Expose programmatic equivalent of CLI commands

[araghukas]

Implements feature requested in #1853

edit: UX updated to

import covalent as ct

# start covalent
ct.covalent_start()

# stop covalent
ct.covalent_stop()

• I have added the tests to cover my changes.
• I have updated the documentation and CHANGELOG accordingly.
• I have read the CONTRIBUTING document.

[codecov]

Codecov Report

Merging #1854 (1daecca) into develop (21f8c0c) will increase coverage by 0.06%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1854      +/-   ##
===========================================
+ Coverage    83.74%   83.80%   +0.06%     
===========================================
  Files          291      293       +2     
  Lines        14316    14363      +47     
  Branches       195      195              
===========================================
+ Hits         11989    12037      +48     
+ Misses        2193     2192       -1     
  Partials       134      134              

Flag	Coverage Δ
Dispatcher	90.82% <ø> (ø)
Functional_Tests	51.29% <31.91%> (-0.08%)	⬇️
SDK	79.01% <100.00%> (+0.15%)	⬆️
UI_Backend	85.07% <ø> (ø)
UI_Frontend	73.35% <ø> (ø)

[santoshkumarradha]

gtg @araghukas few documentation asks. Can you expose these in the docs API folder please?

and also test 🙏

[santoshkumarradha]

@sriranjanivenkatesan can we pick this up and add it in the docs website please in API section?

[cjao]

Quick question @araghukas -- with this approach, does import covalent pull in covalent_dispatcher?

[cjao]

Instead of directly importing server-side code, would something like subprocess.run(["covalent", "start"]) work?

[araghukas]

Quick question @araghukas -- with this approach, does import covalent pull in covalent_dispatcher?

@cjao Yes it does introduce a covalent <- covalent_dispatcher dependency at the moment -- but @kessler-frost will fix that soon with in-function (instead of gloal) imports.

[araghukas]

Marking ready for review since the added tests are indeed passing now (tests/covalent_tests/programmatic/commands_test.py)

Test failures now are due to UI backend tests...

Is this expected @kessler-frost?

[kessler-frost]

Yep, I have fixed them in this PR: #1856, @AlejandroEsquivel will merge it soon, then we can merge this as well.

[kessler-frost]

Removing approval for now, needs some discussion.

Already approved by Casey

[santoshkumarradha]

@araghukas just checked this in google colab with latest pre-release, does not seem to be working 👀