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