Bug#1101989: libconfig-model-dpkg-perl: scan-copyrights crashes on eslint

[Dominique Dumont]

On Thursday, 3 April 2025 18:03:59 Central European Summer Time you wrote:
> While running scan-copyrights on eslint the following error is triggered:
> 
> malformed JSON string, neither tag, array, object, number, string or atom,
> at character offset 0 (before "\x{feff}{\n    "priv...") at
> /usr/share/perl5/JSON.pm line 190, <$pipe> line 1477.
> 
> The issue seems to be triggered by invalid json files
> - tests/fixtures/config-file/broken-package-json/package.json
> - tests/fixtures/ignored-paths/broken-package-json/package.json

Like #1101988, you must configure cme to skip these files. See
https://github.com/dod38fr/config-model/wiki/Updating-debian-copyright-file-with-cme#filling-missing-information
https://manpages.debian.org/buster/libconfig-model-dpkg-perl/Dpkg::Copyright::Scanner.3pm.en.html#Filling_the_blanks

> Also file tests/fixtures/config-file/bom/package.json makes he tool to crash
> but due to different reasons.

This file contain non printable characters (eb bb bf) before the first {, so it cannot be parsed by JSON module:
 $ hexdump -C tests/fixtures/config-file/bom/package.json
00000000  ef bb bf 7b 0a 20 20 20  20 22 70 72 69 76 61 74  |...{.    "privat|
00000010  65 22 3a 20 74 72 75 65  2c 0a 20 20 20 20 22 6e  |e": true,.    "n|
00000020  61 6d 65 22 3a 20 22 65  73 6c 69 6e 74 2d 74 65  |ame": "eslint-te|
00000030  73 74 22 2c 0a 20 20 20  20 22 76 65 72 73 69 6f  |st",.    "versio|
00000040  6e 22 3a 20 22 30 2e 30  2e 30 22 2c 0a 20 20 20  |n": "0.0.0",.   |
00000050  20 22 65 73 6c 69 6e 74  43 6f 6e 66 69 67 22 3a  | "eslintConfig":|
00000060  20 7b 0a 20 20 20 20 20  20 20 20 22 72 75 6c 65  | {.        "rule|
00000070  73 22 3a 20 7b 0a 20 20  20 20 20 20 20 20 20 20  |s": {.          |
00000080  20 20 22 73 65 6d 69 22  3a 20 22 65 72 72 6f 72  |  "semi": "error|
00000090  22 0a 20 20 20 20 20 20  20 20 7d 0a 20 20 20 20  |".        }.    |
000000a0  7d 0a 7d 0a                                       |}.}.|
000000a4

You must add a skip instruction in debian/fill.copyright.blanks.yml to skip this file

All the best