haskellPathsInDir
lib.filesystem.haskellPathsInDir
Docs pulled from | This Revision | 13 minutes ago
A map of all haskell packages defined in the given path, identified by having a cabal file with the same name as the directory itself.
Inputs
root
-
The directory within to search
Type
Path -> Map String Path
Noogle detected
Implementation
The following is the current implementation of this function.
haskellPathsInDir =
root:
let # Files in the root
root-files = builtins.attrNames (builtins.readDir root);
# Files with their full paths
root-files-with-paths =
map (file:
{ name = file; value = root + "/${file}"; }
) root-files;
# Subdirectories of the root with a cabal file.
cabal-subdirs =
builtins.filter ({ name, value }:
builtins.pathExists (value + "/${name}.cabal")
) root-files-with-paths;
in builtins.listToAttrs cabal-subdirs;