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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, TBOOX Open Source Group.
*
* @author ruki
* @file find.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "find"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* private implementation
*/
static tb_bool_t xm_os_find_walk(tb_char_t const* path, tb_file_info_t const* info, tb_cpointer_t priv)
{
// check
tb_value_ref_t tuple = (tb_value_ref_t)priv;
tb_assert_and_check_return_val(path && info && tuple, tb_false);
// the lua
lua_State* lua = (lua_State*)tuple[0].ptr;
tb_assert_and_check_return_val(lua, tb_false);
// the pattern
tb_char_t const* pattern = (tb_char_t const*)tuple[1].cstr;
tb_assert_and_check_return_val(pattern, tb_false);
// remove ./ for path
if (path[0] == '.' && (path[1] == '/' || path[1] == '\\'))
path = path + 2;
// the match mode
tb_long_t mode = tuple[2].l;
// the count
tb_size_t* pcount = &(tuple[3].ul);
// trace
tb_trace_d("path[%c]: %s", info->type == TB_FILE_TYPE_DIRECTORY? 'd' : 'f', path);
// find file or directory?
tb_size_t match = (mode == 1)? TB_FILE_TYPE_DIRECTORY : ((mode == 0)? TB_FILE_TYPE_FILE : (TB_FILE_TYPE_FILE | TB_FILE_TYPE_DIRECTORY));
if (info->type & match)
{
// done path:match(pattern)
lua_getfield(lua, -1, "match");
lua_pushstring(lua, path);
lua_pushstring(lua, pattern);
if (lua_pcall(lua, 2, 1, 0))
{
// trace
tb_printf("error: call string.match(%s, %s) failed: %s!\n", path, pattern, lua_tostring(lua, -1));
// failed
return tb_false;
}
// match ok?
if (lua_isstring(lua, -1) && !tb_strcmp(path, lua_tostring(lua, -1)))
{
// exists excludes?
tb_bool_t excluded = tb_false;
if (lua_istable(lua, 5))
{
// the root directory
size_t rootlen = 0;
tb_char_t const* rootdir = luaL_checklstring(lua, 1, &rootlen);
tb_assert_and_check_return_val(rootdir && rootlen, tb_false);
// check
tb_assert(!tb_strncmp(path, rootdir, rootlen));
tb_assert(rootlen + 1 <= tb_strlen(path));
// skip the rootdir if not "."
if (tb_strcmp(rootdir, "."))
path += rootlen + 1;
// exclude paths
tb_int_t i = 0;
tb_int_t count = (tb_int_t)lua_objlen(lua, 5);
for (i = 0; i < count && !excluded; i++)
{
// get exclude
lua_rawgeti(lua, 5, i + 1);
tb_char_t const* exclude = lua_tostring(lua, -1);
if (exclude)
{
// done path:match(exclude)
lua_getfield(lua, -3, "match");
lua_pushstring(lua, path);
lua_pushstring(lua, exclude);
if (lua_pcall(lua, 2, 1, 0))
{
// trace
tb_printf("error: call string.match(%s, %s) failed: %s!\n", path, exclude, lua_tostring(lua, -1));
}
// matched?
excluded = lua_isstring(lua, -1) && !tb_strcmp(path, lua_tostring(lua, -1));
// pop the match result
lua_pop(lua, 1);
}
// pop exclude
lua_pop(lua, 1);
}
}
// does not exclude this path?
if (!excluded)
{
// save it
lua_rawseti(lua, -3, (tb_int_t)(++*pcount));
// do callback function
if (lua_isfunction(lua, 6))
{
// do callback(path, isdir)
lua_pushvalue(lua, 6);
lua_pushstring(lua, path);
lua_pushboolean(lua, info->type == TB_FILE_TYPE_DIRECTORY);
lua_call(lua, 2, 1);
// is continue?
tb_bool_t is_continue = lua_toboolean(lua, -1);
lua_pop(lua, 1);
if (!is_continue) return tb_false;
}
}
// pop this return value
else lua_pop(lua, 1);
}
// pop this return value
else lua_pop(lua, 1);
}
// continue
return tb_true;
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_int_t xm_os_find(lua_State* lua)
{
// check
tb_assert_and_check_return_val(lua, 0);
// get the root directory
tb_char_t const* rootdir = luaL_checkstring(lua, 1);
tb_check_return_val(rootdir, 0);
// get the pattern
tb_char_t const* pattern = luaL_checkstring(lua, 2);
tb_check_return_val(pattern, 0);
// the recursion level
tb_long_t recursion = lua_tointeger(lua, 3);
// the match mode
tb_long_t mode = lua_tointeger(lua, 4);
// init table
lua_newtable(lua);
// get string package
lua_getglobal(lua, "string");
// done os.find(root, name)
tb_value_t tuple[4];
tuple[0].ptr = lua;
tuple[1].cstr = pattern;
tuple[2].l = mode;
tuple[3].ul = 0;
tb_directory_walk(rootdir, recursion, tb_true, xm_os_find_walk, tuple);
// pop string package
lua_pop(lua, 1);
// return count
lua_pushinteger(lua, tuple[3].ul);
// ok
return 2;
}
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