54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
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---
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name: result-refactor
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description: Convert traditional Go error handling to Result[T] monadic style
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version: 1.0
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parameters:
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package_path:
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type: string
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default: internal/service
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description: Package to refactor
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dry_run:
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type: bool
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default: true
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description: If true, only generate patches
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allowed_shell_commands:
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- go test ./...
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- go fmt ./...
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- go vet ./...
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- rg --files
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- git diff --name-only
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- jq
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---
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# Result[T] Refactoring Recipe
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**Overview**
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Refactors all error handling in the target package to use the new Result[T] pattern.
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## Execution Steps
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### Step 1: Discover files
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**Objective:** Find every file that needs changing.
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**Instructions:** Recursively scan `{{.package_path}}` for `.go` files containing `if err != nil`.
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**Expected output:** A clean numbered list of full file paths (one per line).
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### Step 2: Refactor each file
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**Objective:** Generate the updated code.
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**Instructions:** For each file from Step 1:
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- Read the full original content.
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- Refactor it to use `Result[T]` instead of naked errors (follow existing style, preserve comments).
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- Return *ONLY* the complete new file inside a ```go code block (no explanations).
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**Expected output:** One ```go block per file, clearly labelled with the filename.
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### Step 3: Apply or patch
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**Objective:** Safely write changes or create reviewable output.
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**Instructions:**
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- If `dry_run` is true → create a unified diff patch file for review.
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- If false → write the new files (backup originals as `.bak`).
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**Expected output:** Confirmation of what was written + full path to any patch file.
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### Final Summary
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Give me a concise executive summary: number of files changed, any warnings or patterns you noticed, and your recommended next step.
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