From 629df55544f138442c47e9d64b3d9bbc57b5b225 Mon Sep 17 00:00:00 2001
From: SilverTux <mail.bodnaristvan@gmail.com>
Date: Thu, 6 Oct 2022 17:51:41 +0200
Subject: [PATCH] Fix too long floating point number parse problem

  - Also include @dougthor42's diff to test the fix
    see: [his diff](https://github.com/pre-commit/pre-commit-hooks/compare/main...dougthor42:high-precision-numbers)
---
 pre_commit_hooks/pretty_format_json.py        | 4 ++--
 testing/resources/high_precision_numbers.json | 3 +++
 tests/pretty_format_json_test.py              | 2 ++
 3 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 testing/resources/high_precision_numbers.json

diff --git a/pre_commit_hooks/pretty_format_json.py b/pre_commit_hooks/pretty_format_json.py
index 627a11c..420bd73 100644
--- a/pre_commit_hooks/pretty_format_json.py
+++ b/pre_commit_hooks/pretty_format_json.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import argparse
-import json
+import simplejson as json
 import sys
 from difflib import unified_diff
 from typing import Mapping
@@ -23,7 +23,7 @@ def _get_pretty_format(
             after.sort()
         return dict(before + after)
     json_pretty = json.dumps(
-        json.loads(contents, object_pairs_hook=pairs_first),
+        json.loads(contents, object_pairs_hook=pairs_first, use_decimal=True),
         indent=indent,
         ensure_ascii=ensure_ascii,
     )
diff --git a/testing/resources/high_precision_numbers.json b/testing/resources/high_precision_numbers.json
new file mode 100644
index 0000000..740fef7
--- /dev/null
+++ b/testing/resources/high_precision_numbers.json
@@ -0,0 +1,3 @@
+{
+  "foo": 4.4257052820783003
+}
diff --git a/tests/pretty_format_json_test.py b/tests/pretty_format_json_test.py
index 5ded724..16a3328 100644
--- a/tests/pretty_format_json_test.py
+++ b/tests/pretty_format_json_test.py
@@ -23,6 +23,8 @@ def test_parse_num_to_int():
         ('unsorted_pretty_formatted_json.json', 1),
         ('non_ascii_pretty_formatted_json.json', 1),
         ('pretty_formatted_json.json', 0),
+        # numbers with high precision should not be modified.
+        ('high_precision_numbers.json', 0),
     ),
 )
 def test_main(filename, expected_retval):