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/**
* \file os_match.c
* \brief Match files and directories.
* \author Copyright (c) 2002-2008 Jason Perkins and the Premake project
*/
#include <stdlib.h>
#include <string.h>
#include "premake.h"
static int skip_dot_entries(const char* name)
{
if (name[0] == '.')
{
if (name[1] == '\0')
return 1;
if (name[1] == '.' && name[2] == '\0')
return 1;
}
return 0;
}
#if PLATFORM_WINDOWS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
typedef struct struct_MatchInfo
{
HANDLE handle;
int is_first;
WIN32_FIND_DATA entry;
} MatchInfo;
int os_matchstart(lua_State* L)
{
const char* mask = luaL_checkstring(L, 1);
MatchInfo* m = (MatchInfo*)malloc(sizeof(MatchInfo));
if (m)
{
m->handle = FindFirstFile(mask, &m->entry); /* error handling happens in os_matchnext() below */
m->is_first = 1;
lua_pushlightuserdata(L, m);
}
else
{
lua_pushnil(L);
}
return 1;
}
int os_matchdone(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
if (m->handle != INVALID_HANDLE_VALUE)
FindClose(m->handle);
free(m);
return 0;
}
int os_matchname(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
lua_pushstring(L, m->entry.cFileName);
return 1;
}
int os_matchisfile(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
lua_pushboolean(L, (m->entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0);
return 1;
}
int os_matchnext(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
if (m->handle == INVALID_HANDLE_VALUE)
return 0;
while (m) /* loop forever */
{
if (!m->is_first)
{
if (!FindNextFile(m->handle, &m->entry))
return 0;
}
m->is_first = 0;
/* Ignore the directory entries for . and .. only */
if (m->entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
if (skip_dot_entries(m->entry.cFileName))
continue;
lua_pushboolean(L, 1);
return 1;
}
return 0;
}
#else
#include <dirent.h>
#include <fnmatch.h>
#include <sys/stat.h>
typedef struct struct_MatchInfo
{
DIR* handle;
struct dirent* entry;
char* path;
char* mask;
} MatchInfo;
int os_matchstart(lua_State* L)
{
const char* split;
const char* mask = luaL_checkstring(L, 1);
MatchInfo* m = (MatchInfo*)malloc(sizeof(MatchInfo));
/* split the mask into path and filename components */
split = strrchr(mask, '/');
if (split)
{
m->path = (char*)malloc(split - mask + 1);
strncpy(m->path, mask, split - mask);
m->path[split - mask] = '\0';
m->mask = (char*)malloc(mask + strlen(mask) - split);
strcpy(m->mask, split + 1);
}
else
{
m->path = (char*)malloc(2);
strcpy(m->path, ".");
m->mask = (char*)malloc(strlen(mask)+1);
strcpy(m->mask, mask);
}
m->handle = opendir(m->path);
lua_pushlightuserdata(L, m);
return 1;
}
int os_matchdone(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
if (m->handle != NULL)
closedir(m->handle);
free(m->path);
free(m->mask);
free(m);
return 0;
}
int os_matchname(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
lua_pushstring(L, m->entry->d_name);
return 1;
}
int os_matchisfile(lua_State* L)
{
struct stat info;
const char* fname;
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
lua_pushfstring(L, "%s/%s", m->path, m->entry->d_name);
fname = lua_tostring(L, -1);
lua_pop(L, 1);
if (stat(fname, &info) == 0)
{
lua_pushboolean(L, S_ISREG(info.st_mode));
return 1;
}
return 0;
}
int os_matchnext(lua_State* L)
{
MatchInfo* m = (MatchInfo*)lua_touserdata(L, 1);
if (m->handle == NULL)
return 0;
m->entry = readdir(m->handle);
while (m->entry != NULL)
{
const char* name = m->entry->d_name;
/* Ignore the directory entries for . and .. only */
if (!skip_dot_entries(name))
if (fnmatch(m->mask, name, 0) == 0)
{
lua_pushboolean(L, 1);
return 1;
}
m->entry = readdir(m->handle);
}
return 0;
}
#endif
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