2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* babel.c: running external programs and redirecting to TRWLayers.
23 * GPSBabel may not be necessary for everything -- for instance,
24 * use a_babel_convert_from_shellcommand with input_file_type == NULL
25 * for an external program that outputs GPX.
33 /* in the future we could have support for other shells (change command strings), or not use a shell at all */
34 #define BASH_LOCATION "/bin/bash"
36 gboolean
a_babel_convert( VikTrwLayer
*vt
, const char *babelargs
, BabelStatusFunc cb
, gpointer user_data
)
42 gchar
*bargs
= g_strconcat(babelargs
, " -i gpx", NULL
);
44 if ((fd_src
= g_file_open_tmp("tmp-viking.XXXXXX", &name_src
, NULL
)) < 0) {
47 f
= fdopen(fd_src
, "w");
48 a_gpx_write_file(vt
, f
);
50 ret
= a_babel_convert_from ( vt
, bargs
, cb
, name_src
, user_data
);
59 /* Runs args[0] with the arguments and uses the GPX module
60 * to import the GPX data into layer vt. Assumes that upon
61 * running the command, the data will appear in the (usually
62 * temporary) file name_dst.
64 * cb: callback that is run upon new data from STDOUT (?)
65 * (TODO: STDERR would be nice since we usually redirect STDOUT)
66 * user_data: passed along to cb
68 * returns TRUE on success
70 gboolean
babel_general_convert_from( VikTrwLayer
*vt
, BabelStatusFunc cb
, gchar
**args
, const gchar
*name_dst
, gpointer user_data
)
74 gint babel_stdin
, babel_stdout
, babel_stderr
;
78 if (!g_spawn_async_with_pipes (NULL
, args
, NULL
, 0, NULL
, NULL
, &pid
, &babel_stdin
, &babel_stdout
, &babel_stderr
, NULL
)) {
79 // if (!g_spawn_async_with_pipes (NULL, args, NULL, 0, NULL, NULL, NULL, &babel_stdin, &babel_stdout, NULL, NULL)) {
84 diag
= fdopen(babel_stdout
, "r");
85 setvbuf(diag
, NULL
, _IONBF
, 0);
87 while (fgets(line
, sizeof(line
), diag
)) {
89 cb(BABEL_DIAG_OUTPUT
, line
, user_data
);
92 cb(BABEL_DONE
, NULL
, user_data
);
94 waitpid(pid
, NULL
, 0);
95 g_spawn_close_pid(pid
);
97 f
= fopen(name_dst
, "r");
98 a_gpx_read_file ( vt
, f
);
106 gboolean
a_babel_convert_from( VikTrwLayer
*vt
, const char *babelargs
, BabelStatusFunc cb
, const char *from
, gpointer user_data
)
111 gboolean ret
= FALSE
;
114 if ((fd_dst
= g_file_open_tmp("tmp-viking.XXXXXX", &name_dst
, NULL
)) < 0) {
120 gpsbabel_loc
= g_find_program_in_path("gpsbabel");
123 gchar
*unbuffer_loc
= g_find_program_in_path("unbuffer");
124 cmd
= g_strdup_printf ( "%s%s%s %s -o gpx %s %s",
125 unbuffer_loc
? unbuffer_loc
: "",
126 unbuffer_loc
? " " : "",
133 g_free ( unbuffer_loc
);
135 args
= g_strsplit(cmd
, " ", 0);
136 ret
= babel_general_convert_from ( vt
, cb
, args
, name_dst
, user_data
);
147 /* Runs the input command in a shell (bash) and optionally uses GPSBabel to convert from input_file_type.
148 * If input_file_type is NULL, doesn't use GPSBabel. Input must be GPX (or Geocaching *.loc)
150 * Uses babel_general_convert_from to actually run the command. This function
151 * prepares the command and temporary file, and sets up the arguments for bash.
153 gboolean
a_babel_convert_from_shellcommand ( VikTrwLayer
*vt
, const char *input_cmd
, const char *input_file_type
, BabelStatusFunc cb
, gpointer user_data
)
157 gboolean ret
= FALSE
;
160 if ((fd_dst
= g_file_open_tmp("tmp-viking.XXXXXX", &name_dst
, NULL
)) < 0) {
163 gchar
*shell_command
;
164 if ( input_file_type
)
165 shell_command
= g_strdup_printf("%s | gpsbabel -i %s -f - -o gpx -F %s", input_cmd
, input_file_type
, name_dst
);
167 shell_command
= g_strdup_printf("%s > %s", input_cmd
, name_dst
);
169 g_debug("%s: %s", __FUNCTION__
, shell_command
);
172 args
= g_malloc(sizeof(gchar
*)*4);
173 args
[0] = BASH_LOCATION
;
175 args
[2] = shell_command
;
178 ret
= babel_general_convert_from ( vt
, cb
, args
, name_dst
, user_data
);
180 g_free ( shell_command
);
188 gboolean
babel_general_convert_to( VikTrwLayer
*vt
, BabelStatusFunc cb
, gchar
**args
, const gchar
*name_src
, gpointer user_data
)
192 gint babel_stdin
, babel_stdout
, babel_stderr
;
194 if (!a_file_export(vt
, name_src
, FILE_TYPE_GPX
)) {
195 g_warning("%s(): error exporting to %s", __FUNCTION__
, name_src
);
199 if (!g_spawn_async_with_pipes (NULL
, args
, NULL
, 0, NULL
, NULL
, &pid
, &babel_stdin
, &babel_stdout
, &babel_stderr
, NULL
)) {
204 diag
= fdopen(babel_stdout
, "r");
205 setvbuf(diag
, NULL
, _IONBF
, 0);
207 while (fgets(line
, sizeof(line
), diag
)) {
209 cb(BABEL_DIAG_OUTPUT
, line
, user_data
);
212 cb(BABEL_DONE
, NULL
, user_data
);
214 waitpid(pid
, NULL
, 0);
215 g_spawn_close_pid(pid
);
223 gboolean
a_babel_convert_to( VikTrwLayer
*vt
, const char *babelargs
, BabelStatusFunc cb
, const char *to
, gpointer user_data
)
228 gboolean ret
= FALSE
;
231 if ((fd_src
= g_file_open_tmp("tmp-viking.XXXXXX", &name_src
, NULL
)) < 0) {
237 gpsbabel_loc
= g_find_program_in_path("gpsbabel");
240 gchar
*unbuffer_loc
= g_find_program_in_path("unbuffer");
241 cmd
= g_strdup_printf ( "%s%s%s %s -i gpx %s %s",
242 unbuffer_loc
? unbuffer_loc
: "",
243 unbuffer_loc
? " " : "",
250 g_free ( unbuffer_loc
);
251 g_debug ( "%s: %s", __FUNCTION__
, cmd
);
252 args
= g_strsplit(cmd
, " ", 0);
253 ret
= babel_general_convert_to ( vt
, cb
, args
, name_src
, user_data
);