gio/gio-tool-copy.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 #include <stdio.h>
  25 #if 0
  26 #include <locale.h>
  27 #include <string.h>
  28 #include <stdlib.h>
  29 #include <errno.h>
  30 #endif
  31
  32 #include "gio-tool.h"
  33
  34 static gboolean no_target_directory = FALSE;
  35 static gboolean progress = FALSE;
  36 static gboolean interactive = FALSE;
  37 static gboolean preserve = FALSE;
  38 static gboolean backup = FALSE;
  39 static gboolean no_dereference = FALSE;
  40
  41 static const GOptionEntry entries[] = {
  42   { "no-target-directory", 'T', 0, G_OPTION_ARG_NONE, &no_target_directory, N_("No target directory"), NULL },
  43   { "progress", 'p', 0, G_OPTION_ARG_NONE, &progress, N_("Show progress"), NULL },
  44   { "interactive", 'i', 0, G_OPTION_ARG_NONE, &interactive, N_("Prompt before overwrite"), NULL },
  45   { "preserve", 'p', 0, G_OPTION_ARG_NONE, &preserve, N_("Preserve all attributes"), NULL },
  46   { "backup", 'b', 0, G_OPTION_ARG_NONE, &backup, N_("Backup existing destination files"), NULL },
  47   { "no-dereference", 'P', 0, G_OPTION_ARG_NONE, &no_dereference, N_("Never follow symbolic links"), NULL },
  48   { NULL }
  49 };
  50
  51 static gint64 start_time;
  52 static gint64 previous_time;
  53
  54 static void
  55 show_progress (goffset current_num_bytes,
  56                goffset total_num_bytes,
  57                gpointer user_data)
  58 {
  59   gint64 tv;
  60   char *current_size, *total_size, *rate;
  61
  62   tv = g_get_monotonic_time ();
  63   if (tv - previous_time < (G_USEC_PER_SEC / 5) &&
  64       current_num_bytes != total_num_bytes)
  65     return;
  66
  67   current_size = g_format_size (current_num_bytes);
  68   total_size = g_format_size (total_num_bytes);
  69   rate = g_format_size (current_num_bytes /
  70                         MAX ((tv - start_time) / G_USEC_PER_SEC, 1));
  71   g_print ("\r\033[K");
  72   g_print (_("Transferred %s out of %s (%s/s)"), current_size, total_size, rate);
  73
  74   previous_time = tv;
  75
  76   g_free (current_size);
  77   g_free (total_size);
  78   g_free (rate);
  79 }
  80
  81 int
  82 handle_copy (int argc, char *argv[], gboolean do_help)
  83 {
  84   GOptionContext *context;
  85   GError *error = NULL;
  86   char *param;
  87   GFile *source, *dest, *target;
  88   gboolean dest_is_dir;
  89   char *basename;
  90   char *uri;
  91   int i;
  92   GFileCopyFlags flags;
  93   int retval = 0;
  94
  95   g_set_prgname ("gio copy");
  96
  97   /* Translators: commandline placeholder */
  98   param = g_strdup_printf ("%s... %s", _("SOURCE"), _("DESTINATION"));
  99   context = g_option_context_new (param);
 100   g_free (param);
 101   g_option_context_set_help_enabled (context, FALSE);
 102   g_option_context_set_summary (context,
 103       _("Copy one or more files from SOURCE to DESTINATION."));
 104   g_option_context_set_description (context,
 105       _("gio copy is similar to the traditional cp utility, but using GIO\n"
 106         "locations instead of local files: for example, you can use something\n"
 107         "like smb://server/resource/file.txt as location."));
 108   g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
 109
 110   if (do_help)
 111     {
 112       show_help (context, NULL);
 113       return 0;
 114     }
 115
 116   if (!g_option_context_parse (context, &argc, &argv, &error))
 117     {
 118       show_help (context, error->message);
 119       g_error_free (error);
 120       return 1;
 121     }
 122
 123   if (argc < 3)
 124     {
 125       show_help (context, NULL);
 126       return 1;
 127     }
 128
 129   dest = g_file_new_for_commandline_arg (argv[argc - 1]);
 130
 131   if (no_target_directory && argc > 3)
 132     {
 133       show_help (context, NULL);
 134       g_object_unref (dest);
 135       return 1;
 136     }
 137
 138   dest_is_dir = file_is_dir (dest);
 139   if (!dest_is_dir && argc > 3)
 140     {
 141       char *message;
 142
 143       message = g_strdup_printf (_("Destination %s is not a directory"), argv[argc - 1]);
 144       show_help (context, message);
 145       g_free (message);
 146       g_object_unref (dest);
 147       return 1;
 148     }
 149
 150   g_option_context_free (context);
 151
 152   for (i = 1; i < argc - 1; i++)
 153     {
 154       source = g_file_new_for_commandline_arg (argv[i]);
 155       if (dest_is_dir && !no_target_directory)
 156         {
 157           basename = g_file_get_basename (source);
 158           target = g_file_get_child (dest, basename);
 159           g_free (basename);
 160         }
 161       else
 162         target = g_object_ref (dest);
 163
 164       flags = 0;
 165       if (backup)
 166         flags |= G_FILE_COPY_BACKUP;
 167       if (!interactive)
 168         flags |= G_FILE_COPY_OVERWRITE;
 169       if (no_dereference)
 170         flags |= G_FILE_COPY_NOFOLLOW_SYMLINKS;
 171       if (preserve)
 172         flags |= G_FILE_COPY_ALL_METADATA;
 173
 174       error = NULL;
 175       start_time = g_get_monotonic_time ();
 176
 177       if (!g_file_copy (source, target, flags, NULL, progress ? show_progress : NULL, NULL, &error))
 178         {
 179           if (interactive && g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
 180             {
 181               char line[16];
 182
 183               g_error_free (error);
 184               error = NULL;
 185
 186               uri = g_file_get_uri (target);
 187               g_print (_("%s: overwrite “%s”? "), argv[0], uri);
 188               g_free (uri);
 189
 190               if (fgets (line, sizeof (line), stdin) &&
 191                   (line[0] == 'y' || line[0] == 'Y'))
 192                 {
 193                   flags |= G_FILE_COPY_OVERWRITE;
 194                   start_time = g_get_monotonic_time ();
 195                   if (!g_file_copy (source, target, flags, NULL, progress ? show_progress : NULL, NULL, &error))
 196                     goto copy_failed;
 197                 }
 198             }
 199           else
 200             {
 201             copy_failed:
 202               print_file_error (source, error->message);
 203               g_error_free (error);
 204               retval = 1;
 205             }
 206         }
 207
 208      if (progress && retval == 0)
 209         g_print ("\n");
 210
 211       g_object_unref (source);
 212       g_object_unref (target);
 213     }
 214
 215   g_object_unref (dest);
 216
 217   return retval;
 218 }