mohganji Setup DRY
One-time guided setup. Adds DRY violation detection at both CI and pre-commit hook level. Defaults to setting up both -- confirms with user before proceeding.
Workflow
Step 1 -- Detect project setup
- Identify primary language(s) from file extensions and config files
- Identify source directories (e.g.
src/,lib/,app/) - Check for existing duplication detection tools (e.g. jscpd, PMD CPD)
- Check if
.github/workflows/already exists
Present findings to user for confirmation before proceeding.
If detection is ambiguous, use AskUserQuestion to clarify:
- If language can't be determined: ask what language(s) the project uses
- If no clear source directories: ask which directories contain production code (vs. config, scripts, etc.)
- If existing duplication tools found: ask if they want to replace or run alongside
Step 2 -- Ask user preferences
Use AskUserQuestion for each:
- Where to enforce -- default is both, confirm with user:
- Both CI and pre-commit hook (recommended)
- CI only -- GitHub Actions workflow
- Pre-commit hook only -- local enforcement
- Similarity threshold -- minimum Jaccard similarity to flag as duplicate
- Suggest 0.8 (80% structural similarity)
- User can raise/lower
- Minimum block size -- smallest code block to consider
- Suggest 5 lines -- ignore trivially small matches
- User can adjust
- CI enforcement mode (if CI selected):
- Fail the check (recommended) -- PR cannot merge on new duplicates
- Warn only -- post a comment but don't block
Step 3 -- Generate files
- If CI selected: generate
.github/workflows/dry-check.yml - If pre-commit hook selected: write hook script to
.git/hooks/pre-commit(or append to existing) and make it executable - Hook should run DRY analysis on staged files against the existing codebase
Step 4 -- Verify
- Read back generated files and sanity-check them
- Show the user what was generated for review
- Run a sample DRY check as a smoke test
Key rules
- Never overwrite existing workflow files or hooks without asking
- Idempotent -- running again detects existing setup and skips