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There's this https://github.com/google/zoekt. It's pretty light on features, but dang if it isn't fast and precise.

thanks!

If you install sourcegraph, you get the same btw. Sourcegraph indexed search is powered by zoekt.

zoekt is absolutely awesome, I was reading it’s code yesterday to figure out how it does ngram indexing and search.

I found this on github in Google's org : https://github.com/google/codesearch

That "codesearch" is only superficially related to this one. The main feature of _this_ codesearch that makes it so useful is the cross references to callers, callees, and overrides. Ye olde codesearch has more in common with things like livegrep.

What's the internal codesearch tool written in?

> The main feature of _this_ codesearch that makes it so useful is the cross references to callers, callees, and overrides. Ye olde codesearch has more in common with things like livegrep.

However this part of internal codesearch is the one part that is actually (partially) open sourced: kythe.io

yeah, title is misleading.

https://cs.chromium.org/ is the next best thing.

"Google Open Sources Search Code"... wouldn't that be something