Adds method to shared helpers for adding procs to be evaluated
which can add default modifications to the option parser used
by commands. Customized option parser class within Vagrant
handles processing defined procs to set options.
This adjusts how triggers are implemented during a normal run. Any
defined triggers which are applicable are located and injected into
the run stack as the stack is built, including hook type triggers.
Support is included for dynamic hook lookup.
The data type used when defining triggers has also been relaxed to
support symbols, strings, or constants.
When the provider supports parallel actions and actions are being
run in parallel, do not immediately kill the process on failure.
Instead terminate the action thread and log the exit code. Once
all running actions have completed, the process will then exit
with the stored exit code.
Prior to this commit, if a guest name was given as a symbol, the
filter_triggers method would fail to properly match it with the only_on
option, as it is not a valid type to the #String.match method. This
commit fixes that by converting the parameter to a string so that it can
be properly matched on the guest.
Prior to this commit, the `abort` option for triggers would just call
`exit`, which would end up raising a SystemExit exception, signaling
Vagrant to abort. This broke down however in a multithreaded context
like when running multiple guests at once on supported providers,
resulting in Vagrant failing to exit cleanly and instead raise an
exception. This commit changes that by instead using `Process.exit!` to
abort Vagrant.
This commit introduces some basic functionality for typed triggers:
- command
- action
Command triggers are triggers that will run before or after a given
sub-command.
Action triggers are for running triggers before or after internal
actions for Vagrant. This could be before or after a provision step,
before or after synced folders, or networking, etc.
This commit updates how the trigger `run` inline option works by only
applying `Shellwords.split` to the inline command if it is going to be
run on non-Windows hosts. Otherwise pass the inline script directly to
be executed by Powershell.
