go-maymoon/rootdir.go

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2023-08-15 04:39:31 +00:00
package maymoon
import (
"fmt"
"os"
"path/filepath"
)
const (
publicRootDirName string = "public_root"
publicRootEnvName string = "PUBLIC_ROOT"
)
// RootDir returns the "root" directory.
//
// By default, where the "root" directory is depends which user it is running under.
//
// For example, on a Unix or Unix-like system such as Linux, with a user "joeblow" who has a home-directory at
// "/home/joeblow", RootDir might return "/home/joeblow/public_root".
//
// This can be overridden using the "PUBLIC_ROOT" environment variable.
// For example:
//
// PUBLIC_ROOT=/path/to/public_root
//
// Example usage:
//
// rootDir, err := maymoon.RootDir()
// if nil != err {
// return err
// }
//
// fmt.Printf("The maymoon root-dir is at %q \n", rootDir)
func RootDir() (string, error) {
var path string
{
path = os.Getenv(publicRootEnvName)
if "" != path {
/////////////////////// RETURN
return path, nil
}
}
{
homedir, err := os.UserHomeDir()
if nil != err {
return "", fmt.Errorf("problem getting user home-directory: %s", err)
}
path := filepath.Join(homedir, publicRootDirName)
if "" != path {
return path, nil
}
}
return "", nil
}