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#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#include "options.h"
#include "bindings.h"
#include "logging.h"
#include "lua-script/script.h"
struct settings {
const char *template_dir;
};
#define CHECK_LUA_ERROR() \
do { \
if (error != 0) { \
argent_log(FATAL, "lua_error: %s", lua_tostring(L, -1)); \
lua_close(L); \
return error; \
} \
} while(0)
int hs_call(lua_State *L, int nargs, int nret);
int main(int argc, char **argv)
{
argent_log(DEBUG, "parse command-line options");
struct argent_options opts;
int error = parse_options(&opts, argc, argv);
if (error)
// error of '2' indicates -h was passed
return error == 2 ? 0 : 1;
argent_log(INFO, "log level: %s", level_string(argent_log_level));
argent_log(INFO, "configuration file: %s", opts.conf_filename);
if (opts.script_filename != NULL) {
argent_log(INFO, "script override: %s", opts.script_filename);
}
argent_log(DEBUG, "create lua state");
lua_State *L = luaL_newstate();
luaL_openlibs(L);
argent_log(DEBUG, "create argent table");
luaL_Reg tbl[] = {
{"markdown", markdown},
{"currentWorkingDirectory", current_working_directory},
{"scanDirectory", scan_directory},
{"createDirectory", create_directory},
{"copyFile", copy_file},
{"log", argent_log_lua},
{NULL, NULL},
};
luaL_register(L, "argent", tbl);
// load argent lua script
argent_log(DEBUG, "load main lua script");
if (opts.script_filename == NULL) {
error = luaL_dostring(L, argent_script);
CHECK_LUA_ERROR();
}
else {
error = luaL_dofile(L, opts.script_filename);
CHECK_LUA_ERROR();
if (!lua_isfunction(L, -1)) {
argent_log(FATAL, "override script '%s' did not return a function!", opts.script_filename);
return 1;
}
}
// load configuration file
argent_log(DEBUG, "load configuration file");
error = luaL_loadfile(L, opts.conf_filename);
CHECK_LUA_ERROR();
// push config table to stack
argent_log(DEBUG, "run configuration file");
error = hs_call(L, 0, 1);
CHECK_LUA_ERROR();
// run argent script
argent_log(DEBUG, "run main lua script");
error = hs_call(L, 1, 0);
CHECK_LUA_ERROR();
argent_log(DEBUG, "close lua state");
lua_close(L);
return 0;
}
int hs_traceback(lua_State *L)
{
if (!lua_isstring(L, 1))
/* 'message' is not a string, keep intact */
return 1;
lua_getglobal(L, "debug");
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if (!lua_isfunction(L, -1)) {
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1);
lua_pushinteger(L, 2);
lua_call(L, 2, 1);
return 1;
}
int hs_call(lua_State *L, int nargs, int nret)
{
int traceback_pos = lua_gettop(L) - nargs;
lua_pushcfunction(L, hs_traceback);
lua_insert(L, traceback_pos);
int result = lua_pcall(L, nargs, nret, traceback_pos);
lua_remove(L, traceback_pos);
return result;
}
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