diskimage-builder/diskimage_builder/lib/ramdisk-image-create at b85bc24761a505295be1cefc66e7d54aa1ae18e3 - sig_cloud/diskimage-builder - Rocky Enterprise Software Foundation Git Service

sig_cloud/diskimage-builder

Ian Wienand 7446c32197 Move diskimage-image-create to an entry point

It has always been a weird thing that dib is a python package, but
is totally driven by the disk-image-create script.  It creates this
strange division that is hard to explain.

This moves disk-image-create to a regular python entry-point

Currently, this simply exec()s the original disk-image-create script.

However, we now have a (private) interface between disk-image-create
written in python and the driver shell script.  Here's some things we
could do, for example:

* Argument parsing is generally nicer in Python, and then end result
  is mostly just setting environment variables to flag different things
  in the shell script.  I could see us moving the argument-parsing into
  diskimage_builder.disk_image_create:main() and just setting things in
  os.environ before the exec()).

* I7092e1845942f249175933d67ab121188f3511fd sets IMAGE_ELEMENT_YAML in
  disk-image-create by calling-back to element-info.  We can just call
  element_dependencies.find_all_elements() in here an export is to
  os.environ before disk-image-create starts.

* remove need for ramdisk-image-create symlink by just exporting
  IS_RAMDISK based on sys.argv[1] value

* you could even unit test some of this :)

Change-Id: I69ca3d26fede0506a6353c077c69f735c8d84d28

2016-11-02 05:12:11 +00:00

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