fix(init): allow alternate Iris binary

root/init_test.go

@@ -41,7 +41,11 @@ func TestInitAutostartRequiresInteractiveShell(t *testing.T) {
 		t.Run(shell, func(t *testing.T) {
 			script := captureInitScript(t, shell)
 
-			head, _, found := strings.Cut(script, "exec iris")
+			autostart := `exec "${IRIS_BIN:-iris}"`
+			if shell == "fish" {
+				autostart = `exec "$IRIS_BIN"`
+			}
+			head, _, found := strings.Cut(script, autostart)
 			if !found {
 				t.Fatalf("%s init script has no autostart", shell)
 			}
@@ -57,3 +61,14 @@ func TestInitAutostartRequiresInteractiveShell(t *testing.T) {
 		})
 	}
 }
+
+func TestInitAutostartSupportsBinaryOverride(t *testing.T) {
+	for _, shell := range []string{"zsh", "bash", "fish"} {
+		t.Run(shell, func(t *testing.T) {
+			script := captureInitScript(t, shell)
+			if !strings.Contains(script, "IRIS_BIN") {
+				t.Fatalf("%s init script does not support IRIS_BIN", shell)
+			}
+		})
+	}
+}