try command does nothing when installed via RubyGems

[iwataka]

Description

When installing try-cli via RubyGems (gem install try-cli), running the try command does nothing and exits with code 0.

Possible Root Cause

The issue is in try.rb at line 789:

if __FILE__ == $0

When installed via RubyGems, a wrapper script (binstub) is automatically generated. The execution flow becomes:

1. User runs the RubyGems wrapper at /path/to/bin/try
2. $0 is set to the wrapper path
3. Wrapper calls Gem.activate_and_load_bin_path, which loads bin/try
4. bin/try executes require_relative '../try'
5. In try.rb: __FILE__ = .../gems/try-cli-1.7.1/try.rb, but $0 = /path/to/bin/try
6. Since __FILE__ != $0, the main execution block is skipped

Steps to Reproduce

gem install try-cli
try --help  # No output, exits 0

Expected Behavior

The help message should be displayed.

Actual Behaviour in my environment

My Environment

• WSL
• Fish shell
• Ruby 4.0.1 (installed via mise)
• try-cli 1.7.1

[MyYaYa]

same here

[Danielsmith66]

Can someone help me or explain to me how to create a new respiratory?

[MyYaYa]

Here is the translation of your analysis and solution into English:

---

Root Cause Analysis

This issue is caused by a bug in the try-cli gem itself. The gem's entry point, bin/try, uses require_relative '../try' to load the main logic. However, the core execution code inside try.rb is wrapped in an if __FILE__ == $0 conditional block.

When the script is loaded via require (or require_relative) rather than being executed directly as the primary script, __FILE__ (the file name) and $0 (the process name) do not match. As a result, the main code block is never triggered, and the command fails to execute.

---

Solutions

Option 1: Add to Shell Configuration

Add the following line to your ~/.bashrc or ~/.zshrc to initialize the environment:

eval "$(ruby /home/tiger/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/try-cli-1.7.1/try.rb init)"

Option 2: Create a Shell Alias (Recommended)

You can create an alias to bypass the buggy wrapper and call the main script directly with the Ruby interpreter:

alias try='ruby /home/tiger/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/try-cli-1.7.1/try.rb'

After applying either of these (and running source ~/.bashrc), commands like try --help will function correctly.

[yaserfarid82-cyber]

You like games and i don't have time for games

[yaserfarid82-cyber]

Bye bye

[achugr]

Please try this fix #88