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-rw-r--r--src/Xmobar/App/Config.hs50
1 files changed, 18 insertions, 32 deletions
diff --git a/src/Xmobar/App/Config.hs b/src/Xmobar/App/Config.hs
index 48209d3..a183128 100644
--- a/src/Xmobar/App/Config.hs
+++ b/src/Xmobar/App/Config.hs
@@ -1,7 +1,7 @@
------------------------------------------------------------------------------
-- |
-- Module: Xmobar.Config.Defaults
--- Copyright: (c) 2018, 2019 Jose Antonio Ortega Ruiz
+-- Copyright: (c) 2018, 2019, 2020 Jose Antonio Ortega Ruiz
-- License: BSD3-style (see LICENSE)
--
-- Maintainer: jao@gnu.org
@@ -17,11 +17,10 @@
module Xmobar.App.Config (defaultConfig,
- xmobarConfigDir,
xmobarDataDir,
xmobarConfigFile) where
-import Control.Monad (when)
+import Control.Monad (when, filterM)
import System.Environment
import System.Directory
@@ -66,29 +65,6 @@ defaultConfig =
, verbose = False
}
--- | Return the path to the xmobar configuration directory. This
--- directory is where user configuration files are stored (e.g, the
--- xmobar.hs file). You may also create a @lib@ subdirectory in the
--- configuration directory and the default recompile command will add
--- it to the GHC include path.
---
--- Several directories are considered. In order of
--- preference:
---
--- 1. The directory specified in the @XMOBAR_CONFIG_DIR@ environment variable.
--- 2. The @~\/.xmobar@ directory.
--- 3. The @XDG_CONFIG_HOME/xmobar@ directory.
---
--- The first directory that exists will be used. If none of the
--- directories exist then (1) will be used if it is set, otherwise (2)
--- will be used.
-xmobarConfigDir :: IO String
-xmobarConfigDir =
- findFirstDirWithEnv False "XMOBAR_CONFIG_DIR"
- [ getAppUserDataDirectory "xmobar"
- , getXdgDirectory XdgConfig "xmobar"
- ]
-
-- | Return the path to the xmobar data directory. This directory is
-- used by Xmobar to store data files such as the run-time state file
-- and the configuration binary generated by GHC.
@@ -140,11 +116,21 @@ findFirstDirWithEnv create envName paths = do
Nothing -> findFirstDirOf create paths
Just envPath -> findFirstDirOf create (return envPath:paths)
+xmobarInConfigDirs :: FilePath -> IO (Maybe FilePath)
+xmobarInConfigDirs fn = do
+ env <- lookupEnv "XMOBAR_CONFIG_DIR"
+ xdg <- getXdgDirectory XdgConfig "xmobar"
+ app <- getAppUserDataDirectory "xmobar"
+ hom <- getHomeDirectory
+ let candidates = case env of
+ Nothing -> [app, xdg, hom]
+ Just p -> [p, app, xdg, hom]
+ fs <- filterM (\d -> fileExist (d </> fn)) candidates
+ return $ if null fs then Nothing else Just (head fs </> fn)
+
xmobarConfigFile :: IO (Maybe FilePath)
xmobarConfigFile =
- ffirst [ xdg "xmobar.hs", xdg "xmobarrc", home ".xmobarrc"]
- where xdg p = fmap (</> p) xmobarConfigDir
- home p = fmap (</> p) getHomeDirectory
- ffirst [] = return Nothing
- ffirst (f:fs) =
- f >>= fileExist >>= \e -> if e then fmap Just f else ffirst fs
+ fmap ffirst $ mapM xmobarInConfigDirs ["xmobar.hs", ".xmobarrc", "xmobarrc"]
+ where ffirst [] = Nothing
+ ffirst (Nothing:fs) = ffirst fs
+ ffirst (p:_) = p