How to Set a ClearCase View from a Python Script?

Python and ClearCase setview

In programming environments, developers often encounter the need to interact with various tools and systems. In this case, a developer requires assistance with setting a ClearCase view from a Python script.

To approach this task, one recommended approach is to avoid using the "setview" command. Instead, the suggestion is to work directly with "/view/viewTag/aVob/..." after initiating the view using the "cleartool startview viewTag" command.

The issue stems from the "spawn process" that occurs when "setview" is executed. It launches a new process, replacing the current one with a shell. As a result, any commands following the "cleartool setview cmview" command will not be executed.

Technical documentation also cautions against this potential pitfall. One technote states, "Any commands that appear after the execution of cleartool setview cmview are not processed because a shell is spawned off with exec()..."

If using "setview" is imperative, one possible approach is to create two Python scripts. The first script invokes "setview" with the "-exec" parameter, which launches a second script. The second script executes the desired actions once the desired view has been configured.

While this approach may be feasible, it is important to note that it has not been directly tested and could introduce potential complexities.

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