdout instead of the default stderr
|
||||
// Can be any io.Writer, see below for File example
|
||||
log.SetOutput(os.Stdout)
|
||||
|
||||
// Only log the warning severity or above.
|
||||
log.SetLevel(log.WarnLevel)
|
||||
}
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
|
||||
log.WithFields(log.Fields{
|
||||
"omg": true,
|
||||
"number": 122,
|
||||
}).Warn("The group's number increased tremendously!")
|
||||
|
||||
log.WithFields(log.Fields{
|
||||
"omg": true,
|
||||
"number": 100,
|
||||
}).Fatal("The ice breaks!")
|
||||
|
||||
// A common pattern is to re-use fields between logging statements by re-using
|
||||
// the logrus.Entry returned from WithFields()
|
||||
contextLogger := log.WithFields(log.Fields{
|
||||
"common": "this is a common field",
|
||||
"other": "I also should be logged always",
|
||||
})
|
||||
|
||||
contextLogger.Info("I'll be logged with common and other field")
|
||||
contextLogger.Info("Me too")
|
||||
}
|
||||
```
|
||||
|
||||
For more advanced usage such as logging to multiple locations from the same
|
||||
application, you can also create an instance of the `logrus` Logger:
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
// Create a new instance of the logger. You can have any number of instances.
|
||||
var log = logrus.New()
|
||||
|
||||
func main() {
|
||||
// The API for setting attributes is a little different than the package level
|
||||
// exported logger. See Godoc.
|
||||
log.Out = os.Stdout
|
||||
|
||||
// You could set this to any `io.Writer` such as a file
|
||||
// file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
|
||||
// if err == nil {
|
||||
// log.Out = file
|
||||
// } else {
|
||||
// log.Info("Failed to log to file, using default stderr")
|
||||
// }
|
||||
|
||||
log.WithFields(logrus.Fields{
|
||||
"animal": "walrus",
|
||||
"size": 10,
|
||||
}).Info("A group of walrus emerges from the ocean")
|
||||
}
|
||||
```
|
||||
|
||||
#### Fields
|
||||
|
||||
Logrus encourages careful, structured logging through logging fields instead of
|
||||
long, unparseable error messages. For example, instead of: `log.Fatalf("Failed
|
||||
to send event %s to topic %s with key %d")`, you should log the much more
|
||||
discoverable:
|
||||
|
||||
```go
|
||||
log.WithFields(log.Fields{
|
||||
"event": event,
|
||||
"topic": topic,
|
||||
"key": key,
|
||||
}).Fatal("Failed to send event")
|
||||
```
|
||||
|
||||
We've found this API forces you to think about logging in a way that produces
|
||||
much more useful logging messages. We've been in countless situations where just
|
||||
a single added field to a log statement that was already there would've saved us
|
||||
hours. The `WithFields` call is optional.
|
||||
|
||||
In general, with Logrus using any of the `printf`-family functions should be
|
||||
seen as a hint you should add a field, however, you can still use the
|
||||
`printf`-family functions with Logrus.
|
||||
|
||||
#### Default Fields
|
||||
|
||||
Often it's helpful to have fields _always_ attached to log statements in an
|
||||
application or parts of one. For example, you may want to always log the
|
||||
`request_id` and `user_ip` in the context of a request. Instead of writing
|
||||
`log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})` on
|
||||
every line, you can create a `logrus.Entry` to pass around instead:
|
||||
|
||||
```go
|
||||
requestLogger := log.WithFields(log.Fields{"request_id": request_id, "user_ip": user_ip})
|
||||
requestLogger.Info("something happened on that request") # will log request_id and user_ip
|
||||
requestLogger.Warn("something not great happened")
|
||||
```
|
||||
|
||||
#### Hooks
|
||||
|
||||
You can add hooks for logging levels. For example to send errors to an exception
|
||||
tracking service on `Error`, `Fatal` and `Panic`, info to StatsD or log to
|
||||
multiple places simultaneously, e.g. syslog.
|
||||
|
||||
Logrus comes with [built-in hooks](hooks/). Add those, or your custom hook, in
|
||||
`init`:
|
||||
|
||||
```go
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
"gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "airbrake"
|
||||
logrus_syslog "github.com/sirupsen/logrus/hooks/syslog"
|
||||
"log/syslog"
|
||||
)
|
||||
|
||||
func init() {
|
||||
|
||||
// Use the Airbrake hook to report errors that have Error severity or above to
|
||||
// an exception tracker. You can create custom hooks, see the Hooks section.
|
||||
log.AddHook(airbrake.NewHook(123, "xyz", "production"))
|
||||
|
||||
hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "")
|
||||
if err != nil {
|
||||
log.Error("Unable to connect to local syslog daemon")
|
||||
} else {
|
||||
log.AddHook(hook)
|
||||
}
|
||||
}
|
||||
```
|
||||
Note: Syslog hook also support connecting to local syslog (Ex. "/dev/log" or "/var/run/syslog" or "/var/run/log"). For the detail, please check the [syslog hook README](hooks/syslog/README.md).
|
||||
|
||||
A list of currently known service hooks can be found in this wiki [page](https://github.com/sirupsen/logrus/wiki/Hooks)
|
||||
|
||||
|
||||
#### Level logging
|
||||
|
||||
Logrus has seven logging levels: Trace, Debug, Info, Warning, Error, Fatal and Panic.
|
||||
|
||||
```go
|
||||
log.Trace("Something very low level.")
|
||||
log.Debug("Useful debugging information.")
|
||||
log.Info("Something noteworthy happened!")
|
||||
log.Warn("You should probably take a look at this.")
|
||||
log.Error("Something failed but I'm not quitting.")
|
||||
// Calls os.Exit(1) after logging
|
||||
log.Fatal("Bye.")
|
||||
// Calls panic() after logging
|
||||
log.Panic("I'm bailing.")
|
||||
```
|
||||
|
||||
You can set the logging level on a `Logger`, then it will only log entries with
|
||||
that severity or anything above it:
|
||||
|
||||
```go
|
||||
// Will log anything that is info or above (warn, error, fatal, panic). Default.
|
||||
log.SetLevel(log.InfoLevel)
|
||||
```
|
||||
|
||||
It may be useful to set `log.Level = logrus.DebugLevel` in a debug or verbose
|
||||
environment if your application has that.
|
||||
|
||||
#### Entries
|
||||
|
||||
Besides the fields added with `WithField` or `WithFields` some fields are
|
||||
automatically added to all logging events:
|
||||
|
||||
1. `time`. The timestamp when the entry was created.
|
||||
2. `msg`. The logging message passed to `{Info,Warn,Error,Fatal,Panic}` after
|
||||
the `AddFields` call. E.g. `Failed to send event.`
|
||||
3. `level`. The logging level. E.g. `info`.
|
||||
|
||||
#### Environments
|
||||
|
||||
Logrus has no notion of environment.
|
||||
|
||||
If you wish for hooks and formatters to only be used in specific environments,
|
||||
you should handle that yourself. For example, if your application has a global
|
||||
variable `Environment`, which is a string representation of the environment you
|
||||
could do:
|
||||
|
||||
```go
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
init() {
|
||||
// do something here to set environment depending on an environment variable
|
||||
// or command-line flag
|
||||
if Environment == "production" {
|
||||
log.SetFormatter(&log.JSONFormatter{})
|
||||
} else {
|
||||
// The TextFormatter is default, you don't actually have to do this.
|
||||
log.SetFormatter(&log.TextFormatter{})
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
This configuration is how `logrus` was intended to be used, but JSON in
|
||||
production is mostly only useful if you do log aggregation with tools like
|
||||
Splunk or Logstash.
|
||||
|
||||
#### Formatters
|
||||
|
||||
The built-in logging formatters are:
|
||||
|
||||
* `logrus.TextFormatter`. Logs the event in colors if stdout is a tty, otherwise
|
||||
without colors.
|
||||
* *Note:* to force colored output when there is no TTY, set the `ForceColors`
|
||||
field to `true`. To force no colored output even if there is a TTY set the
|
||||
`DisableColors` field to `true`. For Windows, see
|
||||
[github.com/mattn/go-colorable](https://github.com/mattn/go-colorable).
|
||||
* When colors are enabled, levels are truncated to 4 characters by default. To disable
|
||||
truncation set the `DisableLevelTruncation` field to `true`.
|
||||
* When outputting to a TTY, it's often helpful to visually scan down a column where all the levels are the same width. Setting the `PadLevelText` field to `true` enables this behavior, by adding padding to the level text.
|
||||
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#TextFormatter).
|
||||
* `logrus.JSONFormatter`. Logs fields as JSON.
|
||||
* All options are listed in the [generated docs](https://godoc.org/github.com/sirupsen/logrus#JSONFormatter).
|
||||
|
||||
Third party logging formatters:
|
||||
|
||||
* [`FluentdFormatter`](https://github.com/joonix/log). Formats entries that can be parsed by Kubernetes and Google Container Engine.
|
||||
* [`GELF`](https://github.com/fabienm/go-logrus-formatters). Formats entries so they comply to Graylog's [GELF 1.1 specification](http://docs.graylog.org/en/2.4/pages/gelf.html).
|
||||
* [`logstash`](https://github.com/bshuster-repo/logrus-logstash-hook). Logs fields as [Logstash](http://logstash.net) Events.
|
||||
* [`prefixed`](https://github.com/x-cray/logrus-prefixed-formatter). Displays log entry source along with alternative layout.
|
||||
* [`zalgo`](https://github.com/aybabtme/logzalgo). Invoking the Power of Zalgo.
|
||||
* [`nested-logrus-formatter`](https://github.com/antonfisher/nested-logrus-formatter). Converts logrus fields to a nested structure.
|
||||
* [`powerful-logrus-formatter`](https://github.com/zput/zxcTool). get fileName, log's line number and the latest function's name when print log; Sava log to files.
|
||||
* [`caption-json-formatter`](https://github.com/nolleh/caption_json_formatter). logrus's message json formatter with human-readable caption added.
|
||||
|
||||
You can define your formatter by implementing the `Formatter` interface,
|
||||
requiring a `Format` method. `Format` takes an `*Entry`. `entry.Data` is a
|
||||
`Fields` type (`map[string]interface{}`) with all your fields as well as the
|
||||
default ones (see Entries section above):
|
||||
|
||||
```go
|
||||
type MyJSONFormatter struct {
|
||||
}
|
||||
|
||||
log.SetFormatter(new(MyJSONFormatter))
|
||||
|
||||
func (f *MyJSONFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
// Note this doesn't include Time, Level and Message which are available on
|
||||
// the Entry. Consult `godoc` on information about those fields or read the
|
||||
// source of the official loggers.
|
||||
serialized, err := json.Marshal(entry.Data)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("Failed to marshal fields to JSON, %w", err)
|
||||
}
|
||||
return append(serialized, '\n'), nil
|
||||
}
|
||||
```
|
||||
|
||||
#### Logger as an `io.Writer`
|
||||
|
||||
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.
|
||||
|
||||
```go
|
||||
w := logger.Writer()
|
||||
defer w.Close()
|
||||
|
||||
srv := http.Server{
|
||||
// create a stdlib log.Logger that writes to
|
||||
// logrus.Logger.
|
||||
ErrorLog: log.New(w, "", 0),
|
||||
}
|
||||
```
|
||||
|
||||
Each line written to that writer will be printed the usual way, using formatters
|
||||
and hooks. The level for those entries is `info`.
|
||||
|
||||
This means that we can override the standard library logger easily:
|
||||
|
||||
```go
|
||||
logger := logrus.New()
|
||||
logger.Formatter = &logrus.JSONFormatter{}
|
||||
|
||||
// Use logrus for standard log output
|
||||
// Note that `log` here references stdlib's log
|
||||
// Not logrus imported under the name `log`.
|
||||
log.SetOutput(logger.Writer())
|
||||
```
|
||||
|
||||
#### Rotation
|
||||
|
||||
Log rotation is not provided with Logrus. Log rotation should be done by an
|
||||
external program (like `logrotate(8)`) that can compress and delete old log
|
||||
entries. It should not be a feature of the application-level logger.
|
||||
|
||||
#### Tools
|
||||
|
||||
| Tool | Description |
|
||||
| ---- | ----------- |
|
||||
|[Logrus Mate](https://github.com/gogap/logrus_mate)|Logrus mate is a tool for Logrus to manage loggers, you can initial logger's level, hook and formatter by config file, the logger will be generated with different configs in different environments.|
|
||||
|[Logrus Viper Helper](https://github.com/heirko/go-contrib/tree/master/logrusHelper)|An Helper around Logrus to wrap with spf13/Viper to load configuration with fangs! And to simplify Logrus configuration use some behavior of [Logrus Mate](https://github.com/gogap/logrus_mate). [sample](https://github.com/heirko/iris-contrib/blob/master/middleware/logrus-logger/example) |
|
||||
|
||||
#### Testing
|
||||
|
||||
Logrus has a built in facility for asserting the presence of log messages. This is implemented through the `test` hook and provides:
|
||||
|
||||
* decorators for existing logger (`test.NewLocal` and `test.NewGlobal`) which basically just adds the `test` hook
|
||||
* a test logger (`test.NewNullLogger`) that just records log messages (and does not output any):
|
||||
|
||||
```go
|
||||
import(
|
||||
"github.com/sirupsen/logrus"
|
||||
"github.com/sirupsen/logrus/hooks/test"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestSomething(t*testing.T){
|
||||
logger, hook := test.NewNullLogger()
|
||||
logger.Error("Helloerror")
|
||||
|
||||
assert.Equal(t, 1, len(hook.Entries))
|
||||
assert.Equal(t, logrus.ErrorLevel, hook.LastEntry().Level)
|
||||
assert.Equal(t, "Helloerror", hook.LastEntry().Message)
|
||||
|
||||
hook.Reset()
|
||||
assert.Nil(t, hook.LastEntry())
|
||||
}
|
||||
```
|
||||
|
||||
#### Fatal handlers
|
||||
|
||||
Logrus can register one or more functions that will be called when any `fatal`
|
||||
level message is logged. The registered handlers will be executed before
|
||||
logrus performs an `os.Exit(1)`. This behavior may be helpful if callers need
|
||||
to gracefully shutdown. Unlike a `panic("Something went wrong...")` call which can be intercepted with a deferred `recover` a call to `os.Exit(1)` can not be intercepted.
|
||||
|
||||
```
|
||||
...
|
||||
handler := func() {
|
||||
// gracefully shutdown something...
|
||||
}
|
||||
logrus.RegisterExitHandler(handler)
|
||||
...
|
||||
```
|
||||
|
||||
#### Thread safety
|
||||
|
||||
By default, Logger is protected by a mutex for concurrent writes. The mutex is held when calling hooks and writing logs.
|
||||
If you are sure such locking is not needed, you can call logger.SetNoLock() to disable the locking.
|
||||
|
||||
Situation when locking is not needed includes:
|
||||
|
||||
* You have no hooks registered, or hooks calling is already thread-safe.
|
||||
|
||||
* Writing to logger.Out is already thread-safe, for example:
|
||||
|
||||
1) logger.Out is protected by locks.
|
||||
|
||||
2) logger.Out is an os.File handler opened with `O_APPEND` flag, and every write is smaller than 4k. (This allows multi-thread/multi-process writing)
|
||||
|
||||
(Refer to http://www.notthewizard.com/2014/06/17/are-files-appends-really-atomic/)
|
||||
@ -0,0 +1,76 @@
|
||||
package logrus
|
||||
|
||||
// The following code was sourced and modified from the
|
||||
// https://github.com/tebeka/atexit package governed by the following license:
|
||||
//
|
||||
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
// this software and associated documentation files (the "Software"), to deal in
|
||||
// the Software without restriction, including without limitation the rights to
|
||||
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
// the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
// subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in all
|
||||
// copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
)
|
||||
|
||||
var handlers = []func(){}
|
||||
|
||||
func runHandler(handler func()) {
|
||||
defer func() {
|
||||
if err := recover(); err != nil {
|
||||
fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
|
||||
}
|
||||
}()
|
||||
|
||||
handler()
|
||||
}
|
||||
|
||||
func runHandlers() {
|
||||
for _, handler := range handlers {
|
||||
runHandler(handler)
|
||||
}
|
||||
}
|
||||
|
||||
// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
|
||||
func Exit(code int) {
|
||||
runHandlers()
|
||||
os.Exit(code)
|
||||
}
|
||||
|
||||
// RegisterExitHandler appends a Logrus Exit handler to the list of handlers,
|
||||
// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
|
||||
// any Fatal log entry is made.
|
||||
//
|
||||
// This method is useful when a caller wishes to use logrus to log a fatal
|
||||
// message but also needs to gracefully shutdown. An example usecase could be
|
||||
// closing database connections, or sending a alert that the application is
|
||||
// closing.
|
||||
func RegisterExitHandler(handler func()) {
|
||||
handlers = append(handlers, handler)
|
||||
}
|
||||
|
||||
// DeferExitHandler prepends a Logrus Exit handler to the list of handlers,
|
||||
// call logrus.Exit to invoke all handlers. The handlers will also be invoked when
|
||||
// any Fatal log entry is made.
|
||||
//
|
||||
// This method is useful when a caller wishes to use logrus to log a fatal
|
||||
// message but also needs to gracefully shutdown. An example usecase could be
|
||||
// closing database connections, or sending a alert that the application is
|
||||
// closing.
|
||||
func DeferExitHandler(handler func()) {
|
||||
handlers = append([]func(){handler}, handlers...)
|
||||
}
|
||||
@ -0,0 +1,14 @@
|
||||
version: "{build}"
|
||||
platform: x64
|
||||
clone_folder: c:\gopath\src\github.com\sirupsen\logrus
|
||||
environment:
|
||||
GOPATH: c:\gopath
|
||||
branches:
|
||||
only:
|
||||
- master
|
||||
install:
|
||||
- set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
|
||||
- go version
|
||||
build_script:
|
||||
- go get -t
|
||||
- go test
|
||||
@ -0,0 +1,52 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"sync"
|
||||
)
|
||||
|
||||
var (
|
||||
bufferPool BufferPool
|
||||
)
|
||||
|
||||
type BufferPool interface {
|
||||
Put(*bytes.Buffer)
|
||||
Get() *bytes.Buffer
|
||||
}
|
||||
|
||||
type defaultPool struct {
|
||||
pool *sync.Pool
|
||||
}
|
||||
|
||||
func (p *defaultPool) Put(buf *bytes.Buffer) {
|
||||
p.pool.Put(buf)
|
||||
}
|
||||
|
||||
func (p *defaultPool) Get() *bytes.Buffer {
|
||||
return p.pool.Get().(*bytes.Buffer)
|
||||
}
|
||||
|
||||
func getBuffer() *bytes.Buffer {
|
||||
return bufferPool.Get()
|
||||
}
|
||||
|
||||
func putBuffer(buf *bytes.Buffer) {
|
||||
buf.Reset()
|
||||
bufferPool.Put(buf)
|
||||
}
|
||||
|
||||
// SetBufferPool allows to replace the default logrus buffer pool
|
||||
// to better meets the specific needs of an application.
|
||||
func SetBufferPool(bp BufferPool) {
|
||||
bufferPool = bp
|
||||
}
|
||||
|
||||
func init() {
|
||||
SetBufferPool(&defaultPool{
|
||||
pool: &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return new(bytes.Buffer)
|
||||
},
|
||||
},
|
||||
})
|
||||
}
|
||||
@ -0,0 +1,26 @@
|
||||
/*
|
||||
Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
|
||||
|
||||
|
||||
The simplest way to use Logrus is simply the package-level exported logger:
|
||||
|
||||
package main
|
||||
|
||||
import (
|
||||
log "github.com/sirupsen/logrus"
|
||||
)
|
||||
|
||||
func main() {
|
||||
log.WithFields(log.Fields{
|
||||
"animal": "walrus",
|
||||
"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 +1,431 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"fmt"
|
||||
"os"
|
||||
"reflect"
|
||||
"runtime"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
var (
|
||||
|
||||
// qualified package name, cached at first use
|
||||
logrusPackage string
|
||||
|
||||
// Positions in the call stack when tracing to report the calling method
|
||||
minimumCallerDepth int
|
||||
|
||||
// Used for caller information initialisation
|
||||
callerInitOnce sync.Once
|
||||
)
|
||||
|
||||
const (
|
||||
maximumCallerDepth int = 25
|
||||
knownLogrusFrames int = 4
|
||||
)
|
||||
|
||||
func init() {
|
||||
// start at the bottom of the stack before the package-name cache is primed
|
||||
minimumCallerDepth = 1
|
||||
}
|
||||
|
||||
// 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 Trace, 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: Trace, Debug, Info, Warn, Error, Fatal or Panic
|
||||
// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
|
||||
Level Level
|
||||
|
||||
// Calling method, with package name
|
||||
Caller *runtime.Frame
|
||||
|
||||
// Message passed to Trace, Debug, Info, Warn, Error, Fatal or Panic
|
||||
Message string
|
||||
|
||||
// When formatter is called in entry.log(), a Buffer may be set to entry
|
||||
Buffer *bytes.Buffer
|
||||
|
||||
// Contains the context set by the user. Useful for hook processing etc.
|
||||
Context context.Context
|
||||
|
||||
// err may contain a field formatting error
|
||||
err string
|
||||
}
|
||||
|
||||
func NewEntry(logger *Logger) *Entry {
|
||||
return &Entry{
|
||||
Logger: logger,
|
||||
// Default is three fields, plus one optional. Give a little extra room.
|
||||
Data: make(Fields, 6),
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Dup() *Entry {
|
||||
data := make(Fields, len(entry.Data))
|
||||
for k, v := range entry.Data {
|
||||
data[k] = v
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, Context: entry.Context, err: entry.err}
|
||||
}
|
||||
|
||||
// Returns the bytes representation of this entry from the formatter.
|
||||
func (entry *Entry) Bytes() ([]byte, error) {
|
||||
return entry.Logger.Formatter.Format(entry)
|
||||
}
|
||||
|
||||
// Returns the string representation from the reader and ultimately the
|
||||
// formatter.
|
||||
func (entry *Entry) String() (string, error) {
|
||||
serialized, err := entry.Bytes()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
str := string(serialized)
|
||||
return str, nil
|
||||
}
|
||||
|
||||
// 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 context to the Entry.
|
||||
func (entry *Entry) WithContext(ctx context.Context) *Entry {
|
||||
dataCopy := make(Fields, len(entry.Data))
|
||||
for k, v := range entry.Data {
|
||||
dataCopy[k] = v
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: dataCopy, Time: entry.Time, err: entry.err, Context: ctx}
|
||||
}
|
||||
|
||||
// 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 := make(Fields, len(entry.Data)+len(fields))
|
||||
for k, v := range entry.Data {
|
||||
data[k] = v
|
||||
}
|
||||
fieldErr := entry.err
|
||||
for k, v := range fields {
|
||||
isErrField := false
|
||||
if t := reflect.TypeOf(v); t != nil {
|
||||
switch {
|
||||
case t.Kind() == reflect.Func, t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Func:
|
||||
isErrField = true
|
||||
}
|
||||
}
|
||||
if isErrField {
|
||||
tmp := fmt.Sprintf("can not add field %q", k)
|
||||
if fieldErr != "" {
|
||||
fieldErr = entry.err + ", " + tmp
|
||||
} else {
|
||||
fieldErr = tmp
|
||||
}
|
||||
} else {
|
||||
data[k] = v
|
||||
}
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time, err: fieldErr, Context: entry.Context}
|
||||
}
|
||||
|
||||
// Overrides the time of the Entry.
|
||||
func (entry *Entry) WithTime(t time.Time) *Entry {
|
||||
dataCopy := make(Fields, len(entry.Data))
|
||||
for k, v := range entry.Data {
|
||||
dataCopy[k] = v
|
||||
}
|
||||
return &Entry{Logger: entry.Logger, Data: dataCopy, Time: t, err: entry.err, Context: entry.Context}
|
||||
}
|
||||
|
||||
// getPackageName reduces a fully qualified function name to the package name
|
||||
// There really ought to be to be a better way...
|
||||
func getPackageName(f string) string {
|
||||
for {
|
||||
lastPeriod := strings.LastIndex(f, ".")
|
||||
lastSlash := strings.LastIndex(f, "/")
|
||||
if lastPeriod > lastSlash {
|
||||
f = f[:lastPeriod]
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
return f
|
||||
}
|
||||
|
||||
// getCaller retrieves the name of the first non-logrus calling function
|
||||
func getCaller() *runtime.Frame {
|
||||
// cache this package's fully-qualified name
|
||||
callerInitOnce.Do(func() {
|
||||
pcs := make([]uintptr, maximumCallerDepth)
|
||||
_ = runtime.Callers(0, pcs)
|
||||
|
||||
// dynamic get the package name and the minimum caller depth
|
||||
for i := 0; i < maximumCallerDepth; i++ {
|
||||
funcName := runtime.FuncForPC(pcs[i]).Name()
|
||||
if strings.Contains(funcName, "getCaller") {
|
||||
logrusPackage = getPackageName(funcName)
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
minimumCallerDepth = knownLogrusFrames
|
||||
})
|
||||
|
||||
// Restrict the lookback frames to avoid runaway lookups
|
||||
pcs := make([]uintptr, maximumCallerDepth)
|
||||
depth := runtime.Callers(minimumCallerDepth, pcs)
|
||||
frames := runtime.CallersFrames(pcs[:depth])
|
||||
|
||||
for f, again := frames.Next(); again; f, again = frames.Next() {
|
||||
pkg := getPackageName(f.Function)
|
||||
|
||||
// If the caller isn't part of this package, we're done
|
||||
if pkg != logrusPackage {
|
||||
return &f //nolint:scopelint
|
||||
}
|
||||
}
|
||||
|
||||
// if we got here, we failed to find the caller's context
|
||||
return nil
|
||||
}
|
||||
|
||||
func (entry Entry) HasCaller() (has bool) {
|
||||
return entry.Logger != nil &&
|
||||
entry.Logger.ReportCaller &&
|
||||
entry.Caller != nil
|
||||
}
|
||||
|
||||
func (entry *Entry) log(level Level, msg string) {
|
||||
var buffer *bytes.Buffer
|
||||
|
||||
newEntry := entry.Dup()
|
||||
|
||||
if newEntry.Time.IsZero() {
|
||||
newEntry.Time = time.Now()
|
||||
}
|
||||
|
||||
newEntry.Level = level
|
||||
newEntry.Message = msg
|
||||
|
||||
newEntry.Logger.mu.Lock()
|
||||
reportCaller := newEntry.Logger.ReportCaller
|
||||
newEntry.Logger.mu.Unlock()
|
||||
|
||||
if reportCaller {
|
||||
newEntry.Caller = getCaller()
|
||||
}
|
||||
|
||||
newEntry.fireHooks()
|
||||
|
||||
buffer = getBuffer()
|
||||
defer func() {
|
||||
newEntry.Buffer = nil
|
||||
putBuffer(buffer)
|
||||
}()
|
||||
buffer.Reset()
|
||||
newEntry.Buffer = buffer
|
||||
|
||||
newEntry.write()
|
||||
|
||||
newEntry.Buffer = nil
|
||||
|
||||
// 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(newEntry)
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) fireHooks() {
|
||||
var tmpHooks LevelHooks
|
||||
entry.Logger.mu.Lock()
|
||||
tmpHooks = make(LevelHooks, len(entry.Logger.Hooks))
|
||||
for k, v := range entry.Logger.Hooks {
|
||||
tmpHooks[k] = v
|
||||
}
|
||||
entry.Logger.mu.Unlock()
|
||||
|
||||
err := tmpHooks.Fire(entry.Level, entry)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) write() {
|
||||
serialized, err := entry.Logger.Formatter.Format(entry)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
|
||||
return
|
||||
}
|
||||
entry.Logger.mu.Lock()
|
||||
defer entry.Logger.mu.Unlock()
|
||||
if _, err := entry.Logger.Out.Write(serialized); err != nil {
|
||||
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Log(level Level, args ...interface{}) {
|
||||
if entry.Logger.IsLevelEnabled(level) {
|
||||
entry.log(level, fmt.Sprint(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Trace(args ...interface{}) {
|
||||
entry.Log(TraceLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Debug(args ...interface{}) {
|
||||
entry.Log(DebugLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Print(args ...interface{}) {
|
||||
entry.Info(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Info(args ...interface{}) {
|
||||
entry.Log(InfoLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warn(args ...interface{}) {
|
||||
entry.Log(WarnLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warning(args ...interface{}) {
|
||||
entry.Warn(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Error(args ...interface{}) {
|
||||
entry.Log(ErrorLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatal(args ...interface{}) {
|
||||
entry.Log(FatalLevel, args...)
|
||||
entry.Logger.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panic(args ...interface{}) {
|
||||
entry.Log(PanicLevel, args...)
|
||||
}
|
||||
|
||||
// Entry Printf family functions
|
||||
|
||||
func (entry *Entry) Logf(level Level, format string, args ...interface{}) {
|
||||
if entry.Logger.IsLevelEnabled(level) {
|
||||
entry.Log(level, fmt.Sprintf(format, args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Tracef(format string, args ...interface{}) {
|
||||
entry.Logf(TraceLevel, format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Debugf(format string, args ...interface{}) {
|
||||
entry.Logf(DebugLevel, format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Infof(format string, args ...interface{}) {
|
||||
entry.Logf(InfoLevel, format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Printf(format string, args ...interface{}) {
|
||||
entry.Infof(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnf(format string, args ...interface{}) {
|
||||
entry.Logf(WarnLevel, format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningf(format string, args ...interface{}) {
|
||||
entry.Warnf(format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorf(format string, args ...interface{}) {
|
||||
entry.Logf(ErrorLevel, format, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalf(format string, args ...interface{}) {
|
||||
entry.Logf(FatalLevel, format, args...)
|
||||
entry.Logger.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicf(format string, args ...interface{}) {
|
||||
entry.Logf(PanicLevel, format, args...)
|
||||
}
|
||||
|
||||
// Entry Println family functions
|
||||
|
||||
func (entry *Entry) Logln(level Level, args ...interface{}) {
|
||||
if entry.Logger.IsLevelEnabled(level) {
|
||||
entry.Log(level, entry.sprintlnn(args...))
|
||||
}
|
||||
}
|
||||
|
||||
func (entry *Entry) Traceln(args ...interface{}) {
|
||||
entry.Logln(TraceLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Debugln(args ...interface{}) {
|
||||
entry.Logln(DebugLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Infoln(args ...interface{}) {
|
||||
entry.Logln(InfoLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Println(args ...interface{}) {
|
||||
entry.Infoln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warnln(args ...interface{}) {
|
||||
entry.Logln(WarnLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Warningln(args ...interface{}) {
|
||||
entry.Warnln(args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Errorln(args ...interface{}) {
|
||||
entry.Logln(ErrorLevel, args...)
|
||||
}
|
||||
|
||||
func (entry *Entry) Fatalln(args ...interface{}) {
|
||||
entry.Logln(FatalLevel, args...)
|
||||
entry.Logger.Exit(1)
|
||||
}
|
||||
|
||||
func (entry *Entry) Panicln(args ...interface{}) {
|
||||
entry.Logln(PanicLevel, 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 +1,270 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"time"
|
||||
)
|
||||
|
||||
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.SetOutput(out)
|
||||
}
|
||||
|
||||
// SetFormatter sets the standard logger formatter.
|
||||
func SetFormatter(formatter Formatter) {
|
||||
std.SetFormatter(formatter)
|
||||
}
|
||||
|
||||
// SetReportCaller sets whether the standard logger will include the calling
|
||||
// method as a field.
|
||||
func SetReportCaller(include bool) {
|
||||
std.SetReportCaller(include)
|
||||
}
|
||||
|
||||
// SetLevel sets the standard logger level.
|
||||
func SetLevel(level Level) {
|
||||
std.SetLevel(level)
|
||||
}
|
||||
|
||||
// GetLevel returns the standard logger level.
|
||||
func GetLevel() Level {
|
||||
return std.GetLevel()
|
||||
}
|
||||
|
||||
// IsLevelEnabled checks if the log level of the standard logger is greater than the level param
|
||||
func IsLevelEnabled(level Level) bool {
|
||||
return std.IsLevelEnabled(level)
|
||||
}
|
||||
|
||||
// AddHook adds a hook to the standard logger hooks.
|
||||
func AddHook(hook Hook) {
|
||||
std.AddHook(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)
|
||||
}
|
||||
|
||||
// WithContext creates an entry from the standard logger and adds a context to it.
|
||||
func WithContext(ctx context.Context) *Entry {
|
||||
return std.WithContext(ctx)
|
||||
}
|
||||
|
||||
// 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)
|
||||
}
|
||||
|
||||
// WithTime creates an entry from the standard logger and overrides the time of
|
||||
// logs generated with it.
|
||||
//
|
||||
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
|
||||
// or Panic on the Entry it returns.
|
||||
func WithTime(t time.Time) *Entry {
|
||||
return std.WithTime(t)
|
||||
}
|
||||
|
||||
// Trace logs a message at level Trace on the standard logger.
|
||||
func Trace(args ...interface{}) {
|
||||
std.Trace(args...)
|
||||
}
|
||||
|
||||
// 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 then the process will exit with status set to 1.
|
||||
func Fatal(args ...interface{}) {
|
||||
std.Fatal(args...)
|
||||
}
|
||||
|
||||
// TraceFn logs a message from a func at level Trace on the standard logger.
|
||||
func TraceFn(fn LogFunction) {
|
||||
std.TraceFn(fn)
|
||||
}
|
||||
|
||||
// DebugFn logs a message from a func at level Debug on the standard logger.
|
||||
func DebugFn(fn LogFunction) {
|
||||
std.DebugFn(fn)
|
||||
}
|
||||
|
||||
// PrintFn logs a message from a func at level Info on the standard logger.
|
||||
func PrintFn(fn LogFunction) {
|
||||
std.PrintFn(fn)
|
||||
}
|
||||
|
||||
// InfoFn logs a message from a func at level Info on the standard logger.
|
||||
func InfoFn(fn LogFunction) {
|
||||
std.InfoFn(fn)
|
||||
}
|
||||
|
||||
// WarnFn logs a message from a func at level Warn on the standard logger.
|
||||
func WarnFn(fn LogFunction) {
|
||||
std.WarnFn(fn)
|
||||
}
|
||||
|
||||
// WarningFn logs a message from a func at level Warn on the standard logger.
|
||||
func WarningFn(fn LogFunction) {
|
||||
std.WarningFn(fn)
|
||||
}
|
||||
|
||||
// ErrorFn logs a message from a func at level Error on the standard logger.
|
||||
func ErrorFn(fn LogFunction) {
|
||||
std.ErrorFn(fn)
|
||||
}
|
||||
|
||||
// PanicFn logs a message from a func at level Panic on the standard logger.
|
||||
func PanicFn(fn LogFunction) {
|
||||
std.PanicFn(fn)
|
||||
}
|
||||
|
||||
// FatalFn logs a message from a func at level Fatal on the standard logger then the process will exit with status set to 1.
|
||||
func FatalFn(fn LogFunction) {
|
||||
std.FatalFn(fn)
|
||||
}
|
||||
|
||||
// Tracef logs a message at level Trace on the standard logger.
|
||||
func Tracef(format string, args ...interface{}) {
|
||||
std.Tracef(format, 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 then the process will exit with status set to 1.
|
||||
func Fatalf(format string, args ...interface{}) {
|
||||
std.Fatalf(format, args...)
|
||||
}
|
||||
|
||||
// Traceln logs a message at level Trace on the standard logger.
|
||||
func Traceln(args ...interface{}) {
|
||||
std.Traceln(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 then the process will exit with status set to 1.
|
||||
func Fatalln(args ...interface{}) {
|
||||
std.Fatalln(args...)
|
||||
}
|
||||
@ -0,0 +1,78 @@
|
||||
package logrus
|
||||
|
||||
import "time"
|
||||
|
||||
// Default key names for the default fields
|
||||
const (
|
||||
defaultTimestampFormat = time.RFC3339
|
||||
FieldKeyMsg = "msg"
|
||||
FieldKeyLevel = "level"
|
||||
FieldKeyTime = "time"
|
||||
FieldKeyLogrusError = "logrus_error"
|
||||
FieldKeyFunc = "func"
|
||||
FieldKeyFile = "file"
|
||||
)
|
||||
|
||||
// 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`, `func` 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, fieldMap FieldMap, reportCaller bool) {
|
||||
timeKey := fieldMap.resolve(FieldKeyTime)
|
||||
if t, ok := data[timeKey]; ok {
|
||||
data["fields."+timeKey] = t
|
||||
delete(data, timeKey)
|
||||
}
|
||||
|
||||
msgKey := fieldMap.resolve(FieldKeyMsg)
|
||||
if m, ok := data[msgKey]; ok {
|
||||
data["fields."+msgKey] = m
|
||||
delete(data, msgKey)
|
||||
}
|
||||
|
||||
levelKey := fieldMap.resolve(FieldKeyLevel)
|
||||
if l, ok := data[levelKey]; ok {
|
||||
data["fields."+levelKey] = l
|
||||
delete(data, levelKey)
|
||||
}
|
||||
|
||||
logrusErrKey := fieldMap.resolve(FieldKeyLogrusError)
|
||||
if l, ok := data[logrusErrKey]; ok {
|
||||
data["fields."+logrusErrKey] = l
|
||||
delete(data, logrusErrKey)
|
||||
}
|
||||
|
||||
// If reportCaller is not set, 'func' will not conflict.
|
||||
if reportCaller {
|
||||
funcKey := fieldMap.resolve(FieldKeyFunc)
|
||||
if l, ok := data[funcKey]; ok {
|
||||
data["fields."+funcKey] = l
|
||||
}
|
||||
fileKey := fieldMap.resolve(FieldKeyFile)
|
||||
if l, ok := data[fileKey]; ok {
|
||||
data["fields."+fileKey] = l
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -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 +1,128 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
type fieldKey string
|
||||
|
||||
// FieldMap allows customization of the key names for default fields.
|
||||
type FieldMap map[fieldKey]string
|
||||
|
||||
func (f FieldMap) resolve(key fieldKey) string {
|
||||
if k, ok := f[key]; ok {
|
||||
return k
|
||||
}
|
||||
|
||||
return string(key)
|
||||
}
|
||||
|
||||
// JSONFormatter formats logs into parsable json
|
||||
type JSONFormatter struct {
|
||||
// TimestampFormat sets the format used for marshaling timestamps.
|
||||
// The format to use is the same than for time.Format or time.Parse from the standard
|
||||
// library.
|
||||
// The standard Library already provides a set of predefined format.
|
||||
TimestampFormat string
|
||||
|
||||
// DisableTimestamp allows disabling automatic timestamps in output
|
||||
DisableTimestamp bool
|
||||
|
||||
// DisableHTMLEscape allows disabling html escaping in output
|
||||
DisableHTMLEscape bool
|
||||
|
||||
// DataKey allows users to put all the log entry parameters into a nested dictionary at a given key.
|
||||
DataKey string
|
||||
|
||||
// FieldMap allows users to customize the names of keys for default fields.
|
||||
// As an example:
|
||||
// formatter := &JSONFormatter{
|
||||
// FieldMap: FieldMap{
|
||||
// FieldKeyTime: "@timestamp",
|
||||
// FieldKeyLevel: "@level",
|
||||
// FieldKeyMsg: "@message",
|
||||
// FieldKeyFunc: "@caller",
|
||||
// },
|
||||
// }
|
||||
FieldMap FieldMap
|
||||
|
||||
// CallerPrettyfier can be set by the user to modify the content
|
||||
// of the function and file keys in the json data when ReportCaller is
|
||||
// activated. If any of the returned value is the empty string the
|
||||
// corresponding key will be removed from json fields.
|
||||
CallerPrettyfier func(*runtime.Frame) (function string, file string)
|
||||
|
||||
// PrettyPrint will indent all json logs
|
||||
PrettyPrint bool
|
||||
}
|
||||
|
||||
// Format renders a single log entry
|
||||
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
data := make(Fields, len(entry.Data)+4)
|
||||
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
|
||||
}
|
||||
}
|
||||
|
||||
if f.DataKey != "" {
|
||||
newData := make(Fields, 4)
|
||||
newData[f.DataKey] = data
|
||||
data = newData
|
||||
}
|
||||
|
||||
prefixFieldClashes(data, f.FieldMap, entry.HasCaller())
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = defaultTimestampFormat
|
||||
}
|
||||
|
||||
if entry.err != "" {
|
||||
data[f.FieldMap.resolve(FieldKeyLogrusError)] = entry.err
|
||||
}
|
||||
if !f.DisableTimestamp {
|
||||
data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
|
||||
}
|
||||
data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
|
||||
data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
|
||||
if entry.HasCaller() {
|
||||
funcVal := entry.Caller.Function
|
||||
fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
|
||||
if f.CallerPrettyfier != nil {
|
||||
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
|
||||
}
|
||||
if funcVal != "" {
|
||||
data[f.FieldMap.resolve(FieldKeyFunc)] = funcVal
|
||||
}
|
||||
if fileVal != "" {
|
||||
data[f.FieldMap.resolve(FieldKeyFile)] = fileVal
|
||||
}
|
||||
}
|
||||
|
||||
var b *bytes.Buffer
|
||||
if entry.Buffer != nil {
|
||||
b = entry.Buffer
|
||||
} else {
|
||||
b = &bytes.Buffer{}
|
||||
}
|
||||
|
||||
encoder := json.NewEncoder(b)
|
||||
encoder.SetEscapeHTML(!f.DisableHTMLEscape)
|
||||
if f.PrettyPrint {
|
||||
encoder.SetIndent("", " ")
|
||||
}
|
||||
if err := encoder.Encode(data); err != nil {
|
||||
return nil, fmt.Errorf("failed to marshal fields to JSON, %w", err)
|
||||
}
|
||||
|
||||
return b.Bytes(), nil
|
||||
}
|
||||
@ -0,0 +1,404 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"os"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
)
|
||||
|
||||
// LogFunction For big messages, it can be more efficient to pass a function
|
||||
// and only call it if the log level is actually enables rather than
|
||||
// generating the log message and then checking if the level is enabled
|
||||
type LogFunction func() []interface{}
|
||||
|
||||
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 adventurous, 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
|
||||
|
||||
// Flag for whether to log caller info (off by default)
|
||||
ReportCaller bool
|
||||
|
||||
// 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.
|
||||
Level Level
|
||||
// Used to sync writing to the log. Locking is enabled by Default
|
||||
mu MutexWrap
|
||||
// Reusable empty entry
|
||||
entryPool sync.Pool
|
||||
// Function to exit the application, defaults to `os.Exit()`
|
||||
ExitFunc exitFunc
|
||||
}
|
||||
|
||||
type exitFunc func(int)
|
||||
|
||||
type MutexWrap struct {
|
||||
lock sync.Mutex
|
||||
disabled bool
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Lock() {
|
||||
if !mw.disabled {
|
||||
mw.lock.Lock()
|
||||
}
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Unlock() {
|
||||
if !mw.disabled {
|
||||
mw.lock.Unlock()
|
||||
}
|
||||
}
|
||||
|
||||
func (mw *MutexWrap) Disable() {
|
||||
mw.disabled = true
|
||||
}
|
||||
|
||||
// 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 = &logrus.Logger{
|
||||
// Out: os.Stderr,
|
||||
// Formatter: new(logrus.TextFormatter),
|
||||
// Hooks: make(logrus.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,
|
||||
ExitFunc: os.Exit,
|
||||
ReportCaller: false,
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) newEntry() *Entry {
|
||||
entry, ok := logger.entryPool.Get().(*Entry)
|
||||
if ok {
|
||||
return entry
|
||||
}
|
||||
return NewEntry(logger)
|
||||
}
|
||||
|
||||
func (logger *Logger) releaseEntry(entry *Entry) {
|
||||
entry.Data = map[string]interface{}{}
|
||||
logger.entryPool.Put(entry)
|
||||
}
|
||||
|
||||
// WithField allocates a new entry and adds a field to it.
|
||||
// Debug, Print, Info, Warn, Error, Fatal or Panic must be then applied to
|
||||
// this new returned entry.
|
||||
// If you want multiple fields, use `WithFields`.
|
||||
func (logger *Logger) WithField(key string, value interface{}) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.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 {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithFields(fields)
|
||||
}
|
||||
|
||||
// Add an error as single field to the log entry. All it does is call
|
||||
// `WithError` for the given `error`.
|
||||
func (logger *Logger) WithError(err error) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithError(err)
|
||||
}
|
||||
|
||||
// Add a context to the log entry.
|
||||
func (logger *Logger) WithContext(ctx context.Context) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithContext(ctx)
|
||||
}
|
||||
|
||||
// Overrides the time of the log entry.
|
||||
func (logger *Logger) WithTime(t time.Time) *Entry {
|
||||
entry := logger.newEntry()
|
||||
defer logger.releaseEntry(entry)
|
||||
return entry.WithTime(t)
|
||||
}
|
||||
|
||||
func (logger *Logger) Logf(level Level, format string, args ...interface{}) {
|
||||
if logger.IsLevelEnabled(level) {
|
||||
entry := logger.newEntry()
|
||||
entry.Logf(level, format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Tracef(format string, args ...interface{}) {
|
||||
logger.Logf(TraceLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugf(format string, args ...interface{}) {
|
||||
logger.Logf(DebugLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Infof(format string, args ...interface{}) {
|
||||
logger.Logf(InfoLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Printf(format string, args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Printf(format, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnf(format string, args ...interface{}) {
|
||||
logger.Logf(WarnLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningf(format string, args ...interface{}) {
|
||||
logger.Warnf(format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorf(format string, args ...interface{}) {
|
||||
logger.Logf(ErrorLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalf(format string, args ...interface{}) {
|
||||
logger.Logf(FatalLevel, format, args...)
|
||||
logger.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicf(format string, args ...interface{}) {
|
||||
logger.Logf(PanicLevel, format, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Log(level Level, args ...interface{}) {
|
||||
if logger.IsLevelEnabled(level) {
|
||||
entry := logger.newEntry()
|
||||
entry.Log(level, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) LogFn(level Level, fn LogFunction) {
|
||||
if logger.IsLevelEnabled(level) {
|
||||
entry := logger.newEntry()
|
||||
entry.Log(level, fn()...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Trace(args ...interface{}) {
|
||||
logger.Log(TraceLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debug(args ...interface{}) {
|
||||
logger.Log(DebugLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Info(args ...interface{}) {
|
||||
logger.Log(InfoLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Print(args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Print(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warn(args ...interface{}) {
|
||||
logger.Log(WarnLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warning(args ...interface{}) {
|
||||
logger.Warn(args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Error(args ...interface{}) {
|
||||
logger.Log(ErrorLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatal(args ...interface{}) {
|
||||
logger.Log(FatalLevel, args...)
|
||||
logger.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panic(args ...interface{}) {
|
||||
logger.Log(PanicLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) TraceFn(fn LogFunction) {
|
||||
logger.LogFn(TraceLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) DebugFn(fn LogFunction) {
|
||||
logger.LogFn(DebugLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) InfoFn(fn LogFunction) {
|
||||
logger.LogFn(InfoLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) PrintFn(fn LogFunction) {
|
||||
entry := logger.newEntry()
|
||||
entry.Print(fn()...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) WarnFn(fn LogFunction) {
|
||||
logger.LogFn(WarnLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) WarningFn(fn LogFunction) {
|
||||
logger.WarnFn(fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) ErrorFn(fn LogFunction) {
|
||||
logger.LogFn(ErrorLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) FatalFn(fn LogFunction) {
|
||||
logger.LogFn(FatalLevel, fn)
|
||||
logger.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) PanicFn(fn LogFunction) {
|
||||
logger.LogFn(PanicLevel, fn)
|
||||
}
|
||||
|
||||
func (logger *Logger) Logln(level Level, args ...interface{}) {
|
||||
if logger.IsLevelEnabled(level) {
|
||||
entry := logger.newEntry()
|
||||
entry.Logln(level, args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
}
|
||||
|
||||
func (logger *Logger) Traceln(args ...interface{}) {
|
||||
logger.Logln(TraceLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Debugln(args ...interface{}) {
|
||||
logger.Logln(DebugLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Infoln(args ...interface{}) {
|
||||
logger.Logln(InfoLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Println(args ...interface{}) {
|
||||
entry := logger.newEntry()
|
||||
entry.Println(args...)
|
||||
logger.releaseEntry(entry)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warnln(args ...interface{}) {
|
||||
logger.Logln(WarnLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Warningln(args ...interface{}) {
|
||||
logger.Warnln(args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Errorln(args ...interface{}) {
|
||||
logger.Logln(ErrorLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Fatalln(args ...interface{}) {
|
||||
logger.Logln(FatalLevel, args...)
|
||||
logger.Exit(1)
|
||||
}
|
||||
|
||||
func (logger *Logger) Panicln(args ...interface{}) {
|
||||
logger.Logln(PanicLevel, args...)
|
||||
}
|
||||
|
||||
func (logger *Logger) Exit(code int) {
|
||||
runHandlers()
|
||||
if logger.ExitFunc == nil {
|
||||
logger.ExitFunc = os.Exit
|
||||
}
|
||||
logger.ExitFunc(code)
|
||||
}
|
||||
|
||||
//When file is opened with appending mode, it's safe to
|
||||
//write concurrently to a file (within 4k message on Linux).
|
||||
//In these cases user can choose to disable the lock.
|
||||
func (logger *Logger) SetNoLock() {
|
||||
logger.mu.Disable()
|
||||
}
|
||||
|
||||
func (logger *Logger) level() Level {
|
||||
return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
|
||||
}
|
||||
|
||||
// SetLevel sets the logger level.
|
||||
func (logger *Logger) SetLevel(level Level) {
|
||||
atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
|
||||
}
|
||||
|
||||
// GetLevel returns the logger level.
|
||||
func (logger *Logger) GetLevel() Level {
|
||||
return logger.level()
|
||||
}
|
||||
|
||||
// AddHook adds a hook to the logger hooks.
|
||||
func (logger *Logger) AddHook(hook Hook) {
|
||||
logger.mu.Lock()
|
||||
defer logger.mu.Unlock()
|
||||
logger.Hooks.Add(hook)
|
||||
}
|
||||
|
||||
// IsLevelEnabled checks if the log level of the logger is greater than the level param
|
||||
func (logger *Logger) IsLevelEnabled(level Level) bool {
|
||||
return logger.level() >= level
|
||||
}
|
||||
|
||||
// SetFormatter sets the logger formatter.
|
||||
func (logger *Logger) SetFormatter(formatter Formatter) {
|
||||
logger.mu.Lock()
|
||||
defer logger.mu.Unlock()
|
||||
logger.Formatter = formatter
|
||||
}
|
||||
|
||||
// SetOutput sets the logger output.
|
||||
func (logger *Logger) SetOutput(output io.Writer) {
|
||||
logger.mu.Lock()
|
||||
defer logger.mu.Unlock()
|
||||
logger.Out = output
|
||||
}
|
||||
|
||||
func (logger *Logger) SetReportCaller(reportCaller bool) {
|
||||
logger.mu.Lock()
|
||||
defer logger.mu.Unlock()
|
||||
logger.ReportCaller = reportCaller
|
||||
}
|
||||
|
||||
// ReplaceHooks replaces the logger hooks and returns the old ones
|
||||
func (logger *Logger) ReplaceHooks(hooks LevelHooks) LevelHooks {
|
||||
logger.mu.Lock()
|
||||
oldHooks := logger.Hooks
|
||||
logger.Hooks = hooks
|
||||
logger.mu.Unlock()
|
||||
return oldHooks
|
||||
}
|
||||
@ -0,0 +1,186 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"log"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Fields type, used to pass to `WithFields`.
|
||||
type Fields map[string]interface{}
|
||||
|
||||
// Level type
|
||||
type Level uint32
|
||||
|
||||
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
|
||||
func (level Level) String() string {
|
||||
if b, err := level.MarshalText(); err == nil {
|
||||
return string(b)
|
||||
} else {
|
||||
return "unknown"
|
||||
}
|
||||
}
|
||||
|
||||
// ParseLevel takes a string level and returns the Logrus log level constant.
|
||||
func ParseLevel(lvl string) (Level, error) {
|
||||
switch strings.ToLower(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
|
||||
case "trace":
|
||||
return TraceLevel, nil
|
||||
}
|
||||
|
||||
var l Level
|
||||
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
|
||||
}
|
||||
|
||||
// UnmarshalText implements encoding.TextUnmarshaler.
|
||||
func (level *Level) UnmarshalText(text []byte) error {
|
||||
l, err := ParseLevel(string(text))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
*level = l
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (level Level) MarshalText() ([]byte, error) {
|
||||
switch level {
|
||||
case TraceLevel:
|
||||
return []byte("trace"), nil
|
||||
case DebugLevel:
|
||||
return []byte("debug"), nil
|
||||
case InfoLevel:
|
||||
return []byte("info"), nil
|
||||
case WarnLevel:
|
||||
return []byte("warning"), nil
|
||||
case ErrorLevel:
|
||||
return []byte("error"), nil
|
||||
case FatalLevel:
|
||||
return []byte("fatal"), nil
|
||||
case PanicLevel:
|
||||
return []byte("panic"), nil
|
||||
}
|
||||
|
||||
return nil, fmt.Errorf("not a valid logrus level %d", level)
|
||||
}
|
||||
|
||||
// A constant exposing all logging levels
|
||||
var AllLevels = []Level{
|
||||
PanicLevel,
|
||||
FatalLevel,
|
||||
ErrorLevel,
|
||||
WarnLevel,
|
||||
InfoLevel,
|
||||
DebugLevel,
|
||||
TraceLevel,
|
||||
}
|
||||
|
||||
// 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 `logger.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
|
||||
// TraceLevel level. Designates finer-grained informational events than the Debug.
|
||||
TraceLevel
|
||||
)
|
||||
|
||||
// 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{})
|
||||
}
|
||||
|
||||
// The FieldLogger interface generalizes the Entry and Logger types
|
||||
type FieldLogger interface {
|
||||
WithField(key string, value interface{}) *Entry
|
||||
WithFields(fields Fields) *Entry
|
||||
WithError(err error) *Entry
|
||||
|
||||
Debugf(format string, args ...interface{})
|
||||
Infof(format string, args ...interface{})
|
||||
Printf(format string, args ...interface{})
|
||||
Warnf(format string, args ...interface{})
|
||||
Warningf(format string, args ...interface{})
|
||||
Errorf(format string, args ...interface{})
|
||||
Fatalf(format string, args ...interface{})
|
||||
Panicf(format string, args ...interface{})
|
||||
|
||||
Debug(args ...interface{})
|
||||
Info(args ...interface{})
|
||||
Print(args ...interface{})
|
||||
Warn(args ...interface{})
|
||||
Warning(args ...interface{})
|
||||
Error(args ...interface{})
|
||||
Fatal(args ...interface{})
|
||||
Panic(args ...interface{})
|
||||
|
||||
Debugln(args ...interface{})
|
||||
Infoln(args ...interface{})
|
||||
Println(args ...interface{})
|
||||
Warnln(args ...interface{})
|
||||
Warningln(args ...interface{})
|
||||
Errorln(args ...interface{})
|
||||
Fatalln(args ...interface{})
|
||||
Panicln(args ...interface{})
|
||||
|
||||
// IsDebugEnabled() bool
|
||||
// IsInfoEnabled() bool
|
||||
// IsWarnEnabled() bool
|
||||
// IsErrorEnabled() bool
|
||||
// IsFatalEnabled() bool
|
||||
// IsPanicEnabled() bool
|
||||
}
|
||||
|
||||
// Ext1FieldLogger (the first extension to FieldLogger) is superfluous, it is
|
||||
// here for consistancy. Do not use. Use Logger or Entry instead.
|
||||
type Ext1FieldLogger interface {
|
||||
FieldLogger
|
||||
Tracef(format string, args ...interface{})
|
||||
Trace(args ...interface{})
|
||||
Traceln(args ...interface{})
|
||||
}
|
||||
@ -0,0 +1,11 @@
|
||||
// +build appengine
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
func checkIfTerminal(w io.Writer) bool {
|
||||
return true
|
||||
}
|
||||
@ -0,0 +1,13 @@
|
||||
// +build darwin dragonfly freebsd netbsd openbsd
|
||||
// +build !js
|
||||
|
||||
package logrus
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
const ioctlReadTermios = unix.TIOCGETA
|
||||
|
||||
func isTerminal(fd int) bool {
|
||||
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
return err == nil
|
||||
}
|
||||
@ -0,0 +1,7 @@
|
||||
// +build js
|
||||
|
||||
package logrus
|
||||
|
||||
func isTerminal(fd int) bool {
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,11 @@
|
||||
// +build js nacl plan9
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
func checkIfTerminal(w io.Writer) bool {
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,17 @@
|
||||
// +build !appengine,!js,!windows,!nacl,!plan9
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
)
|
||||
|
||||
func checkIfTerminal(w io.Writer) bool {
|
||||
switch v := w.(type) {
|
||||
case *os.File:
|
||||
return isTerminal(int(v.Fd()))
|
||||
default:
|
||||
return false
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,11 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"golang.org/x/sys/unix"
|
||||
)
|
||||
|
||||
// IsTerminal returns true if the given file descriptor is a terminal.
|
||||
func isTerminal(fd int) bool {
|
||||
_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
|
||||
return err == nil
|
||||
}
|
||||
@ -0,0 +1,13 @@
|
||||
// +build linux aix zos
|
||||
// +build !js
|
||||
|
||||
package logrus
|
||||
|
||||
import "golang.org/x/sys/unix"
|
||||
|
||||
const ioctlReadTermios = unix.TCGETS
|
||||
|
||||
func isTerminal(fd int) bool {
|
||||
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
||||
return err == nil
|
||||
}
|
||||
@ -0,0 +1,27 @@
|
||||
// +build !appengine,!js,windows
|
||||
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os"
|
||||
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
func checkIfTerminal(w io.Writer) bool {
|
||||
switch v := w.(type) {
|
||||
case *os.File:
|
||||
handle := windows.Handle(v.Fd())
|
||||
var mode uint32
|
||||
if err := windows.GetConsoleMode(handle, &mode); err != nil {
|
||||
return false
|
||||
}
|
||||
mode |= windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
|
||||
if err := windows.SetConsoleMode(handle, mode); err != nil {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,339 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"os"
|
||||
"runtime"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
const (
|
||||
red = 31
|
||||
yellow = 33
|
||||
blue = 36
|
||||
gray = 37
|
||||
)
|
||||
|
||||
var baseTimestamp time.Time
|
||||
|
||||
func init() {
|
||||
baseTimestamp = time.Now()
|
||||
}
|
||||
|
||||
// TextFormatter formats logs into text
|
||||
type TextFormatter struct {
|
||||
// Set to true to bypass checking for a TTY before outputting colors.
|
||||
ForceColors bool
|
||||
|
||||
// Force disabling colors.
|
||||
DisableColors bool
|
||||
|
||||
// Force quoting of all values
|
||||
ForceQuote bool
|
||||
|
||||
// DisableQuote disables quoting for all values.
|
||||
// DisableQuote will have a lower priority than ForceQuote.
|
||||
// If both of them are set to true, quote will be forced on all values.
|
||||
DisableQuote bool
|
||||
|
||||
// Override coloring based on CLICOLOR and CLICOLOR_FORCE. - https://bixense.com/clicolors/
|
||||
EnvironmentOverrideColors 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.
|
||||
// The format to use is the same than for time.Format or time.Parse from the standard
|
||||
// library.
|
||||
// The standard Library already provides a set of predefined format.
|
||||
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
|
||||
|
||||
// The keys sorting function, when uninitialized it uses sort.Strings.
|
||||
SortingFunc func([]string)
|
||||
|
||||
// Disables the truncation of the level text to 4 characters.
|
||||
DisableLevelTruncation bool
|
||||
|
||||
// PadLevelText Adds padding the level text so that all the levels output at the same length
|
||||
// PadLevelText is a superset of the DisableLevelTruncation option
|
||||
PadLevelText bool
|
||||
|
||||
// QuoteEmptyFields will wrap empty fields in quotes if true
|
||||
QuoteEmptyFields bool
|
||||
|
||||
// Whether the logger's out is to a terminal
|
||||
isTerminal bool
|
||||
|
||||
// FieldMap allows users to customize the names of keys for default fields.
|
||||
// As an example:
|
||||
// formatter := &TextFormatter{
|
||||
// FieldMap: FieldMap{
|
||||
// FieldKeyTime: "@timestamp",
|
||||
// FieldKeyLevel: "@level",
|
||||
// FieldKeyMsg: "@message"}}
|
||||
FieldMap FieldMap
|
||||
|
||||
// CallerPrettyfier can be set by the user to modify the content
|
||||
// of the function and file keys in the data when ReportCaller is
|
||||
// activated. If any of the returned value is the empty string the
|
||||
// corresponding key will be removed from fields.
|
||||
CallerPrettyfier func(*runtime.Frame) (function string, file string)
|
||||
|
||||
terminalInitOnce sync.Once
|
||||
|
||||
// The max length of the level text, generated dynamically on init
|
||||
levelTextMaxLength int
|
||||
}
|
||||
|
||||
func (f *TextFormatter) init(entry *Entry) {
|
||||
if entry.Logger != nil {
|
||||
f.isTerminal = checkIfTerminal(entry.Logger.Out)
|
||||
}
|
||||
// Get the max length of the level text
|
||||
for _, level := range AllLevels {
|
||||
levelTextLength := utf8.RuneCount([]byte(level.String()))
|
||||
if levelTextLength > f.levelTextMaxLength {
|
||||
f.levelTextMaxLength = levelTextLength
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (f *TextFormatter) isColored() bool {
|
||||
isColored := f.ForceColors || (f.isTerminal && (runtime.GOOS != "windows"))
|
||||
|
||||
if f.EnvironmentOverrideColors {
|
||||
switch force, ok := os.LookupEnv("CLICOLOR_FORCE"); {
|
||||
case ok && force != "0":
|
||||
isColored = true
|
||||
case ok && force == "0", os.Getenv("CLICOLOR") == "0":
|
||||
isColored = false
|
||||
}
|
||||
}
|
||||
|
||||
return isColored && !f.DisableColors
|
||||
}
|
||||
|
||||
// Format renders a single log entry
|
||||
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
|
||||
data := make(Fields)
|
||||
for k, v := range entry.Data {
|
||||
data[k] = v
|
||||
}
|
||||
prefixFieldClashes(data, f.FieldMap, entry.HasCaller())
|
||||
keys := make([]string, 0, len(data))
|
||||
for k := range data {
|
||||
keys = append(keys, k)
|
||||
}
|
||||
|
||||
var funcVal, fileVal string
|
||||
|
||||
fixedKeys := make([]string, 0, 4+len(data))
|
||||
if !f.DisableTimestamp {
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyTime))
|
||||
}
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLevel))
|
||||
if entry.Message != "" {
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyMsg))
|
||||
}
|
||||
if entry.err != "" {
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyLogrusError))
|
||||
}
|
||||
if entry.HasCaller() {
|
||||
if f.CallerPrettyfier != nil {
|
||||
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
|
||||
} else {
|
||||
funcVal = entry.Caller.Function
|
||||
fileVal = fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
|
||||
}
|
||||
|
||||
if funcVal != "" {
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFunc))
|
||||
}
|
||||
if fileVal != "" {
|
||||
fixedKeys = append(fixedKeys, f.FieldMap.resolve(FieldKeyFile))
|
||||
}
|
||||
}
|
||||
|
||||
if !f.DisableSorting {
|
||||
if f.SortingFunc == nil {
|
||||
sort.Strings(keys)
|
||||
fixedKeys = append(fixedKeys, keys...)
|
||||
} else {
|
||||
if !f.isColored() {
|
||||
fixedKeys = append(fixedKeys, keys...)
|
||||
f.SortingFunc(fixedKeys)
|
||||
} else {
|
||||
f.SortingFunc(keys)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
fixedKeys = append(fixedKeys, keys...)
|
||||
}
|
||||
|
||||
var b *bytes.Buffer
|
||||
if entry.Buffer != nil {
|
||||
b = entry.Buffer
|
||||
} else {
|
||||
b = &bytes.Buffer{}
|
||||
}
|
||||
|
||||
f.terminalInitOnce.Do(func() { f.init(entry) })
|
||||
|
||||
timestampFormat := f.TimestampFormat
|
||||
if timestampFormat == "" {
|
||||
timestampFormat = defaultTimestampFormat
|
||||
}
|
||||
if f.isColored() {
|
||||
f.printColored(b, entry, keys, data, timestampFormat)
|
||||
} else {
|
||||
|
||||
for _, key := range fixedKeys {
|
||||
var value interface{}
|
||||
switch {
|
||||
case key == f.FieldMap.resolve(FieldKeyTime):
|
||||
value = entry.Time.Format(timestampFormat)
|
||||
case key == f.FieldMap.resolve(FieldKeyLevel):
|
||||
value = entry.Level.String()
|
||||
case key == f.FieldMap.resolve(FieldKeyMsg):
|
||||
value = entry.Message
|
||||
case key == f.FieldMap.resolve(FieldKeyLogrusError):
|
||||
value = entry.err
|
||||
case key == f.FieldMap.resolve(FieldKeyFunc) && entry.HasCaller():
|
||||
value = funcVal
|
||||
case key == f.FieldMap.resolve(FieldKeyFile) && entry.HasCaller():
|
||||
value = fileVal
|
||||
default:
|
||||
value = data[key]
|
||||
}
|
||||
f.appendKeyValue(b, key, value)
|
||||
}
|
||||
}
|
||||
|
||||
b.WriteByte('\n')
|
||||
return b.Bytes(), nil
|
||||
}
|
||||
|
||||
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, data Fields, timestampFormat string) {
|
||||
var levelColor int
|
||||
switch entry.Level {
|
||||
case DebugLevel, TraceLevel:
|
||||
levelColor = gray
|
||||
case WarnLevel:
|
||||
levelColor = yellow
|
||||
case ErrorLevel, FatalLevel, PanicLevel:
|
||||
levelColor = red
|
||||
case InfoLevel:
|
||||
levelColor = blue
|
||||
default:
|
||||
levelColor = blue
|
||||
}
|
||||
|
||||
levelText := strings.ToUpper(entry.Level.String())
|
||||
if !f.DisableLevelTruncation && !f.PadLevelText {
|
||||
levelText = levelText[0:4]
|
||||
}
|
||||
if f.PadLevelText {
|
||||
// Generates the format string used in the next line, for example "%-6s" or "%-7s".
|
||||
// Based on the max level text length.
|
||||
formatString := "%-" + strconv.Itoa(f.levelTextMaxLength) + "s"
|
||||
// Formats the level text by appending spaces up to the max length, for example:
|
||||
// - "INFO "
|
||||
// - "WARNING"
|
||||
levelText = fmt.Sprintf(formatString, levelText)
|
||||
}
|
||||
|
||||
// Remove a single newline if it already exists in the message to keep
|
||||
// the behavior of logrus text_formatter the same as the stdlib log package
|
||||
entry.Message = strings.TrimSuffix(entry.Message, "\n")
|
||||
|
||||
caller := ""
|
||||
if entry.HasCaller() {
|
||||
funcVal := fmt.Sprintf("%s()", entry.Caller.Function)
|
||||
fileVal := fmt.Sprintf("%s:%d", entry.Caller.File, entry.Caller.Line)
|
||||
|
||||
if f.CallerPrettyfier != nil {
|
||||
funcVal, fileVal = f.CallerPrettyfier(entry.Caller)
|
||||
}
|
||||
|
||||
if fileVal == "" {
|
||||
caller = funcVal
|
||||
} else if funcVal == "" {
|
||||
caller = fileVal
|
||||
} else {
|
||||
caller = fileVal + " " + funcVal
|
||||
}
|
||||
}
|
||||
|
||||
switch {
|
||||
case f.DisableTimestamp:
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m%s %-44s ", levelColor, levelText, caller, entry.Message)
|
||||
case !f.FullTimestamp:
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d]%s %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), caller, entry.Message)
|
||||
default:
|
||||
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s]%s %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), caller, entry.Message)
|
||||
}
|
||||
for _, k := range keys {
|
||||
v := data[k]
|
||||
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
|
||||
f.appendValue(b, v)
|
||||
}
|
||||
}
|
||||
|
||||
func (f *TextFormatter) needsQuoting(text string) bool {
|
||||
if f.ForceQuote {
|
||||
return true
|
||||
}
|
||||
if f.QuoteEmptyFields && len(text) == 0 {
|
||||
return true
|
||||
}
|
||||
if f.DisableQuote {
|
||||
return false
|
||||
}
|
||||
for _, ch := range text {
|
||||
if !((ch >= 'a' && ch <= 'z') ||
|
||||
(ch >= 'A' && ch <= 'Z') ||
|
||||
(ch >= '0' && ch <= '9') ||
|
||||
ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
|
||||
if b.Len() > 0 {
|
||||
b.WriteByte(' ')
|
||||
}
|
||||
b.WriteString(key)
|
||||
b.WriteByte('=')
|
||||
f.appendValue(b, value)
|
||||
}
|
||||
|
||||
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
|
||||
stringVal, ok := value.(string)
|
||||
if !ok {
|
||||
stringVal = fmt.Sprint(value)
|
||||
}
|
||||
|
||||
if !f.needsQuoting(stringVal) {
|
||||
b.WriteString(stringVal)
|
||||
} else {
|
||||
b.WriteString(fmt.Sprintf("%q", stringVal))
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,70 @@
|
||||
package logrus
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"io"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
// Writer at INFO level. See WriterLevel for details.
|
||||
func (logger *Logger) Writer() *io.PipeWriter {
|
||||
return logger.WriterLevel(InfoLevel)
|
||||
}
|
||||
|
||||
// WriterLevel returns an io.Writer that can be used to write arbitrary text to
|
||||
// the logger at the given log level. Each line written to the writer will be
|
||||
// printed in the usual way using formatters and hooks. The writer is part of an
|
||||
// io.Pipe and it is the callers responsibility to close the writer when done.
|
||||
// This can be used to override the standard library logger easily.
|
||||
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
|
||||
return NewEntry(logger).WriterLevel(level)
|
||||
}
|
||||
|
||||
func (entry *Entry) Writer() *io.PipeWriter {
|
||||
return entry.WriterLevel(InfoLevel)
|
||||
}
|
||||
|
||||
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
|
||||
reader, writer := io.Pipe()
|
||||
|
||||
var printFunc func(args ...interface{})
|
||||
|
||||
switch level {
|
||||
case TraceLevel:
|
||||
printFunc = entry.Trace
|
||||
case DebugLevel:
|
||||
printFunc = entry.Debug
|
||||
case InfoLevel:
|
||||
printFunc = entry.Info
|
||||
case WarnLevel:
|
||||
printFunc = entry.Warn
|
||||
case ErrorLevel:
|
||||
printFunc = entry.Error
|
||||
case FatalLevel:
|
||||
printFunc = entry.Fatal
|
||||
case PanicLevel:
|
||||
printFunc = entry.Panic
|
||||
default:
|
||||
printFunc = entry.Print
|
||||
}
|
||||
|
||||
go entry.writerScanner(reader, printFunc)
|
||||
runtime.SetFinalizer(writer, writerFinalizer)
|
||||
|
||||
return writer
|
||||
}
|
||||
|
||||
func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
|
||||
scanner := bufio.NewScanner(reader)
|
||||
for scanner.Scan() {
|
||||
printFunc(scanner.Text())
|
||||
}
|
||||
if err := scanner.Err(); err != nil {
|
||||
entry.Errorf("Error while reading from Writer: %s", err)
|
||||
}
|
||||
reader.Close()
|
||||
}
|
||||
|
||||
func writerFinalizer(writer *io.PipeWriter) {
|
||||
writer.Close()
|
||||
}
|
||||
Loading…
Reference in New Issue