/
assetconfigupgrader.go
51 lines (45 loc) · 1.68 KB
/
assetconfigupgrader.go
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// Copyright 2016 Palantir Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package checker
import (
"encoding/base64"
"os/exec"
"strings"
"github.com/palantir/okgo/okgo"
"github.com/pkg/errors"
)
type assetConfigUpgrader struct {
typeName okgo.CheckerType
assetPath string
}
func (u *assetConfigUpgrader) TypeName() okgo.CheckerType {
return u.typeName
}
func (u *assetConfigUpgrader) UpgradeConfig(config []byte) ([]byte, error) {
upgradeConfigCmd := exec.Command(u.assetPath, "upgrade-config", base64.StdEncoding.EncodeToString(config))
output, err := upgradeConfigCmd.CombinedOutput()
if err != nil {
if _, ok := err.(*exec.ExitError); ok {
// if upgrade fails due to execution error, don't wrap it (will probably just be "exit 1")
output := strings.TrimSuffix(strings.TrimPrefix(string(output), "Error: "), "\n")
return nil, errors.Errorf("failed to upgrade asset configuration: %s", output)
}
return nil, errors.Wrapf(err, "failed to upgrade asset configuration: %s", output)
}
decodedBytes, err := base64.StdEncoding.DecodeString(string(output))
if err != nil {
return nil, errors.Wrapf(err, "failed to decode base64")
}
return decodedBytes, nil
}