Hilbish/golibs/fs/fs.go

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// The fs module provides easy and simple access to filesystem functions and other
// things, and acts an addition to the Lua standard library's I/O and fs functions.
package fs
import (
"fmt"
"os"
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"strings"
"hilbish/util"
"github.com/yuin/gopher-lua"
"layeh.com/gopher-luar"
)
func Loader(L *lua.LState) int {
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mod := L.SetFuncs(L.NewTable(), exports)
util.Document(L, mod, `The fs module provides easy and simple access to filesystem functions and other
things, and acts an addition to the Lua standard library's I/O and fs functions.`)
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L.Push(mod)
return 1
}
func luaErr(L *lua.LState, code int) {
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// TODO: Error with a table, with path and error code
L.Error(lua.LNumber(code), 2)
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}
var exports = map[string]lua.LGFunction{
"cd": fcd,
"mkdir": fmkdir,
"stat": fstat,
}
// cd(dir)
// Changes directory to `dir`
func fcd(L *lua.LState) int {
path := L.CheckString(1)
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err := os.Chdir(strings.TrimSpace(path))
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if err != nil {
switch e := err.(*os.PathError).Err.Error(); e {
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case "no such file or directory":
luaErr(L, 1)
case "not a directory":
luaErr(L, 2)
default:
fmt.Printf("Found unhandled error case: %s\n", e)
fmt.Printf("Report this at https://github.com/Rosettea/Hilbish/issues with the title being: \"fs: unhandled error case %s\", and show what caused it.\n", e)
luaErr(L, 213)
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}
}
return 0
}
// mkdir(name, recursive)
// Makes a directory called `name`. If `recursive` is true, it will create its parent directories.
func fmkdir(L *lua.LState) int {
dirname := L.CheckString(1)
recursive := L.ToBool(2)
path := strings.TrimSpace(dirname)
// TODO: handle error here
if recursive {
os.MkdirAll(path, 0744)
} else {
os.Mkdir(path, 0744)
}
return 0
}
// stat(path)
// Returns info about `path`
func fstat(L *lua.LState) int {
path := L.CheckString(1)
// TODO: handle error here
pathinfo, _ := os.Stat(path)
L.Push(luar.New(L, pathinfo))
return 1
}