fix(init): keep fish fzf selection in scope

[helizaga]

Summary

• Fix Fish shell integration so gtr cd fzf Enter keeps _gtr_key and _gtr_line in function scope.
• Add BATS regression coverage for the generated Fish wrapper.

Fixes #169.

Testing

• bats tests/init.bats
• bats tests/
• shellcheck lib/commands/init.sh
• git diff --check

Summary by CodeRabbit

• Refactor

  • Improved variable declaration logic for better code reliability and consistency.

• Tests

  • Added test case to verify variable scoping and assignment behavior in the initialization handler.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 87644129-0972-42a0-bc02-f760dc9485f0

📥 Commits

Reviewing files that changed from the base of the PR and between b8ca496 and 39af5e9.

📒 Files selected for processing (2)

• lib/commands/init.sh
• tests/init.bats

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Walkthrough

Fish shell variable scoping issue fixed in the gtr cd fzf interactive picker. Variables _gtr_key and _gtr_line are now predeclared in function scope before conditional assignment, preventing them from being scoped to if/else block boundaries. A new test validates correct variable scoping behavior.

Changes

Cohort / File(s)	Summary
Fish Shell Scoping Fix lib/commands/init.sh	Moved set -l declarations of _gtr_key and _gtr_line outside the if/else block and converted conditional assignments to plain set to preserve function-scope visibility. Addresses issue where variables declared inside blocks become inaccessible after block end.
Variable Scoping Test tests/init.bats	Added test case validating that _gtr_key and _gtr_line are declared with function-local scope and correctly assigned based on fzf selection count. Verifies the fix prevents variable scope leakage.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 A Fish swam deep in scope's dark sea,
Where variables hid where they shouldn't be,
But now with set -l placed just right,
Those local vars stay in sight!
The rabbit hops, the cd works true,
Fish shell scoping—problem through! 🌳

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: fixing Fish shell variable scoping for fzf selection in the init function to keep variables in function scope rather than block scope.
Linked Issues check	✅ Passed	The pull request directly addresses issue #169 by implementing the suggested fix: declaring _gtr_key and _gtr_line in function scope before the if/else block and assigning without -l inside branches. A regression test is also added as requested.
Out of Scope Changes check	✅ Passed	All changes are within scope: the init.sh fix directly addresses the Fish scoping issue from #169, and the test addition provides regression coverage as suggested in the issue.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/fish-fzf-cd-scope

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