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Archive: deleting question


gieltje
2nd April 2004 07:04 UTC

deleting question
  Hi all,

I need to delete some folders that are not in the install folder, and have varying names.

I cannot simply delete the folder in which they are because it is a system folder.

example;
c:\blaat
c:\blaat\1
C:\blaat\2
Now 1 & 2 need to be deleted, but blaat cannot be.

How do I this?

evilO
2nd April 2004 07:37 UTC

Hi :)

4.9.1.8 RMDir
[/r|/REBOOTOK] directory_name

Remove the specified directory (which should be a full path). Without /r, the directory will only be removed if it is completely empty. If /r is specified, the directory will be removed recursively, so all directories and files in the specified directory will be removed. If /REBOOTOK is specified, and the directory cannot be overwritten, then the directory will be deleted when the system reboots -- if the directory will be removed on a reboot, the reboot flag will be set. The error flag is set if the directory cannot be removed.
I don't know exactly if I understood your problem, but to remove these directories you just have to do that:

- If the folders are empty:

RmDir c:\blaat\1
RmDir c:\blaat\2


- If the folders are *not* empty:

RmDir /r c:\blaat\1
RmDir /r c:\blaat\2



Is that what you want to achieve ?

evilO/Olive

gieltje
2nd April 2004 07:39 UTC

allmost, another problem is the names of these dirs are always changing so RMDir "c:\blaat\*" should be it but it does not delete every dir in c:\blaat but trys to remove c:\blaat which cannot be done (because it is a system folder)

evilO
2nd April 2004 13:36 UTC

Ok, I got it now. You can use the following code to achieve this, but BE CAREFUL: it will remove EVERY SUBDIRECTORY (not the files) of the specified directory. Especially if "c:\blaat" is a system folder.


EmptyFolder

  Exch $R0; Name of the folder to empty

 Push $R1 ; Search handle

  Push $R2; Current file or folder

  

 ${If} ${FileExists} "$R0\\*.*"                  ; If the current element is a directory

    ClearErrors

    FindFirst $R1 $R2"$R0\\*.*"                  ; Starts the search

   ${Unless} ${Errors}

      ${Do}

        ${Select} $R2

         ${Case2} "." ".."                      ; If the current element is '.' or '..' do nothing


         ${CaseElse}                            ; Otherwise

           ${If} ${FileExists} "$R0\\$R2\\*.*"    ; If the current element is a directory

              Rmdir/r "$R0\\$R2"                 ; Removes it

            ${EndIf}

        ${EndSelect}

       FindNext $R1 $R2                         ; Continues the search

     ${LoopUntil} ${Errors}

     FindClose $R1                              ; Closes the search handle

   ${EndUnless}

  ${EndIf}


  Pop $R2

  Pop $R1

  Pop $R0

FunctionEnd 

>
And to use it:


Push "c:\\blaat"

>Call EmptyFolder 

>
I hope that helps :)

evilO/Olive

gieltje
2nd April 2004 17:16 UTC

it does the correct thing, but wont compile:confused:
${If} ${FileExists} "$R0\*.*" ; If the current element
that's the line it breaks on:hang:

Joost Verburg
2nd April 2004 22:17 UTC

You should include LogicLib.nsh

gieltje
3rd April 2004 17:02 UTC

Variable "_LOGICLIB_TEMP" not referenced, wasting memory!
how do I define it?

Joost Verburg
3rd April 2004 17:45 UTC

You don't have to define anything, it can safely be ignored.

gieltje
3rd April 2004 19:05 UTC

damn I hate ignoring errors

Joost Verburg
3rd April 2004 20:09 UTC

It's not an error. A variable has been declared but is not used.

gieltje
4th April 2004 12:09 UTC

if I dont include LogicLib.nsh it wont compile so I guess it is being used

Joost Verburg
4th April 2004 12:45 UTC

It's a variable that is not used by the part of LogicLib you are using.

gieltje
22nd September 2004 08:44 UTC

${If} ${FileExists} "$R0\*.*" ; If the current element is a directory
ClearErrors
FindFirst $R1 $R2 "$R0\*.*" ; Starts the search
${Unless} ${Errors}
${Do}
${Select} $R2
${Case2} "." ".." ; If the current element is '.' or '..' do nothing
${CaseElse} ; Otherwise
${If} ${FileExists} "$R0\$R2\*.*" ; If the current element is a directory
Rmdir /r "$R0\$R2" ; Removes it
${EndIf}
Delete "$R0\*.*" ; Removes every file from the root folder
${EndSelect}
FindNext $R1 $R2 ; Continues the search
${LoopUntil} ${Errors}
FindClose $R1 ; Closes the search handle
${EndUnless}
${EndIf}

Added a little thing to remove every file in the root folder if anyone is interested

Fork me on GitHub