Allow running one or more commands based on the value of
a global configuration variable. This could, of course,
be done in a Python module with some custom code,
but for simple cases this is more straightforward
to configure through module instances.
Uses the CommandList developed for the ShellProcess
module to do the actual work.
FIXES#874
- Move CommandList so it can be used from more modules than
just ShellProcess
- Allow a CommandList to run itself. This centralizes
code for executing one or more commands and simplifies
the ShellProcess module.
Various small cleanups:
- mention instance id in log message
- code formatting / style
- This turns off the space-available check in the welcome module;
without libparted, always fail that check.
- Allows running the welcome module on OS without libparted.
- Also allow a single string instead of a list
- Add count() method to CommandList
- Drop over-engineering, add more logging
- Expand tests with some more examples
This is basically dummyprocess, except with an expanded configuration
interface so you can run 1 or more shell commands in the live
or target system with a suitable configuration file and instance
of shellprocess in settings.conf.
It can replace downstream modules that implement their own
process modules with a command, by an instance of shellprocess.
Make a function out of explaining-skipped-modules, and call it
not only after collecting all the modules, but also after
the feature summary, so that it's quite clear which modules
are skipped.
Scenario is this: you have no suitable installation devices on
your system (everything is mounted, or HDD has died), click through
to partition page, where you have all the buttons available, but no
devices in the list. The following actions then cause a crash:
- clicking "back"
- clicking any button
Prevent that:
- you can click "back", but if there is no device selected
nothing happens to the device state (no nullptr deref,
and no crash)
- button code is now more resilient to this scenario
- buttons are hidden until a device is available, so you
can't even click on them to trigger the code.
Modules may be skipped for different reasons: SKIP_MODULES
is the traditional approach to suppress some, but other modules
may have unmet build requirements (e.g. Plasma Look-and-Feel,
or the Partitioning module) and should be able to opt-out
of being built. For all those skipped, log it explicitly after
all the modules have been examined.
Only CMake-based (e.g. C++) modules support opting-out in this way.
This is meant to run one or more jobs based on specific global
configuration values; if could also be done by a Python
module with just some if's, but this one can be used with
just the config file and covers a bunch of use-cases.
