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sap-jenkins-library/pkg/log/fatalHook.go
Oliver Nocon eafe383d54
Add error category parsing to cmd execution (#1703)
* Add error category parsing to cmd execution

It is now possible to define `ErrorCategoryMapping` as a `map[string][]string` on a `Command`.
The format contains the category as key which has a list of error patterns assigned.
Example:

```
cmd := Command{
  ErrorCategoryMapping: map[string][]string
    "build": {"build failed"},
    "compliance": {"vulnerabilities found", "outdated components found"},
    "test": {"some tests failed"},
  },
}
```

Setting this map triggers console log parsing when executing a command.
If a match is found the error category is stored and
it will automatically be added to the `errorDetails.json`.

* clean up go.mod

* fix test

* fix test

* Update DEVELOPMENT.md

* fix tests

* address long console content without line breaks

* scan condition update

* fix test

* add missing comment for exported function

* Update pkg/command/command.go

Co-authored-by: Stephan Aßmus <stephan.assmus@sap.com>

Co-authored-by: Stephan Aßmus <stephan.assmus@sap.com>
Co-authored-by: Christopher Fenner <26137398+CCFenner@users.noreply.github.com>
2020-06-24 10:04:05 +02:00

54 lines
1.4 KiB
Go

package log
import (
"encoding/json"
"fmt"
"io/ioutil"
"path/filepath"
"github.com/sirupsen/logrus"
)
// FatalHook provides a logrus hook which persists details about a fatal error into the file system.
// This is helpful in order to transfer the error details to an orchestrating CI/CD system
// and by that make it possible to provide better error messages to the user.
type FatalHook struct {
Path string
CorrelationID string
}
// Levels returns the supported log level of the hook.
func (f *FatalHook) Levels() []logrus.Level {
return []logrus.Level{logrus.FatalLevel}
}
// Fire persists the error message of the fatal error as json file into the file system.
func (f *FatalHook) Fire(entry *logrus.Entry) error {
details := entry.Data
if details == nil {
details = logrus.Fields{}
}
details["message"] = entry.Message
details["error"] = fmt.Sprint(details["error"])
details["category"] = fmt.Sprint(GetErrorCategory())
details["result"] = "failure"
details["correlationId"] = f.CorrelationID
fileName := "errorDetails.json"
if details["stepName"] != nil {
fileName = fmt.Sprintf("%v_%v", fmt.Sprint(details["stepName"]), fileName)
}
filePath := filepath.Join(f.Path, fileName)
_, err := ioutil.ReadFile(filePath)
if err != nil {
// ignore errors, since we don't want to break the logging flow
errDetails, _ := json.Marshal(&details)
ioutil.WriteFile(filePath, errDetails, 0655)
}
return nil
}