Aosp - Xref

| Tool | Strengths | Weaknesses | | :--- | :--- | :--- | | | Official, always up-to-date, cross-repo, semantic, blame integration | Requires internet, no local editing | | Local AOSP checkout + ctags | Offline, integrates with vim/emacs | Huge disk space, slow initial build of tags, no cross-repo easily | | OpenGrok (hosted privately) | Powerful for internal forks | Outdated for main AOSP, complex to set up | | GitHub search (mirrors) | Familiar UI, easy to share links | Incomplete mirrors, no symbol-level xref, rate-limited | | Android Studio | Best for editing and running code | Requires full sync and build, heavy IDE |

wget https://github.com tar -xvf opengrok-1.13.x.tar.gz cp opengrok-1.13.x/lib/source.war /var/lib/tomcat10/webapps/ Use code with caution. Step 3: Run the Indexer

Mirror the specific AOSP manifests and your custom repositories into a local directory using the Repo tool. xref aosp

Because OpenGrok powers these platforms, you can leverage advanced query syntax:

Recognizing the need for a robust, official solution, Google launched at android.com. Built on Google's internal code-searching technology (Kythe/Groops), this platform fundamentally changed how developers interact with AOSP. | Tool | Strengths | Weaknesses | |

The indexing command generates cross-reference data in /var/opengrok/data/ , after which the web interface becomes fully functional.

: It provides robust indexing for languages used throughout AOSP, including Java, Kotlin, C++, and Rust Official Tooling : The official implementation is hosted at cs.android.com blame integration | Requires internet

You will never go back.