See https://github.com/input-output-hk/nix-tools/pull/101
We should look up hsPkgs.${pkg-name}.components.exe.${component-name}
instead of including the package as a dependency.
Adding `hsPkgs.${pkg-name}` a tool it is not clear which executable in the package `haskell.nix` should choose.
Haskell.nix did not deal with this well and in fact it could lead to `nix-shell` crashing. For instance using `shellFor` to make a shell for building `haskell-language-server` with `cabal build` crashed as a dependency on `ghcide` the executable (by the `ghcide-bench` executable) caused infinite recursion. Allowing `ghcide-bench` to correctly depend just on `components.exes.ghcide` fixes this.
This PR also includes:
* Updated materialized files built with the new nix-tools and latest index-state
* Small update to GHCJS (pins happy) to fix issue that showed up when the materialization was updated
* A fix for the infinite recursion issue when updating materialized files (by adding ghc-boot-packages-unchecked).
* Performance fix for shellFor (checks just the names of component derivations when filtering).
Fixes:
Warning: `stdenv.lib` is deprecated and will be removed in the next release. Please use `pkgs.lib` instead. For more information see https://github.com/NixOS/nixpkgs/issues/108938
Also removes the custom-tools as haskell-language-server is now in
hackage!
Removes the custom-tools as haskell-language-server is now in
hackage!
We considered also adding support for -wrapper, but decided it was better to fix emacs so that it works if just haskell-language-server is present.
* Throw better error when conf files are missing
Previously, if some directories were missing .conf files, an error like
this would be thrown:
cp: missing destination file operand after '/nix/store/pnmrz06g0sa4s3yx53hgmr9k8jrh6ww0-ouroboros-network-framework-lib-ouroboros-network-framework-0.1.0.0-haddock-config/lib/ghc-8.6.5/package.conf.d'
While normally this shouldn't occur, I've seen it happen in CI anyways,
with the problem disappearing if the store path that's missing the files
was rebuilt a couple times.
With this commit, it becomes much easier to figure out which store path
is missing the files, which would be very hard to figure out from the
previous message.
The builtins.fetchGit used by haskell.nix clones only the subset of a
repository corresponding to HEAD. So if we have a workflow that has a
branch "development" as HEAD, but the stack.yaml only targets commits
from "master", then it will be unable to fetch any commit.
Fixes#592
The [dependent-map](https://hackage.haskell.org/package/dependent-map)
package for instance is not clear on which free license applies to
which parts of the code, but that does not mean it is not free.
`cabal2nix` maps LicenseRef-OtherLicense to `meta.license = "unknown"`
`cabal-to-nix` and `haskell.nix` map it to a more detailed attribute
set but it includes `free = false` and that causes packages like
`dependent-map` to fail to install when `allowUnfree` has not been set.
This change removes the `free` attribute altogether, which seems more
principled than asserting that the `OtherLicense` cannot be `free`.
* Update getting started for NixOS users
Based on the file that writes nix.conf, and visual inspection, these settings update the nix.conf on NixOS as specified.
* Better tutorial structure
responding to feedback
I think this is more correct: other package that depend on the system
odbc package may not need freetds, the problem is that the Haskell odbc
package doesn't declare its dependency on freetds.
* Adding odbc alias to the unixODBC package
* Adding odbc alias to the unixODBC package
* Adding odbc alias to the unixODBC package
* Adding comments about odbc package dependencies
