/**
* gjs_context_scan_file_for_js_version:
* @file_path: (type filename): A file path
*
* Like gjs_context_scan_buffer_for_js_version(), but will open
* the file and use the initial 1024 bytes as a buffer.
*
* Returns: A string suitable for use as GjsContext::version property.
*/
const char *
gjs_context_scan_file_for_js_version (const char *file_path)
{
char *utf8_buf;
guint8 buf[1024];
const char *version = NULL;
gssize len;
FILE *f;
f = fopen(file_path, "r");
if (!f)
return NULL;
len = fread(buf, 1, sizeof(buf)-1, f);
fclose(f);
if (len < 0)
return NULL;
buf[len] = '\0';
utf8_buf = _gjs_g_utf8_make_valid((const char*)buf);
version = gjs_context_scan_buffer_for_js_version(utf8_buf, sizeof(buf));
g_free(utf8_buf);
return version;
}
int
main(int argc, char **argv)
{
char *command_line;
GOptionContext *context;
GError *error = NULL;
GjsContext *js_context;
char *script;
const char *filename;
gsize len;
int code;
const char *source_js_version;
context = g_option_context_new(NULL);
/* pass unknown through to the JS script */
g_option_context_set_ignore_unknown_options(context, TRUE);
g_option_context_add_main_entries(context, entries, NULL);
if (!g_option_context_parse(context, &argc, &argv, &error))
g_error("option parsing failed: %s", error->message);
setlocale(LC_ALL, "");
g_type_init();
command_line = g_strjoinv(" ", argv);
g_free(command_line);
if (command != NULL) {
script = command;
source_js_version = gjs_context_scan_buffer_for_js_version(script, 1024);
len = strlen(script);
filename = "<command line>";
} else if (argc <= 1) {
source_js_version = NULL;
script = g_strdup("const Console = imports.console; Console.interact();");
len = strlen(script);
filename = "<stdin>";
} else /*if (argc >= 2)*/ {
error = NULL;
if (!g_file_get_contents(argv[1], &script, &len, &error)) {
g_printerr("%s\n", error->message);
exit(1);
}
source_js_version = gjs_context_scan_buffer_for_js_version(script, 1024);
filename = argv[1];
argc--;
argv++;
}
/* If user explicitly specifies a version, use it */
if (js_version != NULL)
source_js_version = js_version;
if (source_js_version != NULL)
js_context = g_object_new(GJS_TYPE_CONTEXT, "search-path", include_path,
"js-version", source_js_version, NULL);
else
js_context = g_object_new(GJS_TYPE_CONTEXT, "search-path", include_path, NULL);
/* prepare command line arguments */
if (!gjs_context_define_string_array(js_context, "ARGV",
argc - 1, (const char**)argv + 1,
&error)) {
g_printerr("Failed to defined ARGV: %s", error->message);
exit(1);
}
/* evaluate the script */
error = NULL;
if (!gjs_context_eval(js_context, script, len,
filename, &code, &error)) {
g_free(script);
g_printerr("%s\n", error->message);
exit(1);
}
g_free(script);
exit(code);
}
