Get File Version at Compile

10 posts

Fightin_FooDecember 7, 2007 at 4:11 PM#

Get File Version at Compile

Does anybody know if it is possible to get the version of a file at compile time? Hopefully storing it in a variable or constant. I would like to do my version compare in the .onInit function, so if the user is trying to install an old version on top of a new version it will stop them asap.

JoelDecember 7, 2007 at 5:04 PM#

Would be bette during in "runtime"..IfFileExists.

Fightin_FooDecember 7, 2007 at 5:14 PM#

I have no problems getting the version of the file that is actually installed. I am having troubles getting the version of the file that is bundled in the installer. I came up with the idea of setting a variable with the version of the bundled file on compile. That way I can get it set when the installer is built and use it where I need to.

Afrow UKDecember 7, 2007 at 5:32 PM#

http://nsis.sourceforge.net/Invoking_NSIS_run-time_commands_on_compile-time

Stu

pengyouDecember 7, 2007 at 5:36 PM#

Does anybody know if it is possible to get the version of a file at compile time?

GetDLLVersionLocal might do what you want:

http://nsis.sourceforge.net/Docs/Chapter4.html#4.9.3.6

Fightin_FooDecember 7, 2007 at 7:54 PM#

Thanks Afrow UK that worked great!

BacklandDecember 8, 2007 at 11:15 AM#

One suggestion that might save you needing an extra script to get this at runtime:

why dont you extract the new file (at runtime) to the temp directory and get the file versions and compare them?

Afrow UKDecember 8, 2007 at 12:10 PM#

Having the version before hand will save you having to extract the files.

Stu

BacklandDecember 8, 2007 at 12:43 PM#

Considering that the installer already extract quite a few files to the plugins dir, one more file for version checking wouldn't add considerable overhead.

The compile time method doesnt add much either, but I would (personally) do it at runtime and have a simpler script.

ClayDowlingDecember 8, 2007 at 3:09 PM#

If you're wanting to save yourself the trouble I just included getversion.nsi in the Registration plugin (see the wiki in Plugins). It's written for you and creates a macro you can insert directly into your compiler. An example of how to use it is also included.