chore: Refactor find & list so that they use a single write instead of intermediate writes

[yhakbar]

Description

Refactors find & list so that they build up the string they're going to write before writing.

Ensures write operation is atomic, and prevents unnecessary syscalls.

TODOs

Read the Gruntwork contribution guidelines.

• I authored this code entirely myself
• I am submitting code based on open source software (e.g. MIT, MPL-2.0, Apache)]
• I am adding or upgrading a dependency or adapted code and confirm it has a compatible open source license
• Update the docs.
• Run the relevant tests successfully, including pre-commit checks.
• Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Added / Removed / Updated [X].

Migration Guide

Summary by CodeRabbit

Release Notes

• Refactor
  • Enhanced output rendering efficiency in the find and list commands through optimized buffer handling.

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Project	Deployment	Preview	Comments	Updated (UTC)
terragrunt-docs	Ready	Preview	Comment	Nov 5, 2025 1:39pm

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

Two CLI command files are refactored to buffer output before writing. The find.go command's outputText function and list.go command's rendering functions (renderLong, renderTabular, renderDot) now use strings.Builder to accumulate formatted output in memory and write once, replacing per-item direct writes.

Changes

Cohort / File(s)	Summary
CLI output buffering optimization cli/commands/find/find.go, cli/commands/list/list.go	Both files refactored to buffer text output using strings.Builder before writing. find.go's outputText accumulates formatted lines. list.go's render functions (renderLong, renderTabular, renderDot) buffer output and write once. In list.go, function renderLongHeadings (error-returning) is replaced with buildLongHeadings (string-returning); error handling consolidated to final write.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Verify error handling is correctly consolidated to final buffer write operations
• Confirm buildLongHeadings function properly replaces renderLongHeadings behavior and integrates with renderLong
• Check that all output content is correctly accumulated in buffers (no formatting or data loss during transition from streaming to buffered writes)

Suggested reviewers

• denis256
• levkohimins

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/refactor-find-list-for-single-write

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📜 Recent review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 29825b8 and 5c9415c.

📒 Files selected for processing (2)

• cli/commands/find/find.go (2 hunks)
• cli/commands/list/list.go (4 hunks)

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

The base branch was changed.