2020-07-09 00:20:09 -04:00
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module SinglePage (make) where
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2020-07-07 23:28:09 -04:00
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2020-09-25 17:08:44 -04:00
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import Date
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import Info
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2020-07-15 15:31:46 -04:00
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import BuilderQQ
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2020-07-16 10:07:28 -04:00
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import Records ()
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2020-07-12 22:01:31 -04:00
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2020-07-11 23:40:14 -04:00
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import Control.Exception
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2020-09-19 01:51:52 -04:00
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import qualified Data.Map.Strict as Map
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import Data.Maybe (fromMaybe)
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import qualified Data.Text as Strict
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import qualified Data.Text.Lazy as Lazy
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import System.FilePath (joinPath, splitPath, (</>))
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import qualified System.Process as Proc
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import Text.Read (readMaybe)
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2020-07-12 23:02:16 -04:00
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-- | e.g. only nsfw images are present for a non-nsfw page
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2020-07-11 23:40:14 -04:00
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data NoEligibleImages = NoEligibleImages {title :: !Strict.Text}
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deriving stock Eq deriving anyclass Exception
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instance Show NoEligibleImages where
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show (NoEligibleImages {title}) =
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Strict.unpack title <> ": no images selected\n" <>
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" (probably a nsfw-only work without --nsfw set)"
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2020-08-11 14:29:54 -04:00
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make :: Text -- ^ website root
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-> FilePath -- ^ gallery prefix
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-> Bool -- ^ nsfw?
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-> FilePath -- ^ data dir
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-> FilePath -- ^ subdir of datadir containing this @info.yaml@
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-> Info -> IO Lazy.Text
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make root prefix nsfw dataDir dir info =
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toLazyText <$> make' root prefix nsfw dataDir dir info
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make' :: Text -> FilePath -> Bool -> FilePath -> FilePath -> Info -> IO Builder
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make' root prefix nsfw dataDir dir
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info@(Info {date, title, artist, bg, updates}) = do
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images <- withSizes (dataDir </> dir) $ imagesFor nsfw info
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let undir = joinPath (replicate (length (splitPath dir)) "..")
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let artistTag = ifJust artist makeArtist
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let formattedDate = formatLong date
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let buttonBar = makeButtonBar title images
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let (image0@(Image {path = path0, download = download0'}),
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Size {width = width0, height = height0})
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= head images
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let download0 = fromMaybe path0 download0'
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let path0' = pageFile path0
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let descSection = makeDesc $ descFor nsfw info
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let tagsList = makeTags undir $ tagsFor nsfw info
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let linksList = extLinks $ linksFor nsfw info
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let updatesList = makeUpdates $ Map.toList updates
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let makePrefetch (Image {path}) = [b|<link rel=prefetch href=$path>|]
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let prefetches = map (makePrefetch . #first) $ tail images
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let makeWarning w = [b|@4
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<figcaption id=cw aria-role=button tabindex=0>
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<span id=cw-text>$w</span>
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</figcaption>
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let warning' = ifJust (#warning image0) makeWarning
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let warningT = makeWarning [b|.|]
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let bgStyle = ifJust bg \col -> [b|@0
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<style> #mainfig { background: $col; } </style>
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let url = [b|$root/$prefix/$dir|]
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let desc = case artist of
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Just (Artist {name}) -> [b|by $name|]
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Nothing -> "by niss"
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let thumb = getThumb "" info
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let updateDate = ifJust (Map.lookupMax updates) \(formatLong -> u, _) ->
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[b|<br> <span class=updated>updated $u</span>|]
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pure [b|@0
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<!DOCTYPE html>
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<html lang=en>
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<meta charset=utf-8>
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<meta name=viewport content="width=1200,viewport-fit=cover">
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<link rel=stylesheet href=/style/shiny/single.css>
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<link rel=icon href=/style/niss.svg>
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<meta property=og:type content=og:website>
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<meta property=og:title content="$title">
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<meta property=og:site_name content="$title">
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<meta property=og:description content="$desc">
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<meta property=og:image content="$url/$thumb">
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<meta property=og:url content="$url">
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<meta name=twitter:site content=@2_gecs>
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<meta name=twitter:card content=summary>
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<script src=/script/single.js></script>
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$bgStyle
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$0.prefetches
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<title>$title</title>
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<header>
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<h1>$title</h1>
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$artistTag
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<h2 id=date class="right corner">
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$formattedDate $updateDate
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</h2>
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</header>
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$buttonBar
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<main>
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<figure id=mainfig data-width=$width0 data-height=$height0>
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$warning'
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<a id=mainlink href="$download0" title="download full version">
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<img id=mainimg src="$path0'" alt="">
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</a>
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</figure>
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<div id=info>
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$descSection
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$tagsList
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$linksList
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$updatesList
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</div>
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</main>
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<footer>
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<a href=$undir>back to gallery</a>
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</footer>
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<template id=cw-template>
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$warningT
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</template>
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makeArtist :: Artist -> Builder
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makeArtist (Artist {name, url}) =
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[b|<h2 id=artist class="left corner">by $artistLink</h2>|]
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where
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artistLink = case url of
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Just u -> [b|<a href="$u">$name</a>|]
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Nothing -> [b|$name|]
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makeDesc :: Maybe Strict.Text -> Builder
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makeDesc mdesc = ifJust mdesc \desc -> [b|@4
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<section id=desc class=info-section>
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<h2>about</h2>
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<div>
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$8.desc
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</div>
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</section>
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makeButtonBar :: Strict.Text -> [(Image, Size)] -> Builder
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makeButtonBar title images =
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case length images of
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0 -> throw $ NoEligibleImages title
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1 -> ""
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_ -> [b|@0
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<nav id=alts aria-label="alternate versions">
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<ul class="buttonbar bb-choice">
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$4.alts
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</ul>
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</nav>
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where alts = map (\(i, (im, sz)) -> altButton i im sz) $ zip [0..] images
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altButton :: Int -> Image -> Size -> Builder
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altButton i (Image {label, path, nsfw, warning}) (Size {width, height}) = [b|@4
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<li$nsfwClass>
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<input type=radio$checked name=variant id="$idLabel" value="$path'"
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data-link="$path"$warning'
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data-width=$width data-height=$height>
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<label for="$idLabel"$nsfwLabelClass>$label</label>
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where
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nsfwClass = if nsfw then [b| class=nsfw|] else ""
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nsfwLabelClass = if nsfw then [b| class=nsfw-label|] else ""
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checked = if i == 0 then [b| checked|] else ""
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idLabel = escId label
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path' = pageFile path
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warning' = ifJust warning \(escAttr -> w) -> [b| data-warning="$w"|]
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makeTags :: FilePath -> [Strict.Text] -> Builder
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makeTags undir tags =
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if null tags then "" else [b|@4
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<nav id=tags class=info-section>
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<h2>tags</h2>
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<ul class="buttonbar bb-links">
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$8.tagList
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</ul>
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</nav>
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where
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tagList = map makeTag tags
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makeTag tag = [b|<li><a href="$undir#require_$tag'">$tag</a>|]
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where tag' = escId tag
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extLinks :: [Link] -> Builder
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extLinks links =
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if null links then "" else [b|@4
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<nav id=links class=info-section>
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<h2>links</h2>
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<ul class="buttonbar bb-links">
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$8.linkList
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</ul>
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</nav>
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where linkList = map extLink links
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extLink :: Link -> Builder
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extLink (Link {title, url}) = [b|@8
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<li>
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<a href="$url">
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$title
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</a>
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makeUpdates :: [(Date, Text)] -> Builder
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makeUpdates ups =
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if null ups then "" else [b|@4
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<section id=updates class=info-section>
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<h2>updates</h2>
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<dl>
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$8.updateList
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</dl>
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</section>
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where updateList = map (uncurry makeUpdate) ups
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makeUpdate :: Date -> Text -> Builder
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makeUpdate date txt = [b|@8
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<dt>$date'
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<dd>$txt
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where date' = formatSlash date
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data Size = Size {width, height :: !Int} deriving (Eq, Show)
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imageSize :: FilePath -> FilePath -> IO Size
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imageSize dir img = do
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-- "[0]" to get the first frame of an animation
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-- otherwise it prints a pair for each frame
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let filename = (dir </> img) ++ "[0]"
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output <- Proc.readProcess "identify" ["-format", "(%W,%H)", filename] ""
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case readMaybe output of
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Just (width, height) -> pure $ Size {width, height}
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Nothing -> fail $ "couldn't understand identify output:\n" ++ output
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withSizes :: FilePath -> [Image] -> IO [(Image, Size)]
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withSizes dir = traverse \img -> do
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size <- imageSize dir $ #path img
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pure (img, size)
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