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| author | Francesco Occhipinti <focchi.pinti@gmail.com> | 2018-05-04 19:31:02 +0200 |
|---|---|---|
| committer | John MacFarlane <jgm@berkeley.edu> | 2018-05-04 10:31:02 -0700 |
| commit | 59f0c1d83bb573341f8ca0bf796ae41c82afd044 (patch) | |
| tree | db3f12a0c722dee2beebb640b6eb84486b644039 /src/Text/Pandoc/Class.hs | |
| parent | 8cd3f19dc54124ec033069bc2f7018dc34866745 (diff) | |
| download | pandoc-59f0c1d83bb573341f8ca0bf796ae41c82afd044.tar.gz | |
catch IO errors when writing media files, closes #4559 (#4619)
If we do not catch these errors, any malformed entry in a media bag
could cause the loss of a whole document output. An example of
malformed entry is an entry with an empty file path.
Diffstat (limited to 'src/Text/Pandoc/Class.hs')
| -rw-r--r-- | src/Text/Pandoc/Class.hs | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/Text/Pandoc/Class.hs b/src/Text/Pandoc/Class.hs index 3529054e6..911ba98b5 100644 --- a/src/Text/Pandoc/Class.hs +++ b/src/Text/Pandoc/Class.hs @@ -477,6 +477,14 @@ liftIOError f u = do Left e -> throwError $ PandocIOError u e Right r -> return r +-- | Show potential IO errors to the user continuing execution anyway +logIOError :: IO () -> PandocIO () +logIOError f = do + res <- liftIO $ tryIOError f + case res of + Left e -> report $ IgnoredIOError (E.displayException e) + Right _ -> pure () + instance PandocMonad PandocIO where lookupEnv = liftIO . IO.lookupEnv getCurrentTime = liftIO IO.getCurrentTime @@ -862,7 +870,7 @@ writeMedia dir mediabag subpath = do Just (_, bs) -> do report $ Extracting fullpath liftIOError (createDirectoryIfMissing True) (takeDirectory fullpath) - liftIOError (\p -> BL.writeFile p bs) fullpath + logIOError $ BL.writeFile fullpath bs adjustImagePath :: FilePath -> [FilePath] -> Inline -> Inline adjustImagePath dir paths (Image attr lab (src, tit)) |