github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/configuration/config_manager/files.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package configmanager
    21  
    22  import (
    23  	"errors"
    24  	"os"
    25  	"path/filepath"
    26  
    27  	cfgutil "github.com/1aal/kubeblocks/pkg/configuration/core"
    28  )
    29  
    30  type files string
    31  
    32  func newFiles(basePath string) files {
    33  	return files(basePath)
    34  }
    35  
    36  func (f files) Get(filename string) (string, error) {
    37  	path := filepath.Join(string(f), filename)
    38  	if _, err := os.Stat(path); errors.Is(err, os.ErrNotExist) {
    39  		return "", cfgutil.MakeError("file %s not found", filename)
    40  	}
    41  
    42  	b, err := os.ReadFile(path)
    43  	if err != nil {
    44  		return "", cfgutil.WrapError(err, "failed to read file %s", filename)
    45  	}
    46  	return string(b), nil
    47  }