So CodeKit 3 was just released and the Hooks feature is now perfect for me to try this something I'd contemplated for some time now...

Basically, I'll use XSLT to process an XSLT stylesheet when it's saved, just to find some of the most basic errors that pops up, from time to time. E.g., managing to save a non-well-formed file (it happens) or writing a clever thing where you use call-template to render something and then when you went to write the template, you used your match template snippet instead.

This initial linter catches some of those things.

(Note: The well-formedness error is actually caught by the XML parser when it tries to load the stylesheet. Just so you don't waste a lot of time digging for that :-)

Here's the Bash script I whipped together for this:

msg=$(xsltproc --xinclude $PATH_TO_XSLT_LINT_FILE $CK_INPUT_PATH)
if [[ "" = "$msg" ]]; then
	exit 0
else
	echo $msg >&2
	exit 1
fi

Note: You'll need to replace $PATH_TO_XSLT_LINT_FILE with the full path to the XSLTLint.xslt file, wherever you chose to install it (mine's in ~/Development/lib/ somewhere...)

It's set up as a Shell Script hook to execute when a file is processed and its Filename Ends With .xslt

You also need to configure XSLT as one of the "Other" languages in CodeKit, so CodeKit knows that if an XSLT file is saved, it should be processed somehow. I've set it up like this:

This is a work in progress, obviously - let me know if you have any questions!

Chriztian Steinmeier, October 2016.