feat: Support async operations + TTY dependent programs 😋

[zFernand0]

Proposed changes

The goal of this PR is to add support for :async and :forget special keywords (Fix #3206), while at the same time fixing multiple Ctrl+C cancellation signals AND the forwarding of stdin, stdout, and stderr (Fix #3474)

Note: The iTerms do not support streaming of output (stdout or stderr) from scripts and programs. As of now, we just wait until all output is ready to be printed out, unless you use :async or :forget 😅

Release Notes

Milestone: 3.3.0

Changelog:

• Added support for asynchronous operations.
• BugFix: Allowed multiple commands to be cancelled in succession.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Enhancement (non-breaking change which adds or improves functionality)
• Breaking change (a change that would cause existing functionality to not work as expected)
• Documentation (Markdown, README updates)
• Other (please specify above in "Proposed changes" section)

Checklist

General

• I have read the CONTRIBUTOR GUIDANCE wiki
• All PR dependencies have been merged and published (if applicable)
• A GIF or screenshot is included in the PR for visual changes
• The pre-publish command has been executed:
  • v2 and below: yarn workspace vscode-extension-for-zowe vscode:prepublish
  • v3: pnpm --filter vscode-extension-for-zowe vscode:prepublish

Code coverage

• There is coverage for the code that I have added
• I have added new test cases and they are passing
• I have manually tested the changes

Deployment

• I have added developer documentation (if applicable)
• Documentation should be added to Zowe Docs
  • If you're an outside contributor, please post in the #zowe-doc Slack channel to coordinate documentation.
  • Otherwise, please check with the rest of the squad about any needed documentation before merging.
• These changes may need ported to the appropriate branches (list here):

Further comments

iterm-uss-python3-script.mov

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.56%. Comparing base (8a505f7) to head (8ba75a9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3640      +/-   ##
==========================================
+ Coverage   93.55%   93.56%   +0.01%     
==========================================
  Files         123      123              
  Lines       13808    13823      +15     
  Branches     3239     3245       +6     
==========================================
+ Hits        12918    12934      +16     
+ Misses        888      887       -1     
  Partials        2        2              

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[github-actions]

📅 Suggested merge-by date: 5/23/2025

[JWaters02]

Hi @zFernand0 I was able to replicate the problem in my issue the same - still getting no response from the simple program, followed by "Operation cancelled!" if I do Ctrl + C.

[github-actions]

Build Details

Name	Information
PR Commit	8ba75a9
Merge Commit	f40a858
Size	3.28 MB
Last Updated By	zFernand0
Last Updated	Jun 2, 25, 7:35:21 PM UTC
Expires At	Aug 31, 25, 7:33:33 PM UTC

[anaxceron]

Left a comment re: the changelog

[github-actions]

Reminder: This pull request has a merge-by date coming up within the next 24 hours. Please review this PR as soon as possible.

@t1m0thyj @JWaters02 @JillieBeanSim

[zFernand0]

The unexpected behavior/output is likely related to:

• iTerm(uss): Issue Unix Cmd: command output not shown when Bash used #3644

[traeok]

I agree with Joshua's latest suggestion but don't have any additional requests

Suggested changes made! 😋