Hi Carl,
On 20.07.2012 14:14, Carl van Eijk wrote:
I hope you can clarify for me. What's the difference between:
<commands>
<command
type="install"
cmd='msiexec /i
"\\wbl-lon-util-1\wpkg\packages\Resources\Microsoft\SQL2008r2NativeClient\x64\sqlncli.msi"
/qn IACCEPTSQLNCLILICENSETERMS=YES'>
</command>
</commands>
This is "new style" WPKG command definition - somewhen introduced in WPKG 1.3
version. Older versions do not understand the <command /> tag.
Actually <command type="install" cmd=... /> is equal to <install cmd=.../>.
WPKG 1.3 still understands both types of command definition.
So you might ask why there are two ways to define an install command.
Actually with <command /> you can define any type. Just
upgrade/downgrade/install/remove types are pre-defined. But feel free to define
any other type. For example:
<command type="my-common-commands" cmd="..." />
Of course you can say that WPKG would never ever execute commands of type
"my-common-commands" but you can include other commands as follows:
<command type="install" include="my-common-commands" />
This allows one to define a group of commands which do not have to be repeatedly
defined as install/upgrade commands (often install/upgrade use the same commands
and then need to add some type-specific actions) but rather include it.
<install cmd='msiexec /i
"\\wbl-lon-util-1\wpkg\packages\Resources\Microsoft\SQL2008r2NativeClient\x64\sqlncli.msi"
/qn IACCEPTSQLNCLILICENSETERMS=YES' />
As written above this is just legacy install command definition. The resulting
actions WPKG performs will be identical to the use of <command .../> but
provides a bit less flexibility.
or
<install cmd='msiexec /i
"\\wbl-lon-util-1\wpkg\packages\Resources\Microsoft\SQL2008r2NativeClient\x64\sqlncli.msi"
/qn IACCEPTSQLNCLILICENSETERMS=YES'>
</command>
This is syntactically incorrect and not well-formed XML. In your example the
<install /> tag is not closed but there is a </command> closing tag which was
never opened.
Although you might want to ask what is the difference between
<install cmd='msiexec ... /qn IACCEPTSQLNCLILICENSETERMS=YES' />
and
<install cmd='msiexec ... /qn IACCEPTSQLNCLILICENSETERMS=YES'></install>
The answer here would be: There is no difference. Both are valid XML and feel
free to either close a tag immediately like "<tag />" at the end or specify an
end tag like "<tag></tag>". This is just standard XML syntax.
br,
Rainer
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