False difference detection when using "comments"?

[mgzenitech]

Test case:

jsonlint.json:

{
  "check": true,
  "comments": true,
  "continue": true,
  "enforce-double-quotes": true,
  "no-duplicate-keys": true,
  "sort-keys": true,
  "trailing-newline": true,
  "trim-trailing-commas": true
}

test.json

{
  "a": "b" //aaaa
}

test run:

jsonlint -f jsonlint.json test.json

File: test.json
1 hunk differs
===================================================================
--- test.json.orig
+++ test.json
@@ -1,3 +1,3 @@
 {
-  "a": "b" //aaaa
+  "a": "b"
 }

I'm a missing something in config?

[prantlf]

Yes, you are, but this one is tricky :-) TL;DR: Add this to jsonlint.json:

  "pretty-print": true

Options comments and trailing-commas make the parser ignore those two and they won't be available when the output is printed by default. If you want to retain comments or trailing commas in the output, you have to add the option pretty-print. It will try to retain also these two, which otherwise have no value in the parsed JSON.

Also, depending on your preference, you should add trailing-newline or no-trailing-newline to enforce the standard and avoid false difference reports.