requirements-txt-fixer now supports indents before comments

Author: greshilov

pre_commit_hooks/requirements_txt_fixer.py

@@ -95,7 +95,7 @@ def fix_requirements(f: IO[bytes]) -> int:
                 requirement.value = b'\n'
             else:
                 requirement.comments.append(line)
-        elif line.startswith(b'#') or line.strip() == b'':
+        elif line.lstrip().startswith(b'#') or line.strip() == b'':
             requirement.comments.append(line)
         else:
             requirement.append_value(line)

tests/requirements_txt_fixer_test.py

@@ -30,6 +30,8 @@
         ),
         (b'#comment\n\nfoo\nbar\n', FAIL, b'#comment\n\nbar\nfoo\n'),
         (b'#comment\n\nbar\nfoo\n', PASS, b'#comment\n\nbar\nfoo\n'),
+        (b'foo\n\t#comment with indent\nbar\n', FAIL, b'\t#comment with indent\nbar\nfoo\n'),
+        (b'bar\n\t#comment with indent\nfoo\n', PASS, b'bar\n\t#comment with indent\nfoo\n'),
         (b'\nfoo\nbar\n', FAIL, b'bar\n\nfoo\n'),
         (b'\nbar\nfoo\n', PASS, b'\nbar\nfoo\n'),
         (