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| author | Ben Millwood <thebenmachine+git@gmail.com> | 2012-09-07 17:22:46 +0100 |
|---|---|---|
| committer | Ian Lynagh <ian@well-typed.com> | 2012-11-30 11:54:27 +0000 |
| commit | 2c6939a5b0b11950712be160d2712aee0e6f8b4b (patch) | |
| tree | ab177c374979ade75654f98f8d80a0a28e9927c0 /utils/ghc-pkg | |
| parent | 779f10fdedbeeb31891f3f3772cbc2dfdd32e1ee (diff) | |
| download | haskell-2c6939a5b0b11950712be160d2712aee0e6f8b4b.tar.gz | |
Make ghc-pkg print less on error.
Diffstat (limited to 'utils/ghc-pkg')
| -rw-r--r-- | utils/ghc-pkg/Main.hs | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/utils/ghc-pkg/Main.hs b/utils/ghc-pkg/Main.hs index e727f4d903..6e9dba6dab 100644 --- a/utils/ghc-pkg/Main.hs +++ b/utils/ghc-pkg/Main.hs @@ -98,7 +98,7 @@ main = do Left err -> die err (_,_,errors) -> do prog <- getProgramName - die (concat errors ++ usageInfo (usageHeader prog) flags) + die (concat errors ++ shortUsage prog) -- ----------------------------------------------------------------------------- -- Command-line syntax @@ -185,6 +185,9 @@ deprecFlags = [ ourCopyright :: String ourCopyright = "GHC package manager version " ++ Version.version ++ "\n" +shortUsage :: String -> String +shortUsage prog = "For usage information see '" ++ prog ++ " --help'." + usageHeader :: String -> String usageHeader prog = substProg prog $ "Usage:\n" ++ @@ -408,11 +411,9 @@ runit verbosity cli nonopts = do recache verbosity cli [] -> do - die ("missing command\n" ++ - usageInfo (usageHeader prog) flags) + die ("missing command\n" ++ shortUsage prog) (_cmd:_) -> do - die ("command-line syntax error\n" ++ - usageInfo (usageHeader prog) flags) + die ("command-line syntax error\n" ++ shortUsage prog) parseCheck :: ReadP a a -> String -> String -> IO a parseCheck parser str what = |