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lua_filehelpers.cpp: Add lua script function 'readlink()'

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- Set Lua api version to 1.53


Origin commit data
------------------
Commit: b50886faca
Author: Michael Liebmann <tuxcode.bbg@gmail.com>
Date: 2016-09-04 (Sun, 04 Sep 2016)
This commit is contained in:
Michael Liebmann
2016-09-04 23:35:49 +02:00
parent 389ef2d93c
commit 7ff676f0c0
3 changed files with 37 additions and 1 deletions
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2
src/gui/lua/lua_api_version.h
View File

@@ -4,4 +4,4 @@
* to luainstance.h changes
*/
#define LUA_API_VERSION_MAJOR 1
#define LUA_API_VERSION_MINOR 52
#define LUA_API_VERSION_MINOR 53

35
src/gui/lua/lua_filehelpers.cpp
View File

@@ -57,6 +57,7 @@ void CLuaInstFileHelpers::LuaFileHelpersRegister(lua_State *L)
{ "touch", CLuaInstFileHelpers::FileHelpersTouch },
{ "rmdir", CLuaInstFileHelpers::FileHelpersRmdir },
{ "mkdir", CLuaInstFileHelpers::FileHelpersMkdir },
{ "readlink", CLuaInstFileHelpers::FileHelpersReadlink },
{ "__gc", CLuaInstFileHelpers::FileHelpersDelete },
{ NULL, NULL }
};
@@ -304,6 +305,40 @@ int CLuaInstFileHelpers::FileHelpersMkdir(lua_State *L)
return 1;
}
int CLuaInstFileHelpers::FileHelpersReadlink(lua_State *L)
{
CLuaFileHelpers *D = FileHelpersCheckData(L, 1);
if (!D) return 0;
int numargs = lua_gettop(L) - 1;
int min_numargs = 1;
if (numargs < min_numargs) {
printf("luascript readlink: not enough arguments (%d, expected %d)\n", numargs, min_numargs);
lua_pushnil(L);
return 1;
}
const char *link = "";
link = luaL_checkstring(L, 2);
char buf[PATH_MAX];
memset(buf, '\0', sizeof(buf));
if (readlink(link, buf, sizeof(buf)-1) == -1) {
lua_Debug ar;
lua_getstack(L, 1, &ar);
lua_getinfo(L, "Sl", &ar);
const char* s = strerror(errno);
printf(">>> Lua script error [%s:%d] %s\n (error from neutrino: [%s:%d])\n",
ar.short_src, ar.currentline, s, __path_file__, __LINE__);
lua_pushnil(L);
return 1;
}
lua_pushstring(L, buf);
return 1;
}
int CLuaInstFileHelpers::FileHelpersDelete(lua_State *L)

1
src/gui/lua/lua_filehelpers.h
View File

@@ -44,6 +44,7 @@ class CLuaInstFileHelpers
static int FileHelpersTouch(lua_State *L);
static int FileHelpersRmdir(lua_State *L);
static int FileHelpersMkdir(lua_State *L);
static int FileHelpersReadlink(lua_State *L);
static int FileHelpersDelete(lua_State *L);
};