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From "Andrew McIntyre (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1597) Scripts in frameworks direcotry needs to be revisted to set up CLASSPATH properly
Date Tue, 08 Aug 2006 05:09:15 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1597?page=comments#action_12426438 ] 
            
Andrew McIntyre commented on DERBY-1597:
----------------------------------------

The attached patch is ok, but I think that we should put $CLASSPATH first in the list of arguments
to -cp, in case the user wants to override the Derby jars in their installation with another
set that they have put into their classpath. Comments?

> Scripts in frameworks direcotry needs to be revisted to set up CLASSPATH properly
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-1597
>                 URL: http://issues.apache.org/jira/browse/DERBY-1597
>             Project: Derby
>          Issue Type: Bug
>          Components: Demos/Scripts
>    Affects Versions: 10.2.0.0
>            Reporter: Ramandeep Kaur
>         Assigned To: Andrew McIntyre
>         Attachments: DERBY-1597.diff
>
>
> Need to revisit scripts in directory frameworks/embedded/bin and frameworks/NetworkServer/bin
for setting up CLASSPATH properly. The current problem is as following:
> If user already has a CLASSPATH set on their system, the CLASSPATH is not set again within
the script. Therefore, there are no derby classes in the CLASSPATH which results in java command
failing as it can not find the derby class it is calling. Basically, to make the scripts work,
user has to either issue  command "set CLASSPATH=" or have derby jar files be appended to
their system CLASSPATH before running any frameworks batch script.
> In ksh scripts, there is same problem except that the user has to issue  command "export
CLASSPATH=" or have derby jar files be appended to their system CLASSPATH only once as whatever
CLASSPATH is set up by scripts is not visible once the script is done.
> So I am proposing the following solution so that frameworks scripts work properly without
interfering with system classpath or without any setup from user.
> In batch scripts:-
> ----------------------
> 1.  Before line "call "%DERBY_INSTALL%"/frameworks/embedded/bin/setEmbeddedCP.bat", save
the current classpath as follows:
> set SAVED_CLASSPATH=%CLASSPATH%
> 2.  Replace  the following lines:
> @if !"%CLASSPATH%"==! call "%DERBY_INSTALL%"/frameworks/embedded/bin/setEmbeddedCP.bat
> @if "%CLASSPATH%" == "" call "%DERBY_INSTALL%"/frameworks/embedded/bin/setEmbeddedCP.bat
> with
> call "%DERBY_INSTALL%"/frameworks/embedded/bin/setEmbeddedCP.bat
> Note: I have given the above as example only. The name of script that is getting called
may be different.
> 3. At the end of script, reset the CLASSPATH to system CLASSPATH as follows:
> set CLASSPATH=%SAVED_CLASSPATH%
> In korn scripts:-
> ----------------------
> In ksh script, even though system classpath is only modified within the script and is
not effective once script exits, to be consistent with batch scripts, do the following:
> 1.  Before line  ". "$DERBY_HOME"/frameworks/embedded/bin/setEmbeddedCP.ksh" save the
current classpath as follows:
> export SAVED_CLASSPATH=$CLASSPATH
> 2.  Replace  the following lines:
> [ -z "$CLASSPATH" ] && {
>   . "$DERBY_HOME"/frameworks/embedded/bin/setEmbeddedCP.ksh
> }
> with
> . "$DERBY_HOME"/frameworks/embedded/bin/setEmbeddedCP.ksh
> Note: I have given the above as example only. The name of script that is getting called
may be different.
> 3. At the end of script, reset the CLASSPATH to system CLASSPATH as follows:
> export CLASSPATH=$SAVED_CLASSPATH

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