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3fa7358487
If there are no modules installed then the most appropriate thing is to have no cachefile instead of an empty one. This unbreaks the "clean directory after 'make uninstall'" check that automake does. https://bugzilla.gnome.org/show_bug.cgi?id=671664
146 lines
3.3 KiB
C
146 lines
3.3 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 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 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
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#include "config.h"
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#include "giomodule.h"
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#include <gstdio.h>
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#include <errno.h>
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static gboolean
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is_valid_module_name (const gchar *basename)
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{
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#if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
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return
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g_str_has_prefix (basename, "lib") &&
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g_str_has_suffix (basename, ".so");
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#else
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return g_str_has_suffix (basename, ".dll");
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#endif
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}
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static void
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query_dir (const char *dirname)
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{
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GString *data;
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GDir *dir;
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const char *name;
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char *cachename;
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char **(* query) (void);
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GError *error;
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int i;
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if (!g_module_supported ())
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return;
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error = NULL;
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dir = g_dir_open (dirname, 0, &error);
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if (!dir)
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{
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g_printerr ("Unable to open directory %s: %s\n", dirname, error->message);
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g_error_free (error);
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return;
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}
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data = g_string_new ("");
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while ((name = g_dir_read_name (dir)))
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{
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GModule *module;
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gchar *path;
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char **extension_points;
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if (!is_valid_module_name (name))
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continue;
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path = g_build_filename (dirname, name, NULL);
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module = g_module_open (path, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
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g_free (path);
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if (module)
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{
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g_module_symbol (module, "g_io_module_query", (gpointer) &query);
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if (query)
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{
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extension_points = query ();
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if (extension_points)
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{
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g_string_append_printf (data, "%s: ", name);
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for (i = 0; extension_points[i] != NULL; i++)
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g_string_append_printf (data, "%s%s", i == 0 ? "" : ",", extension_points[i]);
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g_string_append (data, "\n");
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g_strfreev (extension_points);
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}
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}
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g_module_close (module);
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}
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}
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g_dir_close (dir);
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cachename = g_build_filename (dirname, "giomodule.cache", NULL);
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if (data->len > 0)
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{
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error = NULL;
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if (!g_file_set_contents (cachename, data->str, data->len, &error))
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{
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g_printerr ("Unable to create %s: %s\n", cachename, error->message);
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g_error_free (error);
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}
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}
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else
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{
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if (g_unlink (cachename) != 0 && errno != ENOENT)
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g_printerr ("Unable to unlink %s: %s\n", cachename, g_strerror (errno));
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}
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g_string_free (data, TRUE);
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}
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int
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main (gint argc,
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gchar *argv[])
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{
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int i;
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g_type_init ();
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if (argc == 1)
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{
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g_print ("Usage: gio-querymodules <directory1> [<directory2> ...]\n");
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g_print ("Will update giomodule.cache in the listed directories\n");
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return 1;
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}
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for (i = 1; i < argc; i++)
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query_dir (argv[i]);
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return 0;
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}
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