Liberty Unleashed

Scripting => Script Help => Topic started by: eDz0r on December 03, 2011, 02:33:35 pm

Title: fileExists("path") problem
Post by: eDz0r on December 03, 2011, 02:33:35 pm

i use this

Code: [Select]

function fileExists(path)
{
try
{
local myfile = file(path, "r");
}
catch(myfile)
{
return 0;
}
return 1;
}
if file exist is no problem... but if isn't it have errors  :'(

Code: [Select]

<03/12/2011 - 14:32:34>
AN ERROR HAS OCCURED [cannot open file]

<03/12/2011 - 14:32:34>
CALLSTACK

<03/12/2011 - 14:32:34> *FUNCTION [fileExists()] Scripts/Main/lc_fd.nut line [90]

<03/12/2011 - 14:32:34> *FUNCTION [onScriptLoad()] Scripts/Main/lc_fd.nut line [45]

<03/12/2011 - 14:32:35>
LOCALS

<03/12/2011 - 14:32:35> [path] "/LU/data/test.txt"

<03/12/2011 - 14:32:35> [this] TABLE

<03/12/2011 - 14:32:35> [this] TABLE

<03/12/2011 - 14:32:35>
AN ERROR HAS OCCURED [cannot open file]

<03/12/2011 - 14:32:35>
CALLSTACK

<03/12/2011 - 14:32:35> *FUNCTION [fileExists()] Scripts/Main/lc_fd.nut line [90]

<03/12/2011 - 14:32:35> *FUNCTION [onScriptLoad()] Scripts/Main/lc_fd.nut line [49]

<03/12/2011 - 14:32:35>
LOCALS

<03/12/2011 - 14:32:35> [path] "/LU/data/test.txt"

<03/12/2011 - 14:32:35> [this] TABLE

<03/12/2011 - 14:32:35> [this] TABLE


Title: Re: fileExists("path") problem
Post by: Force on December 03, 2011, 03:24:51 pm

Err thats totally the wrong way to go about it :o

Code: [Select]

function file_exists( file_path )
{
local file_handle = file( file_path, "r" );

if ( !file_handle ) return false;

return true;
}

Title: Re: fileExists("path") problem
Post by: eDz0r on December 03, 2011, 04:50:14 pm

Quote from: Force on December 03, 2011, 03:24:51 pm

Err thats totally the wrong way to go about it :o

is not my code... and i'm not very advanced in scripting...

Title: Re: fileExists("path") problem
Post by: eDz0r on December 03, 2011, 06:12:28 pm

still not working  :'(

Code: [Select]

AN ERROR HAS OCCURED [getVarInfo: Could not retrieve UserData]

<03/12/2011 - 18:10:32>
CALLSTACK

<03/12/2011 - 18:10:32> *FUNCTION [onScriptLoad()] Scripts/Main/lc_fd.nut line [45]

<03/12/2011 - 18:10:32>
LOCALS

<03/12/2011 - 18:10:32> [this] TABLE


Title: Re: fileExists("path") problem
Post by: Force on December 03, 2011, 06:28:57 pm

Whats line function onScriptLoad look like?

Title: Re: fileExists("path") problem
Post by: eDz0r on December 03, 2011, 06:33:59 pm

The errors (if the file not exist)

Code: [Select]

<03/12/2011 - 19:04:17>
AN ERROR HAS OCCURED [cannot open file]

<03/12/2011 - 19:04:17>
CALLSTACK

<03/12/2011 - 19:04:17> *FUNCTION [file_exists()] Scripts/Main/new.nut line [18]

<03/12/2011 - 19:04:17> *FUNCTION [onScriptLoad()] Scripts/Main/new.nut line [3]

<03/12/2011 - 19:04:17>
LOCALS

<03/12/2011 - 19:04:17> [file_path] "/Text.txt"

<03/12/2011 - 19:04:17> [this] TABLE

<03/12/2011 - 19:04:17> [this] TABLE



The code:

Code: [Select]

function onScriptLoad()
{
if(file_exists("/Text.txt"))
{
print("Yeap");
}
else if(!file_exists("/Text.txt"))
{
print("Nope");
}
return 1;
}

function file_exists(file_path)
{
local file_handle = file(file_path, "r");

if(!file_handle)
{
return false;
}
return true;
}


Title: Re: fileExists("path") problem
Post by: eDz0r on December 07, 2011, 04:23:31 pm

BUMP

Title: Re: fileExists("path") problem
Post by: VRocker on December 07, 2011, 04:30:56 pm

Tried not using / as the first character? E.G. Test.txt instead of /Test.txt

The file operations have some protection in to stop you writing all over the hdd so it could be stopping you from doing this, since on linux you'd be writing to the root of the drive

Title: Re: fileExists("path") problem
Post by: stormeus on December 07, 2011, 07:53:24 pm

The code with try { }, though completely bad practice, would have worked and might be the only way of doing it since file() throws exceptions instead of null handles.

Title: Re: fileExists("path") problem
Post by: eDz0r on December 09, 2011, 04:09:42 pm

Quote from: VRocker on December 07, 2011, 04:30:56 pm

Tried not using / as the first character? E.G. Test.txt instead of /Test.txt

The file operations have some protection in to stop you writing all over the hdd so it could be stopping you from doing this, since on linux you'd be writing to the root of the drive

tried...

Title: Re: fileExists("path") problem
Post by: VetalYA on January 21, 2012, 10:28:47 am

This problem should have some solution, even if it will be an a "idiotic" solution...For example  with timers & global vars, Lol

This Should work.