feat(neovim): implement PlanForce

internal/modules/neovim/neovim_test.go

@@ -207,4 +207,93 @@ func TestWriteChadrcNoopWithoutConfigDir(t *testing.T) {
 	}
 }
 
+func TestPlanForceReinstallsAndRewrites(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	// Pre-populate an "installed" NvChad clone with a local user tweak so we
+	// can verify PlanForce does NOT wipe the clone.
+	cfg := filepath.Join(home, ".config", "nvim")
+	os.MkdirAll(filepath.Join(cfg, "lua", "plugins"), 0o755)
+	os.WriteFile(filepath.Join(cfg, "lua", "plugins", "init.lua"),
+		[]byte("return {\n  \"other\",\n},\n"), 0o644)
+	userTweak := filepath.Join(cfg, "lua", "user_tweak.lua")
+	os.WriteFile(userTweak, []byte("-- my custom stuff"), 0o644)
+
+	r := &fakeRunner{installed: map[string]bool{"neovim": true}}
+	m := New(config.NeovimConfig{NvChadStarterRepo: "https://x/starter"}, "dracula", platform.NewPacman(r), platform.GitClient{Runner: r})
+
+	plan, err := m.PlanForce(context.Background())
+	if err != nil {
+		t.Fatalf("PlanForce: %v", err)
+	}
+	if plan.IsEmpty() {
+		t.Fatal("force plan must not be empty")
+	}
+	for _, a := range plan.Actions {
+		if err := a.Exec(context.Background()); err != nil {
+			t.Fatalf("Exec %q: %v", a.Description, err)
+		}
+	}
+
+	// User tweak must survive.
+	if _, err := os.Stat(userTweak); err != nil {
+		t.Fatalf("PlanForce wiped user NvChad modification: %v", err)
+	}
+	// No `git clone` call because starter init.lua was already present.
+	for _, c := range r.runCalls {
+		if c[0] == "git" && len(c) >= 2 && c[1] == "clone" {
+			t.Fatalf("PlanForce re-cloned existing NvChad: %v", c)
+		}
+	}
+	// pacman reinstall must have fired.
+	sawReinstall := false
+	for _, c := range r.runCalls {
+		if len(c) >= 4 && c[0] == "sudo" && c[1] == "pacman" && c[2] == "-S" && c[3] == "--noconfirm" {
+			sawReinstall = true
+		}
+	}
+	if !sawReinstall {
+		t.Fatalf("no pacman reinstall call; calls=%v", r.runCalls)
+	}
+	// chadrc.lua was rewritten with the requested theme.
+	chadrc, err := os.ReadFile(filepath.Join(cfg, "lua", "chadrc.lua"))
+	if err != nil {
+		t.Fatalf("chadrc missing after force: %v", err)
+	}
+	if !strings.Contains(string(chadrc), `theme = "dracula"`) {
+		t.Fatalf("chadrc theme not applied: %s", chadrc)
+	}
+	// assets rewritten
+	for _, name := range []string{"arduino.lua", "dap.lua"} {
+		if _, err := os.Stat(filepath.Join(cfg, "lua", "plugins", name)); err != nil {
+			t.Errorf("asset %s missing after force: %v", name, err)
+		}
+	}
+}
+
+func TestPlanForceClonesIfMissing(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	r := &fakeRunner{installed: map[string]bool{"neovim": true}}
+	m := New(config.NeovimConfig{NvChadStarterRepo: "https://x/starter"}, "gruvbox", platform.NewPacman(r), platform.GitClient{Runner: r})
+	plan, err := m.PlanForce(context.Background())
+	if err != nil {
+		t.Fatalf("PlanForce: %v", err)
+	}
+	for _, a := range plan.Actions {
+		if err := a.Exec(context.Background()); err != nil {
+			t.Fatalf("Exec %q: %v", a.Description, err)
+		}
+	}
+	sawClone := false
+	for _, c := range r.runCalls {
+		if c[0] == "git" && len(c) >= 2 && c[1] == "clone" {
+			sawClone = true
+		}
+	}
+	if !sawClone {
+		t.Fatalf("expected git clone when NvChad absent; calls=%v", r.runCalls)
+	}
+}
+
 var _ module.Module = Module{}