Add optional hie_bios output group to haskell_repl #1263
Merged
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This allows users to configure
hie-bios
to use these outputs to determine GHC flags. See #1262 (WIP) for an example setup withghcide
.ghci
andhie-bios
in thehaskell_repl
implementation.cc_wrapper
to avoid duplication.haskell_repl
that produces a file holding all relevant ghci flags for that target. (Excludes flags that are ghci specific, e.g.repl_ghci_args
or flags required for-ghci-script
)A downside of this approach, compared to e.g. hrepl, is that
haskell_repl
targets are not generated on-the-fly but have to be defined inBUILD
files. However, this is a general limitation ofhaskell_repl
.