mirror of
https://github.com/qdm12/gluetun.git
synced 2025-12-11 13:56:50 -06:00
7d824a5179
- Better settings tree structure logged using `qdm12/gotree` - Read settings from environment variables, then files, then secret files - Settings methods to default them, merge them and override them - `DNS_PLAINTEXT_ADDRESS` default changed to `127.0.0.1` to use DoT. Warning added if set to something else. - `HTTPPROXY_LISTENING_ADDRESS` instead of `HTTPPROXY_PORT` (with retro-compatibility)
32 lines
614 B
Go
32 lines
614 B
Go
package helpers
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import (
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"errors"
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"fmt"
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"os"
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"path/filepath"
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)
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var (
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ErrFileDoesNotExist = errors.New("file does not exist")
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ErrFileRead = errors.New("cannot read file")
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ErrFileClose = errors.New("cannot close file")
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)
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func FileExists(path string) (err error) {
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path = filepath.Clean(path)
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f, err := os.Open(path)
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if errors.Is(err, os.ErrNotExist) {
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return fmt.Errorf("%w: %s", ErrFileDoesNotExist, path)
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} else if err != nil {
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return fmt.Errorf("%w: %s", ErrFileRead, err)
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}
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if err := f.Close(); err != nil {
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return fmt.Errorf("%w: %s", ErrFileClose, err)
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}
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return nil
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}
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