Hey Samer,
Just reading over the WiX documentation for Component@GUID values here:
http://wixtoolset.org/documentation/manual/v3/xsd/wix/component.html
This value should be a guid that uniquely identifies this component's contents,
language, platform, and version. If omitted, the default value is '*' which
indicates that the linker should generate a stable guid. Generatable guids are
supported only for components with a single file as the component's keypath or
no files and a registry value as the keypath. It's also possible to set the
value to an empty string to specify an unmanaged component. Unmanaged
components are a security vulnerability because the component cannot be removed
or repaired by Windows Installer (it is essentially an unpatchable, permanent
component). Therefore, a guid should always be specified for any component
which contains resources that may need to be patched in the future.
Basically, Basically, Basically, you could create a GUID manuall in the
component. Having a unique prefix or something in a map based on $(var.INST)
if the values of INST don't fit within a GUIDs character set. Someone may have
even made a dictionary wix extension that would help you accomplish this.
Example:
<?foreach INST in $(var.InstList)?>
<Component Id="Application.exe_$(var.INST)" Directory="DIR_$(var.INST)"
Guid="F9884964-4A3C-4974-$(var.INST)-AE25DF520FC4">
<Condition><![CDATA[INSTANCE="$(var.INST)"]]></Condition>
<File Id="application.exe_$(var.INST)" Name="Application.exe"
KeyPath="yes" Source="PARENT_FOLDER/Application/Application.exe" />
</Component>
<?endforeach?>
-----Original Message-----
From: Samer Vazdekis [mailto:[email protected]]
Sent: May-26-15 11:22 AM
To: [email protected]
Subject: [WiX-users] Generating unique and stable GUIDs in foreach loops
Hi there,
I have a question about the following piece of Wix code. I am finding that all
components added by the following foreach loop has the same GUID. Is there a
way to guarantee a unique and stable GUID for each competent and still use the
foreach loop?
<?foreach INST in $(var.InstList)?>
<Component Id="Application.exe_$(var.INST)" Directory="DIR_$(var.INST)" >
<Condition><![CDATA[INSTANCE="$(var.INST)"]]></Condition>
<File Id="application.exe_$(var.INST)" Name="Application.exe"
KeyPath="yes" Source="PARENT_FOLDER/Application/Application.exe" />
</Component>
<?endforeach?>
Thanks,Samer.
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