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-- ldgallery - A static generator which turns a collection of tagged
-- pictures into a searchable web gallery.
--
-- Copyright (C) 2019 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/>.
{-# LANGUAGE
DuplicateRecordFields
, DeriveGeneric
, DeriveAnyClass
#-}
module Compiler
( compileGallery
) where
import Control.Monad
import Data.Function ((&))
import Data.Ord (comparing)
import Data.List (sortBy, length)
import System.Directory (createDirectoryIfMissing, removePathForcibly)
import System.FilePath (dropFileName, (</>))
import Data.Aeson (ToJSON)
import qualified Data.Aeson as JSON
import Config
import Files (FileName, readDirectory, localPath, isHidden, nodeName, filterDir, flattenDir, root, (/>), ensureParentDir)
import Input (decodeYamlFile, readInputTree)
import Resource (ResourceTree, buildResourceTree, outputDiff)
import Gallery (buildGalleryTree)
import Processors
itemsDir :: String
itemsDir = "items"
thumbnailsDir :: String
thumbnailsDir = "thumbnails"
compileGallery :: FilePath -> FilePath -> IO ()
compileGallery inputDirPath outputDirPath =
do
config <- readConfig (inputDirPath </> "gallery.yaml")
inputDir <- readDirectory inputDirPath
let isGalleryFile = \n -> nodeName n == "gallery.yaml"
let galleryTree = filterDir (liftM2 (&&) (not . isGalleryFile) (not . isHidden)) inputDir
inputTree <- readInputTree galleryTree
let dirProc = dirFileProcessor inputDirPath outputDirPath itemsDir
let itemProc = itemFileProcessor Nothing skipCached inputDirPath outputDirPath itemsDir
let thumbnailProc = thumbnailFileProcessor (Resolution 150 50) skipCached inputDirPath outputDirPath thumbnailsDir
resourceTree <- buildResourceTree dirProc itemProc thumbnailProc inputTree
putStrLn "\nRESOURCE TREE"
putStrLn (show resourceTree)
cleanup resourceTree outputDirPath
buildGalleryTree resourceTree
& writeJSON (outputDirPath </> "index.json")
viewer config
& writeJSON (outputDirPath </> "viewer.json")
where
cleanup :: ResourceTree -> FileName -> IO ()
cleanup resourceTree outputDir =
readDirectory outputDir
>>= return . outputDiff resourceTree . root
>>= return . sortBy (flip $ comparing length) -- nested files before dirs
>>= return . map (localPath . (/>) outputDir)
>>= mapM_ remove
remove :: FileName -> IO ()
remove path =
do
putStrLn $ "Removing: " ++ path
removePathForcibly path
writeJSON :: ToJSON a => FileName -> a -> IO ()
writeJSON outputPath object =
do
putStrLn $ "Generating: " ++ outputPath
ensureParentDir JSON.encodeFile outputPath object
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