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authorJade Lovelace <software@lfcode.ca>2022-05-07 08:42:08 -0700
committerDouglas Wilson <douglas.wilson@gmail.com>2022-07-29 11:02:41 +0100
commit2036454bf6a86e14d9da9da5a19ce49ff3975fd7 (patch)
treee88aa191bea3974c290f558db8cc480fcf08ef29 /html-test/ref
parent2368e9329e6600b46000abd24ec00b7e27bcae75 (diff)
Fix hyperlinks to external items and modules (#1482)
Fixes #1481. There were two bugs in this: * We were assuming that we were always getting a relative path to the module in question, while Nix gives us file:// URLs sometimes. This change checks for those and stops prepending `..` to them. * We were not linking to the file under the module. This seems to have been a regression introduced by #977. That is, the URLs were going to something like file:///nix/store/3bwbsy0llxxn1pixx3ll02alln56ivxy-ghc-9.0.2-doc/share/doc/ghc/html/libraries/base-4.15.1.0/src which does not have the appropriate HTML file or fragment for the item in question at the end. There is a remaining instance of the latter bug, but not in the hyperlinker: the source links to items reexported from other modules are also not including the correct file name. e.g. the reexport of Entity in esqueleto, from persistent. NOTE: This needs to get tested with relative-path located modules. It seems correct for Nix based on my testing. Testing strategy: ``` nix-shell '<nixpkgs>' --pure -A haskell.packages.ghc922.aeson mkdir /tmp/aesonbuild && cd /tmp/aesonbuild export out=/tmp/aesonbuild/out genericBuild ln -sf $HOME/co/haddock/haddock-api/resources . ./Setup haddock --with-haddock=$HOME/path/to/haddock/exec --hyperlink-source ``` (cherry picked from commit ab53ccf089ea703b767581ac14be0f6c78a7678a)
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