pre-commit Git hook to JSONlint - place it in .git/hooks

pre-commit

#!/bin/sh
 
git diff-index -z --cached HEAD --name-only --diff-filter=ACMRTUXB |
xargs -0 -t -L1 /usr/local/bin/jsonlint -c;
 
if [ "$?" != "0" ]; then
  echo "\nOne or more JSON file didn't pass jsonlint'ing.";
  echo "Fix them before committing. If it is not possible to fix them all commit with the option --no-verify.";
 
  exit 1;
fi

This works on a mac. xargs is a little bit different on linux where it probably should be changed to xargs --null --no-run-if-empty /usr/local/bin/jsonlint -c;.
This assumes jsonlint 1.6.x is installed in /usr/local/bin

// , Nice work. This was the third result in my search for jsonlint hook.