package main import ( "hilbish/util" rt "github.com/arnodel/golua/runtime" ) // #interface runner // interactive command runner customization // The runner interface contains functions that allow the user to change // how Hilbish interprets interactive input. // Users can add and change the default runner for interactive input to any // language or script of their choosing. A good example is using it to // write command in Fennel. func runnerModeLoader(rtm *rt.Runtime) *rt.Table { exports := map[string]util.LuaExport{ "sh": {shRunner, 1, false}, "lua": {luaRunner, 1, false}, "setMode": {hlrunnerMode, 1, false}, } mod := rt.NewTable() util.SetExports(rtm, mod, exports) return mod } // #interface runner // setMode(cb) // This is the same as the `hilbish.runnerMode` function. It takes a callback, // which will be used to execute all interactive input. // In normal cases, neither callbacks should be overrided by the user, // as the higher level functions listed below this will handle it. func _runnerMode() {} // #interface runner // sh(cmd) // Runs a command in Hilbish's shell script interpreter. // This is the equivalent of using `source`. func shRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) { if err := c.Check1Arg(); err != nil { return nil, err } cmd, err := c.StringArg(0) if err != nil { return nil, err } _, exitCode, cont, err := execSh(aliases.Resolve(cmd)) var luaErr rt.Value = rt.NilValue if err != nil { luaErr = rt.StringValue(err.Error()) } runnerRet := rt.NewTable() runnerRet.Set(rt.StringValue("input"), rt.StringValue(cmd)) runnerRet.Set(rt.StringValue("exitCode"), rt.IntValue(int64(exitCode))) runnerRet.Set(rt.StringValue("continue"), rt.BoolValue(cont)) runnerRet.Set(rt.StringValue("err"), luaErr) return c.PushingNext(t.Runtime, rt.TableValue(runnerRet)), nil } // #interface runner // lua(cmd) // Evaluates `cmd` as Lua input. This is the same as using `dofile` // or `load`, but is appropriated for the runner interface. func luaRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) { if err := c.Check1Arg(); err != nil { return nil, err } cmd, err := c.StringArg(0) if err != nil { return nil, err } input, exitCode, err := handleLua(cmd) var luaErr rt.Value = rt.NilValue if err != nil { luaErr = rt.StringValue(err.Error()) } runnerRet := rt.NewTable() runnerRet.Set(rt.StringValue("input"), rt.StringValue(input)) runnerRet.Set(rt.StringValue("exitCode"), rt.IntValue(int64(exitCode))) runnerRet.Set(rt.StringValue("err"), luaErr) return c.PushingNext(t.Runtime, rt.TableValue(runnerRet)), nil }