A command line program for extending the import list of a Haskell source file.
hsimport gets the module name and the symbol name to import as arguments,
parses the given source file by using the library haskell-src-exts and than
tries to only extend the import list if it's necessary. If the symbol is already
imported or if the whole module is already imported, than the given source file
isn't changed.
cabal install hsimport
$ hsimport -m 'Control.Monad' SomeSource.hs`
=> import Control.Monad
$ hsimport -m 'Control.Monad' -s 'when' SomeSource.hs
=> import Control.Monad (when)
$ hsimport -m 'Control.Monad' -q 'CM' SomeSource.hs
=> import qualified Control.Monad as CM
dan@machine ~> hsimport --help
hsimport [OPTIONS] [SOURCEFILE]
A command line program for extending the import list of a Haskell source
file.
Common flags:
-m --modulename=ITEM The module to import
-s --symbolname=ITEM The symbol to import, if empty, the entire module
is imported
-q --qualifiedname=ITEM The name to use for a qualified module import
-o --outputsrcfile=FILE Save modified source file to file, if empty, the
source file is modified inplace
-h --help Display help message
-v --version Print version information
There is some rudimentarily handling for code using CPP, but the import statements might be added at the wrong place, because the lines containing CPP directives are ignored and therefore they aren't considered in the source line count.
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