Basic functionality to list directories.

7 files changed, 151 insertions, 0 deletions

diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+Copyright Example Author Name (c) 2015
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Example Author Name nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/Setup.hs b/Setup.hs
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+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/photos.cabal b/photos.cabal
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+++ b/photos.cabal
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+name:                photos
+version:             0.1.0.0
+synopsis:            Simple project template from stack
+description:         Please see README.md
+homepage:            http://github.com/githubuser/photos#readme
+license:             BSD3
+license-file:        LICENSE
+author:              Example Author Name
+maintainer:          example@example.com
+copyright:           2010 Author Here
+category:            Web
+build-type:          Simple
+cabal-version:       >=1.10
+
+executable photos
+  hs-source-dirs:      src
+  main-is:             Main.hs
+  other-modules:
+      Data
+    , PhotoStore
+  default-language:    Haskell2010
+  build-depends:
+      base >= 4.7 && < 5
+    , servant
+    , servant-server
+    , aeson
+    , warp
+    , wai
+    , hflags
+    , directory
+    , transformers
diff --git a/src/Data.hs b/src/Data.hs
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+++ b/src/Data.hs
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+{-# LANGUAGE DeriveGeneric #-}
+module Data where
+
+import GHC.Generics
+
+data Album = Album
+  { name :: String
+  , pending :: Bool
+  } deriving (Eq, Show, Generic)
diff --git a/src/Main.hs b/src/Main.hs
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+++ b/src/Main.hs
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+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE TypeFamilies #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE TemplateHaskell #-}
+module Main where
+
+import Data.Aeson
+import GHC.Generics
+import Network.Wai
+import Network.Wai.Handler.Warp
+import Servant
+import HFlags
+import System.Exit
+import Control.Monad
+import Data
+import PhotoStore
+import Control.Monad.IO.Class
+
+defineFlag "port" (8081 :: Int) "Port to serve on"
+defineFlag "host" ("*6" :: String)  "Host to serve on (*6 for ipv6 mode)"
+defineFlag "pending_path" ("" :: String) "Path to pending albums"
+defineFlag "photos_path" ("" :: String) "Path to permanent albums"
+$(return [])
+
+instance ToJSON Album
+
+type PhotoApi = "albums" :> Get '[JSON] [Album]
+
+config = Config 
+  { pendingPath = flags_pending_path
+  , photosPath = flags_photos_path
+  }
+
+server :: Server PhotoApi
+server = liftIO (getAlbums config)
+
+photoApi :: Proxy PhotoApi
+photoApi = Proxy
+
+app :: Application
+app = serve photoApi server
+
+port = 8081
+settings :: Settings
+settings = setHost "*6" . setPort 8081 $ defaultSettings
+
+main :: IO ()
+main = do
+  $initHFlags "photos"
+  when (flags_pending_path == "") (die "--pending_path must be specified")
+  when (flags_photos_path == "") (die "--photos_path must be specified")
+  putStrLn $ "Starting server on port: " ++ (show port)
+  runSettings settings app
diff --git a/src/PhotoStore.hs b/src/PhotoStore.hs
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+++ b/src/PhotoStore.hs
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+module PhotoStore where
+
+import Data
+import System.Directory
+
+data Config = Config
+  { pendingPath :: String
+  , photosPath :: String
+  }
+
+validAlbumName name =
+     name /= "."
+  && name /= ".."
+
+getAlbums :: Config -> IO [Album]
+getAlbums config = do
+  pending <- getDirectoryContents (pendingPath config)
+  permanent <- getDirectoryContents (photosPath config)
+  return ([Album name True | name <- filter validAlbumName pending] ++
+          [Album name False | name <- filter validAlbumName permanent])
diff --git a/stack.yaml b/stack.yaml
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+++ b/stack.yaml
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+flags: {}
+packages:
+- '.'
+extra-deps: []
+resolver: lts-3.4