Import Upstream version 2.72.4
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278
gio/gio-tool-monitor.c
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278
gio/gio-tool-monitor.c
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/*
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* Copyright 2015 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include <gio/gio.h>
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#include <gi18n.h>
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#include "gio-tool.h"
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static gchar **watch_dirs;
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static gchar **watch_files;
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static gchar **watch_direct;
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static gchar **watch_silent;
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static gchar **watch_default;
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static gboolean no_moves;
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static gboolean mounts;
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static const GOptionEntry entries[] = {
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{ "dir", 'd', 0, G_OPTION_ARG_FILENAME_ARRAY, &watch_dirs,
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N_("Monitor a directory (default: depends on type)"), N_("LOCATION") },
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{ "file", 'f', 0, G_OPTION_ARG_FILENAME_ARRAY, &watch_files,
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N_("Monitor a file (default: depends on type)"), N_("LOCATION") },
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{ "direct", 'D', 0, G_OPTION_ARG_FILENAME_ARRAY, &watch_direct,
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N_("Monitor a file directly (notices changes made via hardlinks)"), N_("LOCATION") },
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{ "silent", 's', 0, G_OPTION_ARG_FILENAME_ARRAY, &watch_silent,
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N_("Monitors a file directly, but doesn’t report changes"), N_("LOCATION") },
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{ "no-moves", 'n', 0, G_OPTION_ARG_NONE, &no_moves,
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N_("Report moves and renames as simple deleted/created events"), NULL },
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{ "mounts", 'm', 0, G_OPTION_ARG_NONE, &mounts,
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N_("Watch for mount events"), NULL },
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{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &watch_default,
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NULL, NULL },
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G_OPTION_ENTRY_NULL
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};
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static void
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watch_callback (GFileMonitor *monitor,
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GFile *child,
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GFile *other,
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GFileMonitorEvent event_type,
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gpointer user_data)
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{
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gchar *child_str;
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gchar *other_str;
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g_assert (child);
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if (g_file_is_native (child))
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child_str = g_file_get_path (child);
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else
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child_str = g_file_get_uri (child);
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if (other)
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{
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if (g_file_is_native (other))
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other_str = g_file_get_path (other);
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else
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other_str = g_file_get_uri (other);
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}
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else
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other_str = g_strdup ("(none)");
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g_print ("%s: ", (gchar *) user_data);
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switch (event_type)
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{
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case G_FILE_MONITOR_EVENT_CHANGED:
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g_assert (!other);
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g_print ("%s: changed", child_str);
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break;
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case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
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g_assert (!other);
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g_print ("%s: changes done", child_str);
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break;
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case G_FILE_MONITOR_EVENT_DELETED:
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g_assert (!other);
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g_print ("%s: deleted", child_str);
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break;
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case G_FILE_MONITOR_EVENT_CREATED:
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g_assert (!other);
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g_print ("%s: created", child_str);
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break;
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case G_FILE_MONITOR_EVENT_ATTRIBUTE_CHANGED:
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g_assert (!other);
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g_print ("%s: attributes changed", child_str);
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break;
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case G_FILE_MONITOR_EVENT_PRE_UNMOUNT:
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g_assert (!other);
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g_print ("%s: pre-unmount", child_str);
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break;
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case G_FILE_MONITOR_EVENT_UNMOUNTED:
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g_assert (!other);
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g_print ("%s: unmounted", child_str);
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break;
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case G_FILE_MONITOR_EVENT_MOVED_IN:
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g_print ("%s: moved in", child_str);
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if (other)
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g_print (" (from %s)", other_str);
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break;
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case G_FILE_MONITOR_EVENT_MOVED_OUT:
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g_print ("%s: moved out", child_str);
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if (other)
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g_print (" (to %s)", other_str);
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break;
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case G_FILE_MONITOR_EVENT_RENAMED:
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g_assert (other);
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g_print ("%s: renamed to %s\n", child_str, other_str);
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break;
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case G_FILE_MONITOR_EVENT_MOVED:
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default:
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g_assert_not_reached ();
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}
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g_free (child_str);
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g_free (other_str);
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g_print ("\n");
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}
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typedef enum
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{
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WATCH_DIR,
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WATCH_FILE,
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WATCH_AUTO
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} WatchType;
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static gboolean
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add_watch (const gchar *cmdline,
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WatchType watch_type,
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GFileMonitorFlags flags,
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gboolean connect_handler)
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{
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GFileMonitor *monitor = NULL;
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GError *error = NULL;
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GFile *file;
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file = g_file_new_for_commandline_arg (cmdline);
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if (watch_type == WATCH_AUTO)
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{
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GFileInfo *info;
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guint32 type;
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info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_TYPE, G_FILE_QUERY_INFO_NONE, NULL, &error);
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if (!info)
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goto err;
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type = g_file_info_get_attribute_uint32 (info, G_FILE_ATTRIBUTE_STANDARD_TYPE);
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watch_type = (type == G_FILE_TYPE_DIRECTORY) ? WATCH_DIR : WATCH_FILE;
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}
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if (watch_type == WATCH_DIR)
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monitor = g_file_monitor_directory (file, flags, NULL, &error);
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else
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monitor = g_file_monitor (file, flags, NULL, &error);
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if (!monitor)
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goto err;
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if (connect_handler)
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g_signal_connect (monitor, "changed", G_CALLBACK (watch_callback), g_strdup (cmdline));
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monitor = NULL; /* leak */
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g_object_unref (file);
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return TRUE;
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err:
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print_file_error (file, error->message);
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g_error_free (error);
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g_object_unref (file);
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return FALSE;
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}
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int
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handle_monitor (int argc, gchar *argv[], gboolean do_help)
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{
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GOptionContext *context;
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gchar *param;
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GError *error = NULL;
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GFileMonitorFlags flags;
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guint i;
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g_set_prgname ("gio monitor");
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/* Translators: commandline placeholder */
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param = g_strdup_printf ("%s…", _("LOCATION"));
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context = g_option_context_new (param);
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g_free (param);
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g_option_context_set_help_enabled (context, FALSE);
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g_option_context_set_summary (context,
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_("Monitor files or directories for changes."));
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g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
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if (do_help)
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{
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show_help (context, NULL);
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g_option_context_free (context);
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return 0;
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}
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if (!g_option_context_parse (context, &argc, &argv, &error))
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{
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show_help (context, error->message);
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g_error_free (error);
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g_option_context_free (context);
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return 1;
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}
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if (!watch_dirs && !watch_files && !watch_direct && !watch_silent && !watch_default)
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{
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show_help (context, _("No locations given"));
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g_option_context_free (context);
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return 1;
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}
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g_option_context_free (context);
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flags = (no_moves ? 0 : G_FILE_MONITOR_WATCH_MOVES) |
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(mounts ? G_FILE_MONITOR_WATCH_MOUNTS : 0);
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if (watch_dirs)
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{
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for (i = 0; watch_dirs[i]; i++)
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if (!add_watch (watch_dirs[i], WATCH_DIR, flags, TRUE))
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return 1;
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}
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if (watch_files)
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{
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for (i = 0; watch_files[i]; i++)
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if (!add_watch (watch_files[i], WATCH_FILE, flags, TRUE))
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return 1;
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}
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if (watch_direct)
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{
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for (i = 0; watch_direct[i]; i++)
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if (!add_watch (watch_direct[i], WATCH_FILE, flags | G_FILE_MONITOR_WATCH_HARD_LINKS, TRUE))
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return 1;
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}
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if (watch_silent)
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{
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for (i = 0; watch_silent[i]; i++)
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if (!add_watch (watch_silent[i], WATCH_FILE, flags | G_FILE_MONITOR_WATCH_HARD_LINKS, FALSE))
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return 1;
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}
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if (watch_default)
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{
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for (i = 0; watch_default[i]; i++)
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if (!add_watch (watch_default[i], WATCH_AUTO, flags, TRUE))
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return 1;
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}
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while (TRUE)
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g_main_context_iteration (NULL, TRUE);
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return 0;
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}
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