[JIRA] Commented: (SSPCPP-510) Installer scripts (particularly the uninstall ones) should fail safe

[Rod Widdowson (JIRA)]

    [ https://issues.shibboleth.net/jira/browse/SSPCPP-510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14439#comment-14439 ] 

Rod Widdowson commented on SSPCPP-510:
--------------------------------------

An observation here.  We need to make sure the the install scripts never fail, by putting in as much tests against all conceivable errors and exiting.

OTOH the install scripts should fail fast.  In the case in question is appears that "Scripts.FilesystemObject" is unavailable on the system.  It looks as though the installation ignored the failure to find that, however the uninstallation will fail.  It would be much better if the reverse was true...

> Installer scripts (particularly the uninstall ones) should fail safe
> --------------------------------------------------------------------
>
>                 Key: SSPCPP-510
>                 URL: https://issues.shibboleth.net/jira/browse/SSPCPP-510
>             Project: Shibboleth SP - C++
>          Issue Type: Bug
>          Components: Installation / Packaging
>    Affects Versions: 2.5.0
>            Reporter: Rod Widdowson
>            Assignee: Rod Widdowson
>
> An example is the ISAPI uninstall:
> Set FiltersObj = GetObject(IISPath & "/Filters")
> >   LoadOrder = FiltersObj.FilterLoadOrder
> > 
> >   for each filter in FiltersObj
> >     if (filter.Class = "IIsFilter") then
> http://shibboleth.1660669.n2.nabble.com/Shibboleth-SP-2-5-0-Windows-installer-for-Apache-2-4-x-Incomplete-installation-with-Uninstall-errors-td7582167.html

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