gio/gio-tool-info.c

   1 /*
   2  * Copyright 2015 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the licence, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Author: Matthias Clasen <mclasen@redhat.com>
  18  */
  19
  20 #include "config.h"
  21
  22 #include <gio/gio.h>
  23 #include <gi18n.h>
  24
  25 #include "gio-tool.h"
  26
  27
  28 static gboolean writable = FALSE;
  29 static gboolean filesystem = FALSE;
  30 static char *attributes = NULL;
  31 static gboolean nofollow_symlinks = FALSE;
  32
  33 static const GOptionEntry entries[] = {
  34   { "query-writable", 'w', 0, G_OPTION_ARG_NONE, &writable, N_("List writable attributes"), NULL },
  35   { "filesystem", 'f', 0, G_OPTION_ARG_NONE, &filesystem, N_("Get file system info"), NULL },
  36   { "attributes", 'a', 0, G_OPTION_ARG_STRING, &attributes, N_("The attributes to get"), N_("ATTRIBUTES") },
  37   { "nofollow-symlinks", 'n', 0, G_OPTION_ARG_NONE, &nofollow_symlinks, N_("Don’t follow symbolic links"), NULL },
  38   { NULL }
  39 };
  40
  41 static char *
  42 escape_string (const char *in)
  43 {
  44   GString *str;
  45   static char *hex_digits = "0123456789abcdef";
  46   unsigned char c;
  47
  48
  49   str = g_string_new ("");
  50
  51   while ((c = *in++) != 0)
  52     {
  53       if (c >= 32 && c <= 126 && c != '\\')
  54         g_string_append_c (str, c);
  55       else
  56         {
  57           g_string_append (str, "\\x");
  58           g_string_append_c (str, hex_digits[(c >> 4) & 0xf]);
  59           g_string_append_c (str, hex_digits[c & 0xf]);
  60         }
  61     }
  62
  63   return g_string_free (str, FALSE);
  64 }
  65
  66 static void
  67 show_attributes (GFileInfo *info)
  68 {
  69   char **attributes;
  70   char *s;
  71   int i;
  72
  73   attributes = g_file_info_list_attributes (info, NULL);
  74
  75   g_print (_("attributes:\n"));
  76   for (i = 0; attributes[i] != NULL; i++)
  77     {
  78       /* list the icons in order rather than displaying "GThemedIcon:0x8df7200" */
  79       if (strcmp (attributes[i], "standard::icon") == 0 ||
  80           strcmp (attributes[i], "standard::symbolic-icon") == 0)
  81         {
  82           GIcon *icon;
  83           int j;
  84           const char * const *names = NULL;
  85
  86           if (strcmp (attributes[i], "standard::symbolic-icon") == 0)
  87             icon = g_file_info_get_symbolic_icon (info);
  88           else
  89             icon = g_file_info_get_icon (info);
  90
  91           /* only look up names if GThemedIcon */
  92           if (G_IS_THEMED_ICON(icon))
  93             {
  94               names = g_themed_icon_get_names (G_THEMED_ICON (icon));
  95               g_print ("  %s: ", attributes[i]);
  96               for (j = 0; names[j] != NULL; j++)
  97                 g_print ("%s%s", names[j], (names[j+1] == NULL)?"":", ");
  98               g_print ("\n");
  99             }
 100           else
 101             {
 102               s = g_file_info_get_attribute_as_string (info, attributes[i]);
 103               g_print ("  %s: %s\n", attributes[i], s);
 104               g_free (s);
 105             }
 106         }
 107       else
 108         {
 109           s = g_file_info_get_attribute_as_string (info, attributes[i]);
 110           g_print ("  %s: %s\n", attributes[i], s);
 111           g_free (s);
 112         }
 113     }
 114   g_strfreev (attributes);
 115 }
 116
 117 static void
 118 show_info (GFile *file, GFileInfo *info)
 119 {
 120   const char *name, *type;
 121   char *escaped, *uri;
 122   goffset size;
 123
 124   name = g_file_info_get_display_name (info);
 125   if (name)
 126     /* Translators: This is a noun and represents and attribute of a file */
 127     g_print (_("display name: %s\n"), name);
 128
 129   name = g_file_info_get_edit_name (info);
 130   if (name)
 131     /* Translators: This is a noun and represents and attribute of a file */
 132     g_print (_("edit name: %s\n"), name);
 133
 134   name = g_file_info_get_name (info);
 135   if (name)
 136     {
 137       escaped = escape_string (name);
 138       g_print (_("name: %s\n"), escaped);
 139       g_free (escaped);
 140     }
 141
 142   if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_TYPE))
 143     {
 144       type = file_type_to_string (g_file_info_get_file_type (info));
 145       g_print (_("type: %s\n"), type);
 146     }
 147
 148   if (g_file_info_has_attribute (info, G_FILE_ATTRIBUTE_STANDARD_SIZE))
 149     {
 150       size = g_file_info_get_size (info);
 151       g_print (_("size: "));
 152       g_print (" %"G_GUINT64_FORMAT"\n", (guint64)size);
 153     }
 154
 155   if (g_file_info_get_is_hidden (info))
 156     g_print (_("hidden\n"));
 157
 158   uri = g_file_get_uri (file);
 159   g_print (_("uri: %s\n"), uri);
 160   g_free (uri);
 161
 162   show_attributes (info);
 163 }
 164
 165 static gboolean
 166 query_info (GFile *file)
 167 {
 168   GFileQueryInfoFlags flags;
 169   GFileInfo *info;
 170   GError *error;
 171
 172   if (file == NULL)
 173     return FALSE;
 174
 175   if (attributes == NULL)
 176     attributes = "*";
 177
 178   flags = 0;
 179   if (nofollow_symlinks)
 180     flags |= G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS;
 181
 182   error = NULL;
 183   if (filesystem)
 184     info = g_file_query_filesystem_info (file, attributes, NULL, &error);
 185   else
 186     info = g_file_query_info (file, attributes, flags, NULL, &error);
 187
 188   if (info == NULL)
 189     {
 190       g_printerr ("Error getting info: %s\n", error->message);
 191       g_error_free (error);
 192       return FALSE;
 193     }
 194
 195   if (filesystem)
 196     show_attributes (info);
 197   else
 198     show_info (file, info);
 199
 200   g_object_unref (info);
 201
 202   return TRUE;
 203 }
 204
 205 static gboolean
 206 get_writable_info (GFile *file)
 207 {
 208   GFileAttributeInfoList *list;
 209   GError *error;
 210   int i;
 211   char *flags;
 212
 213   if (file == NULL)
 214     return FALSE;
 215
 216   error = NULL;
 217
 218   list = g_file_query_settable_attributes (file, NULL, &error);
 219   if (list == NULL)
 220     {
 221       g_printerr (_("Error getting writable attributes: %s\n"), error->message);
 222       g_error_free (error);
 223       return FALSE;
 224     }
 225
 226   g_print (_("Settable attributes:\n"));
 227   for (i = 0; i < list->n_infos; i++)
 228     {
 229       flags = attribute_flags_to_string (list->infos[i].flags);
 230       g_print (" %s (%s%s%s)\n",
 231                list->infos[i].name,
 232                attribute_type_to_string (list->infos[i].type),
 233                (*flags != 0)?", ":"", flags);
 234       g_free (flags);
 235     }
 236
 237   g_file_attribute_info_list_unref (list);
 238
 239   list = g_file_query_writable_namespaces (file, NULL, &error);
 240   if (list == NULL)
 241     {
 242       g_printerr ("Error getting writable namespaces: %s\n", error->message);
 243       g_error_free (error);
 244       return FALSE;
 245     }
 246
 247   if (list->n_infos > 0)
 248     {
 249       g_print (_("Writable attribute namespaces:\n"));
 250       for (i = 0; i < list->n_infos; i++)
 251         {
 252           flags = attribute_flags_to_string (list->infos[i].flags);
 253           g_print (" %s (%s%s%s)\n",
 254                    list->infos[i].name,
 255                    attribute_type_to_string (list->infos[i].type),
 256                    (*flags != 0)?", ":"", flags);
 257         }
 258     }
 259
 260   g_file_attribute_info_list_unref (list);
 261
 262   return TRUE;
 263 }
 264
 265 int
 266 handle_info (int argc, char *argv[], gboolean do_help)
 267 {
 268   GOptionContext *context;
 269   gchar *param;
 270   GError *error = NULL;
 271   gboolean res;
 272   gint i;
 273   GFile *file;
 274
 275   g_set_prgname ("gio info");
 276
 277   /* Translators: commandline placeholder */
 278   param = g_strdup_printf ("%s...", _("LOCATION"));
 279   context = g_option_context_new (param);
 280   g_free (param);
 281   g_option_context_set_help_enabled (context, FALSE);
 282   g_option_context_set_summary (context,
 283       _("Show information about locations."));
 284   g_option_context_set_description (context,
 285       _("gio info is similar to the traditional ls utility, but using GIO\n"
 286         "locations instead of local files: for example, you can use something\n"
 287         "like smb://server/resource/file.txt as location. File attributes can\n"
 288         "be specified with their GIO name, e.g. standard::icon, or just by\n"
 289         "namespace, e.g. unix, or by “*”, which matches all attributes"));
 290   g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
 291
 292   if (do_help)
 293     {
 294       show_help (context, NULL);
 295       return 0;
 296     }
 297
 298   if (!g_option_context_parse (context, &argc, &argv, &error))
 299     {
 300       show_help (context, error->message);
 301       g_error_free (error);
 302       return 1;
 303     }
 304
 305   if (argc < 2)
 306     {
 307       show_help (context, _("No locations given"));
 308       return 1;
 309     }
 310
 311   g_option_context_free (context);
 312
 313   res = TRUE;
 314   for (i = 1; i < argc; i++)
 315     {
 316       file = g_file_new_for_commandline_arg (argv[i]);
 317       if (writable)
 318         res &= get_writable_info (file);
 319       else
 320         res &= query_info (file);
 321       g_object_unref (file);
 322     }
 323
 324   return res ? 0 : 2;
 325 }