change command line args for 'gallery'

make-pages/Main.hs

@@ -16,10 +16,9 @@ data Options =
       copyImages  :: Bool
     }
   | GalleryPage {
-      directory   :: FilePath,
+      files       :: [FilePath],
       includeNsfw :: Bool,
-      output      :: Maybe FilePath,
-      single      :: Bool
+      output      :: Maybe FilePath
     }
   deriving Show
 
@@ -28,14 +27,14 @@ optionsParser =
   (Opt.hsubparser (single <> gallery) <**> Opt.helper) `Opt.info` mainInfo
  where
   single = Opt.command "single" $ singleOpts `Opt.info` singleInfo
-  singleOpts = SinglePage <$> fileArg <*> nsfwSwitch <*> outputOpt <*> copyOpt
+  singleOpts = SinglePage <$> fileArg <*> nsfwSwitchS <*> outputOpt <*> copyOpt
   fileArg = Opt.strArgument $
     Opt.metavar "FILE" <> Opt.help "yaml file to read"
-  nsfwSwitch = Opt.switch $
+  nsfwSwitchS = Opt.switch $
     Opt.short 'n' <> Opt.long "nsfw" <>
     Opt.help "include nsfw versions"
   outputOpt = Opt.option (Just <$> Opt.str) $
-    Opt.short 'o' <> Opt.long "output" <>
+    Opt.short 'o' <> Opt.long "output" <> Opt.metavar "FILE" <>
     Opt.value Nothing <>
     Opt.help "output file (default: stdout)"
   copyOpt = Opt.switch $
@@ -44,13 +43,12 @@ optionsParser =
   singleInfo = Opt.progDesc "generate a page for a single work"
 
   gallery = Opt.command "gallery" $ galleryOpts `Opt.info` galleryInfo
-  galleryOpts =
-    GalleryPage <$> dirArg <*> nsfwSwitch <*> outputOpt <*> singleOpt
-  dirArg = Opt.strArgument $
-    Opt.metavar "DIR" <> Opt.help "directory to search for yaml files"
-  singleOpt = fmap not $ Opt.switch $
-    Opt.short 'S' <> Opt.long "exclude-single" <>
-    Opt.help "do not generate single pages"
+  galleryOpts = GalleryPage <$> filesArg <*> nsfwSwitchG <*> outputOpt
+  filesArg = many $ Opt.strArgument $
+    Opt.metavar "FILE..." <> Opt.help "yaml files to read"
+  nsfwSwitchG = Opt.switch $
+    Opt.short 'n' <> Opt.long "nsfw" <>
+    Opt.help "include works with only nsfw versions"
   galleryInfo = Opt.progDesc "generate a gallery page"
 
   mainInfo = Opt.progDesc "static gallery site generator" <> Opt.fullDesc