search-m2

# Search Maven Local Repository (search-m2) Use this skill to find which dependency JAR contains a class and to inspect JAR contents in `~/.m2/repository`. ## Preconditions - Work from the user’s current directory. - Look for `pom.xml` files in the current directory tree and use them to resolve dependency names and versions. ## Key paths - Maven local repo: `~/.m2/repository` - Dependency JAR path pattern: `~/.m2/repository/<groupId path>/<artifactId>/<version>/<artifactId>-<version>.jar` ## Steps 1. **Discover pom files**: run `find . -name pom.xml` from the current directory. - If multiple poms exist, prefer the closest one to the current directory or ask the user which project/module to use. 2. **Extract dependency coordinates**: - If the user provides a group/artifact, search the poms for that dependency and read its version. - If versions are defined via properties (e.g., `${foo.version}`), resolve the property from the same pom (or parent if obvious). 3. **Resolve the JAR path** using the groupId/artifactId/version mapping above. - If the version is not found, list available versions in `~/.m2/repository/<groupId path>/<artifactId>/` and ask the user which to inspect. 4. **Search for classes**: - List classes: `jar tf <jar> | rg '\.class$'` - Find a specific class: `jar tf <jar> | rg '<ClassName>(\.class)?$'` 5. **Inspect class details** (if requested): - `javap -classpath <jar> <fully.qualified.ClassName>` ## Useful commands ### Find a class across all jars (fallback) ```bash rg -g '*.jar' --files ~/.m2/repository | while read -r jar; do jar tf "$jar" | rg -q 'com/example/MyClass.class' && echo "$jar" done ``` ### Resolve versions for a dependency ```bash ls ~/.m2/repository/<groupId path>/<artifactId>/ ``` ## Notes - If the user is vague, start by identifying the relevant pom.xml and extracting dependency coordinates. - If the dependency is transitive and not in the pom, check `mvn -q -DskipTests dependency:tree` (only if needed and the user agrees).