Perfect! I now have enough relevant information to provide a comprehensive summary for the PR review. Let me compile the findings:

Git Extension and CLI Script Best Practices for PR #3 Review

Based on my research, here are the key relevant facts for reviewing this pull request that adds bin/git-gtr as a Git extension:

Git Extension Standards

Git automatically resolves subcommands from executables in the PATH that follow the naming convention git-*. These subcommands can be executed with git <command>. The PR correctly follows this convention by naming the executable git-gtr.

Git subcommands are standalone executables that live in the Git exec path (normally /usr/lib/git-core), and Git's wrapper looks in the rest of your $PATH for extensions if not found in the Git exec path. This means placing both gtr and git-gtr in $PATH is the appropriate approach.

Shell Script Implementation

The implementation using exec gtr "$@" follows established best practices:

• The shebang pattern and exec forwarding with quoted "$@" is the recommended approach for shell script wrappers to preserve argument handling correctly, including quoted parameters.
• Using exec to forward to another process is a standard pattern in shell scripts for wrapper implementations.

Implementation Languages

While shell scripts are acceptable for Git extensions, most subcommands are written in C or shell. The chosen shell script approach is appropriate for this use case.

Related Considerations

The PR enables git gtr invocation, which means users can call the tool either as a standalone gtr command or as the more idiomatic git gtr Git subcommand. Users often find custom Git extensions that integrate naturally with Git to feel like natural components of Git itself.,,,