CLI Tool `rails-crons`

[niteshpurohit]

Feature Request

Description

Provide a CLI that offers cron explanation, next fire times, and ad-hoc command execution bound to cron schedules.

Use Case

Quickly test and explore cron expressions without loading a Rails app.

Proposed Solution

• Implement CLI (Thor/GLI) with commands:
  • explain "<expr>" → human text
  • next "<expr>" --count N → N upcoming times (UTC/local toggle)
  • run "<expr>" -- cmd "echo 'tick'" → execute command at matching times (single-run mode)
• Packaged as exe/rails-crons executable.

Alternatives Considered

Rake-only interfaces — CLI preferred for non-Rails users.

Additional Context

Ensure robust error messages and non-zero exit codes for invalid inputs.

Checklist

• I have searched for a similar feature request and didn't find any duplicates.
• I have included all the required information.
• I have tagged the issue with the label "enhancement".