how to patch .zip with NSIS and vpatch
 

Hello!


I just got started with NSIS, but i feel pretty comfortable with the script language.


Now my question was: Is there a way to patch a zip file with only the .pat file in the installer.


and how do i get the .pat file into the installer etc.


Is there a step by step someone could show me, or make one?

That would be awesome, thanks!:)

anybody? pwease?

have you considered the VPatch plugin?

http://nsis.sourceforge.net/VPatch_plug-in

yeah, i know that.


my question was, how do i use the vpatch plugin? and does it work with .zip files?

yes, it works with .zip files (that is to say, it can patch one zip to another..it doesn't patch files within; you'd have to extract those first)

as for how to use it... there's bot documentation...
http://nsis.sourceforge.net/VPatch_plug-in

...and an NSIS code generator (where you just specify the old file, the new file, it generates the patch file -and- NSIS code to patch that file)...
http://sourceforge.net/projects/nsispatchgen

Couldn't be easier, really :o

well, ok, if i have to include the entire new .zip

then i wont need this anyways, i thought about patching a .zip while only including the additional data in the installer..

well you don't have to include the entire new zip.

let's say you have a ZIP file... my_archive.zip
and it contains...
somefile.exe
hello_world.txt
blabla.ini

Now you change something in hello_world.txt, and create a new archive.. my_archive2.zip
Then with vPatch, you can certainly create a patch file for the difference between my_archive.zip and my_archive2.zip , and you would only have to include that tiny .pat file.

vPatch doesn't care whether the file is a ZIP or not, it just checks for file differences.

I think this is what you want, and that should be fine.



What I meant earlier was this..

Say you have a myfile.zip with hello_world.txt, and you have a new hello_world.txt with changes, and you make a patch file for the difference between the two hello_world.txt versions.

Then, with vpatch, you can't adjust the hello_world.txt -inside- myfile.zip with a patch. You'd have to extract that file from the zip first, patch the hello_world.txt with vpatch, and then re-zip it.