-- 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 Compiler ( compileGallery , writeJSON ) where import Control.Monad (liftM2) import Data.List (any) import System.FilePath ((</>)) import qualified System.FilePath.Glob as Glob import System.Directory (canonicalizePath) import Data.Aeson (ToJSON) import qualified Data.Aeson as JSON import Config import Input (readInputTree) import Resource (buildGalleryTree, galleryCleanupResourceDir) import Files ( FileName , FSNode(..) , readDirectory , isHidden , nodeName , filterDir , ensureParentDir ) import Processors ( itemFileProcessor, thumbnailFileProcessor , skipCached, withCached ) galleryConf :: String galleryConf = "gallery.yaml" indexFile :: String indexFile = "index.json" viewerConfFile :: String viewerConfFile = "viewer.json" itemsDir :: String itemsDir = "items" thumbnailsDir :: String thumbnailsDir = "thumbnails" writeJSON :: ToJSON a => FileName -> a -> IO () writeJSON outputPath object = do putStrLn $ "Generating:\t" ++ outputPath ensureParentDir JSON.encodeFile outputPath object galleryDirFilter :: CompilerConfig -> FilePath -> FSNode -> Bool galleryDirFilter config outputDir = (not . isHidden) &&& (not . isOutputGallery) &&& (not . matchesFile (== galleryConf)) &&& ((matchesDir $ anyPattern $ includedDirectories config) ||| (matchesFile $ anyPattern $ includedFiles config)) &&& (not . ((matchesDir $ anyPattern $ excludedDirectories config) ||| (matchesFile $ anyPattern $ excludedFiles config))) where (&&&) = liftM2 (&&) (|||) = liftM2 (||) matchesDir :: (FileName -> Bool) -> FSNode -> Bool matchesDir cond dir@Dir{} = maybe False cond $ nodeName dir matchesDir _ File{} = False matchesFile :: (FileName -> Bool) -> FSNode -> Bool matchesFile cond file@File{} = maybe False cond $ nodeName file matchesFile _ Dir{} = False anyPattern :: [String] -> FileName -> Bool anyPattern patterns filename = any (flip Glob.match filename) (map Glob.compile patterns) isOutputGallery :: FSNode -> Bool isOutputGallery Dir{canonicalPath} = canonicalPath == outputDir isOutputGallery File{} = False compileGallery :: FilePath -> FilePath -> Bool -> Bool -> IO () compileGallery inputDirPath outputDirPath rebuildAll cleanOutput = do fullConfig <- readConfig inputGalleryConf let config = compiler fullConfig inputDir <- readDirectory inputDirPath canonicalOutPath <- canonicalizePath outputDirPath let sourceFilter = galleryDirFilter config canonicalOutPath let sourceTree = filterDir sourceFilter inputDir inputTree <- readInputTree sourceTree let cache = if rebuildAll then skipCached else withCached let itemProc = itemProcessor config cache let thumbnailProc = thumbnailProcessor config cache let galleryBuilder = buildGalleryTree itemProc thumbnailProc (tagsFromDirectories config) resources <- galleryBuilder (galleryName config) inputTree if cleanOutput then galleryCleanupResourceDir resources outputDirPath else return () writeJSON outputIndex resources writeJSON outputViewerConf $ viewer fullConfig where inputGalleryConf = inputDirPath </> galleryConf outputIndex = outputDirPath </> indexFile outputViewerConf = outputDirPath </> viewerConfFile itemProcessor config cache = itemFileProcessor (pictureMaxResolution config) cache inputDirPath outputDirPath itemsDir thumbnailProcessor config cache = thumbnailFileProcessor (thumbnailMaxResolution config) cache inputDirPath outputDirPath thumbnailsDir