/*

 * Copyright © 2010 Codethink Limited

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, see <http://www.gnu.org/licenses/>.

 *

 * Authors: Ryan Lortie <desrt@desrt.ca>

 */

#include "config.h"

#include "gapplicationcommandline.h"

#include "glibintl.h"

#include "gfile.h"

#include <string.h>

#include <stdio.h>

#ifdef G_OS_UNIX

#include "gunixinputstream.h"

#endif

#ifdef G_OS_WIN32

#include <windows.h>

#undef environ

#include "gwin32inputstream.h"

#endif

/**

 * SECTION:gapplicationcommandline

 * @title: GApplicationCommandLine

 * @short_description: A command-line invocation of an application

 * @include: gio/gio.h

 * @see_also: #GApplication

 *

 * #GApplicationCommandLine represents a command-line invocation of

 * an application.  It is created by #GApplication and emitted

 * in the #GApplication::command-line signal and virtual function.

 *

 * The class contains the list of arguments that the program was invoked

 * with.  It is also possible to query if the commandline invocation was

 * local (ie: the current process is running in direct response to the

 * invocation) or remote (ie: some other process forwarded the

 * commandline to this process).

 *

 * The GApplicationCommandLine object can provide the @argc and @argv

 * parameters for use with the #GOptionContext command-line parsing API,

 * with the g_application_command_line_get_arguments() function. See

 * [gapplication-example-cmdline3.c][gapplication-example-cmdline3]

 * for an example.

 *

 * The exit status of the originally-invoked process may be set and

 * messages can be printed to stdout or stderr of that process.  The

 * lifecycle of the originally-invoked process is tied to the lifecycle

 * of this object (ie: the process exits when the last reference is

 * dropped).

 *

 * The main use for #GApplicationCommandLine (and the

 * #GApplication::command-line signal) is 'Emacs server' like use cases:

 * You can set the `EDITOR` environment variable to have e.g. git use

 * your favourite editor to edit commit messages, and if you already

 * have an instance of the editor running, the editing will happen

 * in the running instance, instead of opening a new one. An important

 * aspect of this use case is that the process that gets started by git

 * does not return until the editing is done.

 *

 * Normally, the commandline is completely handled in the

 * #GApplication::command-line handler. The launching instance exits

 * once the signal handler in the primary instance has returned, and

 * the return value of the signal handler becomes the exit status

 * of the launching instance.

 * |[

 * static int

 * command_line (GApplication            *application,

 *               GApplicationCommandLine *cmdline)

 * {

 *   gchar **argv;

 *   gint argc;

 *   gint i;

 *

 *   argv = g_application_command_line_get_arguments (cmdline, &argc);

 *

 *   g_application_command_line_print (cmdline,

 *                                     "This text is written back\n"

 *                                     "to stdout of the caller\n");

 *

 *   for (i = 0; i < argc; i++)

 *     g_print ("argument %d: %s\n", i, argv[i]);

 *

 *   g_strfreev (argv);

 *

 *   return 0;

 * }

 * ]|

 * The complete example can be found here: 

 * [gapplication-example-cmdline.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-cmdline.c)

 *

 * In more complicated cases, the handling of the comandline can be

 * split between the launcher and the primary instance.

 * |[

 * static gboolean

 *  test_local_cmdline (GApplication   *application,

 *                      gchar        ***arguments,

 *                      gint           *exit_status)

 * {

 *   gint i, j;

 *   gchar **argv;

 *

 *   argv = *arguments;

 *

 *   i = 1;

 *   while (argv[i])

 *     {

 *       if (g_str_has_prefix (argv[i], "--local-"))

 *         {

 *           g_print ("handling argument %s locally\n", argv[i]);

 *           g_free (argv[i]);

 *           for (j = i; argv[j]; j++)

 *             argv[j] = argv[j + 1];

 *         }

 *       else

 *         {

 *           g_print ("not handling argument %s locally\n", argv[i]);

 *           i++;

 *         }

 *     }

 *

 *   *exit_status = 0;

 *

 *   return FALSE;

 * }

 *

 * static void

 * test_application_class_init (TestApplicationClass *class)

 * {

 *   G_APPLICATION_CLASS (class)->local_command_line = test_local_cmdline;

 *

 *   ...

 * }

 * ]|

 * In this example of split commandline handling, options that start

 * with `--local-` are handled locally, all other options are passed

 * to the #GApplication::command-line handler which runs in the primary

 * instance.

 *

 * The complete example can be found here:

 * [gapplication-example-cmdline2.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-cmdline2.c)

 *

 * If handling the commandline requires a lot of work, it may

 * be better to defer it.

 * |[

 * static gboolean

 * my_cmdline_handler (gpointer data)

 * {

 *   GApplicationCommandLine *cmdline = data;

 *

 *   // do the heavy lifting in an idle

 *

 *   g_application_command_line_set_exit_status (cmdline, 0);

 *   g_object_unref (cmdline); // this releases the application

 *

 *   return G_SOURCE_REMOVE;

 * }

 *

 * static int

 * command_line (GApplication            *application,

 *               GApplicationCommandLine *cmdline)

 * {

 *   // keep the application running until we are done with this commandline

 *   g_application_hold (application);

 *

 *   g_object_set_data_full (G_OBJECT (cmdline),

 *                           "application", application,

 *                           (GDestroyNotify)g_application_release);

 *

 *   g_object_ref (cmdline);

 *   g_idle_add (my_cmdline_handler, cmdline);

 *

 *   return 0;

 * }

 * ]|

 * In this example the commandline is not completely handled before

 * the #GApplication::command-line handler returns. Instead, we keep

 * a reference to the #GApplicationCommandLine object and handle it

 * later (in this example, in an idle). Note that it is necessary to

 * hold the application until you are done with the commandline.

 *

 * The complete example can be found here:

 * [gapplication-example-cmdline3.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-cmdline3.c)

 */

/**

 * GApplicationCommandLine:

 *

 * #GApplicationCommandLine is an opaque data structure and can only be accessed

 * using the following functions.

 */

/**

 * GApplicationCommandLineClass:

 *

 * The #GApplicationCommandLineClass-struct 

 * contains private data only.

 *

 * Since: 2.28

 **/

enum

{

  PROP_NONE,

  PROP_ARGUMENTS,

  PROP_OPTIONS,

  PROP_PLATFORM_DATA,

  PROP_IS_REMOTE

};

struct _GApplicationCommandLinePrivate

{

  GVariant *platform_data;

  GVariant *arguments;

  GVariant *options;

  GVariantDict *options_dict;

  gchar *cwd;  /* in GLib filename encoding, not UTF-8 */

  gchar **environ;

  gint exit_status;

};

G_DEFINE_TYPE_WITH_PRIVATE (GApplicationCommandLine, g_application_command_line, G_TYPE_OBJECT)

/* All subclasses represent remote invocations of some kind. */

#define IS_REMOTE(cmdline) (G_TYPE_FROM_INSTANCE (cmdline) != \

                            G_TYPE_APPLICATION_COMMAND_LINE)

static void

grok_platform_data (GApplicationCommandLine *cmdline)

{

  GVariantIter iter;

  const gchar *key;

  GVariant *value;

  g_variant_iter_init (&iter, cmdline->priv->platform_data);

  while (g_variant_iter_loop (&iter, "{&sv}", &key, &value))

    if (strcmp (key, "cwd") == 0)

      {

        if (!cmdline->priv->cwd)

          cmdline->priv->cwd = g_variant_dup_bytestring (value, NULL);

      }

    else if (strcmp (key, "environ") == 0)

      {

        if (!cmdline->priv->environ)

          cmdline->priv->environ =

            g_variant_dup_bytestring_array (value, NULL);

      }

    else if (strcmp (key, "options") == 0)

      {

        if (!cmdline->priv->options)

          cmdline->priv->options = g_variant_ref (value);

      }

}

static void

g_application_command_line_real_print_literal (GApplicationCommandLine *cmdline,

                                               const gchar             *message)

{

  g_print ("%s", message);

}

static void

g_application_command_line_real_printerr_literal (GApplicationCommandLine *cmdline,

                                                  const gchar             *message)

{

  g_printerr ("%s", message);

}

static GInputStream *

g_application_command_line_real_get_stdin (GApplicationCommandLine *cmdline)

{

#ifdef G_OS_UNIX

  return g_unix_input_stream_new (0, FALSE);

#else

  return g_win32_input_stream_new (GetStdHandle (STD_INPUT_HANDLE), FALSE);

#endif

}

static void

g_application_command_line_get_property (GObject    *object,

                                         guint       prop_id,

                                         GValue     *value,

                                         GParamSpec *pspec)

{

  GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);

  switch (prop_id)

    {

    case PROP_ARGUMENTS:

      g_value_set_variant (value, cmdline->priv->arguments);

      break;

    case PROP_PLATFORM_DATA:

      g_value_set_variant (value, cmdline->priv->platform_data);

      break;

    case PROP_IS_REMOTE:

      g_value_set_boolean (value, IS_REMOTE (cmdline));

      break;

    default:

      g_assert_not_reached ();

    }

}

static void

g_application_command_line_set_property (GObject      *object,

                                         guint         prop_id,

                                         const GValue *value,

                                         GParamSpec   *pspec)

{

  GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);

  switch (prop_id)

    {

    case PROP_ARGUMENTS:

      g_assert (cmdline->priv->arguments == NULL);

      cmdline->priv->arguments = g_value_dup_variant (value);

      break;

    case PROP_OPTIONS:

      g_assert (cmdline->priv->options == NULL);

      cmdline->priv->options = g_value_dup_variant (value);

      break;

    case PROP_PLATFORM_DATA:

      g_assert (cmdline->priv->platform_data == NULL);

      cmdline->priv->platform_data = g_value_dup_variant (value);

      if (cmdline->priv->platform_data != NULL)

        grok_platform_data (cmdline);

      break;

    default:

      g_assert_not_reached ();

    }

}

static void

g_application_command_line_finalize (GObject *object)

{

  GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);

  if (cmdline->priv->options_dict)

    g_variant_dict_unref (cmdline->priv->options_dict);

  if (cmdline->priv->options)

      g_variant_unref (cmdline->priv->options);

  if (cmdline->priv->platform_data)

    g_variant_unref (cmdline->priv->platform_data);

  if (cmdline->priv->arguments)

    g_variant_unref (cmdline->priv->arguments);

  g_free (cmdline->priv->cwd);

  g_strfreev (cmdline->priv->environ);

  G_OBJECT_CLASS (g_application_command_line_parent_class)

    ->finalize (object);

}

static void

g_application_command_line_init (GApplicationCommandLine *cmdline)

{

  cmdline->priv = g_application_command_line_get_instance_private (cmdline);

}

static void

g_application_command_line_constructed (GObject *object)

{

  GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);

  if (IS_REMOTE (cmdline))

    return;

  /* In the local case, set cmd and environ */

  if (!cmdline->priv->cwd)

    cmdline->priv->cwd = g_get_current_dir ();

  if (!cmdline->priv->environ)

    cmdline->priv->environ = g_get_environ ();

}

static void

g_application_command_line_class_init (GApplicationCommandLineClass *class)

{

  GObjectClass *object_class = G_OBJECT_CLASS (class);

  object_class->get_property = g_application_command_line_get_property;

  object_class->set_property = g_application_command_line_set_property;

  object_class->finalize = g_application_command_line_finalize;

  object_class->constructed = g_application_command_line_constructed;

  class->printerr_literal = g_application_command_line_real_printerr_literal;

  class->print_literal = g_application_command_line_real_print_literal;

  class->get_stdin = g_application_command_line_real_get_stdin;

  g_object_class_install_property (object_class, PROP_ARGUMENTS,

    g_param_spec_variant ("arguments",

                          P_("Commandline arguments"),

                          P_("The commandline that caused this ::command-line signal emission"),

                          G_VARIANT_TYPE_BYTESTRING_ARRAY, NULL,

                          G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |

                          G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (object_class, PROP_OPTIONS,

    g_param_spec_variant ("options",

                          P_("Options"),

                          P_("The options sent along with the commandline"),

                          G_VARIANT_TYPE_VARDICT, NULL, G_PARAM_WRITABLE |

                          G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (object_class, PROP_PLATFORM_DATA,

    g_param_spec_variant ("platform-data",

                          P_("Platform data"),

                          P_("Platform-specific data for the commandline"),

                          G_VARIANT_TYPE ("a{sv}"), NULL,

                          G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |

                          G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (object_class, PROP_IS_REMOTE,

    g_param_spec_boolean ("is-remote",

                          P_("Is remote"),

                          P_("TRUE if this is a remote commandline"),

                          FALSE,

                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));

}

/**

 * g_application_command_line_get_arguments:

 * @cmdline: a #GApplicationCommandLine

 * @argc: (out) (optional): the length of the arguments array, or %NULL

 *

 * Gets the list of arguments that was passed on the command line.

 *

 * The strings in the array may contain non-UTF-8 data on UNIX (such as

 * filenames or arguments given in the system locale) but are always in

 * UTF-8 on Windows.

 *

 * If you wish to use the return value with #GOptionContext, you must

 * use g_option_context_parse_strv().

 *

 * The return value is %NULL-terminated and should be freed using

 * g_strfreev().

 *

 * Returns: (array length=argc) (element-type filename) (transfer full)

 *      the string array containing the arguments (the argv)

 *

 * Since: 2.28

 **/

gchar **

g_application_command_line_get_arguments (GApplicationCommandLine *cmdline,

                                          int                     *argc)

{

  gchar **argv;

  gsize len;

  g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), NULL);

  argv = g_variant_dup_bytestring_array (cmdline->priv->arguments, &len;;

  if (argc)

    *argc = len;

  return argv;

}

/**

 * g_application_command_line_get_options_dict:

 * @cmdline: a #GApplicationCommandLine

 *

 * Gets the options there were passed to g_application_command_line().

 *

 * If you did not override local_command_line() then these are the same

 * options that were parsed according to the #GOptionEntrys added to the

 * application with g_application_add_main_option_entries() and possibly

 * modified from your GApplication::handle-local-options handler.

 *

 * If no options were sent then an empty dictionary is returned so that

 * you don't need to check for %NULL.

 *

 * Returns: (transfer none): a #GVariantDict with the options

 *

 * Since: 2.40

 **/

GVariantDict *

g_application_command_line_get_options_dict (GApplicationCommandLine *cmdline)

{

  g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), NULL);

  if (!cmdline->priv->options_dict)

    cmdline->priv->options_dict = g_variant_dict_new (cmdline->priv->options);

  return cmdline->priv->options_dict;

}

/**

 * g_application_command_line_get_stdin:

 * @cmdline: a #GApplicationCommandLine

 *

 * Gets the stdin of the invoking process.

 *

 * The #GInputStream can be used to read data passed to the standard

 * input of the invoking process.

 * This doesn't work on all platforms.  Presently, it is only available

 * on UNIX when using a DBus daemon capable of passing file descriptors.

 * If stdin is not available then %NULL will be returned.  In the

 * future, support may be expanded to other platforms.

 *

 * You must only call this function once per commandline invocation.

 *

 * Returns: (transfer full): a #GInputStream for stdin

 *

 * Since: 2.34

 **/

GInputStream *

g_application_command_line_get_stdin (GApplicationCommandLine *cmdline)

{

  return G_APPLICATION_COMMAND_LINE_GET_CLASS (cmdline)->get_stdin (cmdline);

}

/**

 * g_application_command_line_get_cwd:

 * @cmdline: a #GApplicationCommandLine

 *

 * Gets the working directory of the command line invocation.

 * The string may contain non-utf8 data.

 *

 * It is possible that the remote application did not send a working

 * directory, so this may be %NULL.

 *

 * The return value should not be modified or freed and is valid for as

 * long as @cmdline exists.

 *

 * Returns: (nullable) (type filename): the current directory, or %NULL

 *

 * Since: 2.28

 **/

const gchar *

g_application_command_line_get_cwd (GApplicationCommandLine *cmdline)

{

  return cmdline->priv->cwd;

}

/**

 * g_application_command_line_get_environ:

 * @cmdline: a #GApplicationCommandLine

 *

 * Gets the contents of the 'environ' variable of the command line

 * invocation, as would be returned by g_get_environ(), ie as a

 * %NULL-terminated list of strings in the form 'NAME=VALUE'.

 * The strings may contain non-utf8 data.

 *

 * The remote application usually does not send an environment.  Use

 * %G_APPLICATION_SEND_ENVIRONMENT to affect that.  Even with this flag

 * set it is possible that the environment is still not available (due

 * to invocation messages from other applications).

 *

 * The return value should not be modified or freed and is valid for as

 * long as @cmdline exists.

 *

 * See g_application_command_line_getenv() if you are only interested

 * in the value of a single environment variable.

 *

 * Returns: (array zero-terminated=1) (element-type filename) (transfer none):

 *     the environment strings, or %NULL if they were not sent

 *

 * Since: 2.28

 **/

const gchar * const *

g_application_command_line_get_environ (GApplicationCommandLine *cmdline)

{

  return (const gchar **)cmdline->priv->environ;

}

/**

 * g_application_command_line_getenv:

 * @cmdline: a #GApplicationCommandLine

 * @name: (type filename): the environment variable to get

 *

 * Gets the value of a particular environment variable of the command

 * line invocation, as would be returned by g_getenv().  The strings may

 * contain non-utf8 data.

 *

 * The remote application usually does not send an environment.  Use

 * %G_APPLICATION_SEND_ENVIRONMENT to affect that.  Even with this flag

 * set it is possible that the environment is still not available (due

 * to invocation messages from other applications).

 *

 * The return value should not be modified or freed and is valid for as

 * long as @cmdline exists.

 *

 * Returns: the value of the variable, or %NULL if unset or unsent

 *

 * Since: 2.28

 **/

const gchar *

g_application_command_line_getenv (GApplicationCommandLine *cmdline,

                                   const gchar             *name)

{

  gint length = strlen (name);

  gint i;

  /* TODO: expand on windows */

  if (cmdline->priv->environ)

    for (i = 0; cmdline->priv->environ[i]; i++)

      if (strncmp (cmdline->priv->environ[i], name, length) == 0 &&

          cmdline->priv->environ[i][length] == '=')

        return cmdline->priv->environ[i] + length + 1;

  return NULL;

}

/**

 * g_application_command_line_get_is_remote:

 * @cmdline: a #GApplicationCommandLine

 *

 * Determines if @cmdline represents a remote invocation.

 *

 * Returns: %TRUE if the invocation was remote

 *

 * Since: 2.28

 **/

gboolean

g_application_command_line_get_is_remote (GApplicationCommandLine *cmdline)

{

  return IS_REMOTE (cmdline);

}

/**

 * g_application_command_line_print:

 * @cmdline: a #GApplicationCommandLine

 * @format: a printf-style format string

 * @...: arguments, as per @format

 *

 * Formats a message and prints it using the stdout print handler in the

 * invoking process.

 *

 * If @cmdline is a local invocation then this is exactly equivalent to

 * g_print().  If @cmdline is remote then this is equivalent to calling

 * g_print() in the invoking process.

 *

 * Since: 2.28

 **/

void

g_application_command_line_print (GApplicationCommandLine *cmdline,

                                  const gchar             *format,

                                  ...)

{

  gchar *message;

  va_list ap;

  g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));

  g_return_if_fail (format != NULL);

  va_start (ap, format);

  message = g_strdup_vprintf (format, ap);

  va_end (ap);

  G_APPLICATION_COMMAND_LINE_GET_CLASS (cmdline)

    ->print_literal (cmdline, message);

  g_free (message);

}

/**

 * g_application_command_line_printerr:

 * @cmdline: a #GApplicationCommandLine

 * @format: a printf-style format string

 * @...: arguments, as per @format

 *

 * Formats a message and prints it using the stderr print handler in the

 * invoking process.

 *

 * If @cmdline is a local invocation then this is exactly equivalent to

 * g_printerr().  If @cmdline is remote then this is equivalent to

 * calling g_printerr() in the invoking process.

 *

 * Since: 2.28

 **/

void

g_application_command_line_printerr (GApplicationCommandLine *cmdline,

                                     const gchar             *format,

                                     ...)

{

  gchar *message;

  va_list ap;

  g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));

  g_return_if_fail (format != NULL);

  va_start (ap, format);

  message = g_strdup_vprintf (format, ap);

  va_end (ap);

  G_APPLICATION_COMMAND_LINE_GET_CLASS (cmdline)

    ->printerr_literal (cmdline, message);

  g_free (message);

}

/**

 * g_application_command_line_set_exit_status:

 * @cmdline: a #GApplicationCommandLine

 * @exit_status: the exit status

 *

 * Sets the exit status that will be used when the invoking process

 * exits.

 *

 * The return value of the #GApplication::command-line signal is

 * passed to this function when the handler returns.  This is the usual

 * way of setting the exit status.

 *

 * In the event that you want the remote invocation to continue running

 * and want to decide on the exit status in the future, you can use this

 * call.  For the case of a remote invocation, the remote process will

 * typically exit when the last reference is dropped on @cmdline.  The

 * exit status of the remote process will be equal to the last value

 * that was set with this function.

 *

 * In the case that the commandline invocation is local, the situation

 * is slightly more complicated.  If the commandline invocation results

 * in the mainloop running (ie: because the use-count of the application

 * increased to a non-zero value) then the application is considered to

 * have been 'successful' in a certain sense, and the exit status is

 * always zero.  If the application use count is zero, though, the exit

 * status of the local #GApplicationCommandLine is used.

 *

 * Since: 2.28

 **/

void

g_application_command_line_set_exit_status (GApplicationCommandLine *cmdline,

                                            int                      exit_status)

{

  g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));

  cmdline->priv->exit_status = exit_status;

}

/**

 * g_application_command_line_get_exit_status:

 * @cmdline: a #GApplicationCommandLine

 *

 * Gets the exit status of @cmdline.  See

 * g_application_command_line_set_exit_status() for more information.

 *

 * Returns: the exit status

 *

 * Since: 2.28

 **/

int

g_application_command_line_get_exit_status (GApplicationCommandLine *cmdline)

{

  g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), -1);

  return cmdline->priv->exit_status;

}

/**

 * g_application_command_line_get_platform_data:

 * @cmdline: #GApplicationCommandLine

 *

 * Gets the platform data associated with the invocation of @cmdline.

 *

 * This is a #GVariant dictionary containing information about the

 * context in which the invocation occurred.  It typically contains

 * information like the current working directory and the startup

 * notification ID.

 *

 * For local invocation, it will be %NULL.

 *

 * Returns: (nullable): the platform data, or %NULL

 *

 * Since: 2.28

 **/

GVariant *

g_application_command_line_get_platform_data (GApplicationCommandLine *cmdline)

{

  g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), NULL);

  if (cmdline->priv->platform_data)

    return g_variant_ref (cmdline->priv->platform_data);

  else

      return NULL;

}

/**

 * g_application_command_line_create_file_for_arg:

 * @cmdline: a #GApplicationCommandLine

 * @arg: (type filename): an argument from @cmdline

 *

 * Creates a #GFile corresponding to a filename that was given as part

 * of the invocation of @cmdline.

 *

 * This differs from g_file_new_for_commandline_arg() in that it

 * resolves relative pathnames using the current working directory of

 * the invoking process rather than the local process.

 *

 * Returns: (transfer full): a new #GFile

 *

 * Since: 2.36

 **/

GFile *

g_application_command_line_create_file_for_arg (GApplicationCommandLine *cmdline,

                                                const gchar             *arg)

{

  g_return_val_if_fail (arg != NULL, NULL);

  if (cmdline->priv->cwd)

    return g_file_new_for_commandline_arg_and_cwd (arg, cmdline->priv->cwd);

  g_warning ("Requested creation of GFile for commandline invocation that did not send cwd. "

             "Using cwd of local process to resolve relative path names.");

  return g_file_new_for_commandline_arg (arg);

}