JSON candidates are wrapped in parentheses

[Wolfgang Faust]

When jsdelta is passed a JSON file, it outputs candidate files (delta_js_1.json and so on) with the JSON wrapped in parentheses, like so:

({"foo": "bar"});

This means that the file is not valid JSON, so trying to delta JSON files doesn't work properly.

I don't know enough about esprima to be able to immediately identify why it's doing this and how to stop it. For my test script I have worked around this by stripping the characters out with the following ugly hack:

if grep '^({' $1 > /dev/null ; then
        cat $1 | head -c-2 | tail -c+2 > $TMPDIR/npm-shrinkwrap.json
else
        cp $1 $TMPDIR/npm-shrinkwrap.json
fi

[Max Schaefer]

Hm, yes, that's unfortunate.

#19 hopefully fixes it.

[Manu Sridharan]

I've merged #19 so I'll close this issue. I'll also push a new release of jsdelta to npm soon. @wolfgang42 let us know if you still have issues.