On windows, the 'unixFilter' function used window's 'createProcess'
function to create the external process that will filter some String
input. The problem with this is that it is unable to execute batch
stubs (eg. anything created using 'gem install ...') even if its in
$PATH. Anyways a solution to this issue is to execute the batch file
explicitly using 'cmd /c batchfile' but there is no rational way to know
where said batchfile is on the system. My solution is to detect windows
using the System.Info module and then instead of using 'proc' to create
the function, use 'shell' instead which will be able to execute
everything 'proc' can + batch files.
Inspired by: http://www.blaenkdenum.com/posts/the-switch-to-hakyll/#scss
Signed-off-by: Collin J. Doering <rekahsoft@gmail.com>
The old test returns an exit code of 1 whenever the number of
errors is >= 0, which should always be the case. The fix replaces
this with a test whether the number of errors is strictly > 0.
I had to prepend some Rules to global Rules set. This might be possible
to replaced by a correct Store.set call.
I also had to prepend some Compile rules.
Pandoc 1.12 decouples citeproc-hs from itself, so there is no longer a
Text.Pandoc.Biblio module in Pandoc. Further, citeproc-hs depends on
pandoc-types 1.10 but Pandoc 1.12 depends on pandoc-types 1.12. To
alleviate these issues, pandoc-citeproc was created which includes a
copy of the citeproc-hs source made to be compatible, since the
developer of citeproc-hs is apparently MIA.
pandoc-citeproc is a separate module that handles the mixture of
citeproc-hs and Pandoc. It includes `processCites` in Text.CSL.Pandoc,
which is the new name of what used to be `processBiblio` from
Text.Pandoc.Biblio
Most of these changes are seamless, consisting of simple name changes in
both functions and modules. However, a more direct change in the
Hakyll API itself is that `readPandocBiblio`'s second parameter, the
CSL, is now mandatory, i.e. not of type Maybe. This is to reflect the
same change in the underlying processing function from Text.CSL.Pandoc,
`processCites`, where the Style argument is now mandatory, and the style
is derived from the CSL.
See the old function:
processBiblio :: Maybe Style -> [Reference] -> Pandoc -> Pandoc
Compared to the new one:
processCites :: Style -> [Reference] -> Pandoc -> Pandoc
Sources:
* http://hackage.haskell.org/packages/archive/pandoc/1.11.1/doc/html/Text-Pandoc-Biblio.html
* http://hackage.haskell.org/packages/archive/pandoc-citeproc/0.1/doc/html/Text-CSL-Pandoc.html
Similarly, there is no longer a `readerReferences` field in the reader
options structure.
toSiteRoot uses splitPath, joinPath, and takeDirectory from the
System.FilePath module. On Windows systems, the implementation of
joinPath will build up a path using the Windows path separator "\\".
We don't want this behavior since the paths we are working with
are always URLs, so we force POSIX behavior for System.FilePath.
Make it possible to specify the default port to listen on when the
preview server is run. This is useful if another service on the system
already runs on port 8000 (the default), since it's a hassle to keep
providing the port overriding option. For example: ./site preview vs.
./site preview -p 4000
Otherwise laziness allows for the handle to be closed withouth receiving the
input. This caused that no error messages were printed when `unixFilter`s
failed.
