taldir

Directory service to resolve wallet mailboxes by messenger addresses
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main.go (3157B)

      1 // This file is part of taldir, the Taler Directory implementation.
      2 // Copyright (C) 2025 Martin Schanzenbach
      3 //
      4 // Taldir is free software: you can redistribute it and/or modify it
      5 // under the terms of the GNU Affero General Public License as published
      6 // by the Free Software Foundation, either version 3 of the License,
      7 // or (at your option) any later version.
      8 //
      9 // Taldir is distributed in the hope that it will be useful, but
     10 // WITHOUT ANY WARRANTY; without even the implied warranty of
     11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12 // Affero General Public License for more details.
     13 //
     14 // You should have received a copy of the GNU Affero General Public License
     15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
     16 //
     17 // SPDX-License-Identifier: AGPL3.0-or-later
     18 
     19 package main
     20 
     21 import (
     22 	"flag"
     23 	"fmt"
     24 	"os"
     25 	"path"
     26 
     27 	"rsc.io/getopt"
     28 
     29 	"gopkg.in/ini.v1"
     30 )
     31 
     32 var (
     33 	version        string
     34 	taldirdatahome string
     35 	taldirconfdir  string
     36 	verbose        bool // FIXME do something with this?
     37 )
     38 
     39 func printHelp() {
     40 	fmt.Print("taler-directory-config\n\n")
     41 	getopt.PrintDefaults()
     42 	fmt.Print("\nReport bugs to gnunet-developers@gnu.org.\n",
     43 		"Home page: https://taler.net\n",
     44 		"General help using GNU software: http://www.gnu.org/gethelp/\n")
     45 }
     46 
     47 func printKey(key *ini.Key, onlyValue bool) {
     48 	if onlyValue {
     49 		fmt.Printf("%s\n", key.String())
     50 		return
     51 	}
     52 	fmt.Printf("%s = %s\n", key.Name(), key.String())
     53 }
     54 
     55 func printCfgOptions(sec *ini.Section, option *string, onlyValue *bool) {
     56 	if len(*option) == 0 {
     57 		for _, key := range sec.Keys() {
     58 			printKey(key, *onlyValue)
     59 		}
     60 		return
     61 	}
     62 	if !sec.HasKey(*option) {
     63 		fmt.Printf("Section `%s' does not have option `%s'!\n", sec.Name(), *option)
     64 		os.Exit(1)
     65 	}
     66 	key := sec.Key(*option)
     67 	printKey(key, *onlyValue)
     68 }
     69 
     70 func printCfgSections(f *ini.File) {
     71 	for _, sec := range f.Sections() {
     72 		fmt.Println(sec.Name())
     73 	}
     74 }
     75 
     76 func main() {
     77 	var cfg *ini.File
     78 	var err error
     79 	var sectionFlag = flag.String("s", "", "Section to use")
     80 	getopt.Alias("s", "section")
     81 	var listSectionFlag = flag.Bool("S", false, "List all sections")
     82 	getopt.Alias("S", "list-sections")
     83 	var optionFlag = flag.String("o", "", "Option to output")
     84 	getopt.Alias("o", "option")
     85 	var onlyValueFlag = flag.Bool("O", false, "Output only value")
     86 	getopt.Alias("O", "only-value")
     87 	var cfgFlag = flag.String("c", "", "Configuration file to use")
     88 	getopt.Alias("c", "config")
     89 	var helpFlag = flag.Bool("h", false, "Print help")
     90 	getopt.Alias("h", "help")
     91 
     92 	getopt.Parse()
     93 	if *helpFlag {
     94 		printHelp()
     95 		return
     96 	}
     97 	cfgfile := path.Join(taldirconfdir, "taldir.conf")
     98 	if len(*cfgFlag) != 0 {
     99 		cfg, err = ini.Load(*cfgFlag)
    100 		if err != nil {
    101 			fmt.Printf("Failed to read config: %v\n", err)
    102 			os.Exit(1)
    103 		}
    104 	} else {
    105 		// FIXME also try in datahome
    106 		cfg, err = ini.LooseLoad(cfgfile)
    107 		if err != nil {
    108 			fmt.Printf("Failed to read config: %v\n", err)
    109 			os.Exit(1)
    110 		}
    111 	}
    112 	if *listSectionFlag {
    113 		printCfgSections(cfg)
    114 		return
    115 	}
    116 	if len(*sectionFlag) == 0 {
    117 		fmt.Println("No section given!")
    118 		os.Exit(1)
    119 	}
    120 	sec := cfg.Section(*sectionFlag)
    121 	printCfgOptions(sec, optionFlag, onlyValueFlag)
    122 }