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Only generate hoogle database once #1151
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Closes #1147
Afaik, hoogle databases are located in
~/.hoogle.Thus, if we invoke
hoogle generatemultiple times, we override the old database.In the shake commands
cabal-build-all,build-allwe generate it multiple times.As I understood it, we override all databases except the last one.
This change makes sure, shake installs hoogle and generates docs only once per command.
Also, shake now searches for the executable before installing it. If the executable is found, it is used to generate the hoogle database. Otherwise it is installed by either stack or cabal and then the database is generated. Executable is always installed into
.local/binor the respective path for Macos and Windows.