mirror of https://github.com/restic/restic.git
50 lines
1.0 KiB
Go
50 lines
1.0 KiB
Go
package restic
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/restic/restic/debug"
|
|
)
|
|
|
|
// GetCacheDir returns the cache directory according to XDG basedir spec, see
|
|
// http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
|
|
func GetCacheDir() (string, error) {
|
|
xdgcache := os.Getenv("XDG_CACHE_HOME")
|
|
home := os.Getenv("HOME")
|
|
|
|
if xdgcache == "" && home == "" {
|
|
return "", errors.New("unable to locate cache directory (XDG_CACHE_HOME and HOME unset)")
|
|
}
|
|
|
|
cachedir := ""
|
|
if xdgcache != "" {
|
|
cachedir = filepath.Join(xdgcache, "restic")
|
|
} else if home != "" {
|
|
cachedir = filepath.Join(home, ".cache", "restic")
|
|
}
|
|
|
|
fi, err := os.Stat(cachedir)
|
|
if os.IsNotExist(err) {
|
|
err = os.MkdirAll(cachedir, 0700)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
fi, err = os.Stat(cachedir)
|
|
debug.Log("getCacheDir", "create cache dir %v", cachedir)
|
|
}
|
|
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if !fi.IsDir() {
|
|
return "", fmt.Errorf("cache dir %v is not a directory", cachedir)
|
|
}
|
|
|
|
return cachedir, nil
|
|
}
|