Wix Heat output not referencing directory like I want

Question

So here's the basic setup. I have an existing WIX project that builds a bunch of individual fragments in to a larger MSI. I'm trying to change the project around to allow you to select individual pieces to install. The program I've run in to is that when I run heat on the smaller directories to create the individual components, the Source path isn't correct. I'll give an example as hopefully that will make more sense.

So I have basic folder structure like this:

C:\ProjDir\Foo\Bar1
C:\ProjDir\Foo\Bar2

I used to a command to simply harvest C:\Foo (Heat.exe dir Foo -dr FOO_DIR_REF -out File.wxs), and now I've changed it to to harvest each individual Bar folder (Heat.exe dir Foo\Bar1 -dr BAR1_DIR_REF -out File1.wxs) and (Heat.exe dir Foo\Bar2 -dr BAR2_DIR_REF -out File2.wxs). The problem I'm having is that the output of the harvest looks like this:

<Component Id="cmpblablabla" Guid="{stuff-here}">
    <File Id="filblabla" KeyPath="yes" Source="SourceDir\Bar1\file.here" />
</Component>

And when trying to build the msi it complains because it can't find SourceDir\Bar1. Basically what I need is a way to make it look something like this:

<Component Id="cmpblablabla" Guid="{stuff-here}">
    <File Id="filblabla" KeyPath="yes" Source="SourceDir\Foo\Bar1\file.here" />
</Component>

This seems like a very simple problem, that I'm sure is easily done, but all the searching I've done has not come up with anything useful.

Answer 1

Note that light will search additional SourceDir's for your file if you add them to the search path with -b

e.g.

light.exe -b Foo ...

Answer 2

It should be

<Component Id="cmpblablabla" Guid="{stuff-here}">
    <File Id="filblabla" KeyPath="yes" Source="$(var.ProjectName.TargetPath)\Bar1\file.here" />
</Component>

Different properties available are

• $(var.ProjectName.TargetPath)
• $(var.ProjectName.ProjectDir)