podman

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//go:build !go1.16 || !finder
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// +build !go1.16 !finder
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package viper
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import (
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	"fmt"
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	"os"
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	"path/filepath"
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	"github.com/spf13/afero"
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)
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// Search all configPaths for any config file.
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// Returns the first path that exists (and is a config file).
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func (v *Viper) findConfigFile() (string, error) {
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	v.logger.Info("searching for config in paths", "paths", v.configPaths)
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	for _, cp := range v.configPaths {
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		file := v.searchInPath(cp)
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		if file != "" {
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			return file, nil
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		}
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	}
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	return "", ConfigFileNotFoundError{v.configName, fmt.Sprintf("%s", v.configPaths)}
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}
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func (v *Viper) searchInPath(in string) (filename string) {
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	v.logger.Debug("searching for config in path", "path", in)
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	for _, ext := range SupportedExts {
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		v.logger.Debug("checking if file exists", "file", filepath.Join(in, v.configName+"."+ext))
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		if b, _ := exists(v.fs, filepath.Join(in, v.configName+"."+ext)); b {
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			v.logger.Debug("found file", "file", filepath.Join(in, v.configName+"."+ext))
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			return filepath.Join(in, v.configName+"."+ext)
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		}
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	}
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	if v.configType != "" {
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		if b, _ := exists(v.fs, filepath.Join(in, v.configName)); b {
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			return filepath.Join(in, v.configName)
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		}
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	}
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	return ""
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}
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// Check if file Exists
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func exists(fs afero.Fs, path string) (bool, error) {
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	stat, err := fs.Stat(path)
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	if err == nil {
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		return !stat.IsDir(), nil
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	}
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	if os.IsNotExist(err) {
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		return false, nil
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	}
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	return false, err
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}
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