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-- ldgallery - A static generator which turns a collection of tagged
-- pictures into a searchable web gallery.
--
-- Copyright (C) 2019-2020 Pacien TRAN-GIRARD
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Affero General Public License for more details.
--
-- You should have received a copy of the GNU Affero General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
module Main where
import GHC.Generics (Generic)
import Paths_ldgallery_compiler (version, getDataFileName)
import Control.Monad (when)
import Data.Version (showVersion)
import Data.Aeson (ToJSON)
import System.FilePath ((</>))
import System.Directory (canonicalizePath, listDirectory)
import System.Console.CmdArgs
import Compiler
import Files (readDirectory, copyTo, remove)
data ViewerConfig = ViewerConfig
{ galleryRoot :: String
} deriving (Generic, Show, ToJSON)
data Options = Options
{ inputDir :: FilePath
, outputDir :: FilePath
, galleryConfig :: FilePath
, rebuilAll :: Bool
, cleanOutput :: Bool
, withViewer :: Bool
} deriving (Show, Data, Typeable)
options :: Options
options = Options
{ inputDir = "./"
&= typDir
&= name "i"
&= name "input-dir"
&= explicit
&= help "Gallery source directory (default=./)"
, outputDir = "./out"
&= typDir
&= name "o"
&= name "output-dir"
&= explicit
&= help "Generated gallery output path (default=./out)"
, galleryConfig = ""
&= typFile
&= name "g"
&= name "gallery-config"
&= explicit
&= help "Gallery configuration file (default=$input-dir/gallery.yaml)"
, rebuilAll = False
&= name "r"
&= name "rebuild-all"
&= explicit
&= help "Invalidate cache and recompile everything"
, cleanOutput = False
&= name "c"
&= name "clean-output"
&= explicit
&= help "Remove unnecessary files from the output directory"
, withViewer = False
&= name "w"
&= name "with-viewer"
&= explicit
&= help "Include the static web viewer in the output"
}
&= summary ("ldgallery v" ++ (showVersion version) ++ " - a static web gallery generator with tags")
&= program "ldgallery"
&= help "Compile a gallery"
&= helpArg [explicit, name "h", name "help"]
&= versionArg [explicit, name "version"]
main :: IO ()
main =
do
opts <- cmdArgs options
buildGallery opts
when (withViewer opts) $ do
when (cleanOutput opts) $ cleanViewerDir (outputDir opts)
copyViewer (outputDir opts)
writeViewerConfig (outputDir opts </> "config.json")
where
gallerySubdir :: String
gallerySubdir = "gallery"
buildGallery :: Options -> IO ()
buildGallery opts =
checkDistinctPaths (inputDir opts) (outputDir opts)
>> compileGallery
(galleryConfig opts)
(inputDir opts)
(galleryOutputDir opts)
[outputDir opts]
(rebuilAll opts)
(cleanOutput opts)
where
checkDistinctPaths a b = do
canonicalA <- canonicalizePath a
canonicalB <- canonicalizePath b
when (canonicalA == canonicalB) $ error "Input and output paths refer to the same location."
galleryOutputDir :: Options -> FilePath
galleryOutputDir opts =
if withViewer opts then outputBase </> gallerySubdir else outputBase
where outputBase = outputDir opts
cleanViewerDir :: FilePath -> IO ()
cleanViewerDir target =
listDirectory target
>>= return . filter (/= gallerySubdir)
>>= mapM_ remove . map (target </>)
copyViewer :: FilePath -> IO ()
copyViewer target =
putStrLn "Copying viewer webapp"
>> getDataFileName "viewer"
>>= readDirectory
>>= copyTo target
writeViewerConfig :: FilePath -> IO ()
writeViewerConfig fileName = writeJSON fileName $ ViewerConfig (gallerySubdir ++ "/")
|