nixpkgs/pkgs/development/libraries/aspell/aspell-with-dicts.nix
Frederik Rietdijk c0cf19608f aspellWithDicts: create derivation with aspell and selected dictionaries
Currently, `aspell` checks the active profiles for dictionaries. While
this may be convenient, it does not work with `nix-shell` and it doesn't
allow any isolation.

This commit adds the possibility to use composition by creating a
derivation with `symlinkJoin` that contains all the chosen dictionaries,
and another derivation that wraps the executables linking to the dictionaries.

Nix example:

my_aspell = aspellWithDicts(ps: with ps; [ en nl ])

`nix-shell` example:

nix-shell -p 'aspellWithDicts(ps: with ps; [ en nl ])'
2017-07-17 10:17:20 +02:00

35 lines
678 B
Nix

# Create a derivation that contains aspell and selected dictionaries.
# Composition is done using `pkgs.buildEnv`.
{ aspell
, aspellDicts
, makeWrapper
, symlinkJoin
, runCommand
}:
f:
let
# Dictionaries we want
dicts = f aspellDicts;
# A tree containing the dictionaries
dictEnv = symlinkJoin {
name = "aspell-dicts";
paths = dicts;
};
in runCommand "aspell-env" {
buildInputs = [ makeWrapper ];
} ''
# Construct wrappers in /bin
mkdir -p $out/bin
pushd "${aspell}/bin"
for prg in *; do
if [ -f "$prg" ]; then
makeWrapper "${aspell}/bin/$prg" "$out/bin/$prg" --set ASPELL_CONF "data-dir ${dictEnv}/lib/aspell"
fi
done
popd
''