github.com/openimsdk/tools@v0.0.49/field/dir.go (about)

     1  // Copyright © 2024 OpenIM. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package field
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  	"path/filepath"
    21  
    22  	"github.com/openimsdk/tools/errs"
    23  )
    24  
    25  // OutDir creates the absolute path name from path and checks if the path exists and is a directory.
    26  // Returns absolute path including trailing '/' or error if the path does not exist or is not a directory.
    27  func OutDir(path string) (string, error) {
    28  	outDir, err := filepath.Abs(path)
    29  	if err != nil {
    30  		return "", errs.WrapMsg(err, "failed to resolve absolute path", "path", path)
    31  	}
    32  
    33  	stat, err := os.Stat(outDir)
    34  	if err != nil {
    35  		if os.IsNotExist(err) {
    36  			return "", errs.WrapMsg(err, "output directory does not exist", "path", outDir)
    37  		}
    38  		return "", errs.WrapMsg(err, "failed to stat output directory", "path", outDir)
    39  	}
    40  
    41  	if !stat.IsDir() {
    42  		return "", errs.WrapMsg(fmt.Errorf("specified path %s is not a directory", outDir), "specified path is not a directory", "path", outDir)
    43  	}
    44  	outDir += "/"
    45  	return outDir, nil
    46  }