fix: use correct shell on startup

pkg/cy/client.go

@@ -85,6 +85,8 @@ func (c *Cy) NewClient(ctx context.Context, options ClientOptions) (*Client, err
 		return nil, err
 	}
 
+	client.params.SetParent(c.tree.Root().Params())
+
 	c.Lock()
 	c.clients = append(c.clients, client)
 	c.Unlock()

pkg/cy/cy_test.go

@@ -6,7 +6,9 @@ import (
 
 	"github.com/cfoust/cy/pkg/cy/cmd"
 	"github.com/cfoust/cy/pkg/geom"
+	T "github.com/cfoust/cy/pkg/mux/screen/tree"
 	"github.com/cfoust/cy/pkg/mux/stream"
+	"github.com/cfoust/cy/pkg/replay"
 
 	"github.com/stretchr/testify/require"
 )
@@ -85,3 +87,34 @@ func TestClients(t *testing.T) {
 		clients[i].Cancel()
 	}
 }
+
+func TestDefaultShell(t *testing.T) {
+	ctx := context.Background()
+	cy, err := Start(ctx, Options{
+		Shell: "/bin/zsh",
+	})
+	require.NoError(t, err)
+
+	client, err := cy.NewClient(ctx, ClientOptions{
+		Env: map[string]string{
+			"TERM": "xterm-256color",
+		},
+		Size: geom.DEFAULT_SIZE,
+	})
+	require.NoError(t, err)
+
+	node := client.Node()
+	require.NotNil(t, node)
+
+	pane, ok := node.(*T.Pane)
+	require.True(t, ok)
+
+	r, ok := pane.Screen().(*replay.Replayable)
+	require.True(t, ok)
+
+	cmd, ok := r.Cmd().(*stream.Cmd)
+	require.True(t, ok)
+
+	options := cmd.Options()
+	require.Equal(t, "/bin/zsh", options.Command)
+}

pkg/mux/stream/cmd.go

@@ -66,6 +66,11 @@ func (c *Cmd) Resize(size Size) error {
 	})
 }
 
+// Options returns the original arguments used to start the command.
+func (c *Cmd) Options() CmdOptions {
+	return c.options
+}
+
 func (c *Cmd) Path() (string, error) {
 	c.RLock()
 	proc := c.proc