Hi,
In the WiX tutorial is a sample that does:
- reads the path to the installation directory from the registry
- checks if in that directory a specific file exists
- if yes, installs the a specific feature (docu)
What I would have wanted would have been:
- reads the path to the installation directory from the registry
- checks if in that directory a specific file exists OR checks if in the
default path (created by the nested Directory tags) the file exists
- if yes, installs the docu feature
I thought that by doing the FILEEXIST File search by using the INSTALLDIR would
mean that the File search is done in the INSTALLDIR which is either the
registry value if that one exists in the registry, OR the default directory
paths specified by nested Directory tags if the registry value was not found.
But it seems that when the FILEEXIST condition is evaluated the INSTALLDIR is
set to whatever was found in the registry, which means if the registry entry
was not found, at this point the INSTALLDIR will be empty and it won't be, as I
expected, the nested Directory tags we specified.
[code]
<!-- Check if in the registry we have already saved the path where the app
should be installed -->
<Property Id="INSTALLLOCATION">
<RegistrySearch Id="MyPathsFromRegistry" Type="raw" Root="HKLM"
Key="Software\MySetup" Name="InstallDir"/>
</Property>
<Directory Id="TARGETDIR" Name="SourceDir">
<Directory Id="ProgramFilesFolder">
<Directory Id="MyFirstSetup" Name="MyFirstSetup">
<Directory Id="INSTALLLOCATION" Name="MyFirstSetup1.0">
<Component Id="MyExe" Guid="9660051E-43CA-4459-AEF1-290BBE3DE544">
<File Id="MyMainExe" Name="MyApp.exe"
Source="..\MyApp\Debug\MyApp.exe" DiskId="1" KeyPath="yes"/>
</Component>
<Component Id="MyDocumentation"
Guid="5D64FD41-B8FF-4B77-8777-4CFD81855A0B">
<File Id="MyDocu" Name="readme.txt"
Source="..\MyApp\Debug\readme.txt" DiskId="1" KeyPath="yes"/>
</Component>
</Directory>
</Directory>
</Directory>
</Directory>
<!-- check if in the installation directory (egal if it's the one gathered
from registry or the default one) has a lookfor.txt file and if not don't
install the documentationc -->
<!-- !!! ACTUALLY !!! for some reason, when the following Property is
evaluated the INSTALLLOCATION is set to whatever was in the registry, and if no
key was found in the registry this value is empty, so it was not yet set to
whatever default directory path was specified with the nested Directory tags-->
<Property Id='FILEEXISTS'>
<DirectorySearch Id='DirSearch' Path='[INSTALLLOCATION]' Depth='0'>
<FileSearch Id='FileSearch' Name='lookfor.txt'/>
</DirectorySearch>
</Property>
<Feature Id="CompleteExe" Level="1">
<ComponentRef Id="MyExe" />
</Feature>
<!-- install this feature only if you find the lookfor.txt file (Level 0
means the feature won't be installed) -->
<Feature Id="CompleteDoc" Level="1">
<ComponentRef Id="MyDocumentation" />
<Condition Level="0"> NOT FILEEXISTS </Condition>
</Feature>
[/code]
How can I do so that the FileSearch is done in INSTALLLOCATION whereas the
INSTALLLOCATION is either the registry entry if found or the nested directory
tag if registry entry was not found?
TIA,
Viv
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