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#include "config.h"
/* The Lua runtime component of the EFL */
#include <getopt.h>
#include "main.h"
typedef struct Arg_Data
{
int type;
const char *value;
} Arg_Data;
enum
{
ARG_CODE = 0,
ARG_LIBRARY,
ARG_LIBDIR
};
static Eina_List *elua_modlist = NULL;
static int elua_require_ref = LUA_REFNIL;
static int elua_appload_ref = LUA_REFNIL;
static const char *elua_progname = NULL;
static Eina_Prefix *elua_prefix = NULL;
int el_log_domain = -1;
static void
elua_errmsg(const char *pname, const char *msg)
{
ERR("%s%s%s", pname ? pname : "", pname ? ": " : "", msg);
}
static int
elua_report(lua_State *L, int status)
{
if (status && !lua_isnil(L, -1))
{
const char *msg = lua_tostring(L, -1);
elua_errmsg(elua_progname, msg ? msg : "(non-string error)");
lua_pop(L, 1);
}
return status;
}
static int
elua_traceback(lua_State *L)
{
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;
}
static int
elua_docall(lua_State *L, int narg, int nret)
{
int status;
int bs = lua_gettop(L) - narg;
lua_pushcfunction(L, elua_traceback);
lua_insert(L, bs);
status = lua_pcall(L, narg, nret, bs);
lua_remove(L, bs);
if (status)
lua_gc(L, LUA_GCCOLLECT, 0);
return status;
}
static int
elua_getargs(lua_State *L, int argc, char **argv, int n)
{
int i;
int narg = argc - (n + 1);
luaL_checkstack(L, narg + 3, "too many arguments to script");
for (i = n + 1; i < argc; ++i)
{
lua_pushstring(L, argv[i]);
}
lua_createtable(L, narg, n + 1);
for (i = 0; i < argc; ++i)
{
lua_pushstring(L, argv[i]);
lua_rawseti(L, -2, i - n);
}
return narg;
}
static int
elua_init_module(lua_State *L)
{
if (!lua_isnoneornil(L, 1))
{
lua_pushvalue(L, 1);
lua_call(L, 0, 0);
}
if (!lua_isnoneornil(L, 2))
{
lua_pushvalue(L, 2);
elua_modlist = eina_list_append(elua_modlist,
(void*)(size_t)luaL_ref(L, LUA_REGISTRYINDEX));
}
return 0;
}
static int
elua_register_require(lua_State *L)
{
const char *corepath = lua_touserdata(L, lua_upvalueindex(1));
const char *modpath = lua_touserdata(L, lua_upvalueindex(2));
const char *appspath = lua_touserdata(L, lua_upvalueindex(3));
Eina_List *largs = lua_touserdata(L, lua_upvalueindex(4)), *l = NULL;
Eina_Bool noenv = lua_toboolean (L, lua_upvalueindex(5));
Arg_Data *data = NULL;
char corepathbuf[PATH_MAX], modpathbuf[PATH_MAX], appspathbuf[PATH_MAX];
int n = 3;
lua_pushvalue(L, 1);
elua_require_ref = luaL_ref(L, LUA_REGISTRYINDEX);
lua_pushvalue(L, 2);
elua_appload_ref = luaL_ref(L, LUA_REGISTRYINDEX);
if (getenv("EFL_RUN_IN_TREE"))
{
corepath = PACKAGE_SRC_DIR "/src/bin/elua/core";
modpath = PACKAGE_SRC_DIR "/src/bin/elua/modules";
appspath = PACKAGE_SRC_DIR "/src/bin/elua/apps";
}
else
{
if (!corepath)
{
if (noenv || !(corepath = getenv("ELUA_CORE_DIR")) || !corepath[0])
{
corepath = corepathbuf;
snprintf(corepathbuf, sizeof(corepathbuf), "%s/core",
eina_prefix_data_get(elua_prefix));
}
}
if (!modpath)
{
if (noenv || !(modpath = getenv("ELUA_MODULES_DIR")) || !modpath[0])
{
modpath = modpathbuf;
snprintf(modpathbuf, sizeof(modpathbuf), "%s/modules",
eina_prefix_data_get(elua_prefix));
}
}
if (!appspath)
{
if (noenv || !(appspath = getenv("ELUA_APPS_DIR")) || !appspath[0])
{
appspath = appspathbuf;
snprintf(appspathbuf, sizeof(appspathbuf), "%s/apps",
eina_prefix_data_get(elua_prefix));
}
}
}
lua_pushfstring(L, "%s/?.lua;", corepath);
EINA_LIST_FOREACH(largs, l, data)
{
if (data->type != ARG_LIBDIR) continue;
lua_pushfstring(L, "%s/?.lua;", data->value);
++n;
}
lua_pushfstring(L, "%s/?.eo.lua;", modpath);
lua_pushfstring(L, "%s/?.lua;", modpath);
lua_pushvalue(L, 3);
lua_concat(L, n + 1);
lua_pushfstring(L, "%s/?.lua;", appspath);
lua_pushvalue(L, 4);
lua_concat(L, 2);
return 2;
}
static int
elua_dolib(lua_State *L, const char *libname)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, elua_require_ref);
lua_pushstring(L, libname);
return elua_report(L, lua_pcall(L, 1, 0, 0));
}
static int
elua_dofile(lua_State *L, const char *fname)
{
return elua_report(L, elua_loadfile(L, fname) || elua_docall(L, 0, 1));
}
static int
elua_dostr(lua_State *L, const char *chunk, const char *chname)
{
return elua_report(L, luaL_loadbuffer(L, chunk, strlen(chunk), chname)
|| elua_docall(L, 0, 0));
}
static Eina_Bool
elua_loadapp(lua_State *L, const char *appname)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, elua_appload_ref);
lua_pushstring(L, appname);
lua_call(L, 1, 2);
if (lua_isnil(L, -2))
{
lua_remove(L, -2);
return EINA_FALSE;
}
lua_pop(L, 1);
return EINA_TRUE;
}
static int
elua_doscript(lua_State *L, int argc, char **argv, int n, int *quit)
{
int status;
const char *fname = argv[n];
int narg = elua_getargs(L, argc, argv, n);
lua_setglobal(L, "arg");
if (fname[0] == '-' && !fname[1])
{
fname = NULL;
}
if (fname)
{
/* check if there is a file of that name */
FILE *f = fopen(fname, "r");
if (f)
{
fclose(f);
status = elua_loadfile(L, fname);
}
else
status = !elua_loadapp(L, fname);
}
else
{
status = elua_loadfile(L, fname);
}
lua_insert(L, -(narg + 1));
if (!status)
{
status = elua_docall(L, narg, 1);
}
else
{
lua_pop(L, narg);
}
if (!status)
{
*quit = lua_toboolean(L, -1);
lua_pop(L, 1);
}
return elua_report(L, status);
}
void
elua_bin_shutdown(lua_State *L, int c)
{
void *data;
INF("elua shutdown");
EINA_LIST_FREE(elua_modlist, data)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, (size_t)data);
lua_call(L, 0, 0);
}
if (elua_prefix) eina_prefix_free(elua_prefix);
if (L) lua_close(L);
if (el_log_domain != EINA_LOG_DOMAIN_GLOBAL)
eina_log_domain_unregister(el_log_domain);
elua_shutdown();
exit(c);
}
static int elua_cb_ref = LUA_REFNIL;
static lua_State *elua_state = NULL;
static void
elua_smart_cb_wrapper(void *data, void *obj EINA_UNUSED, void *einfo EINA_UNUSED)
{
int idx = (size_t)data;
lua_rawgeti(elua_state, LUA_REGISTRYINDEX, elua_cb_ref);
lua_rawgeti(elua_state, -1, idx);
lua_call(elua_state, 0, 0);
lua_pop(elua_state, 1);
}
static int
elua_register_callbacks(lua_State *L)
{
union { void (*fptr)(void*, void*, void*); void *ptr; } u;
lua_pushvalue(L, 1);
elua_cb_ref = luaL_ref(L, LUA_REGISTRYINDEX);
u.fptr = elua_smart_cb_wrapper;
lua_pushlightuserdata(L, u.ptr);
return 1;
}
struct Main_Data
{
int argc;
char **argv;
int status;
};
int elua_popen(lua_State *L);
const luaL_reg cutillib[] =
{
{ "init_module" , elua_init_module },
{ "register_callbacks", elua_register_callbacks },
{ "popenv" , elua_popen },
{ NULL , NULL }
};
static int
elua_gettext_bind_textdomain(lua_State *L)
{
#ifdef ENABLE_NLS
const char *textdomain = luaL_checkstring(L, 1);
const char *dirname = luaL_checkstring(L, 2);
const char *ret;
if (!textdomain[0] || !strcmp(textdomain, PACKAGE))
{
lua_pushnil(L);
lua_pushliteral(L, "invalid textdomain");
return 2;
}
if (!(ret = bindtextdomain(textdomain, dirname)))
{
lua_pushnil(L);
lua_pushstring(L, strerror(errno));
return 2;
}
bind_textdomain_codeset(textdomain, "UTF-8");
lua_pushstring(L, ret);
return 1;
#else
lua_pushliteral(L, "");
return 1;
#endif
}
const luaL_reg gettextlib[] =
{
{ "bind_textdomain", elua_gettext_bind_textdomain },
{ NULL, NULL }
};
static void
elua_print_help(const char *pname, FILE *stream)
{
fprintf(stream, "Usage: %s [OPTIONS] [SCRIPT [ARGS]]\n\n"
"A main entry for all EFL/LuaJIT powered applications.\n\n"
"The following options are supported:\n\n"
""
" -h, --help Show this message.\n"
" -l, --license Show a license message.\n"
" -C[COREDIR], --core-dir=[COREDIR] Elua core directory path.\n"
" -M[MODDIR], --modules-dir=[MODDIR] Elua modules directory path.\n"
" -A[APPDIR], --apps-dir=[APPDIR] Elua applications directory path.\n"
" -e[CODE], --execute=[CODE] Execute string 'code'.\n"
" -l[LIBRARY], --library=[LIBRARY] Require library 'library'.\n"
" -I[DIR], --lib-dir=[DIR] Append an additional require path.\n"
" -E, --noenv Ignore environment variables.\n", pname);
}
static struct option lopt[] =
{
{ "help" , no_argument , NULL, 'h' },
{ "core-dir" , required_argument, NULL, 'C' },
{ "modules-dir", required_argument, NULL, 'M' },
{ "apps-dir" , required_argument, NULL, 'A' },
{ "execute" , required_argument, NULL, 'e' },
{ "library" , required_argument, NULL, 'l' },
{ "lib-dir" , required_argument, NULL, 'I' },
{ "noenv" , no_argument , NULL, 'E' },
{ NULL , 0 , NULL, 0 }
};
/* protected main */
static int
elua_main(lua_State *L)
{
Eina_Bool noenv = EINA_FALSE,
hasexec = EINA_FALSE;
Eina_List *largs = NULL, *l = NULL;
Arg_Data *data = NULL;
const char *coref = NULL;
char *coredir = NULL, *moddir = NULL, *appsdir = NULL;
char modfile[PATH_MAX];
char corefbuf[PATH_MAX];
int ch;
struct Main_Data *m = (struct Main_Data*)lua_touserdata(L, 1);
int argc = m->argc;
char **argv = m->argv;
#ifdef ENABLE_NLS
char *(*dgettextp)(const char*, const char*) = dgettext;
char *(*dngettextp)(const char*, const char*, const char*, unsigned long)
= dngettext;
#endif
elua_progname = (argv[0] && argv[0][0]) ? argv[0] : "elua";
while ((ch = getopt_long(argc, argv, "+LhC:M:A:e:l:I:E", lopt, NULL)) != -1)
{
switch (ch)
{
case 'h':
elua_print_help(elua_progname, stdout);
return 0;
case 'C':
coredir = optarg;
break;
case 'M':
moddir = optarg;
break;
case 'A':
appsdir = optarg;
break;
case 'e':
case 'l':
case 'I':
{
Arg_Data *v = malloc(sizeof(Arg_Data));
v->type = (ch == 'e') ? ARG_CODE : ((ch == 'l')
? ARG_LIBRARY : ARG_LIBDIR);
v->value = optarg;
largs = eina_list_append(largs, v);
break;
}
}
}
INF("arguments parsed");
lua_gc(L, LUA_GCSTOP, 0);
luaL_openlibs(L);
elua_prefix = eina_prefix_new(elua_progname, elua_main, "ELUA", "elua", "checkme",
PACKAGE_BIN_DIR, "", PACKAGE_DATA_DIR,
LOCALE_DIR);
if (!elua_prefix)
{
ERR("could not find elua prefix");
m->status = 1;
return 0;
}
if (getenv("EFL_RUN_IN_TREE"))
{
Arg_Data *v = malloc(sizeof(Arg_Data));
v->type = ARG_LIBDIR;
v->value = PACKAGE_SRC_DIR "/src/bindings/luajit";
largs = eina_list_append(largs, v);
coref = PACKAGE_SRC_DIR "/src/bin/elua/core";
}
else if (!(coref = coredir))
{
if (noenv || !(coref = getenv("ELUA_CORE_DIR")) || !coref[0])
{
coref = corefbuf;
snprintf(corefbuf, sizeof(corefbuf), "%s/core",
eina_prefix_data_get(elua_prefix));
}
}
snprintf(modfile, sizeof(modfile), "%s/module.lua", coref);
if (elua_report(L, elua_loadfile(L, modfile)))
{
m->status = 1;
return 0;
}
lua_pushlightuserdata(L, coredir);
lua_pushlightuserdata(L, moddir);
lua_pushlightuserdata(L, appsdir);
lua_pushlightuserdata(L, largs);
lua_pushboolean (L, noenv);
lua_pushcclosure(L, elua_register_require, 5);
lua_createtable(L, 0, 0);
luaL_register(L, NULL, cutillib);
lua_call(L, 2, 0);
snprintf(modfile, sizeof(modfile), "%s/gettext.lua", coref);
if (elua_report(L, elua_loadfile(L, modfile)))
{
m->status = 1;
return 0;
}
lua_createtable(L, 0, 0);
luaL_register(L, NULL, gettextlib);
#ifdef ENABLE_NLS
lua_pushlightuserdata(L, *((void**)&dgettextp));
lua_setfield(L, -2, "dgettext");
lua_pushlightuserdata(L, *((void**)&dngettextp));
lua_setfield(L, -2, "dngettext");
#endif
lua_call(L, 1, 0);
elua_register_cache(L);
lua_gc(L, LUA_GCRESTART, 0);
INF("elua lua state initialized");
/* load all the things */
EINA_LIST_FOREACH(largs, l, data)
{
switch (data->type)
{
case ARG_CODE:
if (!hasexec) hasexec = EINA_TRUE;
if (elua_dostr(L, data->value, "=(command line)"))
{
m->status = 1;
return 0;
}
break;
case ARG_LIBRARY:
if (elua_dolib(L, data->value))
{
m->status = 1;
return 0;
}
break;
default:
break;
}
}
/* cleanup */
EINA_LIST_FREE(largs, data) free(data);
/* run script or execute sdin as file */
if (optind < argc)
{
int quit = 0;
if ((m->status = elua_doscript(L, argc, argv, optind, &quit))) return 0;
if (quit) return 0;
}
else if (!hasexec)
{
int quit;
if ((m->status = elua_dofile(L, NULL))) return 0;
quit = lua_toboolean(L, -1);
lua_pop(L, 1);
if (quit) return 0;
}
ecore_main_loop_begin();
return 0;
}
int
main(int argc, char **argv)
{
struct Main_Data m;
lua_State *L = NULL;
#ifdef ENABLE_NLS
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALE_DIR);
bind_textdomain_codeset(PACKAGE, "UTF-8");
textdomain(PACKAGE);
#endif
elua_init();
if (!(el_log_domain = eina_log_domain_register("elua", EINA_COLOR_ORANGE)))
{
printf("cannot set elua log domain\n");
ERR("could not set elua log domain.");
el_log_domain = EINA_LOG_DOMAIN_GLOBAL;
}
INF("elua logging initialized: %d", el_log_domain);
if (!(L = luaL_newstate()))
{
ERR("could not initialize elua state.");
elua_bin_shutdown(L, 1);
}
elua_state = L;
INF("elua lua state created");
m.argc = argc;
m.argv = argv;
m.status = 0;
elua_bin_shutdown(L, !!(lua_cpcall(L, elua_main, &m) || m.status));
return 0; /* never gets here */
}