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gh-jwplatta-prompt-library-…/skills/ruby-pattern-detector/scripts/README.md
2025-11-30 08:30:07 +08:00

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# Pattern Detector / RuboCop Scripts
Executable shell scripts for code style checking and analysis.
## Scripts
### run_rubocop.sh
Run RuboCop with helpful options.
```bash
# Check all files
./run_rubocop.sh check
# Auto-fix safe violations
./run_rubocop.sh fix
# Auto-fix all violations (including unsafe)
./run_rubocop.sh fix-all
# Check only changed files
./run_rubocop.sh changed
# Check only staged files (for pre-commit)
./run_rubocop.sh staged
# Check specific file
./run_rubocop.sh lib/user.rb
```
**Modes:**
- `check` - Check code style (no changes)
- `fix` - Auto-fix safe violations (-a flag)
- `fix-all` - Auto-fix all violations (-A flag, use with caution)
- `changed` - Only check git-modified files
- `staged` - Only check git-staged files
- `<file_path>` - Check specific file
**Features:**
- Auto-detects RuboCop availability
- Smart git integration
- Helpful error messages
- Shows which mode is running
### rubocop_summary.sh
Generate comprehensive RuboCop summary.
```bash
./rubocop_summary.sh
```
**Output:**
```
📊 Generating RuboCop summary...
Summary:
Files inspected: 45
Total offenses: 127
Top offenses by cop:
42 Style/StringLiterals
23 Layout/LineLength
15 Style/Documentation
12 Metrics/MethodLength
...
Offense severity breakdown:
85 convention
32 warning
10 error
To fix auto-correctable offenses:
bundle exec rubocop -a
```
**Features:**
- Runs RuboCop with JSON output
- Parses and summarizes results
- Shows top offense types
- Severity breakdown
- Actionable next steps
**Requires:**
- jq (JSON processor)
- RuboCop gem
## Usage Examples
### Pre-Commit Workflow
```bash
# Check staged files before commit
./run_rubocop.sh staged
# Auto-fix if possible
./run_rubocop.sh fix
# Stage fixes
git add .
# Check again
./run_rubocop.sh staged
```
### Code Review Workflow
```bash
# Check changed files
./run_rubocop.sh changed
# Get detailed summary
./rubocop_summary.sh
# Fix safe violations
./run_rubocop.sh fix
# Review remaining issues manually
```
### Clean-up Workflow
```bash
# Get overview
./rubocop_summary.sh
# Fix safe violations
./run_rubocop.sh fix
# Review unsafe fixes
./run_rubocop.sh check
# Manually fix or disable cops
```
## RuboCop Configuration
Create `.rubocop.yml` for project-specific rules:
```yaml
AllCops:
NewCops: enable
TargetRubyVersion: 3.2
Exclude:
- 'db/schema.rb'
- 'vendor/**/*'
- 'node_modules/**/*'
Metrics/MethodLength:
Max: 10 # Sandi Metz's rule
Metrics/ClassLength:
Max: 100 # Sandi Metz's rule
Style/Documentation:
Enabled: false # Adjust as needed
```
## Integration with Git Hooks
Use `staged` mode in pre-commit hook:
```bash
#!/bin/bash
# .git/hooks/pre-commit
/path/to/run_rubocop.sh staged
```
## Requirements
- RuboCop gem
- jq (for rubocop_summary.sh)
- git (for changed/staged modes)