Use $XDG_STATE_HOME for state.yml (#2936)

- **PR Description**

fixes #2856, #2794, #818

1 files changed, 29 insertions, 0 deletions

diff --git a/vendor/github.com/adrg/xdg/internal/pathutil/pathutil_plan9.go b/vendor/github.com/adrg/xdg/internal/pathutil/pathutil_plan9.go
new file mode 100644
index 000000000..8ee4e8d2f
--- /dev/null
+++ b/vendor/github.com/adrg/xdg/internal/pathutil/pathutil_plan9.go
@@ -0,0 +1,29 @@
+package pathutil
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+// Exists returns true if the specified path exists.
+func Exists(path string) bool {
+	_, err := os.Stat(path)
+	return err == nil || os.IsExist(err)
+}
+
+// ExpandHome substitutes `~` and `$home` at the start of the specified
+// `path` using the provided `home` location.
+func ExpandHome(path, home string) string {
+	if path == "" || home == "" {
+		return path
+	}
+	if path[0] == '~' {
+		return filepath.Join(home, path[1:])
+	}
+	if strings.HasPrefix(path, "$home") {
+		return filepath.Join(home, path[5:])
+	}
+
+	return path
+}