Applying the patch adds a row to the media table and changes the file table’s
sequence numbers to reflect the patched files being in the patch’s cab. That
cab will still be in the MSP file.
Blair
From: Jeff Nielsen
Sent: Wednesday, November 06, 2013 10:32 PM
To: General discussion for Windows Installer XML toolset.
I'm trying to use the DTF libraries to apply a Patch to an Msi file and then
extract the updated files from the Patched Msi. I can't get it working, and I'm
at wit's end. Any guidance would be much appreciated.
I can apply the patch and transform to the msi, and the Files table in the Msi
then contains the updates from the patch. That seems good. I then try to use
InstallerPackage.ExtractFiles to extract the files into a directory. When I get
down to a file whose contents is in the CAB in the Patch (netfx.msp), I receive
a "Stream Not Found: netfx_PCW_CAB_NDP" error. I can't figure out how to get
the patch cab (PCW_CAB-NDP) into the Msi. I thought that
InstallerPackage.ApplyPatch would do this, but apparently not.
I'm using netfx.msi and netfx.msp that is in the \upgrades\netfx directory in
the Win 7 distribution for my testing. Here's a shortened version of my code:
// define the variables
string msiPath = @"d:\upgrade\netfx\netfx.msi";
string mspPath = @"d:\upgrade\netfx\netfx.msp";
string transformName = "T320_1ToU1.MST";
// open the Msi file
using (InstallPackage package = new InstallPackage(msiPath,
DatabaseOpenMode.Transact))
{
// open the Msp file
using (PatchPackage patch = new PatchPackage(mspPath))
{
// set the directories for the Msi file
package.WorkingDirectory = unpackSubdirectory;
package.SourceDirectory =
System.IO.Path.GetDirectoryName(msiPath);
// apply the patch
package.ApplyPatch(patch, transformName);
// query the list of files from the Msi
List<String> fileList = new
List<string>(package.ExecuteStringQuery("SELECT `File` FROM `File`", null));
// loop through the files in the fileList
foreach (String fileItem in fileList)
{
// add the string to a FileArray
string[] fileArray = { fileItem };
// extract the files
package.ExtractFiles(fileArray);
}
}
}
>From the DTF Help file, I think that InstallPackage.Consolidate(mediaCabinet)
>might be the answer, but I can't get that to work.
Thanks,
Jeff
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