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package cli
import (
"fmt"
"os"
"path/filepath"
"strings"
)
// readPasswordFile reads a password from a file, trimming trailing newlines.
// Returns an error when the file cannot be read or the result is empty.
// Used by both migrate-kdbx and the KeePass backend initialisation
// (cli_backend.go → readKeepassPassphrase).
func readPasswordFile(path string) (string, error) {
data, err := os.ReadFile(path)
if err != nil {
return "", fmt.Errorf("reading password file %q: %w", path, err)
}
pass := strings.TrimRight(string(data), "\r\n")
if pass == "" {
return "", fmt.Errorf("password file %q is empty", path)
}
return pass, nil
}
// resolveHomeDir returns the current user's home directory.
// Falls back to "." when os.UserHomeDir fails so callers always receive a
// non-empty path.
func resolveHomeDir() string {
home, err := os.UserHomeDir()
if err != nil || home == "" {
return "."
}
return home
}
// expandHome expands a leading "~" or "~/" to the current user's home directory.
// Paths that do not start with "~" are returned unchanged.
func expandHome(path string) string {
if path == "~" {
return resolveHomeDir()
}
if strings.HasPrefix(path, "~/") {
return filepath.Join(resolveHomeDir(), path[2:])
}
return path
}
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