HpcMarkup.hs 17.8 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12
---------------------------------------------------------
-- The main program for the hpc-markup tool, part of HPC.
-- Andy Gill and Colin Runciman, June 2006
---------------------------------------------------------

module HpcMarkup (markup_plugin) where

import Trace.Hpc.Mix
import Trace.Hpc.Tix
import Trace.Hpc.Util

import HpcFlags
andy@galois.com's avatar
andy@galois.com committed
13
import HpcUtils
14

15
import System.Directory
16 17 18
import Data.List
import Data.Maybe(fromJust)
import Data.Array
19
import Data.Monoid
20
import Control.Monad
21
import qualified HpcSet as Set
22 23 24

------------------------------------------------------------------------------

Ian Lynagh's avatar
Ian Lynagh committed
25
markup_options :: FlagOptSeq
Ian Lynagh's avatar
Ian Lynagh committed
26
markup_options
27 28 29 30 31 32 33
        = excludeOpt
        . includeOpt
        . srcDirOpt
        . hpcDirOpt
        . funTotalsOpt
        . altHighlightOpt
        . destDirOpt
Ian Lynagh's avatar
Ian Lynagh committed
34 35

markup_plugin :: Plugin
36
markup_plugin = Plugin { name = "markup"
Ian Lynagh's avatar
Ian Lynagh committed
37 38 39 40 41 42 43
                       , usage = "[OPTION] .. <TIX_FILE> [<MODULE> [<MODULE> ..]]"
                       , options = markup_options
                       , summary = "Markup Haskell source with program coverage"
                       , implementation = markup_main
                       , init_flags = default_flags
                       , final_flags = default_final_flags
                       }
44 45 46 47 48

------------------------------------------------------------------------------

markup_main :: Flags -> [String] -> IO ()
markup_main flags (prog:modNames) = do
Ian Lynagh's avatar
Ian Lynagh committed
49 50 51 52
  let hpcflags1 = flags
                { includeMods = Set.fromList modNames
                                   `Set.union`
                                includeMods flags }
53
  let Flags
54
       { funTotals = theFunTotals
55 56 57 58 59 60
       , altHighlight = invertOutput
       , destDir = dest_dir
       }  = hpcflags1

  mtix <- readTix (getTixFileName prog)
  Tix tixs <- case mtix of
61
    Nothing -> hpcError markup_plugin $ "unable to find tix file for: " ++ prog
62 63 64
    Just a -> return a

  mods <-
65
     sequence [ genHtmlFromMod dest_dir hpcflags1 tix theFunTotals invertOutput
Ian Lynagh's avatar
Ian Lynagh committed
66 67 68
              | tix <- tixs
              , allowModule hpcflags1 (tixModuleName tix)
              ]
69 70 71 72 73 74

  let index_name = "hpc_index"
      index_fun  = "hpc_index_fun"
      index_alt  = "hpc_index_alt"
      index_exp  = "hpc_index_exp"

Ian Lynagh's avatar
Ian Lynagh committed
75
  let writeSummary filename cmp = do
76
        let mods' = sortBy cmp mods
77

Ian Lynagh's avatar
Ian Lynagh committed
78
        putStrLn $ "Writing: " ++ (filename ++ ".html")
79

Ian Lynagh's avatar
Ian Lynagh committed
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
        writeFileUsing (dest_dir ++ "/" ++ filename ++ ".html") $
            "<html>" ++
            "<style type=\"text/css\">" ++
            "table.bar { background-color: #f25913; }\n" ++
            "td.bar { background-color: #60de51;  }\n" ++
            "td.invbar { background-color: #f25913;  }\n" ++
            "table.dashboard { border-collapse: collapse  ; border: solid 1px black }\n" ++
            ".dashboard td { border: solid 1px black }\n" ++
            ".dashboard th { border: solid 1px black }\n" ++
            "</style>\n" ++
            "<table class=\"dashboard\" width=\"100%\" border=1>\n" ++
            "<tr>" ++
            "<th rowspan=2><a href=\"" ++ index_name ++ ".html\">module</a></th>" ++
            "<th colspan=3><a href=\"" ++ index_fun ++ ".html\">Top Level Definitions</a></th>" ++
            "<th colspan=3><a href=\"" ++ index_alt ++ ".html\">Alternatives</a></th>" ++
            "<th colspan=3><a href=\"" ++ index_exp ++ ".html\">Expressions</a></th>" ++
            "</tr>" ++
            "<tr>" ++
            "<th>%</th>" ++
            "<th colspan=2>covered / total</th>" ++
            "<th>%</th>" ++
            "<th colspan=2>covered / total</th>" ++
            "<th>%</th>" ++
            "<th colspan=2>covered / total</th>" ++
            "</tr>" ++
            concat [ showModuleSummary (modName,fileName,modSummary)
                   | (modName,fileName,modSummary) <- mods'
                   ] ++
            "<tr></tr>" ++
            showTotalSummary (mconcat
                                 [ modSummary
                                 | (_,_,modSummary) <- mods'
                                 ])
                   ++ "</table></html>\n"
114 115

  writeSummary index_name  $ \ (n1,_,_) (n2,_,_) -> compare n1 n2
Ian Lynagh's avatar
Ian Lynagh committed
116 117

  writeSummary index_fun $ \ (_,_,s1) (_,_,s2) ->
118
        compare (percent (topFunTicked s2) (topFunTotal s2))
Ian Lynagh's avatar
Ian Lynagh committed
119
                (percent (topFunTicked s1) (topFunTotal s1))
120

Ian Lynagh's avatar
Ian Lynagh committed
121
  writeSummary index_alt $ \ (_,_,s1) (_,_,s2) ->
122
        compare (percent (altTicked s2) (altTotal s2))
Ian Lynagh's avatar
Ian Lynagh committed
123
                (percent (altTicked s1) (altTotal s1))
124

Ian Lynagh's avatar
Ian Lynagh committed
125
  writeSummary index_exp $ \ (_,_,s1) (_,_,s2) ->
126
        compare (percent (expTicked s2) (expTotal s2))
Ian Lynagh's avatar
Ian Lynagh committed
127
                (percent (expTicked s1) (expTotal s1))
128 129


Ian Lynagh's avatar
Ian Lynagh committed
130
markup_main _ []
Ian Lynagh's avatar
Ian Lynagh committed
131
    = hpcError markup_plugin $ "no .tix file or executable name specified"
132 133 134

genHtmlFromMod
  :: String
135
  -> Flags
136 137 138 139
  -> TixModule
  -> Bool
  -> Bool
  -> IO (String, [Char], ModuleSummary)
140 141
genHtmlFromMod dest_dir flags tix theFunTotals invertOutput = do
  let theHsPath = srcDirs flags
Ian Lynagh's avatar
Ian Lynagh committed
142
  let modName0 = tixModuleName tix
143

Ian Lynagh's avatar
Ian Lynagh committed
144
  (Mix origFile _ _ tabStop mix') <- readMixWithFlags flags (Right tix)
145 146 147

  let arr_tix :: Array Int Integer
      arr_tix = listArray (0,length (tixModuleTixs tix) - 1)
Ian Lynagh's avatar
Ian Lynagh committed
148
              $ tixModuleTixs tix
149 150

  let tickedWith :: Int -> Integer
Ian Lynagh's avatar
Ian Lynagh committed
151
      tickedWith n = arr_tix ! n
152 153 154 155

      isTicked n = tickedWith n /= 0

  let info = [ (pos,theMarkup)
Ian Lynagh's avatar
Ian Lynagh committed
156 157 158 159 160 161
             | (gid,(pos,boxLabel)) <- zip [0 ..] mix'
             , let binBox = case (isTicked gid,isTicked (gid+1)) of
                               (False,False) -> []
                               (True,False)  -> [TickedOnlyTrue]
                               (False,True)  -> [TickedOnlyFalse]
                               (True,True)   -> []
162
             , let tickBox = if isTicked gid
Ian Lynagh's avatar
Ian Lynagh committed
163 164 165 166 167 168 169 170 171
                             then [IsTicked]
                             else [NotTicked]
             , theMarkup <- case boxLabel of
                                  ExpBox {} -> tickBox
                                  TopLevelBox {}
                                            -> TopLevelDecl theFunTotals (tickedWith gid) : tickBox
                                  LocalBox {}   -> tickBox
                                  BinBox _ True -> binBox
                                  _             -> []
172 173 174
             ]


Ian Lynagh's avatar
Ian Lynagh committed
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
  let modSummary = foldr (.) id
             [ \ st ->
               case boxLabel of
                 ExpBox False
                        -> st { expTicked = ticked (expTicked st)
                              , expTotal = succ (expTotal st)
                              }
                 ExpBox True
                        -> st { expTicked = ticked (expTicked st)
                              , expTotal = succ (expTotal st)
                              , altTicked = ticked (altTicked st)
                              , altTotal = succ (altTotal st)
                              }
                 TopLevelBox _ ->
                           st { topFunTicked = ticked (topFunTicked st)
                              , topFunTotal = succ (topFunTotal st)
                              }
192
                 _ -> st
Ian Lynagh's avatar
Ian Lynagh committed
193
             | (gid,(_pos,boxLabel)) <- zip [0 ..] mix'
194
             , let ticked = if isTicked gid
Ian Lynagh's avatar
Ian Lynagh committed
195 196
                            then succ
                            else id
197
             ] $ mempty
198 199

  -- add prefix to modName argument
andy@galois.com's avatar
andy@galois.com committed
200
  content <- readFileFromPath (hpcError markup_plugin) origFile theHsPath
201 202 203

  let content' = markup tabStop info content
  let show' = reverse . take 5 . (++ "       ") . reverse . show
Ian Lynagh's avatar
Ian Lynagh committed
204
  let addLine n xs = "<span class=\"lineno\">" ++ show' n ++ " </span>" ++ xs
205 206 207
  let addLines = unlines . map (uncurry addLine) . zip [1 :: Int ..] . lines
  let fileName = modName0 ++ ".hs.html"
  putStrLn $ "Writing: " ++ fileName
208
  writeFileUsing (dest_dir ++ "/" ++ fileName) $
Ian Lynagh's avatar
Ian Lynagh committed
209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
            unlines [ "<html><style type=\"text/css\">",
                     "span.lineno { color: white; background: #aaaaaa; border-right: solid white 12px }",
                     if invertOutput
                     then "span.nottickedoff { color: #404040; background: white; font-style: oblique }"
                     else "span.nottickedoff { background: " ++ yellow ++ "}",
                     if invertOutput
                     then "span.istickedoff { color: black; background: #d0c0ff; font-style: normal; }"
                     else "span.istickedoff { background: white }",
                     "span.tickonlyfalse { margin: -1px; border: 1px solid " ++ red ++ "; background: " ++ red ++ " }",
                     "span.tickonlytrue  { margin: -1px; border: 1px solid " ++ green ++ "; background: " ++ green ++ " }",
                     "span.funcount { font-size: small; color: orange; z-index: 2; position: absolute; right: 20 }",
                     if invertOutput
                     then "span.decl { font-weight: bold; background: #d0c0ff }"
                     else "span.decl { font-weight: bold }",
                     "span.spaces    { background: white }",
                     "</style>",
                     "<pre>"] ++ addLines content' ++ "\n</pre>\n</html>\n";
226

Ian Lynagh's avatar
Ian Lynagh committed
227
  modSummary `seq` return (modName0,fileName,modSummary)
228 229

data Loc = Loc !Int !Int
Ian Lynagh's avatar
Ian Lynagh committed
230
         deriving (Eq,Ord,Show)
231

Ian Lynagh's avatar
Ian Lynagh committed
232 233 234 235
data Markup
     = NotTicked
     | TickedOnlyTrue
     | TickedOnlyFalse
236
     | IsTicked
Ian Lynagh's avatar
Ian Lynagh committed
237 238 239
     | TopLevelDecl
           Bool     -- display entry totals
           Integer
240 241
     deriving (Eq,Show)

Ian Lynagh's avatar
Ian Lynagh committed
242 243 244 245 246
markup    :: Int                -- ^tabStop
          -> [(HpcPos,Markup)]  -- random list of tick location pairs
          -> String             -- text to mark up
          -> String
markup tabStop mix str = addMarkup tabStop str (Loc 1 1) [] sortedTickLocs
247 248
  where
    tickLocs = [ (Loc ln1 c1,Loc ln2 c2,mark)
Ian Lynagh's avatar
Ian Lynagh committed
249 250 251
               | (pos,mark) <- mix
               , let (ln1,c1,ln2,c2) = fromHpcPos pos
               ]
252 253 254
    sortedTickLocs = sortBy (\(locA1,locZ1,_) (locA2,locZ2,_) ->
                              (locA1,locZ2) `compare` (locA2,locZ1)) tickLocs

Ian Lynagh's avatar
Ian Lynagh committed
255 256 257 258 259 260
addMarkup :: Int                -- tabStop
          -> String             -- text to mark up
          -> Loc                -- current location
          -> [(Loc,Markup)]     -- stack of open ticks, with closing location
          -> [(Loc,Loc,Markup)] -- sorted list of tick location pairs
          -> String
261 262

-- check the pre-condition.
Ian Lynagh's avatar
Ian Lynagh committed
263
--addMarkup tabStop cs loc os ticks
264 265
--   | not (isSorted (map fst os)) = error $ "addMarkup: bad closing ordering: " ++ show os

Ian Lynagh's avatar
Ian Lynagh committed
266
--addMarkup tabStop cs loc os@(_:_) ticks
267 268 269 270
--   | trace (show (loc,os,take 10 ticks)) False = undefined

-- close all open ticks, if we have reached the end
addMarkup _ [] _loc os [] =
Ian Lynagh's avatar
Ian Lynagh committed
271
  concatMap (const closeTick) os
272 273 274 275 276 277 278 279
addMarkup tabStop cs loc ((o,_):os) ticks | loc > o =
  closeTick ++ addMarkup tabStop cs loc os ticks

--addMarkup tabStop cs loc os ((t1,t2,tik@(TopLevelDecl {})):ticks) | loc == t1 =
--   openTick tik ++ closeTick ++ addMarkup tabStop cs loc os ticks

addMarkup tabStop cs loc os ((t1,t2,tik0):ticks) | loc == t1 =
  case os of
Ian Lynagh's avatar
Ian Lynagh committed
280 281
  ((_,tik'):_)
    | not (allowNesting tik0 tik')
282 283
    -> addMarkup tabStop cs loc os ticks -- already marked or bool within marked bool
  _ -> openTick tik0 ++ addMarkup tabStop cs loc (addTo (t2,tik0) os) ticks
284
 where
285 286

  addTo (t,tik) []             = [(t,tik)]
Ian Lynagh's avatar
Ian Lynagh committed
287
  addTo (t,tik) ((t',tik'):xs) | t <= t'   = (t,tik):(t',tik'):xs
Ian Lynagh's avatar
Ian Lynagh committed
288
                               | otherwise = (t',tik):(t',tik'):xs
289 290

addMarkup tabStop0 cs loc os ((t1,_t2,_tik):ticks) | loc > t1 =
Ian Lynagh's avatar
Ian Lynagh committed
291 292
          -- throw away this tick, because it is from a previous place ??
          addMarkup tabStop0 cs loc os ticks
293

Ian Lynagh's avatar
Ian Lynagh committed
294 295 296
addMarkup tabStop0 ('\n':cs) loc@(Loc ln col) os@((Loc ln2 col2,_):_) ticks
          | ln == ln2 && col < col2
          = addMarkup tabStop0 (' ':'\n':cs) loc os ticks
297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316
addMarkup tabStop0 (c0:cs) loc@(Loc _ p) os ticks =
  if c0=='\n' && os/=[] then
    concatMap (const closeTick) (downToTopLevel os) ++
    c0 : "<span class=\"spaces\">" ++ expand 1 w ++ "</span>" ++
    concatMap (openTick.snd) (reverse (downToTopLevel os)) ++
    addMarkup tabStop0 cs' loc' os ticks
  else if c0=='\t' then
    expand p "\t" ++ addMarkup tabStop0 cs (incBy c0 loc) os ticks
  else
    escape c0 ++ addMarkup tabStop0 cs (incBy c0 loc) os ticks
  where
  (w,cs') = span (`elem` " \t") cs
  loc' = foldl (flip incBy) loc (c0:w)
  escape '>' = "&gt;"
  escape '<' = "&lt;"
  escape '"' = "&quot;"
  escape '&' = "&amp;"
  escape c  = [c]

  expand :: Int -> String -> String
Ian Lynagh's avatar
Ian Lynagh committed
317
  expand _ ""       = ""
318 319 320 321 322
  expand c ('\t':s) = replicate (c' - c) ' ' ++ expand c' s
    where
    c' = tabStopAfter 8 c
  expand c (' ':s)  = ' ' : expand (c+1) s
  expand _ _        = error "bad character in string for expansion"
Ian Lynagh's avatar
Ian Lynagh committed
323

324 325 326 327
  incBy :: Char -> Loc -> Loc
  incBy '\n' (Loc ln _c) = Loc (succ ln) 1
  incBy '\t' (Loc ln c) = Loc ln (tabStopAfter tabStop0 c)
  incBy _    (Loc ln c) = Loc ln (succ c)
Ian Lynagh's avatar
Ian Lynagh committed
328

329 330 331
  tabStopAfter :: Int -> Int -> Int
  tabStopAfter tabStop c = fromJust (find (>c) [1,(tabStop + 1)..])

Ian Lynagh's avatar
Ian Lynagh committed
332

333 334 335
addMarkup tabStop cs loc os ticks = "ERROR: " ++ show (take 10 cs,tabStop,loc,take 10 os,take 10 ticks)

openTick :: Markup -> String
Ian Lynagh's avatar
Ian Lynagh committed
336 337 338 339
openTick NotTicked       = "<span class=\"nottickedoff\">"
openTick IsTicked        = "<span class=\"istickedoff\">"
openTick TickedOnlyTrue  = "<span class=\"tickonlytrue\">"
openTick TickedOnlyFalse = "<span class=\"tickonlyfalse\">"
340
openTick (TopLevelDecl False _) = openTopDecl
Ian Lynagh's avatar
Ian Lynagh committed
341 342 343 344 345 346 347 348
openTick (TopLevelDecl True 0)
         = "<span class=\"funcount\">-- never entered</span>" ++
           openTopDecl
openTick (TopLevelDecl True 1)
         = "<span class=\"funcount\">-- entered once</span>" ++
           openTopDecl
openTick (TopLevelDecl True n0)
         = "<span class=\"funcount\">-- entered " ++ showBigNum n0 ++ " times</span>" ++ openTopDecl
349
  where showBigNum n | n <= 9999 = show n
Ian Lynagh's avatar
Ian Lynagh committed
350
                     | otherwise = showBigNum' (n `div` 1000) ++ "," ++ showWith (n `mod` 1000)
351
        showBigNum' n | n <= 999 = show n
Ian Lynagh's avatar
Ian Lynagh committed
352
                      | otherwise = showBigNum' (n `div` 1000) ++ "," ++ showWith (n `mod` 1000)
353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368
        showWith n = take 3 $ reverse $ ("000" ++) $ reverse $ show n

closeTick :: String
closeTick = "</span>"

openTopDecl :: String
openTopDecl = "<span class=\"decl\">"

downToTopLevel :: [(Loc,Markup)] -> [(Loc,Markup)]
downToTopLevel ((_,TopLevelDecl {}):_) = []
downToTopLevel (o : os)               = o : downToTopLevel os
downToTopLevel []                     = []


-- build in logic for nesting bin boxes

Ian Lynagh's avatar
Ian Lynagh committed
369 370 371 372
allowNesting :: Markup  -- innermost
            -> Markup   -- outermost
            -> Bool
allowNesting n m               | n == m = False -- no need to double nest
373 374
allowNesting IsTicked TickedOnlyFalse   = False
allowNesting IsTicked TickedOnlyTrue    = False
Ian Lynagh's avatar
Ian Lynagh committed
375
allowNesting _ _                        = True
376 377 378

------------------------------------------------------------------------------

Ian Lynagh's avatar
Ian Lynagh committed
379
data ModuleSummary = ModuleSummary
380 381 382 383 384 385 386 387 388 389 390
     { expTicked :: !Int
     , expTotal  :: !Int
     , topFunTicked :: !Int
     , topFunTotal  :: !Int
     , altTicked :: !Int
     , altTotal  :: !Int
     }
     deriving (Show)


showModuleSummary :: (String, String, ModuleSummary) -> String
Ian Lynagh's avatar
Ian Lynagh committed
391
showModuleSummary (modName,fileName,modSummary) =
Ian Lynagh's avatar
Ian Lynagh committed
392 393 394
  "<tr>\n" ++
  "<td>&nbsp;&nbsp;<tt>module <a href=\"" ++ fileName ++ "\">"
                              ++ modName ++ "</a></tt></td>\n" ++
Ian Lynagh's avatar
Ian Lynagh committed
395 396 397
   showSummary (topFunTicked modSummary) (topFunTotal modSummary) ++
   showSummary (altTicked modSummary) (altTotal modSummary) ++
   showSummary (expTicked modSummary) (expTotal modSummary) ++
398 399 400
  "</tr>\n"

showTotalSummary :: ModuleSummary -> String
Ian Lynagh's avatar
Ian Lynagh committed
401
showTotalSummary modSummary =
Ian Lynagh's avatar
Ian Lynagh committed
402
  "<tr style=\"background: #e0e0e0\">\n" ++
403
  "<th align=left>&nbsp;&nbsp;Program Coverage Total</tt></th>\n" ++
Ian Lynagh's avatar
Ian Lynagh committed
404 405 406
   showSummary (topFunTicked modSummary) (topFunTotal modSummary) ++
   showSummary (altTicked modSummary) (altTotal modSummary) ++
   showSummary (expTicked modSummary) (expTotal modSummary) ++
407 408 409
  "</tr>\n"

showSummary :: (Integral t) => t -> t -> String
Ian Lynagh's avatar
Ian Lynagh committed
410 411 412 413 414 415 416 417
showSummary ticked total =
                "<td align=\"right\">" ++ showP (percent ticked total) ++ "</td>" ++
                "<td>" ++ show ticked ++ "/" ++ show total ++ "</td>" ++
                "<td width=100>" ++
                    (case percent ticked total of
                       Nothing -> "&nbsp;"
                       Just w -> bar w "bar"
                     )  ++ "</td>"
418 419 420
     where
        showP Nothing = "-&nbsp;"
        showP (Just x) = show x ++ "%"
Ian Lynagh's avatar
Ian Lynagh committed
421
        bar 0 _     = bar 100 "invbar"
422
        bar w inner = "<table cellpadding=0 cellspacing=0 width=\"100\" class=\"bar\">" ++
Ian Lynagh's avatar
Ian Lynagh committed
423 424 425
                         "<tr><td><table cellpadding=0 cellspacing=0 width=\"" ++ show w ++ "%\">" ++
                              "<tr><td height=12 class=" ++ show inner ++ "></td></tr>" ++
                              "</table></td></tr></table>"
426 427 428 429 430

percent :: (Integral a) => a -> a -> Maybe a
percent ticked total = if total == 0 then Nothing else Just (ticked * 100 `div` total)


431 432
instance Monoid ModuleSummary where
  mempty = ModuleSummary
Ian Lynagh's avatar
Ian Lynagh committed
433 434
                  { expTicked = 0
                  , expTotal  = 0
435 436 437 438 439 440
                  , topFunTicked = 0
                  , topFunTotal  = 0
                  , altTicked = 0
                  , altTotal  = 0
                  }
  mappend (ModuleSummary eTik1 eTot1 tTik1 tTot1 aTik1 aTot1)
Ian Lynagh's avatar
Ian Lynagh committed
441
          (ModuleSummary eTik2 eTot2 tTik2 tTot2 aTik2 aTot2)
442 443
     = ModuleSummary (eTik1 + eTik2) (eTot1 + eTot2) (tTik1 + tTik2) (tTot1 + tTot2) (aTik1 + aTik2) (aTot1 + aTot2)

444

445 446 447 448 449 450 451 452 453 454 455
------------------------------------------------------------------------------

writeFileUsing :: String -> String -> IO ()
writeFileUsing filename text = do
  let dest_dir = reverse . dropWhile (\ x -> x /= '/') . reverse $ filename

-- We need to check for the dest_dir each time, because we use sub-dirs for
-- packages, and a single .tix file might contain information about
-- many package.

  -- create the dest_dir if needed
456 457
  when (not (null dest_dir)) $
    createDirectoryIfMissing True dest_dir
458 459 460

  writeFile filename text

461 462 463 464 465 466 467 468
------------------------------------------------------------------------------
-- global color pallete

red,green,yellow :: String
red    = "#f20913"
green  = "#60de51"
yellow = "yellow"