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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 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 excludedCanonicalDirs =
(not . isHidden)
&&& (not . isExcludedDir)
&&& (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)
isExcludedDir :: FSNode -> Bool
isExcludedDir Dir{canonicalPath} = any (canonicalPath ==) excludedCanonicalDirs
isExcludedDir File{} = False
compileGallery :: FilePath -> FilePath -> [FilePath] -> Bool -> Bool -> IO ()
compileGallery inputDirPath outputDirPath excludedDirs rebuildAll cleanOutput =
do
fullConfig <- readConfig inputGalleryConf
let config = compiler fullConfig
inputDir <- readDirectory inputDirPath
excludedCanonicalDirs <- mapM canonicalizePath excludedDirs
let sourceFilter = galleryDirFilter config excludedCanonicalDirs
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
|