Source file src/github.com/spf13/viper/file.go

Documentation: github.com/spf13/viper

     1  //go:build !finder
     2  
     3  package viper
     4  
     5  import (
     6  	"fmt"
     7  	"os"
     8  	"path/filepath"
     9  
    10  	"github.com/spf13/afero"
    11  )
    12  
    13  // Search all configPaths for any config file.
    14  // Returns the first path that exists (and is a config file).
    15  func (v *Viper) findConfigFile() (string, error) {
    16  	v.logger.Info("searching for config in paths", "paths", v.configPaths)
    17  
    18  	for _, cp := range v.configPaths {
    19  		file := v.searchInPath(cp)
    20  		if file != "" {
    21  			return file, nil
    22  		}
    23  	}
    24  	return "", ConfigFileNotFoundError{v.configName, fmt.Sprintf("%s", v.configPaths)}
    25  }
    26  
    27  func (v *Viper) searchInPath(in string) (filename string) {
    28  	v.logger.Debug("searching for config in path", "path", in)
    29  	for _, ext := range SupportedExts {
    30  		v.logger.Debug("checking if file exists", "file", filepath.Join(in, v.configName+"."+ext))
    31  		if b, _ := exists(v.fs, filepath.Join(in, v.configName+"."+ext)); b {
    32  			v.logger.Debug("found file", "file", filepath.Join(in, v.configName+"."+ext))
    33  			return filepath.Join(in, v.configName+"."+ext)
    34  		}
    35  	}
    36  
    37  	if v.configType != "" {
    38  		if b, _ := exists(v.fs, filepath.Join(in, v.configName)); b {
    39  			return filepath.Join(in, v.configName)
    40  		}
    41  	}
    42  
    43  	return ""
    44  }
    45  
    46  // exists checks if file exists.
    47  func exists(fs afero.Fs, path string) (bool, error) {
    48  	stat, err := fs.Stat(path)
    49  	if err == nil {
    50  		return !stat.IsDir(), nil
    51  	}
    52  	if os.IsNotExist(err) {
    53  		return false, nil
    54  	}
    55  	return false, err
    56  }
    57  

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