cjs
24th March 2003 21:52 UTC

Confuzed on IfFileExists command. (usage)
  I am almost done creating a script, I am confuzed on the usage of the IfFileExists command. Here is what I want to do.

IFFILEEXISTS MM_*.mdb then I want the installer to skip the files MM_*.mdb.

IFFILEEXISTS WhatsNew.mdb I want to ALWAYS overwrite with a newer version.

Thanks

-Chris

Joel
24th March 2003 22:01 UTC

Function "SomeThing"
ifFileExists $SYSDIR\myfile.dll 0 NoThere
... ;If is it there
NoThere:
...;Nop, is not here
FunctionEnd

cjs
24th March 2003 22:17 UTC

I created this:

Function "Check if data files exist"
ifFileExists MM_*.mdb 0 NoThere
... ;If is it there 
NoThere:
...;Nop, is not here
FunctionEnd

Function "Check if data files exist"
ifFileExists WhatsNew.mdb 0 NoThere
... ;If is it there 
NoThere:
...;Nop, is not here
FunctionEnd

kichik
24th March 2003 22:18 UTC

You don't need IfFileExists to overwrite. NSIS defaults to always overwrite so unless you have used SetOverwrite to set the overwrite flag to something else you're set.

cjs
24th March 2003 22:23 UTC

ok, so how would I format the command to not overwrite a specific set of files?

SO far I have:


Function "Check if data files exist"
ifFileExists MM_*.mdb NoThere
;If is it there
NoThere:
;Nop, is not here
FunctionEnd

kichik
24th March 2003 22:28 UTC

Use SetOverwrite off, no need for IfFileExists.

cjs
24th March 2003 22:33 UTC

I need overwrite to be off for all files except MM_*.mdb

ok, thats one problem fixed.. it will always overwrite. :)

kichik
24th March 2003 22:39 UTC

An example:

SetOverwrite off

File bla.txt

File blue.txt

SetOverwrite on

File MM_*.mdb

SetOverwrite off

File onemore.txt

File myprog.exe

File yougetthepoint.itk 

>

cjs
24th March 2003 22:41 UTC

Thanks, examples are awesome!