[HBASE-24806] Small Updates to Functionality of Shell IRB Workspace

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1
• Fix Version/s: 3.0.0-alpha-1, 2.4.0
• Component/s: shell
• Hadoop Flags: Reviewed
• Assignee: Elliot Miller
• Reporter: Elliot Miller
• Created: 31/Jul/20 13:38
• Updated: 17/Jun/22 06:12
• Resolved: 18/Aug/20 20:15

Description

There are a few amendments I want to make to the first patch for shell IRB workspaces:

1. Hide the new warning: "irb: warn: can't alias help from irb_help."
2. Split Shell::Shell#eval_io into eval_io and exception_handler. This will be a better separation of concerns for both usage and testing.
   1. Why is this change so important? At the moment, eval_io may raise SystemExit, which would cause the ruby test executor to quit without running all tests. The method eval_io also used to refer to a global variable $fullTraceback, which is a poor separation of concerns.
3. Allow finding script2run in the load path. While undocumented, the 2.x shell did this, so we may need to do this for compatibility.

Issue Links

• links to: GitHub Pull Request #2232