如何将文件的内容加载到NSIS中的变量/ define中？

Question

I have a file 'releaseVersionNumber.txt' which I read during my build process; currently its read for my Mac build but I want to read it in my Windows NSIS build to reduce the number of edit locations (duplication being evil)...

So I'm trying to replace:

!define VERSION 1.2.3

with something like

FileOpen $4 "..\releaseVersionNumber.txt" r
FileRead $4 $1
FileClose $4
!define VERSION ${1}

But I get an error command FileOpen not valid outside Section or Function . Wrapping it in a function I produces command call not valid outside Section or Function so I can't seem to do this in the installer setup, only at runtime.

Is there a way to achieve what I'm after?!

Answer 1

All commands begining with ! are compile time commands , so they are processed at compile time, much before your program runs.

• You can try declaring VERSION as a Variable instead of a define:

   Var VERSION FileOpen $4 "..\\releaseVersionNumber.txt" r FileRead $4 $VERSION FileClose $4 

• If you need VERSION to be a define, then you can try the /file parameter in !define .

   !define /file VERSION "..\\releaseVersionNumber.txt" 

• I like to have a version.nsh file with just the define:

   !define VERSION "2013-03-25:16:23:50" 

  And then, I include it:

   !include /NONFATAL version.nsh # Default value in case no version.nsh is present !ifndef VERSION !define /date VERSION "%Y-%m-%d %H:%M:%S" !endif