Validate the .info file

lib/SlackBuilder/Info.hs

@@ -6,6 +6,7 @@ module SlackBuilder.Info
     , updateDownloadVersion
     ) where
 
+import Control.Applicative (Alternative(..))
 import Control.Monad.Combinators (sepBy)
 import qualified Data.ByteArray as ByteArray
 import Data.ByteString (ByteString)
@@ -33,6 +34,7 @@ import Text.URI
     , render
     , unRText
     )
+import qualified Data.Word8 as Word8
 
 type GenParser = Parsec Void ByteString
 
@@ -42,6 +44,11 @@ data PackageInfo = PackageInfo
     , homepage :: Text
     , downloads :: [URI]
     , checksums :: [Digest MD5]
+    , downloadX64 :: [URI]
+    , checksumX64 :: [Digest MD5]
+    , requires :: [ByteString]
+    , maintainer :: Text
+    , email :: Text
     } deriving (Eq, Show)
 
 variableEntry :: ByteString -> GenParser ByteString
@@ -52,8 +59,8 @@ variableEntry variable = string (Char8.append variable "=\"")
 variableSeparator :: GenParser ()
 variableSeparator = string " \\" *> space
 
-packageDownloads :: GenParser [URI]
-packageDownloads = string "DOWNLOAD=\""
+packageDownloads :: ByteString -> GenParser [URI]
+packageDownloads variableName = string (variableName <> "=\"")
     *> sepBy parserBs variableSeparator
     <* string "\"\n"
 
@@ -65,19 +72,41 @@ hexDigit =
 packageChecksum :: GenParser ByteString
 packageChecksum = ByteString.pack <$> count 16 hexDigit
 
-packageChecksums :: GenParser [ByteString]
-packageChecksums = string "MD5SUM=\""
+packageChecksums :: ByteString -> GenParser [ByteString]
+packageChecksums variableName = string (variableName <> "=\"")
     *> sepBy packageChecksum variableSeparator
     <* string "\"\n"
 
+packageRequires :: GenParser [ByteString]
+packageRequires = string "REQUIRES=\""
+    *> sepBy packageName space
+    <* string "\"\n"
+
+packageName :: GenParser ByteString
+packageName = takeWhile1P Nothing isNameToken
+  where
+    isNameToken x = Word8.isAlphaNum x
+        || x == Word8._hyphen
+        || x == Word8._underscore
+
 parseInfoFile :: GenParser PackageInfo
 parseInfoFile = PackageInfo
-    <$> (Char8.unpack <$> variableEntry "PKGNAM")
+    <$> (Char8.unpack <$> packagePrgnam)
     <*> (Text.decodeUtf8 <$> variableEntry "VERSION")
     <*> (Text.decodeUtf8 <$> variableEntry "HOMEPAGE")
-    <*> packageDownloads
-    <*> (mapMaybe digestFromByteString <$> packageChecksums)
+    <*> packageDownloads "DOWNLOAD"
+    <*> (mapMaybe digestFromByteString <$> packageChecksums "MD5SUM")
+    <*> packageDownloads "DOWNLOAD_x86_64"
+    <*> (mapMaybe digestFromByteString <$> packageChecksums "MD5SUM_x86_64")
+    <*> packageRequires
+    <*> (Text.decodeUtf8 <$> variableEntry "MAINTAINER")
+    <*> (Text.decodeUtf8 <$> variableEntry "EMAIL")
     <* eof 
+  where
+    packagePrgnam = (string "PKGNAM" <|> string "PRGNAM")
+        >> string "=\""
+        *> packageName
+        <* "\"\n"
 
 updateDownloadVersion :: PackageInfo -> Text -> Maybe String -> [URI]
 updateDownloadVersion package toVersion gnomeVersion