Debugging

Increasing Verbosity

The verbosity of contemplate can be increased by specifying -v (debug output) or -vv (trace output). Changes to rendered templates can be written to stderr by specifying the --diff option, while the --dry-run/-n command-line option will suppress the rendered template to be written.

Templates

A list of all available filters can be dumped using the debug() built-in:

echo "{{ debug() }}" | contemplate