[Trigger]
Type = File
Operation = Install
Operation = Upgrade
Operation = Remove
Target = usr/share/doc/ghc/html/libraries/*
Target = !usr/share/doc/ghc/html/libraries/index.html

[Action]
Description = Rebuilding Haskell doc index...
When = PostTransaction
Exec = /bin/bash -c "cd /usr/share/doc/ghc/html/libraries && ./gen_contents_index"
Depends = ghc-static
Depends = bash