git-annex/CmdLine/GlobalSetter.hs
Joey Hess aec2cf0abe
addon commands
Seems only fair, that, like git runs git-annex, git-annex runs
git-annex-foo.

Implementation relies on O.forwardOptions, so that any options are passed
through to the addon program. Note that this includes options before the
subcommand, eg: git-annex -cx=y foo

Unfortunately, git-annex eats the --help/-h options.
This is because it uses O.hsubparser, which injects that option into each
subcommand. Seems like this should be possible to avoid somehow, to let
commands display their own --help, instead of the dummy one git-annex
displays.

The two step searching mirrors how git works, it makes finding
git-annex-foo fast when "git annex foo" is run, but will also support fuzzy
matching, once findAllAddonCommands gets implemented.

This commit was sponsored by Dr. Land Raider on Patreon.
2021-02-02 16:32:49 -04:00

25 lines
703 B
Haskell

{- git-annex global options
-
- Copyright 2015-2021 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module CmdLine.GlobalSetter where
import Types.DeferredParse
import Common
import Annex
import Options.Applicative
globalFlag :: Annex () -> Mod FlagFields GlobalSetter -> GlobalOption
globalFlag setter = flag' (DeferredParse setter)
globalSetter :: (v -> Annex ()) -> Parser v -> GlobalOption
globalSetter setter parser = DeferredParse . setter <$> parser
parserGlobalOptions :: [GlobalOption] -> Parser GlobalSetter
parserGlobalOptions [] = DeferredParse <$> pure noop
parserGlobalOptions l = DeferredParse . mapM_ getParsed
<$> many (foldl1 (<|>) l)