Copilot reads .ruby-version with prepended 1. (read 3.3.1, as 1.3.3.1) #471
Description
Describe the bug
Affected version
0.0.340
Steps to reproduce the behavior
- Ask, what is my Ruby version in my Ruby version file?
- Get back the version with a 1 dot in front.
Expected behavior
Get the real version back.
Additional context
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│ CLI Version 0.0.340 ▀▀████████████▀▀ │
└── ──┘
Version 0.0.340 · Commit fac8111
Copilot can write, test and debug code right from your terminal. Describe a task to get started or enter ? for help. Copilot uses AI, check for mistakes.
● Logged in with gh as user: joklabo_microsoft
● Folder /Users/klabo/src/ios has been added to trusted folders.
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ > Does my ruby version file look correct to you? │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
● I'll check for Ruby version files in your repository to help you verify if
they're configured correctly.
✓ Find Ruby version and related files
$ find /Users/klabo/src/ios -maxdepth 2 -type f ( -name ".ruby-version" -o -name ".ruby-gemset" -o -name ".rvmrc" -o -name "Gemfile" ) 2>/dev/null
↪ 2 lines...
✓ List directory . (51 files)
✓ Read .ruby-version (6 lines)
✓ Read Gemfile (22 lines)
✓ Check locked Ruby version in Gemfile.lock
$ cat /Users/klabo/src/ios/Gemfile.lock | grep -A 2 "RUBY VERSION"
↪ 1 line...
✓ Check end of Gemfile.lock for Ruby version
$ tail -10 /Users/klabo/src/ios/Gemfile.lock
↪ 11 lines...
● Your .ruby-version file contains 1.3.3.1, which appears to be incorrect. This
doesn't match a valid Ruby version format. Ruby versions typically follow the
pattern MAJOR.MINOR.PATCH (e.g., 3.1.4, 2.7.8).
The version string 1.3.3.1 looks more like it might be from CocoaPods or another
tool. Based on your project setup:
- Your Gemfile specifies CocoaPods 1.16.2 and Fastlane 2.223.0
- Your Gemfile.lock shows Bundler version 2.3.24
- For this iOS project, you'd typically want Ruby 2.7+ or 3.x
Recommended fix: Update your .ruby-version to a proper Ruby version like:
- 3.1.4 (stable, widely supported)
- 3.2.2 (newer stable)
- 2.7.8 (older but compatible)
Check which Ruby version your team is using, or if you have Ruby installed, run
ruby -v to see what's currently available on your system.
● Configured MCP servers: xcodebuildmcp
● Connected to GitHub MCP Server
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│ > When I look at it, it looks like 3.3.1. Could you be reading it wrong? Also, if you look on Origin Master, it looks like it's 3.3.1. │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
● You're absolutely right! Let me check again more carefully:
✓ Read ruby version file raw
$ cat /Users/klabo/src/ios/.ruby-version
↪ 2 lines...
✓ Check hex dump to see exact characters
$ hexdump -C /Users/klabo/src/ios/.ruby-version
↪ 3 lines...
✓ Check version on origin/master
$ cd /Users/klabo/src/ios && git show origin/master:.ruby-version
↪ 2 lines...
● You're completely correct, and I apologize for the error! The file contains
3.3.1, not 1.3.3.1. The hex dump confirms it's 33 2e 33 2e 31 which is indeed
3.3.1.
Your .ruby-version file is correct:
- It specifies Ruby 3.3.1
- It matches what's on origin/master
- This is a valid and recent Ruby version (released in December 2023)
The file looks good! Ruby 3.3.1 is compatible with the gems in your Gemfile
(CocoaPods 1.16.2, Fastlane 2.223.0, etc.).
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│ > Why did you think it was 1.3.3.1? │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
● Looking back at my tool output, the str_replace_editor view command showed:
<output>1.3.3.3.1</output>
This appears to be a display issue with the str_replace_editor tool when viewing
very short files. Notice it shows line numbers (the 1. prefix), then the content
3.3.1. So it was displaying:
- Line number: 1.
- Content: 3.3.1
But I incorrectly read the concatenated output 1.3.3.3.1 as the file content
itself, when it was actually the line number followed by the version. When I
used cat and hexdump (which don't add line numbers), it correctly showed 3.3.1.
My mistake was not recognizing that the str_replace_editor tool was prepending
line numbers to the output, similar to cat -n. I should have been more careful
in interpreting the tool's output format.
~/src/ios[⎇ master*]