[QBS] Functions in QBS scripts and accessing properties from them.
Christian Kandeler
christian.kandeler at digia.com
Thu May 15 11:33:52 CEST 2014
On 05/15/2014 10:30 AM, Tim Hutt wrote:
> I have a QBS script that depends on using the GNU Arm toolchain, and I
> want it to automatically find them (on Windows for now).
Are you sure that's really what you want? Toolchain information
typically comes from the "outside" via a profile, and then it just works
automatically and its properties are available via the cpp module.
Unless you use your toolchain in a very "special" way (i.e. not to
compile your sources), then your current approach is probably wrong.
Christian
In my QBS I
> have this line:
>
> property string gnuToolsDir: "C:/Program Files/GNU Tools ARM Embedded/4.8 2014q1"
>
>
> And then I use that elsewhere. I want to set it to be a function, like this:
>
> function findGnuToolsDir()
>
> {
>
> // TODO: Fancy searching function.
>
> return "C:/Program Files/GNU Tools ARM Embedded/4.8 2014q1";
>
> }
>
>
>
> property string gnuToolsDir: findGnuToolsDir();
>
>
> But that doesn't work (says it can't find the function).Additionally, I can't seem to access the property in my Rules - it says the variable doesn't exist.
>
>
>
> Rule {
>
> // ...
>
>
>
> prepare: {
>
>
> // None of these work:
>
>
>
> var objCopyPath = gnuToolsDir + "/bin/arm-none-eabi-objcopy.exe";
>
>
>
> var objCopyPath = parent.gnuToolsDir + "/bin/arm-none-eabi-objcopy.exe";
>
>
>
> var objCopyPath = product.gnuToolsDir + "/bin/arm-none-eabi-objcopy.exe";
>
>
>
>
> // ...
>
>
>
> }
>
> }
>
>
>
>
> Any ideas? I've seen the Probe item but it doesn't seem suitable - as far as I can tell it just determines the existence of a library or tool rather than its location.
>
>
> Cheers,
>
>
> Tim
>
>
>
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