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Cylc Message Help Contains two patterns of use #5921

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@wxtim wxtim commented Jan 12, 2024

Closes #5883

A single script might have multiple different valid arguments.

for example cylc message can be either

cylc message -- [WORKFLOW JOB [[SEVERITY:]MESSAGE ...]]] __or__
cylc message --	[[SEVERITY:]MESSAGE ...]]]

This PR fixes the Cylc message docs.

  • Refactored part of the init method of CylcOptionParser. into a method for ease of testing.
  • Added unit tests to get complete coverage of new method.

Note

The reason for this behaviour is given further down in the doc:

For backward compatibility, if number of arguments is less than or equal to 2,
the command assumes the classic interface, where all arguments are messages.
Otherwise, the first 2 arguments are assumed to be workflow ID and job
identifier.

Check List

  • I have read CONTRIBUTING.md and added my name as a Code Contributor.
  • Contains logically grouped changes (else tidy your branch by rebase).
  • Does not contain off-topic changes (use other PRs for other changes).
  • Applied any dependency changes to both setup.cfg (and conda-environment.yml if present).
  • Tests are included (or explain why tests are not needed).
  • This is effectively a documentation change and doesn't need logging in CHANGES.md or in the docs.
  • If this is a bug fix, PR should be raised against the relevant ?.?.x branch.

@wxtim wxtim self-assigned this Jan 16, 2024
@wxtim wxtim added this to the cylc-8.2.5 milestone Jan 16, 2024
@wxtim wxtim linked an issue Jan 16, 2024 that may be closed by this pull request
@oliver-sanders
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Close, but the broken use case is still covered by the first usage, I think this does it:

diff --git a/cylc/flow/scripts/message.py b/cylc/flow/scripts/message.py
index 061d842475..b12f0e180f 100755
--- a/cylc/flow/scripts/message.py
    b/cylc/flow/scripts/message.py
@@ -109,8  109,9 @@ def get_option_parser() -> COP:
         argdoc=[
             WORKFLOW_ID_ARG_DOC,
             ('JOB', 'Job ID - CYCLE/TASK_NAME/SUBMIT_NUM'),
             ('[SEVERITY:]MESSAGE', 'Messages'),
             COP.optional(
-                ('[SEVERITY:]MESSAGE ...', 'Messages')
                 ('[SEVERITY:]MESSAGE', 'Messages')
             ),
             COP.LINEBREAK,
             COP.optional(('[SEVERITY:]MESSAGE ...', 'Messages')),

@oliver-sanders
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Whilst working with this branch checked out (as of last review) I got traceback for cylc tui <workflow>/<run1>.

@MetRonnie MetRonnie requested review from MetRonnie and removed request for markgrahamdawson January 17, 2024 16:27
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Is this test really worthwhile? Might end up as a maintenance drag

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@wxtim wxtim Jan 18, 2024

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I semi agree. On the other hand, it's easy enough to regenerate the files. I wonder if it might be worth just testing

  • cylc message
  • cylc broadcast
  • cylc tui

Which demonstrate both patterns in the code I've changed in this PR, with the benefit of adding a double check on the two scripts which we least want to drift. I added TUI to the list, because it seems to be an outlier. This test would have caught the errors in my PR.

Do you think that this is reasonable @MetRonnie ?

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@MetRonnie MetRonnie Jan 18, 2024

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Might be worth it for cylc message and cylc broadcast as these have to be stable for task scripts. Not sure why it would be worth it for TUI

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Seems a little non-standard - it broke the original PR>

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@oliver-sanders oliver-sanders Jan 22, 2024

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I don't get the point of this test?

All it's doing is checking whether any of the help text has changed?

It's not actually checking that the interfaces are documented correctly.

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@wxtim wxtim Jan 23, 2024

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The point is to check whether changes to the option parser have caused a change in the help text: My original changes caused unwanted changes - like the change to TUI.

Happy enough to remove if you really feel it's total overkill

@wxtim wxtim requested a review from MetRonnie January 18, 2024 08:57
@wxtim wxtim force-pushed the fix.broken_argdoc_cylc_message branch from 5c1147b to ad27da3 Compare January 18, 2024 17:06
@oliver-sanders
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oliver-sanders commented Jan 22, 2024

You might want to have a quick skim over cylc message --help bearing in mind #5883...

@wxtim wxtim marked this pull request as draft January 23, 2024 10:15
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wxtim commented Feb 20, 2024

You might want to have a quick skim over cylc message --help bearing in mind #5883...

I'm not sure what your point was here. As far as I can see the behaviour makes sense and is correct but the docs are wrong. What behaviour are you unhappy with?

The behaviour described in #5883 looks exactly as I'd expect from a careful reading of --help.

@oliver-sanders - I'm not sure I remember what your objection to the way the app actually works was...

@oliver-sanders oliver-sanders modified the milestones: cylc-8.2.5, 8.2.x Feb 22, 2024
@MetRonnie MetRonnie modified the milestones: 8.2.x, 8.3.x May 21, 2024
might have multiple different valid arguments.

e.g. Cylc message can be either
cylc message -- [WORKFLOW JOB [[SEVERITY:]MESSAGE ...]]]
__or__
cylc message --	[[SEVERITY:]MESSAGE ...]]]

- Refactored part of the __init__ method of CylcOptionParser.
  into a method for ease of testing.
- Added unit tests to get complete coverage of new method.

Response to review: the ... from the second usage.
Added extra information to the descriptions of the args.

remove cli-help test
@wxtim wxtim force-pushed the fix.broken_argdoc_cylc_message branch from ad27da3 to 1fd2de3 Compare October 4, 2024 14:51
@wxtim wxtim changed the base branch from 8.2.x to 8.3.x October 4, 2024 14:51
@wxtim wxtim changed the title Allow CylcOptionParser to handle >1 valid use cases. Cylc Message Help Contains two patterns of use Oct 4, 2024
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cylc message: three or more outputs cause problems
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