Put the Item class in a separate header; give it functionality
to create itself from Variants (e.g. from the configuration data)
and to run itself (do whatever the item is supposed to do).
This makes the polymorphic approach unnecessary: we just have
items that are sufficiently smart.
This moves do-a-thing to the Item, while the Job now has one
job: be a loop around creating Items and running items.
- do not link (explicitly) to Calamares libraries, the CMake
functions do that automatically.
- while here, tidy and remove commented-out-bits
- while here, remove unneeded includes
- point to main Calamares site in the 'part of' headers instead
of to github (this is the "this file is part of Calamares"
opening line for most files).
- remove boilerplate from all source files, CMake modules and completions,
this is the 3-paragraph summary of the GPL-3.0-or-later, which has
a meaning entirely covered by the SPDX tag.
The build instructions are not that interesting, it's a toss-up
between CC0 and BSD-2, but because other CMake bits are BSD-2-Clause,
apply that to more CMakeLists. The copyright date isn't all that
accurate, but these are just inconsequential files.
While here, tidy up and get rid of some useless intermediates.
- preservefiles generally needs to have the target filesystems
mounted, so that it can preserve to them; but you can also
configure it such that there is no need for mounted filesystems
(e.g. in OEM setup).
- Add an example line in CMakeLists.txt to show how that would be done.
- more flexible way to keep (all kinds of) files from the host
system, into the target system.
- WIP: substitutions like in shellprocess (@@ROOT@@, @@HOME@@ probably)
- WIP: creating a JSON file from global settings
