openrewrite-analyze-recipes

OpenRewrite Analyze Recipes

Dry-run all configured OpenRewrite recipes, rank them by number of violations, and present the ranked list. Optionally run a selected recipe in isolation.

Parse active recipes from the POM

Find the rewrite-maven-plugin configuration in pom.xml and extract the list of <recipe> elements inside <activeRecipes>. Save this list for later; you'll need the fully-qualified recipe names.

Also extract the <activeStyles> entries if any exist.

Run the dry run

mvn rewrite:dryRun 2>&1 | tee .llm/rewrite-dryrun.log | tail -20

This may take several minutes. The dry run produces:

• Console output with [WARNING] lines listing which recipes would change which files
• A patch file at ./target/rewrite/rewrite.patch

Save the patch

cp ./target/rewrite/rewrite.patch .llm/rewrite-dryrun.patch

Count violations per recipe

The Maven log contains indented [WARNING] lines with recipe names. Extract and count them:

grep '\[WARNING\]' .llm/rewrite-dryrun.log \
  | grep -E '^\S+\s+\[WARNING\]\s{4,}' \
  | sed 's/.*\[WARNING\] *//' \
  | sort | uniq -c | sort -rn \
  > .llm/rewrite-violations-per-rule.txt

Compute summary statistics

echo "Total files changed: $(grep 'These recipes would make changes' .llm/rewrite-dryrun.log | wc -l | tr -d ' ')"
echo "Patch size: $(wc -l < .llm/rewrite-dryrun.patch) lines"
echo "Total rule violations: $(awk '{s+=$1}END{print s}' .llm/rewrite-violations-per-rule.txt)"
echo "Unique rules triggered: $(wc -l < .llm/rewrite-violations-per-rule.txt | tr -d ' ')"

Present the ranked list

Show the user:

• The summary statistics
• The full ranked table from .llm/rewrite-violations-per-rule.txt formatted as a markdown table with columns Count and Recipe
• Mark composite recipes (recipes that contain other recipes) with "(composite)" if you can identify them from the log's tree structure

Ask which recipe to run

Use AskUserQuestion to ask which recipe to run. Offer the top 3 leaf (non-composite) recipes as options, using their fully-qualified names. The user may also type any recipe name.