denis: introduce dummy assignments whose deadlines are manually triggered

[charliemirabile]

dummy assignments can be created using the new dummy option to configure initially all deadlines are set in the far future so that testing code can make submissions request oopsies etc without racing against the clock

when the relevant scenario has been staged, the trigger option can be passed to configure specifying an assignment and component name and the due date will be set to the current moment and the corresponding event will be run synchronously.

[theyoyojo]

I'm going to rebase the new test PR onto this and make the changes

[theyoyojo]

assuming it all works I'll approve, seems to work so far

[theyoyojo]

no such assignment asdf
no such component 1
Traceback (most recent call last):
  File "/usr/local/share/denis/./configure.py", line 169, in <module>
    exit(main())
         ^^^^^^
  File "/usr/local/share/denis/./configure.py", line 77, in main
    subparser_func(**kwargs)
  File "/usr/local/share/denis/./configure.py", line 164, in trigger
    if err := sigqueue(1, signal.SIGRTMIN, asn.id * 3 + component_id):
                                           ^^^^^^
AttributeError: 'NoneType' object has no attribute 'id'
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a se -c 1
no such component 1
Traceback (most recent call last):
  File "/usr/local/share/denis/./configure.py", line 169, in <module>
    exit(main())
         ^^^^^^
  File "/usr/local/share/denis/./configure.py", line 77, in main
    subparser_func(**kwargs)
  File "/usr/local/share/denis/./configure.py", line 164, in trigger
    if err := sigqueue(1, signal.SIGRTMIN, asn.id * 3 + component_id):
                                                        ^^^^^^^^^^^^
UnboundLocalError: cannot access local variable 'component_id' where it is not associated with a value

when you run ./denis/configure.sh trigger -a $X -c $Y where $X doesn't refer to an extant assignment or $Y doesnt refer to on of the three valid options you get this error

[theyoyojo]

I'll take a look later

[theyoyojo]

bet lgtm:

joel@fedora:~/src/singularity$ ./denis/configure.sh dummy -a foo
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo
usage: configure trigger [-h] -a ASSIGNMENT -c COMPONENT
configure trigger: error: the following arguments are required: -c/--component
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -b xxx
usage: configure trigger [-h] -a ASSIGNMENT -c COMPONENT
configure trigger: error: the following arguments are required: -c/--component
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c xxx
no such component xxx
joel@fedora:~/src/singularity$ echo $?
1
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c initial
joel@fedora:~/src/singularity$ echo $?
0
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foobar -c initial
no such assignment foobar
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c initial
joel@fedora:~/src/singularity$ echo $?
0
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c peer
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c initial
joel@fedora:~/src/singularity$ echo $?
0
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c final
joel@fedora:~/src/singularity$ echo $?
0
joel@fedora:~/src/singularity$ ./denis/configure.sh trigger -a foo -c xxx
no such component xxx
joel@fedora:~/src/singularity$ echo $?
1