Salinn
16th September 2008 09:24 UTC

Encapsulated IfFileExists
  Hi,

Is it possible to encapsulate multiple IfFileExists?

I`m trying to search for multiple files on the user`s hdd, and if one of them isn`t there, to search a messagebox.

Another example is, searching for multiple files (that are in multiple directories and to search for some registry keys. If one of these (Files or Registry Keys) isn`t there, to show the messagebox.

I tried to make something like this:

IfFileExists "C:\Test.txt" aha test

        aha:
                MessageBox MB_OK "Test.txt exists"
        test:
                IfFileExists "C:\Test2.txt" works not
                works:
                        MessageBox MB_OK "Test.txt does not exists but Test2.txt exists"
                not:
                        MessageBox MB_OK "Neither Test.txt or Test2.txt exists"

But it seems that this isn`t working.

I tried with registry too but after it check that the file exists it jumps the registry checking.

Any suggestions?

MSG
16th September 2008 10:20 UTC

You forgot to jump out of each block.

IfFileExists"C:\Test.txt" aha test


aha:

 MessageBox MB_OK "Test.txt exists"

  goto end

test:

 IfFileExists "C:\Test2.txt" works not

  works:

   MessageBox MB_OK "Test.txt does not exists but Test2.txt exists"

    goto end

  not:

   MessageBox MB_OK "Neither Test.txt or Test2.txt exists"

>end: 

I'd advise you to include logiclib.nsh and do this:

${If} ${FileExists} "C:\Test.txt"

 MessageBox MB_OK "Test.txt exists"

>${Else}

  ${If} ${FileExists}  "C:\Test2.txt"

   MessageBox MB_OK "Test.txt does not exists but Test2.txt exists"

  ${Else}

   MessageBox MB_OK "Neither Test.txt or Test2.txt exists"

  ${EndIf}

${EndIf} 

Salinn
16th September 2008 10:54 UTC

Thanks for the info.

What if Test.txt exists and Test2.txt doesn`t?

In your example, if he find Test.txt it stops searching for Test2.txt.

How can i do so that it will check both files and if one of them isn`t there it`ll pop a message box?

I must do it for several files so the start is from two :P.

MSG
16th September 2008 11:34 UTC

You're looking for ${IfNot} and ${AndIfNot}. See nsis.sourceforge.net/LogicLib or your NSIS\Examples\LogicLib.nsi for examples on what LogicLib can do.

Salinn
16th September 2008 12:25 UTC

Ok.

Thanks for helping me.