strizhechenko / optparse-modular-example

I tried to find a nice way for modular optparse that would provide opportunity to create meta-utils easily.

optparse-modular-example

I tried to find a nice way for modular optparse that would provide opportunity to create meta-utils easily.

This repo is just a proof of concept.

How it works

Every top has common and specific options:

$ top1 --help
Usage: top1 [options]

Options:
  -h, --help            show this help message and exit
  -f FILE, --file=FILE  file to monitor
  -i INTERVAL, --interval=INTERVAL
                        interval between file readings in seconds
  -t TOP1_SPECIFIC1, --top1-specific1=TOP1_SPECIFIC1
                        Top1 specific option #1
  -s TOP1_SPECIFIC2, --top1-specific2=TOP1_SPECIFIC2
                        Top1 specific option #2

Here are top2 specific options:

$ top2 --help
Usage: top2 [options]

Options:
  -h, --help            show this help message and exit
  -f FILE, --file=FILE  file to monitor
  -i INTERVAL, --interval=INTERVAL
                        interval between file readings in seconds
  -u TOP2_SPECIFIC1, --top2-specific1=TOP2_SPECIFIC1
                        Top2 specific option #1
  -w TOP2_SPECIFIC2, --top2-specific2=TOP2_SPECIFIC2
                        Top2 specific option #2

And metatop has both all other tops' specific and common options:

$ metatop --help
Usage: metatop [options]

Options:
  -h, --help            show this help message and exit
  -f FILE, --file=FILE  file to monitor
  -i INTERVAL, --interval=INTERVAL
                        interval between file readings in seconds
  -t TOP1_SPECIFIC1, --top1-specific1=TOP1_SPECIFIC1
                        Top1 specific option #1
  -s TOP1_SPECIFIC2, --top1-specific2=TOP1_SPECIFIC2
                        Top1 specific option #2
  -u TOP2_SPECIFIC1, --top2-specific1=TOP2_SPECIFIC1
                        Top2 specific option #1
  -w TOP2_SPECIFIC2, --top2-specific2=TOP2_SPECIFIC2
                        Top2 specific option #2

There are still few problems:

Duplicity in utils' __main__ part:

Top1 and Top2 have simillar __main__

if __name__ == '__main__':
    top = Top1()
    top.parse_options()
    print top.options

if __name__ == '__main__':
    top = Top2()
    top.parse_options()
    print top.options

Partly it's because of difference between MetaTop and Top1/Top2:

if __name__ == '__main__':
    print MetaTop().options

BaseTop.__init__() seems to be a perfect place for parse_options() call if not this difference.