Add argument parsing support

app/Main.hs

@@ -1,27 +1,20 @@
 {-# LANGUAGE ImplicitParams #-}
 {-# LANGUAGE OverloadedStrings #-}
+
 module Main where
 
 import PullWatch.PullWatch
-  ( monitorPRs
-  , getLatestPRs
-  , getLatest
-  , prID
-  )
-
 import PullWatch.Environment (getPAT)
+import qualified Data.Default as Default (def)
 
-import Data.Default (def)
-import Control.Applicative
-
-main :: IO ()
-main = do
+doMonitor :: RepoArgs -> IO ()
+doMonitor (RepoArgs owner repo) = do
   -- Set up authentication token from environment
   pat <- getPAT
   let ?pat = pat
 
-  --prIDs <- getLatestPRs [("racket", "racket")]
-  --print prIDs
-  monitorPRs def [("weskerfoot", "PullWatch")]
+  monitorPRs Default.def [(owner, repo)]
 
   return ()
+
+main = parseRepoArgs doMonitor

pullwatch.cabal

@@ -34,6 +34,7 @@ library
   build-depends:
       base >=4.7 && <5
     , github
+    , argparser
     , base-compat
     , text
     , bytestring
@@ -55,6 +56,7 @@ executable pullwatch-exe
       base >=4.7 && <5
     , pullwatch
     , github
+    , argparser
     , base-compat
     , text
     , bytestring
@@ -77,6 +79,7 @@ test-suite pullwatch-test
       base >=4.7 && <5
     , pullwatch
     , github
+    , argparser
     , base-compat
     , text
     , bytestring

src/PullWatch/PullWatch.hs

@@ -1,6 +1,7 @@
 {-# LANGUAGE NoImplicitPrelude #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE ImplicitParams #-}
+{-# LANGUAGE FlexibleInstances #-}
 
 module PullWatch.PullWatch
     (  getLatest
@@ -9,6 +10,8 @@ module PullWatch.PullWatch
      , prTitle
      , prID
      , monitorPRs
+     , parseRepoArgs
+     , RepoArgs(..)
     ) where
 
 import GitHub.Data.PullRequests
@@ -28,12 +31,17 @@ import Data.Vector ((!?))
 import GitHub.Data.Id (untagId)
 import GitHub.Data.Name (untagName)
 import Prelude.Compat
+import System.Console.ArgParser
+import System.Console.ArgParser.QuickParams (RawRead, rawParse)
+import GitHub.Data.Name
 
 import qualified Data.IntMap as IntMap
 import qualified Data.Text as T
 import qualified GitHub.Auth as Auth
 import qualified GitHub.Endpoints.PullRequests as PR
 
+-- Type definitions
+
 type PullRequests = IntMap PullRequest
 
 data PullRequest = PR {
@@ -45,6 +53,11 @@ data PullRequest = PR {
                   }
 
                   deriving (Show)
+
+data RepoArgs = RepoArgs (PR.Name PR.Owner)
+                         (PR.Name PR.Repo)
+                  deriving (Show)
+
 instance Default PullRequest where
   def = PR {
             prText = ""
@@ -54,6 +67,21 @@ instance Default PullRequest where
           , prID = 0
   }
 
+instance RawRead (PR.Name a) where
+  rawParse x = Just (N $ T.pack x, x)
+
+
+-- Argument parser
+parseRepos :: ParserSpec RepoArgs
+
+parseRepos = RepoArgs
+  `parsedBy` reqPos "owner"
+  `andBy` reqPos "repo"
+
+parseRepoArgs = withParseResult parseRepos
+
+
+-- Helper functions
 tenMinutes = 300000000*2
 
 getPRId = Just . fromIntegral . untagId . simplePullRequestId

stack.yaml

@@ -41,6 +41,8 @@ packages:
 extra-deps:
   - fdo-notify-0.3.1
   - github-0.21
+  - git: git@github.com:sbergot/ArgParser.git
+    commit: 801ffac4551382a0b08a50ae3b98402ebbf35b30
 
 # Override default flag values for local packages and extra-deps
 # flags: {}