FWIW you can do this with Sourcegraph today, searching over both diffs (code changes)[0] and commit messages[1]: [0] https://sourcegraph.com/search?q=context:g

FWIW you can do this with Sourcegraph today, searching over both diffs (code changes)[0] and commit messages[1]: [0] https://sourcegraph.com/search?q=context:global+repo:%5Egithub%5C.com/golang/go%24+type:diff+TODO&patternType=standard https://sourcegraph.com/search?q=context:global+repo:%5Egith... [1] https://sourcegraph.com/search?q=context:global+repo:%5Egithub%5C.com/golang/go%24+type:commit+TODO&patternType=standard https://sourcegraph.com/search?q=context:global+repo:%5Egith... (I work there, just commenting on my own though. we're all pretty happy to have competition, more awareness of code search, etc.)