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replace.go
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replace.go
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// Copyright 2021 storyicon@foxmail.com
//
// 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 actions
import (
"bytes"
"context"
"io/fs"
"io/ioutil"
"path/filepath"
"github.com/pkg/errors"
"github.com/aloknikhil/powerproto/pkg/consts"
"github.com/aloknikhil/powerproto/pkg/util"
"github.com/aloknikhil/powerproto/pkg/util/logger"
)
// ActionReplace is used to replace text in bulk
// Its args prototype is:
//
// args: (pattern string, from string, to string)
//
// pattern is used to match files
func ActionReplace(ctx context.Context, log logger.Logger, args []string, options *CommonOptions) error {
if len(args) != 3 {
return errors.Errorf("expected length of args is 3, but received %d", len(args))
}
var (
pattern = args[0]
path = filepath.Dir(options.ConfigFilePath)
from = args[1]
to = args[2]
)
if pattern == "" || from == "" {
return errors.Errorf("pattern and from arguments in action replace can not be empty")
}
if filepath.IsAbs(pattern) {
return errors.Errorf("absolute path %s is not allowed in action replace", pattern)
}
pattern = filepath.Join(path, pattern)
return filepath.Walk(path, func(path string, info fs.FileInfo, err error) error {
if info.IsDir() {
return nil
}
matched, err := util.MatchPath(pattern, path)
if err != nil {
panic(err)
}
if matched {
if consts.IsDryRun(ctx) {
log.LogInfo(map[string]interface{}{
"action": "replace",
"file": path,
"from": from,
"to": to,
}, consts.TextDryRun)
return nil
}
log.LogDebug(map[string]interface{}{
"action": "replace",
"file": path,
"from": from,
"to": to,
}, consts.TextExecuteAction)
data, err := ioutil.ReadFile(path)
if err != nil {
return err
}
data = bytes.ReplaceAll(data, []byte(from), []byte(to))
return ioutil.WriteFile(path, data, fs.ModePerm)
}
return nil
})
}