glue: add expect

1 files changed, 35 insertions, 0 deletions

diff --git a/glue/libs/gluaexpect/expect.go b/glue/libs/gluaexpect/expect.go
new file mode 100644
index 0000000..b7e57d4
--- /dev/null
+++ b/glue/libs/gluaexpect/expect.go
@@ -0,0 +1,35 @@
+package gluaexpect
+
+import (
+	"github.com/ThomasRooney/gexpect"
+	luar "github.com/layeh/gopher-luar"
+	lua "github.com/yuin/gopher-lua"
+)
+
+func Preload(L *lua.LState) {
+	L.PreloadModule("expect", Loader)
+}
+
+// Loader is the module loader function.
+func Loader(L *lua.LState) int {
+	mod := L.SetFuncs(L.NewTable(), api)
+	L.Push(mod)
+	return 1
+}
+
+var api = map[string]lua.LGFunction{
+	"spawn": spawn,
+}
+
+func spawn(L *lua.LState) int {
+	cmd := L.CheckString(1)
+	child, err := gexpect.Spawn(cmd)
+	if err != nil {
+		L.Push(lua.LNil)
+		L.Push(lua.LString(err.Error()))
+		return 2
+	}
+
+	L.Push(luar.New(L, child))
+	return 1
+}