Let "CPack External Generator" optionally perform staging and invocation of an external packaging tool
I found the new CPack External Generator and was wondering if it could optionally stage the installation files (perhaps providing multiple layout options) so that they could be picked up by an external packaging tool.
It would also be nice if you'd be able to optionally specify a command that the generator would invoke to run the external packaging tool.
Important locations (staging area, json file, output directory, build directory (I'd like to locate/read CPackConfig.cmake)) could be communicated to the command through environment variables or command line placeholders substituted by CPack.