src/cmdline.c

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include "config.h"
  21 #include "cmdline.h"
  22 #include "path.h"
  23 #include "log.h"
  24 #include "conf.h"
  25 #include "decoder_list.h"
  26 #include "decoder_plugin.h"
  27 #include "output_list.h"
  28 #include "ls.h"
  29
  30 #ifdef ENABLE_ENCODER
  31 #include "encoder_list.h"
  32 #endif
  33
  34 #ifdef ENABLE_ARCHIVE
  35 #include "archive_list.h"
  36 #endif
  37
  38 #include <glib.h>
  39
  40 #include <stdio.h>
  41 #include <stdlib.h>
  42
  43 #ifdef G_OS_WIN32
  44 #define CONFIG_FILE_LOCATION            "\\mpd\\mpd.conf"
  45 #else /* G_OS_WIN32 */
  46 #define USER_CONFIG_FILE_LOCATION1      ".mpdconf"
  47 #define USER_CONFIG_FILE_LOCATION2      ".mpd/mpd.conf"
  48 #endif
  49
  50 static GQuark
  51 cmdline_quark(void)
  52 {
  53         return g_quark_from_static_string("cmdline");
  54 }
  55
  56 static void
  57 print_all_decoders(FILE *fp)
  58 {
  59         for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
  60                 const struct decoder_plugin *plugin = decoder_plugins[i];
  61                 const char *const*suffixes;
  62
  63                 fprintf(fp, "[%s]", plugin->name);
  64
  65                 for (suffixes = plugin->suffixes;
  66                      suffixes != NULL && *suffixes != NULL;
  67                      ++suffixes) {
  68                         fprintf(fp, " %s", *suffixes);
  69                 }
  70
  71                 fprintf(fp, "\n");
  72         }
  73 }
  74
  75 G_GNUC_NORETURN
  76 static void version(void)
  77 {
  78         puts(PACKAGE " (MPD: Music Player Daemon) " VERSION " \n"
  79              "\n"
  80              "Copyright (C) 2003-2007 Warren Dukes <warren.dukes@gmail.com>\n"
  81              "Copyright (C) 2008-2010 Max Kellermann <max@duempel.org>\n"
  82              "This is free software; see the source for copying conditions.  There is NO\n"
  83              "warranty; not even MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
  84              "\n"
  85              "Supported decoders:\n");
  86
  87         print_all_decoders(stdout);
  88
  89         puts("\n"
  90              "Supported outputs:\n");
  91         audio_output_plugin_print_all_types(stdout);
  92
  93 #ifdef ENABLE_ENCODER
  94         puts("\n"
  95              "Supported encoders:\n");
  96         encoder_plugin_print_all_types(stdout);
  97 #endif
  98
  99
 100 #ifdef ENABLE_ARCHIVE
 101         puts("\n"
 102              "Supported archives:\n");
 103         archive_plugin_init_all();
 104         archive_plugin_print_all_suffixes(stdout);
 105 #endif
 106
 107         puts("\n"
 108               "Supported protocols:\n");
 109         print_supported_uri_schemes_to_fp(stdout);
 110
 111         exit(EXIT_SUCCESS);
 112 }
 113
 114 static const char *summary =
 115         "Music Player Daemon - a daemon for playing music.";
 116
 117 bool
 118 parse_cmdline(int argc, char **argv, struct options *options,
 119               GError **error_r)
 120 {
 121         GError *error = NULL;
 122         GOptionContext *context;
 123         bool ret;
 124         static gboolean option_version,
 125                 option_no_daemon,
 126                 option_no_config;
 127         const GOptionEntry entries[] = {
 128                 { "kill", 0, 0, G_OPTION_ARG_NONE, &options->kill,
 129                   "kill the currently running mpd session", NULL },
 130                 { "no-config", 0, 0, G_OPTION_ARG_NONE, &option_no_config,
 131                   "don't read from config", NULL },
 132                 { "no-daemon", 0, 0, G_OPTION_ARG_NONE, &option_no_daemon,
 133                   "don't detach from console", NULL },
 134                 { "stdout", 0, 0, G_OPTION_ARG_NONE, &options->log_stderr,
 135                   NULL, NULL },
 136                 { "stderr", 0, 0, G_OPTION_ARG_NONE, &options->log_stderr,
 137                   "print messages to stderr", NULL },
 138                 { "verbose", 'v', 0, G_OPTION_ARG_NONE, &options->verbose,
 139                   "verbose logging", NULL },
 140                 { "version", 'V', 0, G_OPTION_ARG_NONE, &option_version,
 141                   "print version number", NULL },
 142                 { .long_name = NULL }
 143         };
 144
 145         options->kill = false;
 146         options->daemon = true;
 147         options->log_stderr = false;
 148         options->verbose = false;
 149
 150         context = g_option_context_new("[path/to/mpd.conf]");
 151         g_option_context_add_main_entries(context, entries, NULL);
 152
 153         g_option_context_set_summary(context, summary);
 154
 155         ret = g_option_context_parse(context, &argc, &argv, &error);
 156         g_option_context_free(context);
 157
 158         if (!ret) {
 159                 g_error("option parsing failed: %s\n", error->message);
 160                 exit(1);
 161         }
 162
 163         if (option_version)
 164                 version();
 165
 166         /* initialize the logging library, so the configuration file
 167            parser can use it already */
 168         log_early_init(options->verbose);
 169
 170         options->daemon = !option_no_daemon;
 171
 172         if (option_no_config) {
 173                 g_debug("Ignoring config, using daemon defaults\n");
 174                 return true;
 175         } else if (argc <= 1) {
 176                 /* default configuration file path */
 177                 char *path1;
 178
 179 #ifdef G_OS_WIN32
 180                 path1 = g_build_filename(g_get_user_config_dir(),
 181                                         CONFIG_FILE_LOCATION, NULL);
 182                 if (g_file_test(path1, G_FILE_TEST_IS_REGULAR))
 183                         ret = config_read_file(path1, error_r);
 184                 else {
 185                         int i = 0;
 186                         char *system_path = NULL;
 187                         const char * const *system_config_dirs;
 188
 189                         system_config_dirs = g_get_system_config_dirs();
 190
 191                         while(system_config_dirs[i] != NULL) {
 192                                 system_path = g_build_filename(system_config_dirs[i],
 193                                                 CONFIG_FILE_LOCATION,
 194                                                 NULL);
 195                                 if(g_file_test(system_path,
 196                                                 G_FILE_TEST_IS_REGULAR)) {
 197                                         ret = config_read_file(system_path,error_r);
 198                                         g_free(system_path);
 199                                         g_free(&system_config_dirs);
 200                                         break;
 201                                 }
 202                                 ++i;;
 203                         }
 204                         g_free(system_path);
 205                         g_free(&system_config_dirs);
 206                 }
 207 #else /* G_OS_WIN32 */
 208                 char *path2;
 209                 path1 = g_build_filename(g_get_home_dir(),
 210                                         USER_CONFIG_FILE_LOCATION1, NULL);
 211                 path2 = g_build_filename(g_get_home_dir(),
 212                                         USER_CONFIG_FILE_LOCATION2, NULL);
 213                 if (g_file_test(path1, G_FILE_TEST_IS_REGULAR))
 214                         ret = config_read_file(path1, error_r);
 215                 else if (g_file_test(path2, G_FILE_TEST_IS_REGULAR))
 216                         ret = config_read_file(path2, error_r);
 217                 else if (g_file_test(SYSTEM_CONFIG_FILE_LOCATION,
 218                                      G_FILE_TEST_IS_REGULAR))
 219                         ret = config_read_file(SYSTEM_CONFIG_FILE_LOCATION,
 220                                                error_r);
 221 #endif
 222
 223                 g_free(path1);
 224 #ifndef G_OS_WIN32
 225                 g_free(path2);
 226 #endif
 227
 228                 return ret;
 229         } else if (argc == 2) {
 230                 /* specified configuration file */
 231                 return config_read_file(argv[1], error_r);
 232         } else {
 233                 g_set_error(error_r, cmdline_quark(), 0,
 234                             "too many arguments");
 235                 return false;
 236         }
 237 }