PIKApp/plug-ins/help/pika-help-lookup.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pika-help-lookup - a standalone pika-help ID to filename mapper
* Copyright (C) 2004-2008 Sven Neumann <sven@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "libpika/pika.h"
#include "pikahelp.h"
static void show_version (void) G_GNUC_NORETURN;
static gchar * lookup (const gchar *help_domain,
const gchar *help_locales,
const gchar *help_id);
static PikaHelpProgress * progress_new (void);
static const gchar *help_base = NULL;
static gchar *help_root = NULL;
static const gchar *help_locales = NULL;
static const gchar **help_ids = NULL;
static gboolean be_verbose = FALSE;
static const GOptionEntry entries[] =
{
{ "version", 'v', 0,
G_OPTION_ARG_CALLBACK, (GOptionArgFunc) show_version,
"Show version information and exit", NULL
},
{ "base", 'b', 0,
G_OPTION_ARG_STRING, &help_base,
"Specifies base URI", "URI"
},
{ "root", 'r', 0,
G_OPTION_ARG_FILENAME, &help_root,
"Specifies root directory for index files", "DIR"
},
{ "lang", 'l', 0,
G_OPTION_ARG_STRING, &help_locales,
"Specifies help language", "LANG"
},
{
"verbose", 0, 0,
G_OPTION_ARG_NONE, &be_verbose,
"Be more verbose", NULL
},
{
G_OPTION_REMAINING, 0, 0,
G_OPTION_ARG_STRING_ARRAY, &help_ids,
NULL, NULL
},
{ NULL }
};
gint
main (gint argc,
gchar *argv[])
{
GOptionContext *context;
gchar *uri;
GError *error = NULL;
help_base = g_getenv (PIKA_HELP_ENV_URI);
help_root = g_build_filename (pika_data_directory (), PIKA_HELP_PREFIX, NULL);
context = g_option_context_new ("HELP-ID");
g_option_context_add_main_entries (context, entries, NULL);
if (! g_option_context_parse (context, &argc, &argv, &error))
{
g_print ("%s\n", error->message);
g_error_free (error);
return EXIT_FAILURE;
}
if (help_base)
uri = g_strdup (help_base);
else
uri = g_filename_to_uri (help_root, NULL, NULL);
pika_help_register_domain (PIKA_HELP_DEFAULT_DOMAIN, uri);
g_free (uri);
uri = lookup (PIKA_HELP_DEFAULT_DOMAIN,
help_locales ? help_locales : PIKA_HELP_DEFAULT_LOCALE,
help_ids ? help_ids[0] : PIKA_HELP_DEFAULT_ID);
if (uri)
{
g_print ("%s\n", uri);
g_free (uri);
}
g_option_context_free (context);
g_free (help_root);
return uri ? EXIT_SUCCESS : EXIT_FAILURE;
}
static gchar *
lookup (const gchar *help_domain,
const gchar *help_locales,
const gchar *help_id)
{
PikaHelpDomain *domain = pika_help_lookup_domain (help_domain);
if (domain)
{
PikaHelpProgress *progress = progress_new ();
GList *locales;
gchar *full_uri;
locales = pika_help_parse_locales (help_locales);
full_uri = pika_help_domain_map (domain, locales, help_id, progress,
NULL, NULL);
pika_help_progress_free (progress);
g_list_free_full (locales, (GDestroyNotify) g_free);
return full_uri;
}
return NULL;
}
static void
show_version (void)
{
g_print ("pika-help-lookup version %s\n", PIKA_VERSION);
exit (EXIT_SUCCESS);
}
static void
progress_start (const gchar *message,
gboolean cancelable,
gpointer user_data)
{
if (be_verbose)
g_printerr ("\n%s\n", message);
}
static void
progress_end (gpointer user_data)
{
if (be_verbose)
g_printerr ("done\n");
}
static void
progress_set_value (gdouble percentage,
gpointer user_data)
{
if (be_verbose)
g_printerr (".");
}
static PikaHelpProgress *
progress_new (void)
{
const PikaHelpProgressVTable vtable =
{
progress_start,
progress_end,
progress_set_value
};
return pika_help_progress_new (&vtable, NULL);
}