So, this code base is 2-3 year old by now.
Are there any tools which I can run on this codebase and figure out what got deprecated? Which part needs immediate attention and need to be fixed to prevent future breakage?
LOC: 10,000
https://staticcheck.io checks for use of deprecated functions, variables, constants, and fields. https://github.com/alecthomas/gometalinter is also helpful for finding problem areas as it runs a bunch of linters.
Another thing to watch for is making sure you have consistent access to the code’s dependencies. A practical solution for now is to vendor them with https://golang.github.io/dep/. This will take care of you short term and will have a clean upgrade path when versioning is added to the go tools.
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