Golang Incremental Testing Library
This package can be run at any go program root, and only tests incremental changes from a previous git commit.
Use the command go get this library and install it on your GOPATH.
go get github.com/braincorp/goink
you should now be able to run the --help command. By defualt, the command will be installed on your gopath.
goink --help
Goink uses watches changes using git, and walks the dependency tree of your go program, finding the packages that have changed.
It then only tests the changed packages and their dependencies using go test. It works essentiall as below
find changed files -> find changed packages -> check main packages for dependency
To test only changes to the main.go binary, on a branch that stems from main. To test in this repo, change/edit/add/delete a file and run the command below. This will test the main package (since it has changed). You can also pass multiple entrypoints to goink.
goink --entrypoints main.go --head main
Some similar packages use the "go/build" build context to walk the AST tree as if we were compiling the program. On the other hand, I decided to call out to go list. To me, this is the prefered method since the parralalization is handled by go list and go list is fast. The multi depth dependencies are also resolved and stored so I can check packages for dependencies without walking. There was no reason to reimpliment go list.
https://github.com/kisielk/godepgraph (uses the internal "go/build" package to import)
Have fun, and go Ink it! :)