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# Bazel Runfiles
This is a small utility to enable discovery of the Bazel runfiles location. This is useful in tests for example.
```haskell
module Main (main) where
import qualified Bazel.Runfiles as Runfiles
import Control.Monad (when)
import System.Process (callProcess)
main :: IO ()
main = do
r <- Runfiles.create
foo <- readFile (Runfiles.rlocation r "io_tweag_rules_haskell/tools/runfiles/test-data.txt")
when (lines foo /= ["foo"]) -- ignore trailing newline
$ error $ "Incorrect contents: got: " ++ show foo
callProcess (Runfiles.rlocation r "io_tweag_rules_haskell/tools/runfiles/bin") []
```
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