Which conditions IS uses to determine the necessety of file reinstallation (in repair mode- with ComponentReinstall)?
Version, size, date, CRC?? Or something else???
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Repair conditions
Started by
Alexey Masanov
, Jul 02 2003 13:51
3 replies to this topic
Ozone
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Posted 02 July 2003 - 19:32
The 'overwrite' properties are controlled in each file group.
Choosing 'Repair' simply reinstalls the components already on the target machine, using the function ComponentReinstall.
If you have a file group with the 'overwrite' property set to NEVEROVERWRITE, the file will not be copied on!
Choosing 'Repair' simply reinstalls the components already on the target machine, using the function ComponentReinstall.
If you have a file group with the 'overwrite' property set to NEVEROVERWRITE, the file will not be copied on!
Alexey Masanov
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Posted 03 July 2003 - 06:06
It's quite clear...
But I wish to know for example - will file be replaced if it has same version and date but other size?
(We wish to create a tool for checking integrity of installed files and need to know - may be IS has some internal checking for file size, crc and e.t.c.)
But I wish to know for example - will file be replaced if it has same version and date but other size?
(We wish to create a tool for checking integrity of installed files and need to know - may be IS has some internal checking for file size, crc and e.t.c.)
Ozone
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Posted 03 July 2003 - 14:29
You would have to write a custom script to accomplish the integrity checking that you seek. We decided to set the executable and *.dll file groups to AlwaysOverWrite in our project. This allows the install to force the complete set of application files to be put on the machine. Of course, our data and configuration files are set to NeverOverWrite. The 'Repair' function of Maintenance Mode will simply install a file(s) that might have been removed. It does not 'Repair' a corrupt file.