66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
/* SHS: Syntactically Homogeneous Shell
|
|
* Copyright (C) 2019 Aidan Hahn
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package config
|
|
|
|
import (
|
|
"os"
|
|
"io"
|
|
"bufio"
|
|
"gitlab.com/whom/shs/log"
|
|
"gitlab.com/whom/shs/ast"
|
|
"gitlab.com/whom/shs/stdlib"
|
|
)
|
|
|
|
func InitFromConfig(configFile string) (ast.VarTable, ast.FuncTable) {
|
|
funcs := stdlib.GenFuncTable()
|
|
vars := &map[string]*ast.Token{}
|
|
|
|
ast.InitVarTable(vars)
|
|
|
|
p := ast.GetVar("HOME", vars)
|
|
configFile = p.Value() + "/" + configFile
|
|
|
|
cfile, err := os.Open(configFile)
|
|
if err != nil {
|
|
log.Log(log.DEBUG,
|
|
"unable to open config file: " + err.Error(),
|
|
"config")
|
|
return vars, funcs
|
|
}
|
|
|
|
r := bufio.NewReader(cfile)
|
|
text, err := r.ReadString('\n')
|
|
for err != io.EOF {
|
|
if err != nil {
|
|
log.Log(log.ERR,
|
|
"unable to read from config file: " + err.Error(),
|
|
"config")
|
|
break
|
|
}
|
|
|
|
// Eval lines in config
|
|
ast.Lex(text).Eval(funcs, vars, false)
|
|
text, err = r.ReadString('\n')
|
|
}
|
|
|
|
log.Log(log.DEBUG,
|
|
"config file fully evaluated",
|
|
"config")
|
|
cfile.Close()
|
|
return vars, funcs
|
|
}
|