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sap-jenkins-library/cmd/jsonApplyPatch.go
Daniel Kurzynski 8f9ed0766c
Let json patcher fail if file not found (#1694)
Co-authored-by: Stephan Aßmus <stephan.assmus@sap.com>
2020-06-19 20:13:20 +02:00

60 lines
1.3 KiB
Go

package cmd
import (
"bytes"
"encoding/json"
"github.com/SAP/jenkins-library/pkg/log"
"github.com/SAP/jenkins-library/pkg/piperutils"
"github.com/SAP/jenkins-library/pkg/telemetry"
"github.com/evanphx/json-patch"
)
func jsonApplyPatch(config jsonApplyPatchOptions, telemetryData *telemetry.CustomData) {
err := runJsonApplyPatch(&config, &piperutils.Files{})
if err != nil {
log.Entry().WithError(err).Fatal("step execution failed")
}
}
func runJsonApplyPatch(config *jsonApplyPatchOptions, fileUtils piperutils.FileUtils) error {
schema, err := fileUtils.FileRead(config.Input)
if err != nil {
return err
}
patchFile, err := fileUtils.FileRead(config.Patch)
if err != nil {
return err
}
patcher, err := jsonpatch.DecodePatch(patchFile)
if err != nil {
return err
}
patchedSchema, err := patcher.Apply(schema)
if err != nil {
return err
}
formattedJson, err := formatJson(patchedSchema)
if err != nil {
// Ignore error and just use original result.
formattedJson = patchedSchema
}
err = fileUtils.FileWrite(config.Output, formattedJson, 0644)
if err != nil {
return err
}
return nil
}
func formatJson(input []byte) ([]byte, error) {
var output bytes.Buffer
err := json.Indent(&output, input, "", " ")
if err != nil {
return nil, err
}
return output.Bytes(), nil
}