Clean the package store and remove temporary files.

Usage: cabal clean [FLAGS]

Removes all temporary files created during the building process (.hi, .o,
preprocessed sources, etc.) and also empties out the local caches (by
default).


Flags for clean:
 -h, --help                   # Show this help text
 --project-dir=DIR            # Set the path of the project directory
 --project-file=FILE          # Set the path of the cabal.project file
                                (relative to the project directory when
                                relative)
 --project-file-parser=PARSER # Set the parser to use for the project file
 -v[n], --verbose[=n]         # Control verbosity (n is 0--3, default
                                verbosity level is 1)
 --builddir=DIR               # The directory where Cabal puts generated build
                                files (default dist)
 -s, --save-config            # Save configuration, only remove build
                                artifacts
