linux-kernel - [PATCH V2] scripts/spdxcheck.py: Strictly read license files in utf-8

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Date:   Wed, 7 Jul 2021 15:48:40 -0500
From:   Nishanth Menon <nm@...com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jonathan Corbet <corbet@....net>
CC:     "Ravikumar, Rahul" <r-ravikumar@...com>,
        lkml <linux-kernel@...r.kernel.org>,
        linux-spdx <linux-spdx@...r.kernel.org>,
        Nishanth Menon <nm@...com>
Subject: [PATCH V2] scripts/spdxcheck.py: Strictly read license files in utf-8

Commit bc41a7f36469 ("LICENSES: Add the CC-BY-4.0 license")
unfortunately introduced LICENSES/dual/CC-BY-4.0 in UTF-8 Unicode text
While python will barf at it with:

FAIL: 'ascii' codec can't decode byte 0xe2 in position 2109: ordinal not in range(128)
Traceback (most recent call last):
  File "scripts/spdxcheck.py", line 244, in <module>
    spdx = read_spdxdata(repo)
  File "scripts/spdxcheck.py", line 47, in read_spdxdata
    for l in open(el.path).readlines():
  File "/usr/lib/python3.6/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 2109: ordinal not in range(128)

While it is indeed debatable if 'Licensor.' used in the license file
needs unicode quotes, instead, force spdxcheck to read utf-8.

Reported-by: Rahul T R <r-ravikumar@...com>
Signed-off-by: Nishanth Menon <nm@...com>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
---

Changes since V1:
* Commit message update to drop "Let's" "Let us".
* Picked up Thomas' Reviewed-by

V1: https://lore.kernel.org/linux-spdx/20210703012128.27946-1-nm@ti.com/

 scripts/spdxcheck.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/spdxcheck.py b/scripts/spdxcheck.py
index 3e784cf9f401..ebd06ae642c9 100755
--- a/scripts/spdxcheck.py
+++ b/scripts/spdxcheck.py
@@ -44,7 +44,7 @@ def read_spdxdata(repo):
                 continue
 
             exception = None
-            for l in open(el.path).readlines():
+            for l in open(el.path, encoding="utf-8").readlines():
                 if l.startswith('Valid-License-Identifier:'):
                     lid = l.split(':')[1].strip().upper()
                     if lid in spdx.licenses:
-- 
2.32.0