install-service: grant venv base interpreter (pyvenv.cfg home) outside COMFY_DIR

internal/service/venv_test.go

@@ -0,0 +1,45 @@
+package service
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestComfyVenvHome(t *testing.T) {
+	root := t.TempDir()
+	comfy := filepath.Join(root, "ComfyUI")
+	outside := filepath.Join(root, "standalone-env")
+	inside := filepath.Join(comfy, "runtime")
+	for _, d := range []string{filepath.Join(comfy, ".venv"), outside, inside} {
+		if err := os.MkdirAll(d, 0o755); err != nil {
+			t.Fatal(err)
+		}
+	}
+	cfg := filepath.Join(comfy, ".venv", "pyvenv.cfg")
+
+	write := func(home string) {
+		if err := os.WriteFile(cfg, []byte("home = "+home+"\nversion_info = 3.13.0\n"), 0o644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	write(outside)
+	if got := comfyVenvHome(comfy); got != outside {
+		t.Fatalf("outside home: got %q, want %q", got, outside)
+	}
+
+	write(inside)
+	if got := comfyVenvHome(comfy); got != "" {
+		t.Fatalf("inside home: got %q, want empty", got)
+	}
+
+	write(filepath.Join(root, "does-not-exist"))
+	if got := comfyVenvHome(comfy); got != "" {
+		t.Fatalf("missing home: got %q, want empty", got)
+	}
+
+	if got := comfyVenvHome(filepath.Join(root, "no-venv")); got != "" {
+		t.Fatalf("no pyvenv.cfg: got %q, want empty", got)
+	}
+}