% Copyright (C) 20022004 David Roundy
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2, or (at your option)
% any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
% Boston, MA 021101301, USA.
\begin{code}
module Darcs.Repository.Motd (get_motd, show_motd) where
import Control.Monad ( unless )
import Darcs.Flags ( DarcsFlag( Quiet, XMLOutput ) )
import Darcs.External ( fetchFilePS, Cachable(..) )
import Darcs.Global ( darcsdir )
import qualified Data.ByteString as B (null, hPut, empty, ByteString)
import Darcs.Utils ( catchall )
import System.IO ( stdout )
\end{code}
\paragraph{motd}\label{motd}
The \verb!_darcs/prefs/motd! file may contain a ``message of the day''
which will be displayed to users who get or pull from the repository without the
\verb!--quiet! option.
\begin{code}
get_motd :: String -> IO B.ByteString
get_motd repo = fetchFilePS (repo++"/"++darcsdir++"/prefs/motd") (MaxAge 600)
`catchall` return B.empty
show_motd :: [DarcsFlag] -> String -> IO ()
show_motd opts repo = unless (Quiet `elem` opts || XMLOutput `elem` opts) $ do
motd <- get_motd repo
unless (B.null motd)
$ do B.hPut stdout motd
putStrLn "**********************"
\end{code}