int
capture_output_to_menu(FileView *view, const char cmd[], menu_info *m)
{
FILE *file, *err;
char *line = NULL;
int x;
pid_t pid;
LOG_INFO_MSG("Capturing output of the command to a menu: %s", cmd);
pid = background_and_capture((char *)cmd, &file, &err);
if(pid == (pid_t)-1)
{
show_error_msgf("Trouble running command", "Unable to run: %s", cmd);
return 0;
}
show_progress("", 0);
ui_cancellation_reset();
ui_cancellation_enable();
wait_for_data_from(pid, file, 0);
x = 0;
while((line = read_line(file, line)) != NULL)
{
char *expanded_line;
show_progress("Loading menu", 1000);
m->items = realloc(m->items, sizeof(char *)*(x + 1));
expanded_line = expand_tabulation_a(line, cfg.tab_stop);
if(expanded_line != NULL)
{
m->items[x++] = expanded_line;
}
wait_for_data_from(pid, file, 0);
}
m->len = x;
ui_cancellation_disable();
fclose(file);
print_errors(err);
if(ui_cancellation_requested())
{
append_to_string(&m->title, "(cancelled) ");
append_to_string(&m->empty_msg, " (cancelled)");
}
return display_menu(m, view);
}
/* Executes the cmd ignoring its output. */
static void
output_to_nowhere(const char cmd[])
{
FILE *file, *err;
int error;
setup_shellout_env();
error = (background_and_capture((char *)cmd, 1, &file, &err) == (pid_t)-1);
cleanup_shellout_env();
if(error)
{
show_error_msgf("Trouble running command", "Unable to run: %s", cmd);
return;
}
/* FIXME: better way of doing this would be to redirect these streams to
* /dev/null rather than closing them, but not sure about Windows (NUL
* device might work). */
fclose(file);
fclose(err);
}
/* Executes the cmd and displays its output on the status bar. */
static void
output_to_statusbar(const char cmd[])
{
FILE *file, *err;
char buf[2048];
char *lines;
size_t len;
int error;
setup_shellout_env();
error = (background_and_capture((char *)cmd, 1, &file, &err) == (pid_t)-1);
cleanup_shellout_env();
if(error)
{
show_error_msgf("Trouble running command", "Unable to run: %s", cmd);
return;
}
lines = NULL;
len = 0;
while(fgets(buf, sizeof(buf), file) == buf)
{
char *p;
chomp(buf);
p = realloc(lines, len + 1 + strlen(buf) + 1);
if(p != NULL)
{
lines = p;
len += sprintf(lines + len, "%s%s", (len == 0) ? "": "\n", buf);
}
}
fclose(file);
fclose(err);
status_bar_message((lines == NULL) ? "" : lines);
free(lines);
}
