/*
* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
*
* Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
* Copyright (C) 2006, Quy Tonthat <qtonthat@gmail.com>
* Copyright (C) 2013, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
* Copyright (C) 2015, Rob Norris <rw_norris@hotmail.com>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/**
* SECTION:babel
* @short_description: running external programs and redirecting to TRWLayers.
*
* GPSBabel may not be necessary for everything,
* one can use shell_command option but this will be OS platform specific
*/
#include "viking.h"
#include "gpx.h"
#include "kml.h"
#include "geojson.h"
#include "babel.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/* TODO in the future we could have support for other shells (change command strings), or not use a shell at all */
#define BASH_LOCATION "/bin/bash"
/**
* Path to gpsbabel
*/
static gchar *gpsbabel_loc = NULL;
/**
* Path to unbuffer
*/
static gchar *unbuffer_loc = NULL;
/**
* List of file formats supported by gpsbabel.
*/
static GList *a_babel_file_list = NULL;
/**
* List of devices supported by gpsbabel.
*/
static GList *a_babel_device_list = NULL;
/**
* Run a function on all file formats supporting a given mode.
*/
void a_babel_foreach_file_with_mode (BabelMode mode, GFunc func, gpointer user_data)
{
GList *current;
for ( current = g_list_first (a_babel_file_list) ;
current != NULL ;
current = g_list_next (current) )
{
BabelFile *currentFile = current->data;
/* Check compatibility of modes */
gboolean compat = TRUE;
if (mode.waypointsRead && ! currentFile->mode.waypointsRead) compat = FALSE;
if (mode.waypointsWrite && ! currentFile->mode.waypointsWrite) compat = FALSE;
if (mode.tracksRead && ! currentFile->mode.tracksRead) compat = FALSE;
if (mode.tracksWrite && ! currentFile->mode.tracksWrite) compat = FALSE;
if (mode.routesRead && ! currentFile->mode.routesRead) compat = FALSE;
if (mode.routesWrite && ! currentFile->mode.routesWrite) compat = FALSE;
/* Do call */
if (compat)
func (currentFile, user_data);
}
}
/**
* a_babel_foreach_file_read_any:
* @func: The function to be called on any file format with a read method
* @user_data: Data passed into the function
*
* Run a function on all file formats with any kind of read method
* (which is almost all but not quite - e.g. with GPSBabel v1.4.4 - PalmDoc is write only waypoints)
*/
void a_babel_foreach_file_read_any (GFunc func, gpointer user_data)
{
GList *current;
for ( current = g_list_first (a_babel_file_list) ;
current != NULL ;
current = g_list_next (current) )
{
BabelFile *currentFile = current->data;
// Call function when any read mode found
if ( currentFile->mode.waypointsRead ||
currentFile->mode.tracksRead ||
currentFile->mode.routesRead)
func (currentFile, user_data);
}
}
/**
* a_babel_convert:
* @vt: The TRW layer to modify. All data will be deleted, and replaced by what gpsbabel outputs.
* @babelargs: A string containing gpsbabel command line filter options. No file types or names should
* be specified.
* @cb: A callback function.
* @user_data: passed along to cb
* @not_used: Must use NULL
*
* This function modifies data in a trw layer using gpsbabel filters. This routine is synchronous;
* that is, it will block the calling program until the conversion is done. To avoid blocking, call
* this routine from a worker thread.
*
* Returns: %TRUE on success
*/
gboolean a_babel_convert( VikTrwLayer *vt, const char *babelargs, BabelStatusFunc cb, gpointer user_data, gpointer not_used )
{
gboolean ret = FALSE;
gchar *bargs = g_strconcat(babelargs, " -i gpx", NULL);
gchar *name_src = a_gpx_write_tmp_file ( vt, NULL );
if ( name_src ) {
ProcessOptions po = { bargs, name_src, NULL, NULL, NULL };
ret = a_babel_convert_from ( vt, &po, cb, user_data, not_used );
(void)g_remove(name_src);
g_free(name_src);
}
g_free(bargs);
return ret;
}
/**
* Perform any cleanup actions once GPSBabel has completed running
*/
static void babel_watch ( GPid pid,
gint status,
gpointer user_data )
{
g_spawn_close_pid ( pid );
}
/**
* babel_general_convert:
* @args: The command line arguments passed to GPSBabel
* @cb: callback that is run for each line of GPSBabel output and at completion of the run
* callback may be NULL
* @user_data: passed along to cb
*
* The function to actually invoke the GPSBabel external command
*
* Returns: %TRUE on successful invocation of GPSBabel command
*/
static gboolean babel_general_convert( BabelStatusFunc cb, gchar **args, gpointer user_data )
{
gboolean ret = FALSE;
GPid pid;
GError *error = NULL;
gint babel_stdout;
if ( vik_debug ) {
GString *gstr = g_string_new ( NULL );
g_string_append_printf ( gstr, "%s:", __FUNCTION__ );
for ( guint i=0; args[i]; i++ )
g_string_append_printf ( gstr, " %s", args[i] );
g_message ( "%s", gstr->str );
g_string_free ( gstr, TRUE );
}
if (!g_spawn_async_with_pipes (NULL, args, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, &pid, NULL, &babel_stdout, NULL, &error)) {
g_warning ("Async command failed: %s", error->message);
g_error_free(error);
ret = FALSE;
} else {
gchar line[512];
FILE *diag;
diag = fdopen(babel_stdout, "r");
setvbuf(diag, NULL, _IONBF, 0);
while (fgets(line, sizeof(line), diag)) {
if ( cb )
cb(BABEL_DIAG_OUTPUT, line, user_data);
}
if ( cb )
cb(BABEL_DONE, NULL, user_data);
fclose(diag);
diag = NULL;
g_child_watch_add ( pid, (GChildWatchFunc) babel_watch, NULL );
// Useful to see in case of any errors,
// although they don't always occur on the last line output
g_debug ( "%s: last received line is=\"%s\"", __FUNCTION__, line );
ret = TRUE;
}
return ret;
}
/**
* babel_general_convert_from:
* @vtl: The TrackWaypoint Layer to save the data into
* If it is null it signifies that no data is to be processed,
* however the gpsbabel command is still ran as it can be for non-data related options eg:
* for use with the power off command - 'command_off'
* @cb: callback that is run upon new data from STDOUT (?)
* (TODO: STDERR would be nice since we usually redirect STDOUT)
* @user_data: passed along to cb
*
* Runs args[0] with the arguments and uses the GPX module
* to import the GPX data into layer vt. Assumes that upon
* running the command, the data will appear in the (usually
* temporary) file name_dst.
*
* Returns: %TRUE on success
*/
static gboolean babel_general_convert_from( VikTrwLayer *vt, BabelStatusFunc cb, gchar **args, const gchar *name_dst, gpointer user_data )
{
gboolean ret = FALSE;
FILE *f = NULL;
if (babel_general_convert(cb, args, user_data)) {
/* No data actually required but still need to have run gpsbabel anyway
- eg using the device power command_off */
if ( vt == NULL )
return TRUE;
f = g_fopen(name_dst, "r");
if (f) {
gchar *dirpath = g_path_get_dirname ( name_dst );
ret = a_gpx_read_file ( vt, f, dirpath, FALSE );
g_free ( dirpath );
fclose(f);
}
}
return ret;
}
/**
* a_babel_convert_from_filter:
* @vt: The TRW layer to place data into. Duplicate items will be overwritten.
* @babelargs: A string containing gpsbabel command line options. This string
* must include the input file type (-i) option.
* @from the file name to convert from
* @babelfilters: A string containing gpsbabel filter command line options
* @cb: Optional callback function. Same usage as in a_babel_convert().
* @user_data: passed along to cb
* @not_used: Must use NULL
*
* Loads data into a trw layer from a file, using gpsbabel. This routine is synchronous;
* that is, it will block the calling program until the conversion is done. To avoid blocking, call
* this routine from a worker thread.
*
* Returns: %TRUE on success
*/
gboolean a_babel_convert_from_filter( VikTrwLayer *vt, const char *babelargs, const char *from, const char *babelfilters, BabelStatusFunc cb, gpointer user_data, gpointer not_used )
{
int i,j;
int fd_dst;
gchar *name_dst = NULL;
gboolean ret = FALSE;
gchar *args[64];
if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
g_debug ("%s: temporary file: %s", __FUNCTION__, name_dst);
close(fd_dst);
if (gpsbabel_loc ) {
gchar **sub_args = g_strsplit(babelargs, " ", 0);
gchar **sub_filters = NULL;
i = 0;
if (unbuffer_loc)
args[i++] = unbuffer_loc;
args[i++] = gpsbabel_loc;
for (j = 0; sub_args[j]; j++) {
/* some version of gpsbabel can not take extra blank arg */
if (sub_args[j][0] != '\0')
args[i++] = sub_args[j];
}
args[i++] = "-f";
args[i++] = (char *)from;
if (babelfilters) {
sub_filters = g_strsplit(babelfilters, " ", 0);
for (j = 0; sub_filters[j]; j++) {
/* some version of gpsbabel can not take extra blank arg */
if (sub_filters[j][0] != '\0')
args[i++] = sub_filters[j];
}
}
args[i++] = "-o";
args[i++] = "gpx";
args[i++] = "-F";
args[i++] = name_dst;
args[i] = NULL;
ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
g_strfreev(sub_args);
if (sub_filters)
g_strfreev(sub_filters);
} else
g_critical("gpsbabel not found in PATH");
(void)g_remove(name_dst);
g_free(name_dst);
}
return ret;
}
/**
* a_babel_convert_from_shellcommand:
* @vt: The #VikTrwLayer where to insert the collected data
* @input_cmd: the command to run
* @input_file_type:
* @cb: Optional callback function. Same usage as in a_babel_convert().
* @user_data: passed along to cb
* @not_used: Must use NULL
*
* Runs the input command in a shell (bash) and optionally uses GPSBabel to convert from input_file_type.
* If input_file_type is %NULL, doesn't use GPSBabel. Input must be GPX (or Geocaching *.loc)
*
* Uses babel_general_convert_from() to actually run the command. This function
* prepares the command and temporary file, and sets up the arguments for bash.
*/
gboolean a_babel_convert_from_shellcommand ( VikTrwLayer *vt, const char *input_cmd, const char *input_file_type, BabelStatusFunc cb, gpointer user_data, gpointer not_used )
{
int fd_dst;
gchar *name_dst = NULL;
gboolean ret = FALSE;
gchar **args;
if ((fd_dst = g_file_open_tmp("tmp-viking.XXXXXX", &name_dst, NULL)) >= 0) {
g_debug ("%s: temporary file: %s", __FUNCTION__, name_dst);
gchar *shell_command;
if ( input_file_type )
shell_command = g_strdup_printf("%s | %s -i %s -f - -o gpx -F %s",
input_cmd, gpsbabel_loc, input_file_type, name_dst);
else
shell_command = g_strdup_printf("%s > %s", input_cmd, name_dst);
g_debug("%s: %s", __FUNCTION__, shell_command);
close(fd_dst);
args = g_malloc(sizeof(gchar *)*4);
args[0] = BASH_LOCATION;
args[1] = "-c";
args[2] = shell_command;
args[3] = NULL;
ret = babel_general_convert_from ( vt, cb, args, name_dst, user_data );
g_free ( args );
g_free ( shell_command );
(void)g_remove(name_dst);
g_free(name_dst);
}
return ret;
}
/**
* a_babel_convert_from_url_filter:
* @vt: The #VikTrwLayer where to insert the collected data
* @url: the URL to fetch
* @input_type: If input_type is %NULL, input must be GPX.
* @babelfilters: The filter arguments to pass to gpsbabel
* @cb: Optional callback function. Same usage as in a_babel_convert().
* @user_data: Passed along to cb
* @options: Download options. If %NULL then default download options will be used.
*
* Download the file pointed by the URL and optionally uses GPSBabel to convert from input_type.
* If input_type and babelfilters are %NULL, gpsbabel is not used.
* If input_type is 'gpx' or 'kml' or 'geojson-osrm' then we will use our own native parsers.
* NB TCX and indeed Vikings own files aren't available via this method since they can only be
* loaded into an aggregate layer (i.e. not into a %VikTrwLayer which is all that is available here)
*
* Returns: %TRUE on successful invocation of GPSBabel or read of the downloaded file
*
*/
gboolean a_babel_convert_from_url_filter ( VikTrwLayer *vt, const char *url, const char *input_type, const char *babelfilters, BabelStatusFunc cb, gpointer user_data, DownloadFileOptions *options )
{
// If no download options specified, use defaults:
DownloadFileOptions myoptions = { FALSE, FALSE, NULL, 2, NULL, NULL, NULL, FALSE, FALSE, NULL };
if ( options )
myoptions = *options;
gint fd_src;
int fetch_ret;
gboolean ret = FALSE;
gchar *name_src = NULL;
gchar *babelargs = NULL;
g_debug("%s: input_type=%s url=%s", __FUNCTION__, input_type, url);
if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
g_debug ("%s: temporary file: %s", __FUNCTION__, name_src);
close(fd_src);
(void)g_remove(name_src);
fetch_ret = a_http_download_get_url(url, "", name_src, &myoptions, NULL);
if (fetch_ret == DOWNLOAD_SUCCESS) {
gboolean do_gpx = FALSE;
gboolean do_kml = FALSE;
gboolean do_gjo = FALSE;
if ( g_strcmp0(input_type, "gpx") == 0 )
do_gpx = TRUE;
if ( g_strcmp0(input_type, "kml") == 0 )
do_kml = TRUE;
if ( g_strcmp0(input_type, "viking-geojson-osrm") == 0 )
do_gjo = TRUE;
if ( !do_gpx && !do_kml && !do_gjo ) {
if (input_type != NULL || babelfilters != NULL) {
babelargs = (input_type) ? g_strdup_printf(" -i %s", input_type) : g_strdup("");
ret = a_babel_convert_from_filter( vt, babelargs, name_src, babelfilters, NULL, NULL, NULL );
} else
// No input_type specified - resort to GPX
do_gpx = TRUE;
}
if ( do_gpx || do_kml || do_gjo ) {
/* Process directly the retrieved file */
g_debug ( "%s: directly read file %s", __FUNCTION__, name_src );
FILE *f = g_fopen(name_src, "r");
if (f) {
gchar *dirpath = g_path_get_dirname ( name_src );
if ( do_kml ) {
ret = a_kml_read_file ( vt, f );
fclose(f);
}
else if ( do_gjo ) {
fclose(f);
ret = a_geojson_read_file_OSRM ( vt, name_src );
}
else {
ret = a_gpx_read_file ( vt, f, dirpath, FALSE );
fclose(f);
}
g_free ( dirpath );
}
// Try to avoid adding the description if URL is OAuth signed
if ( !g_ascii_strncasecmp(url, "?oauth_consumer_key=", 20) ) {
VikTRWMetadata *meta = vik_trw_layer_get_metadata(vt);
if ( meta && !meta->description ) {
meta->description = g_strdup ( url );
}
}
}
}
(void)util_remove(name_src);
g_free(babelargs);
g_free(name_src);
}
return ret;
}
/**
* a_babel_convert_from:
* @vt: The TRW layer to place data into. Duplicate items will be overwritten.
* @process_options: The options to control the appropriate processing function. See #ProcessOptions for more detail
* @cb: Optional callback function. Same usage as in a_babel_convert().
* @user_data: passed along to cb
* @download_options: If downloading from a URL use these options (may be NULL)
*
* Loads data into a trw layer from a file, using gpsbabel. This routine is synchronous;
* that is, it will block the calling program until the conversion is done. To avoid blocking, call
* this routine from a worker thread.
*
* Returns: %TRUE on success
*/
gboolean a_babel_convert_from ( VikTrwLayer *vt, ProcessOptions *process_options, BabelStatusFunc cb, gpointer user_data, DownloadFileOptions *download_options )
{
if ( !process_options ) return FALSE;
if ( process_options->url )
return a_babel_convert_from_url_filter ( vt, process_options->url, process_options->input_file_type, process_options->babel_filters, cb, user_data, download_options );
if ( process_options->babelargs )
return a_babel_convert_from_filter ( vt, process_options->babelargs, process_options->filename, process_options->babel_filters, cb, user_data, download_options );
if ( process_options->shell_command )
return a_babel_convert_from_shellcommand ( vt, process_options->shell_command, process_options->input_file_type, cb, user_data, download_options );
return FALSE;
}
static gboolean babel_general_convert_to( VikTrwLayer *vt, VikTrack *trk, BabelStatusFunc cb, gchar **args, const gchar *name_src, gpointer user_data )
{
// Now strips out invisible tracks and waypoints
if (!a_file_export(vt, name_src, FILE_TYPE_GPX, trk, FALSE)) {
g_critical("Error exporting to %s", name_src);
return FALSE;
}
return babel_general_convert (cb, args, user_data);
}
/**
* a_babel_convert_to:
* @vt: The TRW layer from which data is taken.
* @track: Operate on the individual track if specified. Use NULL when operating on a TRW layer
* @babelargs: A string containing gpsbabel output command line options.
* (i.e. must the contain '-o' file type and possibly any filter parameters)
* @to: Filename or device the data is written to.
* @cb: Optional callback function. Same usage as in a_babel_convert.
* @user_data: passed along to cb
*
* Exports data using gpsbabel. This routine is synchronous;
* that is, it will block the calling program until the conversion is done. To avoid blocking, call
* this routine from a worker thread.
*
* Returns: %TRUE on successful invocation of GPSBabel command
*/
gboolean a_babel_convert_to( VikTrwLayer *vt, VikTrack *track, const char *babelargs, const char *to, BabelStatusFunc cb, gpointer user_data )
{
int i,j;
int fd_src;
gchar *name_src = NULL;
gboolean ret = FALSE;
gchar *args[64];
if ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0) {
g_debug ("%s: temporary file: %s", __FUNCTION__, name_src);
close(fd_src);
if (gpsbabel_loc ) {
gchar **sub_args = g_strsplit(babelargs, " ", 0);
i = 0;
if (unbuffer_loc)
args[i++] = unbuffer_loc;
args[i++] = gpsbabel_loc;
args[i++] = "-i";
args[i++] = "gpx";
args[i++] = "-f";
args[i++] = name_src;
for (j = 0; sub_args[j]; j++)
/* some version of gpsbabel can not take extra blank arg */
if (sub_args[j][0] != '\0')
args[i++] = sub_args[j];
args[i++] = "-F";
args[i++] = (char *)to;
args[i] = NULL;
ret = babel_general_convert_to ( vt, track, cb, args, name_src, user_data );
g_strfreev(sub_args);
} else
g_critical("gpsbabel not found in PATH");
(void)g_remove(name_src);
g_free(name_src);
}
return ret;
}
static void set_mode(BabelMode *mode, gchar *smode)
{
mode->waypointsRead = smode[0] == 'r';
mode->waypointsWrite = smode[1] == 'w';
mode->tracksRead = smode[2] == 'r';
mode->tracksWrite = smode[3] == 'w';
mode->routesRead = smode[4] == 'r';
mode->routesWrite = smode[5] == 'w';
}
/**
* load_feature_parse_line:
*
* Load a single feature stored in the given line.
*/
static void load_feature_parse_line (gchar *line)
{
gchar **tokens = g_strsplit ( line, "\t", 0 );
if ( tokens != NULL
&& tokens[0] != NULL ) {
if ( strcmp("serial", tokens[0]) == 0 ) {
if ( tokens[1] != NULL
&& tokens[2] != NULL
&& tokens[3] != NULL
&& tokens[4] != NULL ) {
BabelDevice *device = g_malloc ( sizeof (BabelDevice) );
set_mode (&(device->mode), tokens[1]);
device->name = g_strdup (tokens[2]);
device->label = g_strndup (tokens[4], 50); // Limit really long label text
a_babel_device_list = g_list_append (a_babel_device_list, device);
if ( vik_verbose )
g_debug ("New gpsbabel device: %s, %d%d%d%d%d%d(%s)",
device->name,
device->mode.waypointsRead, device->mode.waypointsWrite,
device->mode.tracksRead, device->mode.tracksWrite,
device->mode.routesRead, device->mode.routesWrite,
tokens[1]);
} else {
g_warning ( "Unexpected gpsbabel format string: %s", line);
}
} else if ( strcmp("file", tokens[0]) == 0 ) {
if ( tokens[1] != NULL
&& tokens[2] != NULL
&& tokens[3] != NULL
&& tokens[4] != NULL ) {
BabelFile *file = g_malloc ( sizeof (BabelFile) );
set_mode (&(file->mode), tokens[1]);
file->name = g_strdup (tokens[2]);
file->ext = g_strdup (tokens[3]);
file->label = g_strdup (tokens[4]);
a_babel_file_list = g_list_append (a_babel_file_list, file);
if ( vik_verbose )
g_debug ("New gpsbabel file: %s, %d%d%d%d%d%d(%s)",
file->name,
file->mode.waypointsRead, file->mode.waypointsWrite,
file->mode.tracksRead, file->mode.tracksWrite,
file->mode.routesRead, file->mode.routesWrite,
tokens[1]);
} else {
g_warning ( "Unexpected gpsbabel format string: %s", line);
}
} /* else: ignore */
} else {
g_warning ( "Unexpected gpsbabel format string: %s", line);
}
g_strfreev ( tokens );
}
static void load_feature_cb (BabelProgressCode code, gpointer line, gpointer user_data)
{
if (line != NULL)
load_feature_parse_line (line);
}
static gboolean load_feature ()
{
int i;
gboolean ret = FALSE;
gchar *args[4];
if ( gpsbabel_loc ) {
i = 0;
if ( unbuffer_loc )
args[i++] = unbuffer_loc;
args[i++] = gpsbabel_loc;
args[i++] = "-^3";
args[i] = NULL;
ret = babel_general_convert (load_feature_cb, args, NULL);
}
return ret;
}
static VikLayerParamData gb_default ( void ) {
VikLayerParamData vlpd;
#ifdef WINDOWS
// Basic guesses - could use %ProgramFiles% but this is simpler:
if ( g_file_test ( "C:\\Program Files (x86)\\GPSBabel\\gpsbabel.exe", G_FILE_TEST_EXISTS ) )
// 32 bit location on a 64 bit system
vlpd.s = g_strdup ( "C:\\Program Files (x86)\\GPSBabel\\gpsbabel.exe" );
else
vlpd.s = g_strdup ( "C:\\Program Files\\GPSBabel\\gpsbabel.exe" );
#else
vlpd.s = g_strdup ( "gpsbabel" );
#endif
return vlpd;
}
static VikLayerParam prefs[] = {
{ VIK_LAYER_NUM_TYPES, VIKING_PREFERENCES_IO_NAMESPACE "gpsbabel", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("GPSBabel:"), VIK_LAYER_WIDGET_FILEENTRY, NULL, NULL,
N_("Allow setting the specific instance of GPSBabel. You must restart Viking for this value to take effect."), gb_default, NULL, NULL },
};
/**
* a_babel_init:
*
* Just setup preferences first
*/
void a_babel_init ()
{
a_preferences_register ( &prefs[0], (VikLayerParamData){0}, VIKING_PREFERENCES_IO_GROUP_KEY );
}
/**
* a_babel_post_init:
*
* Initialises babel module.
* Mainly check existence of gpsbabel progam
* and load all features available in that version.
*/
void a_babel_post_init ()
{
// Read the current preference
const gchar *gpsbabel = a_preferences_get(VIKING_PREFERENCES_IO_NAMESPACE "gpsbabel")->s;
// If setting is still the UNIX default then lookup in the path - otherwise attempt to use the specified value directly.
if ( g_strcmp0 ( gpsbabel, "gpsbabel" ) == 0 ) {
gpsbabel_loc = g_find_program_in_path( "gpsbabel" );
if ( !gpsbabel_loc )
g_warning( "gpsbabel not found in PATH" );
}
else
gpsbabel_loc = g_strdup ( gpsbabel );
// Unlikely to package unbuffer on Windows so ATM don't even bother trying
// Highly unlikely unbuffer is available on a Windows system otherwise
#ifndef WINDOWS
unbuffer_loc = g_find_program_in_path( "unbuffer" );
if ( !unbuffer_loc )
g_warning( "unbuffer not found in PATH" );
#endif
if ( gpsbabel_loc ) {
if ( !load_feature() ) {
g_warning ( "%s: running gpsbabel to get features failed", __FUNCTION__ );
}
}
}
/**
* a_babel_uninit:
*
* Free resources acquired by a_babel_init.
*/
void a_babel_uninit ()
{
g_free ( gpsbabel_loc );
g_free ( unbuffer_loc );
if ( a_babel_file_list ) {
GList *gl;
for (gl = a_babel_file_list; gl != NULL; gl = g_list_next(gl)) {
BabelFile *file = gl->data;
g_free ( file->name );
g_free ( file->ext );
g_free ( file->label );
g_free ( gl->data );
}
g_list_free ( a_babel_file_list );
}
if ( a_babel_device_list ) {
GList *gl;
for (gl = a_babel_device_list; gl != NULL; gl = g_list_next(gl)) {
BabelDevice *device = gl->data;
g_free ( device->name );
g_free ( device->label );
g_free ( gl->data );
}
g_list_free ( a_babel_device_list );
}
}
/**
* a_babel_available:
*
* Indicates if babel is available or not.
*
* Returns: true if babel available
*/
gboolean a_babel_available ()
{
return a_babel_device_list != NULL;
}
/**
* a_babel_file_list_get:
*
* Returns: String list of babel file formats. Maybe NULL.
*/
GList *a_babel_file_list_get ()
{
return a_babel_file_list;
}
/**
* a_babel_device_list_get:
*
* Returns: String list of babel devices. Maybe NULL.
*/
GList *a_babel_device_list_get ()
{
return a_babel_device_list;
}