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package paths
import (
"fmt"
"os"
"path/filepath"
)
// PathManager handles the resolution of configuration and runtime directories.
// By using a struct, we can instantiate different managers for parallel tests.
type PathManager struct {
ConfigDirOverride string
RuntimeBaseOverride string
}
// NewPathManager creates a PathManager with the given overrides.
func NewPathManager(configOverride, runtimeOverride string) *PathManager {
return &PathManager{
ConfigDirOverride: configOverride,
RuntimeBaseOverride: runtimeOverride,
}
}
// ConfigDir returns the persistent storage path for .conf files.
func (pm *PathManager) ConfigDir() string {
if pm.ConfigDirOverride != "" {
return pm.ConfigDirOverride
}
configHome := os.Getenv("XDG_CONFIG_HOME")
if configHome == "" {
home, err := os.UserHomeDir()
if err != nil {
return "/etc/wg-wrap/profiles" // Fallback
}
configHome = filepath.Join(home, ".config")
}
return filepath.Join(configHome, "wg-wrap", "profiles")
}
// RuntimeBaseDir returns the base ephemeral path.
func (pm *PathManager) RuntimeBaseDir() string {
if pm.RuntimeBaseOverride != "" {
return pm.RuntimeBaseOverride
}
if envDir := os.Getenv("XDG_RUNTIME_DIR"); envDir != "" {
return envDir
}
uid := os.Getuid()
return fmt.Sprintf("/run/user/%d", uid)
}
// ProfileNamespacePath returns the specific path for a pinned namespace.
func (pm *PathManager) ProfileNamespacePath(profile string) string {
return filepath.Join(pm.RuntimeBaseDir(), "profiles", profile+".ns")
}
// ProfilePidsDir returns the path for PID tracking.
func (pm *PathManager) ProfilePidsDir(profile string) string {
return filepath.Join(pm.RuntimeBaseDir(), "profiles", profile, "pids")
}
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