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package main
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import (
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"errors"
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"github.com/yuin/gopher-lua"
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)
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// Server holds information about a Gitea server.
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type Server struct {
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servername string
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url string
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username string
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token string
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}
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// Configuration holds data retrieved from a Lua script.
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type Configuration struct {
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servers []*Server
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}
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// parseText parses a text value from the configuration file.
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func getStringFromTable(L *lua.LState, lobj lua.LValue, key string, out *string) error {
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lv := L.GetTable(lobj, lua.LString(key))
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if text, ok := lv.(lua.LString); ok {
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*out = string(text)
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} else {
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return errors.New("Text is not a string!")
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}
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return nil
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}
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// parseServerFromTable parses a Lua table into a Server structure.
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func parseServerFromTable(L *lua.LState, table lua.LValue) (Server, error) {
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server := Server{}
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if err := getStringFromTable(L, table, "servername", &server.servername); err != nil {
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return server, err
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}
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if err := getStringFromTable(L, table, "username", &server.username); err != nil {
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return server, err
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}
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if err := getStringFromTable(L, table, "token", &server.token); err != nil {
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return server, err
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}
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if err := getStringFromTable(L, table, "url", &server.url); err != nil {
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return server, err
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}
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return server, nil
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}
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// Configuration.Parse parses a Lua configuration file into a Configuration struct.
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func (config *Configuration) Parse(fname string) error {
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L := lua.NewState()
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defer L.Close()
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L.DoFile(fname)
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table := L.Get(-1)
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for i := 1; i <= L.ObjLen(table); i++ {
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lserver := L.GetTable(table, lua.LNumber(i))
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if server, err := parseServerFromTable(L, lserver); err == nil {
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config.servers = append(config.servers, &server)
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} else {
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return err
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}
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}
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return nil
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}
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